WO1993016133A2 - Crosslinkable surface coatings - Google Patents
Crosslinkable surface coatings Download PDFInfo
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- WO1993016133A2 WO1993016133A2 PCT/US1993/001133 US9301133W WO9316133A2 WO 1993016133 A2 WO1993016133 A2 WO 1993016133A2 US 9301133 W US9301133 W US 9301133W WO 9316133 A2 WO9316133 A2 WO 9316133A2
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- polymeric
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- amine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/20—Copolymer characterised by the proportions of the comonomers expressed as weight or mass percentages
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2810/00—Chemical modification of a polymer
- C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31688—Next to aldehyde or ketone condensation product
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y10T428/31692—Next to addition polymer from unsaturated monomers
- Y10T428/31699—Ester, halide or nitrile of addition polymer
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/3188—Next to cellulosic
- Y10T428/31895—Paper or wood
- Y10T428/31906—Ester, halide or nitrile of addition polymer
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
Definitions
- compositions of matter that are able to provide various substrates with crosslinked polymeric surface coatings and films at room temperature.
- Such compositions of matter may take the form of a solution, a dispersion, an emulsion, or a formulation, as dictated by a particular end- use requirement or other consideration.
- one particularly noteworthy aspect of the present invention is directed to a formulation that is characterized as a storage-stable single-package novel polymeric composition of matter that contains at least one polymeric ingredient.
- Additional embodiments of the composition of matter of the present invention contain two or more polymeric ingredients.
- the polymeric ingredient has both an acid-functional and an acetoacetoxy functional pendant moieties.
- Yet another ingredient of the novel composition of matter is a non-polymeric polyfunctional amine having at least two amine-functional moieties.
- composition of matter of the present invention further includes base, in an amount that is effective for providing storage stability.
- the composition of matter additionally includes certain volatile, carrier ingredients that are able to evaporate at room temperature.
- Still another aspect of the present invention is directed to novel methods of producing the novel polymeric compositions of matter mentioned above.
- Yet another aspect of the present invention is directed to a method of applying the novel polymeric compositions of matter onto a substrate for purposes of producing a crosslinked polymeric surface coating on the substrate at room temperature.
- European Patent Application 0 326 723/A1 discloses method for producing a conventional two-package polymeric surface-coating composition that cures at ambient conditions.
- the composition consists of a tertiary amine , a second ingredient characterized as an epoxide, a third ingredient characterized as an acetoacetoxy compound, and a fourth ingredient that possesses Michael reactive double bonds.
- U.S. Pat. No. 4,408,018 notes that the reaction of acetoacetic ester with acrylic acid ester in the presence of a strong base is illustrative of the Michael reaction.
- This patent further note that enols as well as enolates are known to add across the double bonds of alpha, beta-unsaturated ketones and esters.
- this patent is directed to crosslinking acetoacetate moiety containing monomers via a noted Michael reaction with certain alpha, beta-unsaturated esters.
- tetrabutyl ammonium hydroxide is used as base, as is disclosed in this patent, a composition containing these mutually-reactive ingredients is said to gel in three (3) hours or less.
- U.S. Pat. No. 3,668,183 to Hoy et al. discloses single- package polymeric surface-coating compositions that include a blocked polyamine ingredient as well as a polyacetoacetate or a polyacetoacetamide ingredient that is mutually-reactive with the polyamine.
- a ketone or aldehyde is utilized as the blocking agent for the polyamine ingredient.
- the various single-package polymeric compositions disclosed in this patent are typically diluted with conventional solvents.
- Illustrative solvents include an assortment of commercially- available solvents and are often characterized as volatile organic compounds ("VOCs") .
- VOCs volatile organic compounds
- water is not included as a solvent in the formulation of single-package polymeric compositions. Indeed, as disclosed in this patent, such single-package polymeric compositions are characterized as being relatively stable only in the absence of water.
- U.S. Pat. No. 4,772,680 to Noomen et al. points out that the coating compositions disclosed in the '183 Hoy patent above are known to possess undesirable properties.
- Noomen et al. note that the coating compositions of the '183 Hoy patent are known to display certain unsatisfactory properties both to water as well as to certain acids, and unsatisfactory weathering properties when subjected to outdoor-exposure conditions.
