WO2007139116A1 - クロス共重合体の製造方法、得られるクロス共重合体、及びその用途 - Google Patents
クロス共重合体の製造方法、得られるクロス共重合体、及びその用途 Download PDFInfo
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- C08F212/02—Monomers containing only one unsaturated aliphatic radical
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- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
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- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
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- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
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- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65927—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually bridged
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- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
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Definitions
- the present invention relates to a specific cross-copolymer excellent in softness, or excellent in softness and transparency, a thread and a composition thereof, and an application.
- Ethylene styrene (aromatic vinyl compound) copolymers are known (Patent Document 1).
- This copolymer exhibits properties as an elastomer, and further exhibits mechanical properties similar to that of soft PVC, and has functions such as oil resistance and scratch resistance.
- an ethylene styrene copolymer having a isotactic stereoregularity in an alternating structure of ethylene and styrene contained in the copolymer is also known (Patent Documents 2 and 3). Since this copolymer has limited crystallinity (microcrystallinity) based on an alternating structure compared to a copolymer without stereoregularity, it further improves mechanical properties, such as heat resistance and oil resistance. There is a feature that improves the function.
- the above ethylene-styrene copolymers have statistical copolymerization (so-called random copolymerization) described by Bernoulli, first-order, or second-order Markov statistics.
- the heat resistance is essentially insufficient, and the compatibility with styrenic polymers is insufficient.
- the mechanical properties are also more similar to soft PVC compared to olefin polymers such as LLDPE (Linear Low Density Polyethylene), but the mechanical properties are more similar to soft PVC.
- cross-copolymers described in the examples all have polyethylene crystallinity and a crystalline melting point, and the softness is greatly lost as compared with the ethylene-styrene copolymer. Also transparency Compared with the styrene copolymer, it is greatly reduced and substantially opaque.
- Patent Document 1 Japanese Patent No. 2623070
- Patent Document 2 JP-A-9 309925,
- Patent Document 3 Japanese Patent Laid-Open No. 11-130808
- Patent Document 4 Reissue Table 00Z037517
- the present invention improves the heat resistance and compatibility of a conventional ethylene-monoaromatic vinyl polymer copolymer, and further has a softness with low crystallinity compared to a conventional cross-copolymer. And a novel cross-copolymer excellent in transparency and compatibility and a resin composition thereof.
- the present invention relates to a method for producing a cross-copolymer comprising a coordination polymerization step and a subsequent polymerization process such as a key-on polymerization step.
- a polymerization catalyst Using a polymerization catalyst, copolymerization of olefin monomer, aromatic bee compound monomer and aromatic polyene is carried out, and the aromatic bee compound unit content is 15 mol% or more and 40 mol% or less.
- An olefin-aromatic vinylene compound-aromatic polyene copolymer having an aromatic polyene unit content of 0.01 mol% to 3 mol% and the balance being olefin fine content is synthesized, and then ionic polymerization is performed.
- polymerization is carried out using a vinyl polymerization initiator in the coexistence of the olefin-aromatic vinyl compound-aromatic polymer copolymer and a vinyl polymer compound monomer.
- a vinyl polymerization initiator in the coexistence of the olefin-aromatic vinyl compound-aromatic polymer copolymer and a vinyl polymer compound monomer.
- cross-copolymers characterized by Is the law.
- it is a soft cloth copolymer having an A hardness of 50 or more and 85 or less obtained by this production method.
- it is a transparent cloth copolymer obtained by the specific production method of the present invention and having a 1 mm-thick sheet having a haze of 25% or less.
- the cross-copolymer obtained by the production method of the present invention is superior in heat resistance and compatibility as compared with a conventional ethylene-monoaromatic vinyl compound copolymer, and compared with a conventional cross-copolymer. It has excellent softness and transparency.
- FIG. 1 TEM photograph of the cross-copolymer obtained in Example 4 (using a finem press-molded at 180 ° C).
- FIG. 2 TEM photograph of the polymer obtained in Comparative Example 1 (using a film press-molded at 180 ° C).
- the method for producing a cross-copolymer of the present invention is a production method comprising a coordination polymerization step and a subsequent polymerization step comprising an anion polymerization step, wherein the single-site coordination is performed as the coordination polymerization step.
- aromatic Zokubi - Louis ⁇ product unit content is more than 15 mol% 40 mol 0/0, preferably 20 mole 0/0 over 40 mole 0/0 or less, aromatic Po Lin unit including weight 0.01 mol% to 3 mol% or less, preferably 0.01 mol% or more 0.5 mol% or less, the balance being
- the olefin unit content of olefin-monoaromatic vinyl compound-aromatic polyene copolymer was synthesized, and the olefin-aromatic vinyl compound-aromatic polyene copolymer was then used as a cation polymerization process.
- Polymers and key-on polymerizable bees Presence of objects monomers, ⁇ - characterized by polymerization using an on-polymerization initiator.
- the cross-copolymer obtained by this method is composed of an olefin-monoaromatic belief compound that is the main chain and an ion-polymerizable monomer that is a cross-chain to the aromatic polyene copolymer. It is considered that the polymer chain includes a structure (cross-copolymerization structure or Segregated star copolymer structure) in which the polymer chain is bonded via a main chain aromatic polyene unit.
- the structure and the content ratio of the present cross-copolymer are arbitrary, and the cross-copolymer of the present invention is defined as a copolymer (polymer) obtained by the production method of the present invention. .
- the composition of the olefin-aromatic vinyl compound / aromatic polyene copolymer obtained in the coordination polymerization process has an aromatic vinyl compound unit content of 15 mol% to 40 mol%, and the aromatic polyene unit. Content 0.01 mol% or more 3 mol 0 /.
- the composition of the olefin-aromatic bi-aromatic compound-aromatic polyene copolymer is increased by a known general method. Force that can be controlled within the above range Most easily, it can be achieved by changing the monomer charge composition ratio or changing the olefin (ethylene) partial pressure.
- the cross copolymer obtained by the present invention has a total crystal melting heat including olefin crystallinity and other crystallinity of 40 jZg or less, preferably 30 jZg or less.
- the total crystal melting heat can be determined by DSC (Differential Scanning Calorimetry) to determine the total power of the peak areas derived from the melting point observed in the range of 50 ° C to 150 ° C.
- Crystallization occurs based on the ethylene chain structure when the aromatic vinyl compound content in the olefin-aromatic vinyl compound-aromatic polyene copolymer obtained in the coordination polymerization process is less than 15 mol%. As a result, the heat of crystal fusion increases, and the softness and dimensional stability during molding are lost. Further, when the aromatic beer compound unit content is higher than 0 mol%, the glass transition temperature of the finally obtained cross-copolymer becomes high, the low temperature characteristics are deteriorated, and the softness at room temperature is deteriorated. Is preferable because it may be damaged.
- the present production method is a cloth in which the mass proportion of the olefin-aromatic beluie compound-aromatic polyene copolymer obtained in the coordination polymerization step is finally obtained through the anion polymerization step. It is preferably 40% by mass or more and 90% by mass or less with respect to the copolymer mass, more preferably 50% by mass or more and 90% by mass or less, and most preferably 55% by mass or more and 90% by mass or less.
- This is a featured manufacturing method.
- the cross-copolymer obtained by this production method preferably has an A hardness of 50 or more and 85 or less, and particularly preferably an A hardness of 60 or more and 85 or less.
- the mass ratio of the olefin-aromatic vinyl compound-aromatic polyethylene copolymer obtained in this coordination polymerization process is, for example, the amount of ethylene produced in this polymerization process by monitoring ethylene consumption or polymer concentration and composition. It can be controlled by calculating the mass of the coalescence. In order to reduce the mass ratio, for example, the above-mentioned monitoring may be performed, and the time of the coordination polymerization process may be shortened while calculating the mass of the copolymer to be produced, so that the ion polymerization process may be started early. In order to increase the mass ratio, the polymerization time is lengthened and the anion polymerization process is started. Can be delayed.
- a monomer-polymerizable vinyl compound monomer used in the polymer polymerization process may be additionally added at the start of the polymer polymerization process or during the process.
- the mass ratio of the aromatic vinyl compound or aromatic polyene copolymer obtained in this coordination polymerization process can be arbitrarily changed by adding an additional amount of the ion polymerizable vinyl compound monomer. it can.
- the present production method uses the same copolymer having a weight average molecular weight of not more than 150,000 and not less than 30,000 of the olefin-aromatic vinyl compound / aromatic polyene copolymer obtained in the coordination polymerization step. It is a manufacturing method of a cross copolymer.
- the transparent cloth copolymer obtained by this production method has a 1 mm-thick sheet having a haze of 25% or less and a total light transmittance of 75% or more.
- the weight average molecular weight of the olefin-aromatic vinyl compound-aromatic polyethylene copolymer obtained in the coordination polymerization step can be controlled by a known method, but in general, by appropriately changing the polymerization temperature. Can be controlled.
- the present production method comprises the step of preparing a copolymer having a weight average molecular weight of 150,000 or less and 30,000 or more of the olefin-aromatic vinyl compound-aromatic polyene copolymer obtained in the coordination polymerization step.
- the composition of the olefin-aromatic beluoi compound-aromatic polyene copolymer obtained in the coordination polymerization process has an aromatic vinyl compound content of 20 mol% or more and 40 mol% or less.
- the content of the aromatic polyene unit in the olefin-aromatic beluoi compound-aromatic polyene copolymer obtained in the coordination polymerization step of the present production method is 0.01 mol% or more and 3 mol% or more. % Or less. If it is less than 01 mol%, the properties as a cross-copolymer are not sufficient, and if it is higher than 3 mol%, the moldability becomes poor. Considering the mechanical properties and molding strength of the final cross-copolymer (which can be evaluated by fluidity and MFR (Melt Flow Rate)), the preferred aromatic polyene unit content is 0.01 mol.
- the aromatic polyene unit content is from 0.02 mol% to 0.2 mol%. Furthermore, the aromatic polyene unit content is in the range of 0.02 mol% to 0.2 mol%.
- the physical properties of the cross-copolymer are preferred because the functionality of the olefin-aromatic vinyl copolymer, which is the main chain, is sufficiently vigorous.
- the aromatic polyene content is 0.2 mol% or more, the average chain length between the aromatic polyene units of the main chain is shortened, and the main chain olefin-aromatic birui compound is one. In some cases, the functionality of the aromatic polyene copolymer is not fully viable.
- the cross-copolymer obtained by the production method of the present invention exhibits good compatibility with aromatic beryl polymer compounds and propylene polymers such as polystyrene, and is mixed with these.
- aromatic beryl polymer compounds and propylene polymers such as polystyrene
- the physical properties of these polymers can be improved or used as a compatibilizing agent.
- a single site coordination polymerization catalyst is used for the coordination polymerization step of this production method.
- a single site coordination polymerization catalyst composed of a transition metal compound represented by the following general formula (1) or (6) and a cocatalyst is used.
- a and B may be the same or different, unsubstituted or substituted benzoindul group, unsubstituted or substituted cyclopentagel group, unsubstituted or substituted indenyl group, or unsubstituted or substituted fluorenyl group
- a substituted cyclopentaphenanthryl group, a substituted benzoindul group, a substituted cyclopentagel group, a substituted indur group, or a substituted fluorenyl group means that one or more hydrogen atoms that can be substituted have 1 to 20 carbon atoms.
- Alkyl groups aryl groups having 6 to 10 carbon atoms, alkyl aryl groups having 7 to 20 carbon atoms, halogen atoms, OS1R groups, SiR groups or PR groups (wherein R is 1 to 10 carbon atoms)
- a cyclopentaphenanthryl group, a benzoindenyl group, a cyclopentagel group, an indur group, or a fluorenyl group Preferably, A and B may be the same or different. At least one of A and B is an unsubstituted or substituted benzoindenyl group represented by the general formula (2), (3), (4), Or a group selected from an unsubstituted or substituted n-denyl group represented by the general formula (5).
- a and B may be the same or different, and A and B are both unsubstituted or substituted benzoindenyl groups of the general formulas (2), (3), (4), or An unsubstituted or substituted n-denyl group represented by the general formula (5) is also a selected group.
- R1 to R3 are each hydrogen, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an alkyl having 7 to 20 carbon atoms.
- Aryl group, halogen atom, OS1R group, SiR group or PR group R is carbon number 1 ⁇ : L0 charcoal
- R1, R2, and R3 may be the same or different from each other, and adjacent Rl and R2 groups may be combined to form a 5- to 8-membered aromatic ring or aliphatic ring.
- benzo 1-indul group also known as benzo (e) indur group
- 6 benzo 1 indur group 6, 7
- benzo-1-indulyl group examples include a-acenaphtho-1-indul group, 3-cyclopenta [c] phenanthryl group, and 1-cyclopenta [1] phenanthryl group.
- R4 is hydrogen, alkyl group having 1 to 20 carbon atoms, aryl group having 6 to 10 carbon atoms, alkylaryl group having 7 to 20 carbon atoms, halogen atom, OSi R group, SiR, respectively.
- Group or PR group R represents a hydrocarbon group having 1 to 10 carbon atoms
- R4 may be the same or different from each other.
- the non-indenyl group represented by the above general formula includes: More preferably, in the formula, A and B may be the same or different, and both are unsubstituted or substituted benzoindenyl groups represented by the general formulas (2), (3) and (4), It is a group selected from the non-substituted or substituted n-denyl group represented by 5).
- Y has a bond with A and B, and as a substituent, hydrogen or a hydrocarbon group having 1 to 15 carbon atoms (This substituent may contain 1 to 3 other nitrogen atoms, oxygen atoms, sulfur atoms, phosphorus atoms, or silicon atoms), methylene group, silylene group, ethylene group, germylene group, or Boron group. The substituents may be different or the same.
- Y may have a ring structure.
- Y has a bond with A and B, and in addition, hydrogen or a hydrocarbon group having 1 to 15 carbon atoms as a substituent (this substituent has 1 to 3 nitrogen atoms, oxygen atoms, sulfur Methylene group or boron group having an atom, phosphorus atom, or silicon atom).
- X is hydrogen, a hydroxyl group, a halogen, a hydrocarbon group having 1 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a silyl group having a hydrocarbon substituent having 1 to 4 carbon atoms, or 1 to 20 carbon atoms.
- Two X's may have a bond.
- M is zirconium, hafnium, or titanium.
- transition metal compound is preferably a racemate.
- suitable examples of such transition metal compounds include transition metal compounds having a substituted methylene bridge structure specifically exemplified in EP-0872492A2, JP-A-11 130808, JP-A-9 309925, and WO01Z068719.
- transition metal compounds represented by the following general formula (6) can also be suitably used.
- Cp is an unsubstituted or substituted cyclopentaphenanthryl group, an unsubstituted or substituted benzoindul group, an unsubstituted or substituted cyclopentagenyl group, an unsubstituted or substituted nudur group, or an unsubstituted or substituted fluorenyl group Power is the group chosen.
- a substituted cyclopentaphenanthryl group, a substituted benzoindul group, a substituted cyclopentaenyl group, a substituted indenyl group, or a substituted fluorenyl group is an alkyl group in which at least one substitutable hydrogen is 1 to 20 carbon atoms, Aryl group with 6 to 10 carbon atoms, 7 to 2 carbon atoms 0 alkylaryl group, halogen atom, OSiR group, SiR group or PR group (R is any
- a cyclopentaphenanthryl group a benzoindulur group, a cyclopentagel group, an indur group, or a fluoro group substituted with a hydrocarbon group having 1 to 10 carbon atoms.
- Y ′ is a methylene group, a silylene group, an ethylene group, a germylene group, or a boron group that has a bond with Cp and Z and also has hydrogen or a hydrocarbon group having 1 to 15 carbon atoms.
- the substituents may be different or the same.
- Y ′ may have a cyclic structure.
- Z contains a nitrogen atom, an oxygen atom or a sulfur atom, and is a ligand coordinated to M ′ with a nitrogen atom, oxygen atom or sulfur atom, and has a bond with Y ′, and also has hydrogen or a carbon number of 1 to 15 It is a group having a substituent.
- M is zirconium, hafnium, or titanium.
- X ′ is hydrogen, halogen, alkyl group having 1 to 15 carbon atoms, aryl group having 6 to 10 carbon atoms, alkylaryl group having 8 to 12 carbon atoms, and hydrocarbon substituent having 14 carbon atoms.
- n is an integer of 1 or 2.
- Transition metal compounds represented by the general formula (6) are described in W099Z14221 publication EP416815 publication and US6254956 publication.
- a single site coordination polymerization catalyst composed of the transition metal compound represented by the general formula (1) and a co-catalyst is used.
- a cocatalyst used in the coordination polymerization step of this production method a known cocatalyst conventionally used in combination with a transition metal compound can be used.
- an alumoxane or boron compound such as methylaluminoxane (or methylalumoxane or MAO) is preferably used.
- alkylaluminum such as triisobutylaluminum and triethylaluminum may be used together with these alumoxanes and boron compounds.
- Examples of powerful promoters include EP-0872492A 2, JP-A-11-130808, JP-A-9-309925, WO00 / 20426, EP0985689A2, JP-A-6-184179. It is described in Examples include promoters and alkylaluminum compounds.
- a co-catalyst such as alumoxane is used for the metal of the transition metal compound at an aluminum atom Z transition metal atom it of 0.1 to L00000, preferably 10 to L0000. If it is less than 0.1, the transition metal compound cannot be activated effectively, and if it exceeds 100000, it is economically disadvantageous.
- a boron compound When a boron compound is used as the cocatalyst, a force used in a ratio of boron atom to transition metal atom of 0.01 to 100, preferably 0.1 to 10, particularly preferably 1. If it is less than 0.01, the transition metal compound cannot be activated effectively, and if it exceeds 100, it is economically disadvantageous.
- the transition metal compound and the cocatalyst may be mixed and prepared outside the polymerization facility, or may be mixed in the facility during the polymerization.
- the olefins used in the present invention include ethylene, C3-C20 at-olefins, that is, propylene, 1-butene, 1-hexene, 4-methyl-1 pentene, 1-octene, burcyclohexane, and cyclic olefins. That is, cyclopentene and norbornene.
- ethylene or a mixture of ethylene and ⁇ -olefin, ie, propylene, 1-butene, 1-hexene, or 1-octene is used, and ethylene is more preferably used.
- the aromatic beryl compound used in the present invention includes styrene and various substituted styrenes such as ⁇ -methyl styrene, m-methylol styrene, o-methylol styrene, o-t-butyl styrene, Examples include m-t-butynole styrene, p-t-butynole styrene, p-chlorostyrene, o-chlorostyrene, and the like. Industrially, styrene, p-methylstyrene, p-chlorostyrene, particularly preferably styrene is used.
- the aromatic polyene used in the present invention has 10 to 30 carbon atoms, and has a plurality of double bonds (bule groups) and one or more aromatic groups and is capable of coordination polymerization.
- An aromatic polyene in which one of the double bonds (vinyl group) is used for coordination polymerization and the remaining double bond is polymerized.
- at least one kind or a mixture of two or more kinds of orthodibulubenzene, paradibulubenzene, and metadibulubenzene is preferably used.
- polymerization is performed in a liquid monomer without using a solvent, or pentane, hexane, heptane, cyclohexane, benzene, toluene, ethylbenzene, xylene, black-substituted benzene, black-substituted
- saturated aliphatic or aromatic hydrocarbons such as toluene, methylene chloride, and chloroform, or halogenated hydrocarbons alone or in a mixed solvent.