- Noomen et al. point out that their invention is based upon liquid coating compositions that include a polyacetoacetate ingredient and a blocked polyamine ingredient which is said to be different from the blocked polyamine ingredient that is disclosed in Hoy.
- the amino groups of the polyamine ingredient disclosed in this patent are said to be blocked by an aldehyde or ketone of specified structure and water is identified as a suitable solvent.
- Noomen et al. in their number of examples, prepare various coating compositions by combining the mutually-reactive polyacetoacetate-containing and blocked polyamine-containing ingredients, such compositions are shown to gel in 3 hours or less. This is impractical for a number of surface-coating applications.
- European Patent Application 341 886/A2 discloses an aqueous coating composition that is characterized as a polymer system which includes a vinyl polymer having chain-pendant amine-functional groups as well as chain-pendant carbonyl-functional groups.
- the polymer system may include a vinyl polymer bearing a chain-pendant amine-functional group and another polymer molecule bearing a chain-pendant carbonyl-functional group.
- This coating composition is disclosed as undergoing a self crosslinking reaction during and/or after coating formation.
- Chain-pendant amine functionality is said to be preferably introduced into the vinyl polymer via an imination reaction, which in turn is said to preferably involve carboxyl or carboxylate salt groups of a precursor polymer and an aziridine compound.
- Particularly preferred vinyl polymers which are said to include pendant polymerized units having amine-functional groups as well as pendant polymerized units derived from olefinically-unsaturated monomer, include polymerized units derived from acetoacetoxyethyl methacrylate.
- Both examples 2 and 9 describe the preparation of an aqueous-based coating composition that was used to produce a film on glass plates. However, there is no disclosure or even a suggestion in this patent that these aqueous-based coating compositions possess any storage stability over an extended period of time.
- aqueous coating composition is disclosed in European Patent Application 390 370/A1.
- this patent application discloses a coating composition which is also characterized as self crosslinkable and is said to include at least one polymer having chain- pendant amine-functional groups as well as at least one non- polymeric compound having at least two ketone groups that are reactable with the chain-pendant amine groups.
- composition of the present invention is an aqueous polymeric formulation characterized in that the formulation comprises: an evaporable aqueous carrier; at least one polymeric ingredient contained within the aqueous carrier and having both acid-functional and acetoacetoxy functional pendant moieties; a non-polymeric polyfunctional amine also contained within the aqueous carrier and having at least two amine-functional moieties; and an effective amount of base, in the aqueous carrier, for inhibiting gellation, which would otherwise occur as a result of crosslinking between the acetoacetoxy functional and amine-functional moieties, both of which are contained within the aqueous carrier.
- one aspect or feature of the present invention is directed to a storage-stable single- package novel polymeric composition of matter that contains at least one polymeric ingredient.
- Additional embodiments of the composition of matter of the present invention contain two or more polymeric ingredients. In the case where there is only one polymeric ingredient, such polymeric ingredient has both acid-functional as well as acetoacetoxy functional pendant moieties; and in the case where there are two or more such polymeric ingredients, one has only acid-functional pendant moieties and the other has only acetoacetoxy functional pendant moieties.
- Still another ingredient of the composition of matter is a non-polymeric polyfunctional amine-containing compound having at least two amine-functional moieties.
- composition of matter of the present invention further includes base, in an amount that is effective for providing storage stability.
- composition of matter or formulation additionally includes an evaporable carrier.
- the evaporable carrier may consist essentially of water only or may comprise water and at least one additional volatile liquid that is able to evaporate at room temperature, wherein the total amount of VOCs in the formulation does not exceed 200 grams per liter of the formulation.
- Optional additional ingredients include polymeric thickeners, polymeric flow-modifying ingredients, and various dispersion or emulsion polymers as well as various solution polymers.
- novel polymeric composition of matter of the present invention is thus a water-based, single-package polymeric composition. Moreover, until used, the novel single-package water-based composition of the present invention will remain stable for 12 months or more when stored at ambient or room temperature. Still further, the single-package water-based polymeric composition of the present invention possesses improved storage stability, in comparison to conventional single-package compositions, when stored at elevated temperature such as 35°C. to 55°C over extended periods of time.