- a mixed alkane solvent, cyclohexane, toluene, ethylbenzene or the like is used.
- the polymerization form may be either solution polymerization or slurry polymerization.
- known methods such as batch polymerization, continuous polymerization, prepolymerization, and multistage polymerization can be used as necessary.
- Pipe-shaped polymerization cans include various known mixers such as dynamic or static mixers and static mixers that also remove heat, and known coolers equipped with heat-removing thin tubes. You may have various coolers. Also, have a patch-type prepolymerization can. Furthermore, methods such as gas phase polymerization can be used.
- the polymerization temperature is suitably 78 ° C to 200 ° C. Polymerization temperatures lower than -78 ° C are industrially disadvantageous, and if it exceeds 200 ° C, transition metal compounds decompose, which is not suitable.
- the pressure at the time of polymerization is suitably 0.1 atm to 100 atm, preferably 1 to 30 atm, particularly industrially particularly preferably 1 to L0 atm.
- the olefin-aromatic vinyl compound obtained in the coordination polymerization step of the production method of the present invention has an aromatic poly-vinyl copolymer unit content of 15 to 40 mol% of aromatic vinyl compound unit.
- the composition has an aromatic polyene unit content of 0.01 mol% or more and 3 mol% or less, and the balance is olefin unit content.
- the transition metal compound of the single-site coordination polymerization catalyst most preferably used has a structure represented by the general formula (1), and A and B may be the same or different. Are both selected from unsubstituted or substituted cyclopentaphenanthryl group, unsubstituted or substituted benzoindulyl group, and unsubstituted or substituted indenyl group, and have a bond with Y 1 B and others.
- the transition metal compound is racemic.
- the resulting olefin-aromatic vinyl compound aromatic-polyene copolymer in this composition range has an alternating structure of olefin-aromatic vinyl compounds, preferably ethylene-aromatic vinyl compounds.
- the alternating structure has a isotactic stereoregularity, and therefore, the cross-copolymer of the present invention has a microcrystalline property derived from the alternating structure.
- the present olefin-aromatic birui compound-aromatic polyene copolymer can give better mechanical properties and oil resistance based on the microcrystallinity of the alternating structure compared to the case where there is no stereoregularity. This characteristic can finally be inherited by the cross-copolymer of the present invention.
- the crystalline melting point due to the microcrystalline nature of the alternating structure of olefin-aromatic vinyl compound-aromatic polyene copolymer is generally in the range of 50 ° C to 120 ° C, and its heat of crystal melting by DSC is preferably 40jZg or less, preferably Is less than 30jZg.
- the cross copolymer of the present invention as a whole can have a heat of crystal fusion of 40 jZg or less, preferably 30 jZg or less.
- the crystallinity of the heat of crystal melting within this range does not adversely affect the softness and moldability of the present cross-copolymer, but rather is advantageous in terms of oil resistance and excellent mechanical properties.
- the mass proportion of the olefin-aromatic vinyl compound aromatic polyene copolymer obtained in the coordination polymerization step is based on the mass of the cross-copolymer finally obtained through the anion polymerization step.
- a hardness of 50 or more and 85 or less, preferably A hardness of 50 or more and 80 or less can be exhibited.
- Olefin-aromatic vinyl compound obtained by coordination polymerization process The mass of the aromatic polyene copolymer is 40% of the mass of the cross-copolymer.
- the content is less than% by mass, for example, when the polymer polymerized in the key-on polymerization process is a rigid polymer such as polystyrene, the resulting cross-copolymer has a higher A hardness than the range of the present invention, and has a softness. Will be lost.
- the mass of the olefin olefin aromatic vinyl copolymer / aromatic polyene copolymer obtained in the coordination polymerization process is higher than 90% by mass of the cross copolymer mass, it is polymerized in the ion polymerization process.
- the characteristics of the polymer chain are not fully exhibited.
- the properties of the polymer chain polymerized in the ion polymerization process include heat resistance and compatibility with the polystyrene polymer.
- the olefin, aromatic vinyl compound, aromatic polyene copolymer obtained in the coordination polymerization step and the monomer polymerizable vinyl compound are coexisted in the presence of the monomer.
- -Polymerization is performed using an on-polymerization initiator.
- Any of the monomer-polymerizable bur compound monomers can be used in the cation polymerization step.
- the monomer for vinyl-polymerizable vinyl compounds styrene, P-methylol styrene, ⁇ tertiary butyl styrene, p chloro styrene, OC-methylol styrene, urnaphthalene, bur anthracene
- Aromatic bur compounds such as butane, gen compounds such as butadiene and isoprene, acrylic acid esters such as methyl acrylate, methacrylic acid esters such as methyl methacrylate and the like, and mixtures thereof.
- an aromatic vinyl compound or a mixture of an aromatic vinyl compound and a monomer capable of polymerizing these monomers most preferably an aromatic vinyl compound is used.
- aromatic polyene that is not polymerized in the coordination polymerization step and remains in the polymerization solution may be polymerized.
- the ion polymerization step of the present invention is carried out after the above-described coordination polymerization step.
- the copolymer obtained in the coordination polymerization step is subjected to an arbitrary polymer recovery method such as a crumb forming method, a steam stripping method, a devolatilization tank, a direct desolvation method using a devolatilization extruder, etc.
- an arbitrary polymer recovery method such as a crumb forming method, a steam stripping method, a devolatilization tank, a direct desolvation method using a devolatilization extruder, etc.
- it may be separated from the polymerization solution and purified for use in the ion polymerization process.
- the residual olefin is released from the polymerized solution after coordination polymerization, with or without release, the next key ion weight. It is economically preferable to use it for a joint process.
- One of the features of the present invention is that a polymer solution containing the
- the solvent in the anion polymerization step is particularly preferably a mixed alkane solvent, cyclohexane, benzene, or the like that does not cause inconvenience such as chain transfer during the anion polymerization, but the polymerization temperature is 150 ° C or lower. If present, other solvents such as toluene and ethylbenzene can be used.
- any known method used in the ion polymerization can be used.
- the polymerization temperature is suitably -78 ° C to 200 ° C.
- Polymerization temperatures lower than -78 ° C are industrially disadvantageous, and if they exceed 150 ° C, chain transfer and the like occur, which is not appropriate.
- industrially preferred is 0 ° C to 200 ° C, particularly preferred is 30 ° C to 150 ° C.
- the pressure at the time of polymerization is suitably 0.1 atm to 100 atm, preferably 1 to 30 atm, particularly industrially particularly preferably 1 to: LO atm.
- a known ion polymerization initiator can be used in the ion polymerization step of the present invention.
- an alkyl lithium compound is a lithium salt or a sodium salt such as biphenyl, naphthalene, or pyrene, and particularly preferably sec-butyl lithium or n (normal) -propyl lithium.
- a polyfunctional initiator, a dilithium compound, or a trilithium compound may be used.
- a known key-on polymerization terminal coupling agent may be used.
- the amount of the initiator is not less than the equivalent of the oxygen atom contained therein, particularly preferably not less than 2 equivalent. It is preferable to use it.
- the amount is sufficiently smaller than the oxygen atom equivalent in methylalumoxane, so the amount of initiator should be reduced. Is possible.
- the length of the cross chain and the molecular weight of the homopolymer that has not been cross-linked can be arbitrarily changed by appropriately adjusting the amount of the initiator.
- the length of the cross-chain part can be estimated from the molecular weight of a homopolymer that has not been cross-linked, but the length is preferably 5000 to 150,000 as a weight average molecular weight. More preferably, it is 5000 or more and 100,000 or less, and particularly preferably 5000 or more and 50,000 or less. Further, its molecular weight distribution (MwZMn) is preferably 3 or less, particularly preferably 1.5 or less.
- the present invention provides a method for producing a cross-copolymer, in which the monomer polymerization monomer used in the polymerization process is preferably an aromatic vinyl monomer. is there.
- the aromatic beryl compound monomer used in the coordination polymerization step and the aromatic beryl compound monomer used in the char polymerization step are the same.
- the aromatic beryl compound monomer used in the coordination polymerization process is styrene, and the ar polymerizable monomer compound used in the ar polymerization process!
- a method for producing a cross-copolymer characterized in that it is styrene, part or all of which is unreacted styrene in the coordination polymerization step.
- the olefin-aromatic vinyl compound-aromatic polyene copolymer obtained in the coordination polymerization step has a weight average molecular weight of 150,000 or less and 30,000 or more. It is preferable to use a cross-copolymer production method. By this production method, a cross-copolymer excellent in transparency can be obtained, and the haze of a 1 mm thickness sheet is 25% or less, preferably 20% or less, or the total light transmittance of an lmm thickness sheet is 75%. % Or more, and preferably 80% or more of transparent cloth copolymer.
- the aromatic beure compound monomer used in the coordination polymerization step and the aromatic bur compound monomer used in the key-on polymerization step are the same in the method for producing the transparent cross-copolymer. I prefer to be ⁇ .
- the aromatic vinyl monomer monomer used in the coordination polymerization step is styrene
- the monomer monomer used in the key polymerization step is styrene. Some or all of them are unreacted styrene in the coordination polymerization step.
- the cross-copolymer of the present invention has a olefin (aromatic beryl compound) unit content in the main chain, or an olefin, an aromatic vinyl compound, and an aromatic polyene copolymer obtained by a coordination polymerization process.
- the hardness can be easily changed by changing the mass ratio of the polymer to the mass of the cross-copolymer finally obtained through the anion polymerization step.
- Heat resistance heat deformation resistance
- Tg glass transition temperature
- the cross-copolymer of the present invention has a tensile property closer to that of soft vinyl chloride compared to conventional ethylene styrene copolymers and other soft rosins.