- aqueous polymeric composition of matter of the invention is simply applied to a suitable substrate, such as cardboard, paper, wood, linoleum, concrete, stone, marble and terrazzo, and a variety of metal surfaces including polished metal surfaces and metal foils.
- a suitable substrate such as cardboard, paper, wood, linoleum, concrete, stone, marble and terrazzo, and a variety of metal surfaces including polished metal surfaces and metal foils.
- the evaporation of the volatile components or ingredients of the aqueous polymeric composition at room temperature or at elevated temperature, in turn enables the acetoacetoxy functional moieties within the composition to crosslink with the amine-functional moieties within the composition. This produces a crosslinked polymeric coating on the substrate.
- novel, aqueous polymeric compositions of matter of the present invention can be utilized to produce surface coatings as floor polishes, paints, adhesives and so forth. More particularly, these compositions produce durable, abrasion-resistant and solvent-resistant surface coatings or finishes on various substrates such as cardboard, concrete, counter tops, floors, marble and terrazzo, paper, stone, tile, wood and a variety of metal surfaces including polished metal surfaces and metal foils.
- Still another application for the aqueous polymeric composition of matter of the present invention is in the production of water-based adhesives for various consumer and industrial uses.
- Industrial end-use applications include surface coatings and finishes for construction machinery and equipment, for bridges and road surfaces, for various parts or components of certain production-line machinery, and for a wide assortment of automotive components.
- Consumer end-use applications include durable polymeric films and surface coatings for various components of such a wide assortment of home-use appliances as clothes washers and dryers, dishwashers, radios, ranges and ovens, refrigerators, television sets, and video cassette recorders.
- End-use applications for wood for industrial use, home use, and otherwise include but are not limited to interior and exterior wood surface coatings such as stains and varnishes.
- novel aqueous polymeric compositions of matter of the present invention can also be used by industry or consumers as thickeners for paints and other surface coatings, as well as thickeners for printing inks and other formulations which need to crosslink upon drying.
- various specific aqueous polymeric formulations produced in accordance with the principles of the present invention are able to provide certain finishes as well as other surface treatments for a number of relatively thin substrates such as paper, wherein such finishes and surface treatments are able to crosslink without liberating formaldehyde.
- Such an end use is particularly desirable, for example, in the production of release coatings, overprint varnishes, and especially in relation to the production of rotogravure coatings.
- aqueous polymeric composition of matter or formulation of the present invention is in the production of a wide assortment of architectural surface coatings which need to form films of various thicknesses, at relatively low temperatures, from about 25°C. to about 0°C and yet which provide desirable surface hardness and durability qualities, due to their crosslinked polymeric structure.
- the novel aqueous polymeric composition of matter of the present invention can, moreover, be shipped in bulk-sized quantities or in various smaller-sized containers, as desired.
- the aqueous polymeric composition of matter of the present invention can readily be shipped in 55-gallon drums, or in larger quantities such as in rail cars, if desired.
- the aqueous polymeric compositions can be sold in 1-gallon or smaller containers or even in conventional aerosol containers.
- elevated temperature means any temperature greater than room temperature, which is 20 to 25°C..
- the present invention is directed to a novel, low-VOC, water-based composition of matter that may contain only one polymeric ingredient or that may contain at least two polymeric ingredients.
- the polymeric ingredient possesses both acid- functional as well as acetoacetoxy functional pendant moieties; and in the latter case, one polymeric ingredient has only acid-functional pendant moieties and the other polymeric ingredient has only acetoacetoxy functional pendant moieties.
- the polymeric ingredient contains acid functionality sufficient to provide the polymeric ingredient with an acid number in the range of about 30 to about 300; and the weight-average molecular weight (“Mw") value of such a polymeric ingredient is typically between about 2,000 and 50,000.
- the polymeric ingredient, in the former case preferably has an acid number in the range of about 50 to about 150.
- the polymeric ingredient, again in the former case preferably has an Mw value of about 2,000 to about 40,000 and more preferably of about 2,000 to about 30,000.
- the polymeric ingredient having only acetoacetoxy functional pendant moieties typically has an Mw value of about 2,000 to about 1,000,000.
- the Mw value is between about 5,000 and about
- the Mw value is between about 15,000 and about 300,000; and most preferably, the Mw value is between about 50,000 and about 200,000.