- the tensile property close to that of soft PVC here is that the relationship between elongation and stress is close to proportional, and the S-S curve has a large upward slope (the increase in stress with respect to elongation is large). is there.
- the Rm value is in the range of about 0.15 to 0.5.
- the Rm value of the cross-copolymer of the present invention can take a value almost in the same range as that of soft vinyl chloride, and has a tensile property similar to that of soft vinyl chloride, that is, texture.
- the slope of the SS curve often decreases after the initial rise (the increase in stress with respect to elongation is small), and the Rm value is also roughly 0. Less than 12, showing different tensile properties and texture.
- the cross-copolymer of the present invention alone exhibits excellent oil resistance at a temperature from room temperature to about 70 ° C.
- This oil resistance can be evaluated by the rate of change in weight (swell rate) and the rate of change in mechanical properties after immersion in engine oil, which is representative of mineral oil, and olive oil, which is representative of vegetable oil.
- conventional olefin-based and styrene-based soft resin thermaloplastic resin
- Vinyl chloride has the oil resistance of the original vinyl chloride resin, but in the case of soft vinyl chloride, there is a drawback that it is hardened because the plasticizer is eluted.
- the cross-copolymer of the present invention exhibits good scratch resistance and abrasion.
- the abrasion resistance and abrasion resistance can be evaluated by a taber abrasion test or a scratch test.
- the cross copolymer of the present invention exhibits good moldability.
- the moldability can be indicated by the ratio of MFR values (eg «JISK7210) measured at different temperatures and with different weights.
- MFR values eg «JISK7210
- the ratio of the MFR values at 2kg and 10kg ratio of load 10kg and 2kg MFR: I / ⁇
- the cross-copolymer of the present invention preferably has a value of not less than 0. OlgZlO and not more than 50 gZlO as the MFR value measured under the conditions of 200 ° C and a load of 2 kg. If the MFR value is lower or higher than this, special consideration may be required during the molding process.
- the cross-copolymer of the present invention can be produced by a known method, for example, Special Table 2004-504928, Special Table 200 4 535270, Special Table 2001-520295, Special Table 2004-505120. it can.
- the sulfonated cross copolymer can be suitably used as a moisture permeable membrane or an ion conductive membrane.
- the cross copolymer of the present invention can be used as a composition with an aromatic beryl polymer compound or propylene polymer listed below.
- the present cross copolymer can be used in the range of 1 to 99% by mass relative to the total mass of the composition.
- the cross-copolymer of the present invention exhibits good compatibility with aromatic beryl polymer compounds and propylene polymers. For this reason, when this cross-copolymer is used in the range of 1 to 50% by mass relative to the total mass of the composition, for example, the impact resistance of the partner aromatic vinyl compound polymer (polystyrene, etc.) or polypropylene can be improved.
- it can be used to adjust the physical properties (for example, elastic modulus) of this cross-copolymer and to improve heat resistance. effective.
- the cross-copolymer of the present invention can be used as a compatibilizing agent for an aromatic beryl polymer compound and a propylene polymer.
- the composition ratio of the aromatic vinyl compound polymer and the propylene polymer is arbitrary, and the present cross-copolymer can be used in the range of 1 to 70% by mass with respect to the total mass of the composition.
- the cross-copolymer of the present invention can be used as a composition with a block copolymer-based polymer, and can be used in a range of 1 to 99% by mass relative to the total mass of the composition. . Since the cross-copolymer of the present invention has good softness and oil resistance, In a composition with a synthetic polymer, oil resistance can be imparted without impairing its softness and mechanical properties.
- aromatic vinyl compound monomers used for aromatic vinyl compound polymers include styrene and various substituted styrenes such as ⁇ -methylstyrene, m-methylstyrene, o-methylolstyrene, o-t. —Butynole styrene, m-t butyl styrene, p-t-butyl styrene, ⁇ -methylol styrene and the like.
- compounds having a plurality of vinyl groups in one molecule such as divinylbenzene are also exemplified.
- a statistical copolymer between these plural aromatic vinyl compounds is also used.
- the stereoregularity between the aromatic groups of the aromatic beluie compound may be atactic, isotactic, synzy tactic, or misalignment.
- Monomers that can be copolymerized with aromatic beryl compounds include butadiene, isoprene, and other conjugated digens; acrylic acid, methacrylic acid, and amide derivatives and ester derivatives thereof; acrylonitrile, anhydrous Maleic acid and its derivatives are mentioned.
- the type of copolymerization is statistical copolymerization.
- the above aromatic vinyl compound-based polymer has a polystyrene-reduced weight average molecular weight of 30,000 or more, preferably 50,000 or more and 500,000 or less, preferably in order to express the physical properties and moldability as a practical resin. Must be less than 300,000. Further, a rubber component may be blended or grafted in order to impart impact resistance.
- the aromatic beryl compound polymers used are, for example, isotactic polystyrene (i-PS), syndiotactic polystyrene (s-PS), atactic polystyrene (a-PS), rubber reinforced.
- Styrene methacrylate ester copolymers such as polystyrene (HIPS), acrylonitrile-butadiene-styrene copolymer (ABS resin), styrene-acrylonitrile copolymer (AS resin), styrene-methyl methacrylate copolymer; styrene Examples thereof include gen copolymers (SBR and the like) and hydrogenated products thereof; styrene-maleic acid copolymers; styrene-imidated maleic acid copolymers, and the like.
- Propylene-based polymer Propylene homopolymer or propylene monomer units of 30 mass 0/0 or more, preferably (including i PP, homo PP, random PP, block PP) is a copolymer comprising more than 50 wt%, for example ⁇ isotactic polypropylene , Syndiotactic polypropylene (s-PP), atactic polypropylene (a-PP), propylene-ethylene block copolymer, propylene-ethylene random copolymer, and propylene-butene copolymer. If necessary, a copolymer obtained by copolymerizing gens such as butadiene and ⁇ - ⁇ gen may be used.
- Examples thereof include an ethylene propylene copolymer (EPDM), an ethylene propylene-ethylidene norbornene copolymer, and the like.
- the above propylene-based polymers have a polystyrene equivalent weight average molecular weight of 10,000 or more, preferably 30,000 or more and 500,000 or less, preferably 30 in order to develop physical properties and molding strength properties as practical resins. Ten thousand or less is required.
- block copolymer having a diblock, triblock, multiblock, starblock or tapered block structure obtained by living polymerization by a cation polymerization or other polymerization method.
- examples thereof include styrene butadiene block copolymer (SBS), styrene isoprene copolymer (SIS), and hydrogenated products thereof (SEBS and SIPS).
- SBS styrene butadiene block copolymer
- SIS styrene isoprene copolymer
- SEBS and SIPS hydrogenated products thereof
- the above block copolymer-based polymer has a polystyrene-reduced weight average molecular weight of 5000 or more, preferably 10,000 or more and 300,000 or less, preferably 200,000 or less, in order to express its physical properties and molding processability as a practical resin. is required.
- cross-copolymer of the present invention can also be used as a composition with the following "other resin, elastomer, rubber”.
- olefinic resin such as high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), ethylene monocyclic polyolefin copolymer, etc.
- HDPE high density polyethylene
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- ethylene monocyclic polyolefin copolymer etc.
- propylene-based polymers polyamides such as nylon; polyimides; polyesters such as polyethylene terephthalate; polybutyl alcohol, natural rubber, silicone resin, and silicone rubber.
- the cross-copolymer of the present invention can be blended with any known plasticizer conventionally used for other resins.
- the plasticizer preferably used is an oxygen-containing or nitrogen-containing plasticizer, and is an ester plasticizer, an epoxy plasticizer, an ether plasticizer, or an amid plasticizer.
- plasticizers have a relatively good compatibility with the olefin-aromatic beryl compound aromatic polyene copolymer used in the cross-copolymer of the present invention, and are difficult to prepolymer, and have a glass transition.
- the degree of plasticity that can be evaluated by the degree to which the temperature is lowered can be suitably used.
- an olefin-aromatic vinyl compound-aromatic polyene copolymer particularly an ethylene-aromatic bule compound used in the cross-copolymer of the present invention- It has the effect of promoting the crystallization of the isotactic structure of ethylene and aromatic beryl compound units in the dibutene benzene copolymer and increasing the crystallinity. It can also show the effect of improving oil resistance.
- aromatic, aliphatic and alicyclic mineral oils are easily compatible with the ethylene-monoaromatic beryl compound aromatic polyene copolymer of this composition, and are easy to pour.
- the degree of transition temperature lowering is too low to be evaluated by plasticity.
- Mono-fatty acid esters such as glutamic acid esters, succinic acid esters, and acetic acid esters, phosphoric acid esters, and polyesters thereof.
- epoxy plasticizer examples include epoxy soybean oil and epoxidized linseed oil.
- amide plasticizers that can be suitably used in the present invention include sulfonic acid amides. These plasticizers may be used alone or in combination.
- An ester plasticizer is particularly preferably used in the present invention. These plasticizers are excellent in compatibility with ethylene-aromatic vinyl compounds / aromatic polyene copolymers in this composition range, have excellent plasticizing effects (highly reduced glass transition temperature), and bleed. If there is little, there is an advantage of V.
- a plasticizer for adipic acid ester or acetyl citrate ester is most preferably used in the present invention.
- these plasticizers are used, there is an advantage that crystals are grown in a short time from melt molding in which the crystallization speed is remarkably fast and various physical properties are stabilized.
- the plasticizer is used in an amount of 1 to 30 parts by weight, preferably 1 to 20 parts by weight, based on 100 parts by weight of the cross-copolymer or the resin composition of the present invention. It is as follows. If the amount is less than 1 part by mass, the above effects are insufficient, and if it exceeds 30 parts by mass, bleeding, excessive softening, and excessive stickiness may be caused.