- the polymeric ingredient possessing only acid functionality which resembles the polymeric ingredient of the former case, particularly with respect to acid number ranges, may only be polymeric in structure.
- such a polymeric ingredient also preferably has an acid number in the range of about 50 to about 150 as well as an Mw value of preferably about 2,000 to about 40,000, more preferably about 2,000 to about 30,000.
- the non-polymeric polyfunctional amine-containing compound possessing at least two amine-functional moieties, typically has a chemical formula weight of less than about 2,000 grams per mole, and preferably has a chemical formula weight of less than about 1,000 grams per mole.
- Another aspect or feature of the present invention is the method by which the aqueous polymeric composition of matter is produced. Still another aspect or feature of the present invention is the method whereby the aqueous polymeric composition of matter is applied to a suitable substrate to produce a crosslinked polymeric surface coating or film on the substrate.
- One step of a particularly preferred method of producing the aqueous polymeric composition of matter is to combine preselected relative amounts of initiator, surfactant and evaporable aqueous carrier in an agitated reactor of suitable size, and to heat the agitated reactor contents to a desired reaction temperature, typically 40 to 90°C. , more preferably 75 to 85°C, over a predetermined period of time, which may typically be l hour. At least one optional chain-transfer agent may also be incorporated into the agitated reactor contents at this time, if desired. Nitrogen or another suitable inert gas may be introduced into the reactor headspace to eliminate oxygen from the reaction vessel, if desired.
- the surfactant ingredient or ingredients typically comprises at least one non-ionic emulsifier, at least one anionic emulsifier, or a mixture of non-ionic and anionic emulsifiers.
- Cationic emulsifiers as well as amphoteric emulsifiers may also be used in certain situations if desired.
- organosulfates and sulfonates for example, sodium and potassium alkyl, aryl and alkaryl sulfates and sulfonates, such as sodium 2-ethyl hexyl sulfate, potassium 2-ethyl hexyl sulfate, sodium nonyl sulfate, sodium lauryl sulfate ("NaLS”) , potassium methylbenzene sulfonate, potassium toluene sulfonate, and sodium xylene sulfonate; higher fatty alcohols, for example, stearyl alcohols, lauryl alcohols, and so forth, which have been ethoxylated and sulfonated; dialkyl esters of alkali metal sulfosuccinic acid salts, such as sodium or potassium diamyl sulfosuccinates, in particular sodium dioctyl s
- non-ionic surfactants which can be used in this invention include but are not limited to polyethers, for example, ethylene oxide and propylene oxide condensates which include straight and/or branched chain alkyl and alkaryl polyethylene glycol and polypropylene glycol ethers and thioethers; alkyl-phenoxy poly(ethyleneoxy) ethanols having alkyl groups containing from about 7 to about 18 carbon atoms and having from about 4 to about 240 ethyleneoxy units, such as heptyl-phenoxy poly(ethyleneoxy) ethanols, nonyl- phenoxy poly(ethyleneoxy)ethanols, and so forth; the polyoxy- alkylene derivatives of hexitol, including sorbitans, sorbides, mannitans, and mannides; partial long chain fatty- acid esters, such as the polyoxyalkylene derivatives of sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan tristearate,
- the evaporable carrier will consist essentially of water only. However, in the preparation of certain other embodiments of the aqueous polymeric compositions or formulations of the invention, it will be desirable that the evaporable carrier comprise water and at least one other water-miscible volatile organic liquid, wherein the amount of VOCs does not exceed 200 grams per liter of the formulation.
- water-miscible volatile organic liquids examples include but are not limited to alcohols; dialkyl ethers; ethylene and propylene glycols and their monoalkyl and dialkyl ethers; relatively low formula weight polyethylene oxides and their alkyl and dialkyl ethers (i.e., having a chemical-formula weight of less than about 200 grams per mole) ; dimethyl formamide; dimethyl acetamide; and combinations thereof.
- an emulsion-polymerizable mixture is incorporated into the agitated reactor contents over a predetermined period of time, such as l hour, while maintaining the desired reaction temperature.