- the inorganic filler is also used to impart flame retardancy to the present cross copolymer.
- the volume average particle diameter of the organic filler is, for example, 20 m or less, preferably 10 m or less. If the volume average particle size is less than 0.5 m or exceeds 20 ⁇ m, the mechanical properties (tensile strength, elongation at break, etc.) of the film are reduced, and flexibility and pinholes are generated. May be caused.
- the volume average particle diameter is a volume average particle diameter measured by a laser diffraction method.
- Examples of the inorganic filler include, for example, aluminum hydroxide, magnesium hydroxide, zirconium hydroxide, calcium hydroxide, potassium hydroxide, barium hydroxide, triphenyl phosphate, ammonium polyphosphate, and polyphosphorus.
- One or more compounds are used The In particular, the use of at least one selected from the group strength of hydroxyaluminum hydroxide, magnesium hydroxide, hydrated talcite, and magnesium carbonate power provides excellent flame retardancy.
- the compounding amount of the inorganic filler is in the range of 1 to 300 parts by mass, preferably 5 to 200 parts by mass, with respect to 100 parts by mass of the present cross-copolymer or its resin composition. If the inorganic filler is less than 1 part by mass, flame retardancy may be inferior. On the other hand, when the inorganic filler exceeds 300 parts by mass, mechanical properties such as moldability and strength of the resin composition may be inferior.
- the method for producing the resin composition, plasticizer composition, and filler composition of the present invention is not particularly limited, and a known appropriate blending method can be used.
- melt mixing can be performed using a single-screw or twin-screw extruder, a Banbury single-type mixer, a plast mill, a kneader, a heating roll, or the like.
- the raw materials Prior to melt mixing, the raw materials may be mixed uniformly with a Henschel mixer, a ribbon blender, a super mixer, a tumbler, or the like.
- the melt mixing temperature is not particularly limited, but is generally 100 to 300 ° C, preferably 150 to 250 ° C.
- the molding method for obtaining a molded body of the cross copolymer of the present invention or various compositions thereof vacuum molding, injection molding, blow molding, inflation molding, extrusion molding, profile extrusion molding, roll molding, Known molding methods such as calendering can be used, whereby various sheets, films, bags, tubes, containers, foamed materials, foamed sheets, wire covering materials, etc. can be formed.
- the coconut resin and rosin composition described in the present invention do not basically contain halogen, they have basic characteristics such as high environmental adaptability and safety.
- the thickness thereof is not particularly limited, but is generally 3 ⁇ m to 1 mm, preferably 10 ⁇ m to 0.5 mm.
- a molding method such as inflation molding, T-die molding, calendar molding, roll molding or the like can be employed.
- the film of the present invention is used for the purpose of improving physical properties, and other suitable films such as isotactic or syndiotactic polypropylene, high density polyethylene, low density polyethylene (LDPE or LLDPE), polystyrene, polyethylene terephthalate.
- the film of the present invention can be multi-layered with films such as ethylene acetate butyl copolymer (EVA). Furthermore, the film of the present invention can have self-adhesiveness and adhesiveness by appropriately selecting the composition. However, when stronger self-adhesiveness is required, a multilayer film with another film having self-adhesiveness can be formed.
- films such as ethylene acetate butyl copolymer (EVA).
- EVA ethylene acetate butyl copolymer
- the film made of the cross-copolymer film of the present invention has a tensile property close to that of the soft PVC indicated by the above Rm value. Therefore, it can be suitably used for laser (synthetic leather) applications in which soft vinyl chloride has been suitably used. At that time, the softness, oil resistance, and abrasion resistance of the present cross copolymer are great advantages.
- the specific use of the film of the present invention is not particularly limited, it is useful as a general packaging material and container, and used for packaging films, stretch films, shrink films, various masking films, protective films, bags, and pouches. Can do.
- the cross-copolymer of the present invention or a film having a resin composition mainly containing the cross-copolymer can be used as various tape substrates.
- the resin composition mainly containing a cross-copolymer is contained in an amount of 50% by mass or more based on the mass of the tape base material excluding the above inorganic filler> (mainly the amount of lipid lipid). It shows that.
- the resin is optional, but preferably the above “aromatic beer compound polymer”, “propylene polymer”, and Z or “block copolymer polymer”. It is. These are appropriately blended for adjusting the elastic modulus and modulus of the tape substrate and imparting heat resistance.
- the above inorganic filler is preferably added in order to impart flame retardancy to the tape base material, and its blending amount is arbitrary within a known range.
- the mass is 70% by mass or more.
- the composition containing the present cross-copolymer is used as a tape base material to form an adhesive tape.
- known pressure-sensitive adhesives, additives, and known molding methods are used for molding. Such adhesives, additives, and molding methods are described in, for example, Japanese Patent Publication No. 2000-111646.
- Adhesive tapes that can also be used as a base material for this tape are various types of tapes for binding, sealing tapes, protective tapes, fixing tapes, various tapes for electronic materials, such as dicing tapes and knock grinding tapes. Alternatively, it can be suitably used as a tape substrate such as a masking tape. It is also useful as various labels.
- the film of the present invention can be subjected to surface treatment such as corona, ozone, and plasma, application of an antifogging agent, application of a lubricant, printing, and the like.
- the film of the present invention can be produced as a stretched film that has been stretched uniaxially or biaxially as required.
- the films of the present invention may be bonded to each other or other materials such as thermoplastic resin by a technique such as fusion by a technique such as heat, ultrasonic wave, high frequency, adhesion by a solvent or the like. it can.
- the film of the present invention has a thickness of, for example, 100 ⁇ m or more, it is used as a packaging tray for foods, electrical products and the like by techniques such as vacuum forming, compression molding, and pressure forming. Can be molded.
- a known colorant, antioxidant, ultraviolet absorber, lubricant, stabilizer, and other additives may be blended in the tape base material as needed, as long as the effects of the present invention are not impaired. it can
- the tape base material is usually an ethylene-aromatic vinyl compound-aromatic polyene copolymer, an aromatic vinyl compound resin, an olefin resin, and an inorganic filler.
- an ethylene-aromatic vinyl compound-aromatic polyene copolymer an aromatic vinyl compound resin
- an olefin resin an inorganic filler.
- Or materials blended as necessary, such as fillers and the mixture is kneaded using a Banbury mixer, roll, extruder, etc., and the kneaded product is compression molded, force-rendered, injected It can be obtained by molding into a film by a known molding method such as molding or extrusion molding.
- the thickness of the tape base material is not particularly limited depending on the application of the adhesive tape, and is, for example, 40 to 500 ⁇ m, preferably 70 to 200 ⁇ m, more preferably 80 to 160 ⁇ m.
- the tape base material may have a single layer form or may have a multiple layer form.
- the electron beam dose should be in the range of 10 to 150 Mrad (mega rads). A range of 15 to 25 Mrad is preferable. If the irradiation dose is less than lOMrad, the temperature dependence is not improved.
- a cross-linking agent for promoting electron beam cross-linking may be added.
- the crosslinking agent include low molecular weight compounds and oligomers having at least two carbon-carbon double bonds in the molecule, such as acrylate compounds, urethane acrylate oligomers, epoxy acrylates. It is a rate oligomer.
- the pressure-sensitive adhesive tape of the present invention is constituted by providing a pressure-sensitive adhesive layer on at least one surface of the tape base material.
- a pressure-sensitive adhesive all existing pressure-sensitive adhesives such as rubber-based, hot-melt-based, acrylic-based, and emulsion-based adhesives can be applied.
- tackifiers, anti-aging agents, curing agents, and the like can be blended.
- Base polymers of rubber adhesives include natural rubber, recycled rubber, silicone rubber, isoprene rubber, styrene butadiene rubber, polyisoprene, NBR, styrene-isoprene copolymer, styrene-isoprene-butadiene copolymer, etc. Is preferred.
- a crosslinking agent, a softening agent, a filler, a flame retardant and the like can be added to the rubber-based pressure-sensitive adhesive as necessary.
- an isocyanate-based crosslinking agent as a crosslinking agent
- a liquid rubber as a softening agent
- calcium carbonate as a filler
- an inorganic flame retardant such as magnesium hydroxide and red phosphorus as a flame retardant.
- Examples of the acrylic pressure-sensitive adhesive include a homopolymer of (meth) acrylic acid ester or a copolymer with a copolymerizable monomer.
- Examples of (meth) acrylic acid esters or copolymerizable monomers include (meth) acrylic acid alkyl esters (for example, methyl ester, ethyl ester, butyl ester, 2-ethylhexyl ester, octyl ester, etc.), (meth) Glycidyl acrylate, (meth) acrylic acid, itaconic acid, maleic anhydride, (meth) acrylic acid amide, (meth) acrylic acid N-hydroxyamide, (meth) acrylic acid alkylaminoalkyl ester (for example, dimethylaminoethyl) And metatalylate, t-butylaminoethyl methacrylate, etc.), butyl acetate, styrene, acrylonitrile and the like
- the tackifier resin can be selected in consideration of the softening point, compatibility with each component, and the like.
- examples include terpene resin, rosin resin, hydrogenated rosin resin, coumarone indene resin, styrene resin, aliphatic and alicyclic oils and their hydrogenated products, terpene phenol Mention may be made of rosin, xylene-based rosin, other aliphatic hydrocarbon rosins or aromatic hydrocarbon rosins.
- the softening point of the tackifying resin is preferably 65 to 170 ° C, and moreover an alicyclic saturated hydrocarbon resin of a petroleum resin having a softening point of 65 to 130 ° C, and a softening point of 80 to 130 ° C.
- the anti-aging agent is used to improve the rubber-based pressure-sensitive adhesive because it has an unsaturated double bond in the rubber molecule and is likely to deteriorate in the presence of oxygen or light.
- the anti-aging agent include a single substance or a mixture of a phenol type anti-aging agent, an amine type anti-aging agent, a benzimidazole type anti-aging agent, a dithiocarbamate anti-aging agent, a phosphorus anti-aging agent, etc. Can be mentioned.
- Examples of the curing agent for acrylic pressure-sensitive adhesives include isocyanate-based, epoxy-based, and amine-based curing agents, and these may be used alone or as a mixture thereof.
- Specific examples of the isocyanate curing agent include polyvalent isocyanate compounds such as 2,4 tolylene diisocyanate, 2,6 tolylene diisocyanate, 1,3 xylylene diisocyanate, and 1,4-xylene diene.
- the means for applying to the tape substrate such as the pressure-sensitive adhesive, pressure-sensitive adhesive imparting agent and anti-aging agent constituting the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape is not particularly limited.
- pressure-sensitive adhesives and pressure-sensitive adhesives An adhesive solution consisting of an imparting agent and an anti-aging agent is applied to one side of the tape substrate by a transfer method. There is a method of applying and drying.
- the thickness of the pressure-sensitive adhesive layer can be appropriately selected within a range that does not impair the adhesiveness and handling properties, but the thickness of the pressure-sensitive adhesive layer varies depending on the use of the pressure-sensitive adhesive tape, but 5 to: LOO m, preferably 10-50 / ⁇ ⁇ . If it is thinner than this, the adhesive force and the rebound force may be reduced. On the other hand, if it is thicker than this, the coating performance may deteriorate.
- the tape base material of the adhesive tape, binding tape, and sealing tape preferably satisfies the following conditions.
- the cross-copolymer of the present invention can satisfy the following conditions when taped by the above-mentioned method, and can be suitably used as a tape base material for an adhesive tape, a binding tape, and a sealing tape.
- the conditions for the tape substrate are as follows:
- the initial elastic modulus (MPa) at room temperature in the MD direction is 50 MPa or more and less than 700 MPa
- MD direction breaking strength (MPa) must be lOMPa or more and less than 70MPa
- MD direction 10% modulus (tensile stress at 10% elongation) is 2MPa or more and less than 15MPa
- MD ratio modulus (100% modulus Z10% modulus) is 1.6 or more and less than 5;
- Heat shrinkage that is, an evaluation in which a 100mm square tape substrate is allowed to stand in an atmosphere of 110 ° C for 10 minutes and then set to a temperature of 23 ⁇ 2 ° C and humidity of 50 ⁇ 5% RH The MD shrinkage rate is less than 10% after standing in the test chamber for 20 minutes or more,
- the cross-copolymer of the present invention can be made into a thermoplastic elastomer composition by dynamic addition treatment together with other polymers.
- the cross-copolymer of the present invention is 50% by mass to 95% by mass, preferably 60% by mass to 95% by mass, and the other polymer is 5% by mass to 50% by mass, preferably 5% by mass.
- It is a thermoplastic elastomer that contains 40% by mass or less and is obtained by dynamic heating treatment.
- the “other polymer” refers to the above “aromatic beryl polymer compound polymer”, “propylene polymer”, “block copolymer polymer”, or “other resin, elastomer, rubber”. Is.
- thermoplastic elastomer obtained by dynamic addition treatment containing the cross-copolymer of the present invention in an amount of 50% by mass to 95% by mass and a crystalline propylene-based polymer in an amount of 5% by mass to 50% by mass.
- the crystalline propylene-based polymer has a stereoregularity of isotactic or syndiotactic among the above-mentioned propylene-based polymers, and has a crystalline melting point of 100 ° C to 170 ° C, preferably 120 °. It is a polymer that is C or higher and 170 ° C or lower.
- the crystalline propylene polymer can be used alone or in combination.
- thermoplastic elastomer composition of the present invention comprises: (A) a blend comprising the cross-copolymer of the present invention and (B) another polymer (such as a crystalline propylene polymer) as an organic peroxide. It can be obtained by dynamic vulcanization (dynamic heat treatment). Dynamic vulcanization is a technique in which dispersion and cross-linking occur simultaneously by strongly kneading various compounds in a molten state under conditions where the cross-linking agent reacts. AY Coran et al. (Rub. Chem. and Technol. vol. 53, 141 (1980)) and is widely known.
- the dynamic vulcanization is carried out using a Banbury mixer, a closed kneader such as a pressure feeder, a single or twin screw extruder, and the like.
- the kneading temperature is usually 130 to 300 ° C, preferably 150 to 250 ° C.
- the kneading time is usually 1 to 30 minutes.
- organic peroxides used for dynamic vulcanization include dichymyl peroxide, 2,5-dimethyl-2,5-di (tert-butylperoxy) monohexane, 2,5-dimethyl-2, 5-Di (tert-butylperoxy) monohexyne-3, di-tert-butyl Examples include peroxide.
- the organic peroxide is preferably a proportion of (A) 0.1 to 5 parts by mass, more preferably 0.5 to 3 parts by mass with respect to 100 parts by mass of the cross copolymer of the present invention.
- a peroxide crosslinking aid such as maleimide compound and a polyfunctional vinyl monomer such as divinylbenzene and trimethylolpropane trimethacrylate should be added. I can do it.
- the “plasticizer” and “inorganic filler” can be added during the dynamic vulcanization treatment.
- “Plasticizer” is preferably used in an amount of 1 to 20 parts by mass with respect to 100 parts by mass of the polymer component
- “inorganic filler” is preferably used in an amount of 1 to 200 parts by mass with respect to 100 parts by mass of the polymer component.
- thermoplastic elastomer composition thus obtained can have both the high heat resistance of the crystalline propylene polymer and the softness, oil resistance, mechanical properties, etc. of the cross-copolymer of the present invention. .
- the softness of the cross-copolymer of the present invention contributes to the development of this feature.
- the fact that polyethylene crystallinity is substantially not present in the cross-copolymer of the present invention contributes to the improvement of compatibility with the crystalline propylene polymer.
- Petroleum resin and Z or hydrogenated petroleum resin can be added to the cross-copolymer of the present invention to obtain a resin composition.
- the composition is as described above.
- the cross copolymer of the present invention is in the range of 70% to 99% by mass, petroleum resin and Z or hydrogenated petroleum resin in the range of 1% to 30% by mass.
- the cross copolymer of the present invention is in the range of 80% by mass to 99% by mass and the hydrogenated petroleum resin in the range of 1% by mass to 20% by mass.
- the processability (specified by the MFR value) can be widely controlled without impairing the original mechanical properties of the cross-copolymer, and can be adjusted to the MFR suitable for the molding process.
- the blending amount of petroleum resin and Z or hydrogenated petroleum resin which has a molecular weight sufficiently lower than that of the cross-copolymer, increases the MFR of the present resin composition.
- Those skilled in the art can easily adjust the MFR by adjusting the blending amount within the above range.
- cross-coating can be achieved by blending petroleum resin and Z or hydrogenated petroleum resin within this range.
- a hydrogenated petroleum resin having high colorless transparency is preferred for this purpose.
- the resin composition has viscosity derived from petroleum resin and z or hydrogenated petroleum resin.
- more than the above range can be added.
- the cross-copolymer of the present invention is particularly excellent in softness, it is possible to make an oil-resistant material while maintaining softness and mechanical properties by using the above-mentioned block copolymer, particularly a hydrogenated block copolymer and a composition. It is possible to impart mechanical properties similar to that of PVC. In order to further impart heat resistance to this composition, crystalline polyolefin (such as isotactic or syndiotactic polypropylene) may be blended.
- crystalline polyolefin such as isotactic or syndiotactic polypropylene
- the cross copolymer of the present invention can be suitably used as a foam (foam material).
- a known manufacturing method can be used as the method for manufacturing the form.
- known techniques such as a method of adding a foaming agent such as an inorganic or organic chemical foaming agent or a physical foaming agent can be exemplified.
- the cross-copolymer of the present invention and a blowing agent, and if necessary, a crosslinking agent and other additives are heated and melted, heated and compressed while extruding, and then foamed under reduced pressure.
- the foaming agent and, if necessary, the radical crosslinking agent may be added before the polymer is dry blended or after heat melting.
- heat blends can be carried out by a known method, for example, an extruder, a mixer, or a blender.
- a method of crosslinking by radiation electron beam, gamma ray etc.
- Known techniques relating to foams are described in, for example, “Plastic Foam Handbook” (published by Nikkan Kogyo Shimbun, 1973).
- the method described in WOOOZ37517 and JP-T-2001-514275 can be preferably used for the production of a foam.
- the cross-copolymer of the present invention has a crystallinity of a certain value or less, and therefore a foam having excellent softness and texture can be easily obtained. There are features.
- the composition of the above “aromatic vinyl compound polymer”, “propylene polymer”, “block copolymer polymer” and the cross copolymer of the present invention is used. Moyo.
- a dispersant a softener, an anti-tacking agent, a filler, a pigment and the like can be added to the foam of the present invention.
- the method for producing the foam of the present invention is not particularly limited, and examples thereof include a physical foaming method by gas injection, a water foaming method, and a chemical foaming method using a chemical foaming agent. It is also possible to add a foaming agent to the bead or the like and foam it later.
- foam sheet, film, etc. there are no particular restrictions on the molding method of the obtained foam sheet, film, etc., such as extrusion molding, injection molding, professional molding, etc. Further, sheet film etc. can be molded into containers etc. by thermoforming, compression molding, etc. is there. Also, embossing force, printing, etc. can be performed. This cross copolymer is characterized by excellent printability.
- the foam of the present invention can be used as a container for building materials such as floor materials, wall materials and wallpaper, interior / exterior products for automobiles, electrical material parts, gaskets, cushioning materials, foods and the like.
- composition, cross-linked product and foam containing the cross-copolymer of the present invention are useful as a film, sheet, tube, container and the like.
- it can be suitably used as building materials, wall materials, wallpaper, and floor materials.
- building materials, wall materials, wallpaper, and flooring materials are described in, for example, W09 6/04419, EP0661345, WO98 / 10160, and the like.
- the use of high mechanical strength and high filler content while maintaining the mechanical properties and physical properties such as elongation, especially when used in these applications, can impart flame retardancy. Means great value.
- the cross copolymer and the resin composition described in the present invention can be suitably used as various electric wires and cable coating materials.
- a filler and / or a composition with a known flame retardant is excellent in softness, mechanical properties, wear resistance, and oil resistance, and is suitable for such applications.
- various known crosslinking methods for example, a chemical bridge using a crosslinking agent, or a crosslinking method using an electron beam.
- the 13C—NMR ⁇ vector uses ⁇ -500 manufactured by JEOL Ltd., using heavy chloroform-form solvent or heavy 1,1,2,2-tetrachloroethane solvent, TMS (tetramethylsilane) Measured with reference to.
- TMS tetramethylsilane
- the measurement based on TMS here is as follows. First, the shift value of the center peak of the triplet 13C-NMR peak of deuterated 1, 1, 2, 2-tetrachloroethane was determined based on TMS. Next, the copolymer was dissolved in deuterated 1,1,2,2-tetrachloroethane, and 13C-NMR was measured. The peak shift values were calculated for 3 of deuterated 1,1,2,2-tetrachloroethane.
- the 13C-NMR spectrum measurement for quantification of the peak area was performed using a proton gate decoupling method with NOE eliminated, with a pulse width of 45 ° and a repetition time of 5 seconds as a standard.
- the content of the styrene unit in the copolymer was determined by 1H-NMR, and the equipment used was 0: -500 and 81 ⁇ 1 manufactured by Nippon Denshi Co., Ltd .; Yuji 250 manufactured by 0 ⁇ . . Heavy 1, 1, 2, 2-tetrachloroethane was dissolved and the measurement was carried out at 80-100 ° C.
- the area intensity of the peak derived from the phenolic group (6.5 to 7.5 ppm) and the proton peak derived from the alkyl group (0.8 to 3 ppm) was compared with TMS as a reference.
- the molecular weight was determined using a standard polystyrene equivalent weight average molecular weight using GPC (gel permeation chromatography). Measurement was performed using HLC-8020 manufactured by Tosoh Corporation with THF as a solvent.
- DSC measurement was performed under a nitrogen stream using a DSC200 manufactured by Seiko Denshi. That is, DSC measurement was performed from 50 ° C. to 240 ° C. at a temperature rising rate of 10 ° C. using lOmg of the resin composition, and the melting point, heat of crystal melting, and glass transition point were obtained. After the first measurement, the second measurement after quenching with liquid nitrogen was powerful.
- the sample for physical property evaluation is the hot press method (temperature 180 ° C, time 3 minutes, pressure 50 kgZc A sheet having a thickness of 1. Omm formed by m2) was used.
- the sheet was cut into a No. 2 1Z2 type test piece shape and measured using an AGS-100D type tensile tester manufactured by Shimadzu Corporation at a tensile speed of 500 mmZmin.
- Hardness ⁇ O IS K-7215 The durometer hardness of Type A was determined according to the durometer hardness test method for plastics. This hardness is an instantaneous value.
- Transparency is turbidity manufactured by Nippon Denshoku Industries Co., Ltd. according to the JIS K-7105 plastic optical property test method after forming a sheet to lm m thickness by the hot press method (temperature 200 ° C, time 4 minutes, pressure 50kgZcm2G) Total light transmittance and haze were measured using NDH2000
- test oil resistance test was performed according to JISK7114.
- a 3 mm-thick circular test piece was immersed in test oil (engine oil, olive oil hexane) at 23 ° C, and the weight change rate after 14 days was measured.
- Weight change rate (%) ⁇ (Weight after immersion test-Weight before immersion test) Weight before Z immersion test
- the rate of change is 0%, there is no change in weight.
- the weight change rate is preferably less than ⁇ 10%.
- JIS2 small 1Z2 dumbbells are immersed in test oil (engine oil, olive oil) at 23 ° C, taken out after 14 days, subjected to a tensile test, the breaking strength is measured, and the retention rate of breaking strength is calculated by the following formula: Asked.
- Break strength retention (%) 100 Break strength after X immersion test Break strength before Z immersion test When the retention rate is 100%, the fracture strength does not change at all.
- the breaking strength retention is preferably about 70% or more and 150% or less.
- JIS No. 2 small 1 Z2 dumbbell is hung in a given oven, heat-treated at a given temperature for 1 hour, length measured before treatment and in the longitudinal and width directions of the dumbbell, and stretched by the following formula: Z shrinkage The deformation rate was determined. The maximum temperature at which the elongation Z shrinkage deformation ratio was within 5% in the vertical or width direction was defined as the heat resistant deformation temperature.
- Elongation deformation rate 100 X (length after test length before test) Z length before test
- Shrinkage deformation rate 100 X (length before test length after test) Z length before test
- Ra (arithmetic mean roughness): the average linear force is the sum of the absolute values of the deviation Yi ( ⁇ m) to the measurement curve
- the metadibutylbenzene used in the following Examples 1, 3 to 6, and 9 to 12 is metadivinylbenzene (isomer purity of 97% or more) manufactured by Asahi Kasei Finechem.
- the isomer purity in this case is the ratio of metadibulene benzene to various dibutenebenzene isomers of ortho, meta, and para.
- the paradibutylbenzene used in Example 7 is paradivinylbenzene (isomer purity of 95% or more) manufactured by Asahi Kasei Finechem.
- the dibutene benzene used in Examples 2 and 8 is manufactured by Aldrich (purity as dibule benzene is 80%, and the meta isomer: para isomer mass ratio of the meta isomer and the nor isomer mixture is 70:30).
- the gel content of the cross copolymer was measured according to ASTM D-2765-84. That is, precisely weighed 1.
- An Og polymer molded product with a diameter of about 1 mm and a length of about 3 mm
- the net bag was collected and dried in a vacuum at 90 ° C for more than 10 hours. After sufficiently cooling, the net bag was precisely weighed, and the amount of polymer gel was calculated by the following formula.
- Example 12 rac dimethylmethylene (4,5 benzone 1 indur) (1 indur) zirconium dichloride (formula 8) was used as a catalyst (transition metal compound).
- a small amount (several tens of ml) of the polymerization solution was sampled and mixed with methanol to precipitate a polymer, thereby obtaining a polymer sample for the coordination polymerization step. From this sampling solution, the polymer yield, composition, molecular weight, etc. in the coordination polymerization process were determined.
- the obtained polymer solution was added little by little into a large amount of vigorously stirred methanol solution to recover the polymer.
- the polymer was air-dried at room temperature for one day and then at 80 ° C. in a vacuum until no mass change was observed. 771 g of a polymer (cross copolymer) was obtained.
- Polymerization was carried out under the conditions described in Table 1 using the same procedure as in Example 1 except that cyclohexane was used as the solvent and the polymerization temperature in the coordination polymerization step was 80 ° C.
- CyH Cyclohexane m: Metadivinylbenzene manufactured by Asahi Kasei Finechem
- the dibulebenzene unit content of the polymer obtained in the combined process was determined from the difference between the amount of unreacted dibutenebenzene in the polymerization solution obtained by gas chromatography analysis and the amount of divinylbenzene used in the polymerization.
- TUS is the total vinyl group content contained in the copolymer, and is the sum of the content of the butyl group derived from the aromatic polyene (divinylbenzene) unit and the butyl group at the end of the polymer.
- 1H-NMR measurement Determined by The DOU value is the dibulebenzene unit content contained in the main chain ethylene styrene-dibulene benzene copolymer.
- the TUS ZDOU value is 1.1. It takes a higher value, generally about 1.2 or more and 10 or less, preferably 1.2 or more and 3 or less.
- the aromatic polyene unit content is too small, and the function as the cross-copolymer of the present invention may be lost.
- Table 4 shows the measurement results of the hardness, transparency, mechanical properties, MFR, and gel content of the polymers obtained in each Example and Comparative Example.
- Table 4 shows the results of using a general soft PVC (Comparative Example 3: A hardness 88 is used and Comparative Example 4: A hardness 75 is used) as a comparative example, and Comparative Example 5: SEBS (H1053). The results were also described.
- Example 6 a sample obtained by kneading SEBS (H1053) and iPP (J226E) at a mass ratio of 7525 at 200 ° C for 5 minutes using a Brabender plasticizer (PL2000 model manufactured by Brabender) (Comparison) The results obtained using Example 6) are also listed.
- the ethylene styrene-dibutene benzene copolymer obtained in the coordination polymerization step of this example has a styrene unit content of 15 mol% to 40 mol%, and a dibutenebenzene content of 0.05 mol. % And 0.2 mol% or less of the ethylene styrene-dibutylbenzene copolymer obtained in the coordination polymerization step of this example and the cross-link finally obtained through the ion polymerization step.
- the heat of crystal melting by DSC of the copolymer showed a value of 30 JZ g or less.
- the mass ratio of the polymer obtained in the coordination polymerization step of this example is 40% by mass or more and 90% by mass or less with respect to the mass of the cross-copolymer finally obtained through the ion polymerization step. It was.
- the A copolymer had a hardness of 50 or more and 85 or less.
- the resulting cross-copolymer When the weight average molecular weight of the polymer obtained through the coordination polymerization process is 150,000 or less, the resulting cross-copolymer is transparent, and the haze of the sheet having a thickness of 1 mm is 25% or less.
- the transmittance shows a value of 75% or more.
- the composition of the ethylene styrene-dibutylbenzene copolymer obtained in the coordination polymerization process satisfies the condition that the styrene unit content is 20 mol% or more and 40 mol% or less, the cross copolymer is more transparent.
- the sheet of lm m thickness showed a haze of 20% or less and a total light transmittance of 80% or more.
- FIGS. 1 and 2 show TEM photographs of the polymer (cross copolymer) obtained in Example 4 and the polymer obtained in Comparative Example 1.
- the cross-copolymer has a relatively uniform nanoscale phase separation structure of about 30 to 50 nm, which is a relatively uniform polymer having a block chain that is also composed of different polymer forces, ie, The presence of a cross-copolymer is indicated.
- the polymer of the comparative example which does not use dibutenebenzene exhibits a micron-scale phase separation structure and is a composition of ethylene styrene copolymer and polystyrene which are incompatible with each other.
- the Rm value is in the range of about 0.15 to 0.5. It can be seen that the Rm value of the cross-copolymer obtained in this example takes a value in the same range as that of soft vinyl chloride, and that it has tensile characteristics similar to that of soft vinyl chloride, that is, texture.
- SEBS hydrogenated styrene butadiene block copolymer
- iPP isotactic PP
- Table 5 shows the oil resistance test results, the heat deformation test results, and the scratch resistance test results.
- the cross-copolymer of the present invention (Example 24) has a mechanical property change (decrease) in which the weight increase due to swelling is remarkably small even when immersed in mineral oil (engine oil) or vegetable oil (olive oil). It can be seen that there is little and very good oil resistance.
- SEBS Comparative Example 5
- S EBSZiPP composition Comparative Example 6
- the cross-copolymer of the present example is also superior in heat resistance (heat deformation resistance) to that of soft vinyl chloride. Furthermore, the scratch resistance is not as good as that of soft PVC, but SEBS and SEBS / iPP It was found to be superior to the composition.
- thermoplastic elastomer composition A dynamic addition treatment was performed as follows to obtain a thermoplastic elastomer composition.
- a brabender-plasticizer (PL2000 model manufactured by Brabender)
- the cross-copolymer obtained in this example and a isotactic polypropylene random type J226E: manufactured by Mitsui Chemicals Co., Ltd.
- Partamyl D the composition (parts by mass) shown in Table 6 is 200 ° C, 6
- a sample was prepared by kneading for 3 minutes at Orpm.
- Example A The polymer obtained in Example 3 was used as a cross copolymer.
- Example B Using the polymer obtained in Example 4 as a cross-copolymer.
- Example C The polymer obtained in Example 4 was used as a cross-copolymer.
- Example D Using the polymer obtained in Example 6 as a cross-copolymer.
- Comparative Example 6 The same composition of SEBS (H1053) and Isotactic PP (J226E) as in Comparative Example 6 above. Similarly, the composition was kneaded with a Brabender plastic coder. Mass ratio 75
- Comparative Example 7 Sales Composition of EPR and Isotactic PP (J226E). Similarly, the composition was kneaded with a brabender-plasticizer. Mass ratio 75:25.
- Comparative Example 8 Commercially available propylene ZEPDM partially crosslinked compound. A hardness 80.
- Comparative Example 9 Commercially available propylene ZSEPS-based partially crosslinked compound. A hardness 80. Table 6 shows the physical property evaluation results.
- thermoplastic elastomers of Examples A, B, C, and D exhibit good heat resistance, mechanical properties, and excellent oil resistance.
- a resin yarn and composition of a cross copolymer and a hydrogenated petroleum resin was obtained as follows.
- Table 7 shows the cross-copolymer and hydrogenated petroleum resin Alcon P-100 (made by Arakawa Chemical Co., Ltd.) obtained in this example using a Brabender plasticizer (PL2000 model made by Brabender).
- a sample was prepared by kneading at 200 ° C. and 60 rpm for 3 minutes with the blending (part by mass).
- Example E Using the polymer obtained in Example 3 as a cross-copolymer.
- Example F Using the polymer obtained in Example 9 as a cross-copolymer.
- Example G Using the polymer obtained in Example 11 as a cross-copolymer.
- Table 7 shows the physical property evaluation results.
- Polymerization was performed using an autoclave with a capacity of 50 L, a stirrer and a jacket for heating and cooling o
- the supply of ethylene to the polymerization can was stopped, the ethylene was quickly released and the internal temperature was cooled to 60 ° C.
- 200 mmol of Sec butyl lithium was introduced from the catalyst tank into the polymerization can with nitrogen gas.
- the ion polymerization started immediately, and the internal temperature rose from 60 ° C to 75 ° C temporarily.
- the temperature was maintained at 70 to 80 ° C. for 30 minutes as it was, and stirring was continued to continue polymerization (a-on polymerization step).
- the obtained polymer solution was poured little by little with a gear pump into vigorously stirred heated water containing a dispersant (pull neck nick) and karimiyoban, and the solvent was removed.
- a dispersed polymer crumb (size about lcm) was obtained.
- the polymer crumb was centrifuged and dehydrated at room temperature for one day and night, and then dried at 60 ° C in vacuum until no mass change was observed. As a result, about 4.3 kg of a polymer (cross copolymer) was obtained.
- Example 13 Polymerization was carried out as in Example 13, except that the ethylene pressure was changed to 3. OMPaG. After about 180 minutes, the ethylene consumption reached 950 L. Therefore, the supply of ethylene was stopped, and in the same manner as in Example 13, the polymer polymerization process and the polymer recovery were carried out.
- Appendix 3 ⁇ 4p..s ants s ⁇ s3 ⁇ 4 also T * 1 -Slr / ":::-.
- a resin composition of a cross copolymer and a hydrogenated block copolymer resin was obtained as follows.
- Example H The polymer obtained in Example 14 was used as a cross-copolymer. Comparative Example 10 Hydrogenated SBR was used instead of the cross-copolymer.
- Table 10 shows the physical property evaluation results.
- the rosin composition of the cross-copolymer and SEBS of the present invention maintains the same elongation and strength at break as the raw material SEBS, and also has improved oil resistance.
- the resin composition composed of SEBS and hydrogenated SBR has both reduced elongation and strength at break and low oil resistance compared to the raw material SEBS.
- Trial production of a film by a two-roll molding machine was performed using a test mixin glove (NS-155 type) manufactured by Nishimura Machinery. The mouth temperature was appropriately adjusted in the range of 120 ° C. to 170 ° C. for each polymer sample.
- additives were blended in the following proportions with respect to 100 parts by mass of each polymer resin composition.
- Zinc stearate LTB-1830 (lubricant), 0.3 part
- Zinc stearate LTB-1830 (lubricant), 0.3 part
- a film having a thickness of about 0.1 mm was produced by calendering (mouth temperature: 165 ° C). Further, an acrylic pressure-sensitive adhesive was applied to the obtained film and dried, and cut into a 25 mm wide tape to obtain an adhesive tape.
- ⁇ 50MPa or more and less than 700MPa
- Elongation at tensile break is less than 100%, 500% or more
- ⁇ lOMPa or more and less than 70MPa
- ⁇ 1. 6 or more, less than 5
- ⁇ A force that slightly cuts the cut edge.
- the tape substrate is attached or crimped but can be peeled off
- cross copolymer of the present invention or the resin composition mainly containing the cross copolymer is useful as a tape substrate.
- the cross-copolymer obtained by the production method of the present invention is soft with a small degree of crystallinity, and exhibits excellent mechanical properties, heat resistance and oil resistance similar to those of soft vinyl chloride.
- a transparent cross-copolymer can be synthesized efficiently when the specific production conditions of the present invention are satisfied. Since the cross-copolymer obtained by the production method of the present invention does not essentially contain chlorine, it is considered to have high environmental compatibility. Further, since the cross-copolymer obtained by the production method of the present invention essentially does not contain a plasticizer, it is considered to have high environmental compatibility. Industrial applicability
- the cross-copolymer obtained by the production method of the present invention is soft with a low degree of crystallinity, exhibits excellent mechanical properties, heat resistance and oil resistance similar to that of soft vinyl chloride, and is essentially chlorine, plastic. Because it does not contain agents, it is useful as a film, sheet, tube, container, etc. with high environmental compatibility. In particular, it can be suitably used as building materials, wall materials, wallpaper, and floor materials.
- the Japanese Patent Application 2006- 147991 filed on May 29, 2006, the Japanese Patent Application 2006-288070 filed on October 23, 2006, and the May 10, 2007 application The entire contents of the specification, claims, drawings, and abstract of Japanese Patent Application No. 2007-125496 are cited herein and incorporated as the disclosure of the specification of the present invention.
Abstract
Description
Claims
Priority Applications (3)
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US12/302,818 US8722831B2 (en) | 2006-05-29 | 2007-05-29 | Process for production of cross copolymers, cross copolymers obtained by the process, and use thereof |
EP07744336A EP2022806B1 (en) | 2006-05-29 | 2007-05-29 | Process for production of cross copolymers, cross copolymers obtained by the process, and use thereof |
JP2008517948A JP5435942B2 (ja) | 2006-05-29 | 2007-05-29 | クロス共重合体の製造方法、得られるクロス共重合体、及びその用途 |
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US (1) | US8722831B2 (ja) |
EP (1) | EP2022806B1 (ja) |
JP (1) | JP5435942B2 (ja) |
WO (1) | WO2007139116A1 (ja) |
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US8722831B2 (en) | 2014-05-13 |
EP2022806A4 (en) | 2010-08-04 |
EP2022806A1 (en) | 2009-02-11 |
JP5435942B2 (ja) | 2014-03-05 |
US20090263604A1 (en) | 2009-10-22 |
EP2022806B1 (en) | 2011-11-30 |
JPWO2007139116A1 (ja) | 2009-10-08 |
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