- an emulsion-polymerizable mixture may include a monomeric ingredient having acid-functionality; and another embodiment of the emulsion-polymerizable mixture may include at least one acetoacetoxy functional moiety- containing monomeric ingredient as well as at least one acid moiety-containing monomeric ingredient.
- the acid moiety-containing ingredient is typically ethylenically- unsaturated.
- the emulsion-polymerizable mixture may optionally further include at least one monomeric or polymeric acrylic or methacrylic acid ester as well as at least one polymeric or monomeric alkene such as ethylene or at least one vinylic monomer or polymer, provided that any such additional optional ingredient is addition-polymerizable with the acetoacetoxy functional moiety-containing and acid moiety- containing ingredients briefly mentioned above.
- acrylic and methacrylic acid esters include but are not limited to methyl aerylate (“MA”) , methyl methacrylate (“MMA”) , ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, butyl acrylate (“BA”) , butyl methacrylate, 2-ethyl hexyl acrylate (“2-EHA”) , 2-ethyl hexyl methacrylate, decyl acrylate, decyl methacrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate (“HEMA”) , hydroxypropyl acrylate, hydroxypropyl methacrylate, and combinations thereof.
- MA methyl aerylate
- MMA methyl methacrylate
- BA butyl methacrylate
- 2-EHA 2-ethyl hexyl acrylate
- HEMA hydroxyethyl methacrylate
- Suitable vinyl monomers include but are not limited to acrylamide; acrylonitrile; 1,2-butadiene; 1,3-butadiene; chloroprene; 1,3,5-hexatriene; styrene ("St"); alpha-methyl styrene; vinyl acetate; vinyl chloride; vinyl toluene; vinylidene chloride; and combinations thereof.
- Acetoacetoxy functional moiety-containing ingredient suitable for purposes of the present invention, are monomers having the ability to form stable enamine structures by reaction with amines, and having the following structure: 0 R O
- R ⁇ is either H, alkyl having 1 to 10 carbon atoms or phenyl; wherein A is either: R 2 R 3 0
- R 2 is either H, alkyl having 1 to 10 carbon atoms or phenyl, subsituted phenyl, halo, CO 2 CH 3 , or CN; wherein R 3 is either H, alkyl having 1 to 10 carbon atoms or phenyl, substituted phenyl, or halo; wherein R 4 is either alkylene having 1 to 10 carbon atoms or phenylene, or substituted phenylene; wherein R5 is either alkylene or substituted alkylene; wherein any of a, m, n, and q is either 0 or 1; wherein each of X and Y is either - NH - or - 0 -; and wherein B is either A, alkyl having 1 to 10 carbon atoms or phen
- Preferred ethylenically-unsaturated acetoacetoxy functional moiety-containing ingredients include, among the following, various acetoacetamides, including but not limited to:
- I I II I II H 2 C C - N - C - C - C - CH 3
- H 2 C C - N - C - C - C - CH 3 ;
- AAEM acetoacetoxyethyl methacrylate
- AAEA acetoacetoxyethyl acrylate
- AAEM allyl acetoacetate
- vinyl acetoacetate and combinations thereof.
- AAEM is structurally represented as:
- I II II II H 2 C C - C - 0 - CH 2 - CH 2 - 0 - C - CH 2 - C - CH 3 ;
- AAEA is structurally represented as:
- H 2 C CH - C - 0 - CH 2 - CH 2 - 0 - C - CH 2 - C - CH 3 ; allyl acetoacetate is structurally represented as:
- H 2 C CH - CH 2 - C - CH 2 - C - CH 3 ; and vinyl acetoacetate is structurally represented as: 0 0
- H 2 C CH - 0 - C - CH 2 - C - CH 3 .
- Particularly preferred ethylenically-unsaturated acetoacetoxy functional moiety-containing ingredients are acetoacetoxyethyl methacrylate, acetoacetoxyethyl acrylate, and combinations thereof.
- Ethylenically-unsaturated carboxylic acid moiety- containing monomers suitable for purposes of the invention include but are not limited to acrylic acid, ethacrylic acid, fumaric acid-monoethyl ester, fumaric acid, itaconic acid, maleic acid, maleic anhydride, methacrylic acid, fumaric acid-monomethyl ester, methyl hydrogen maleate, and combinations thereof.
- Preferred ethylenically-unsaturated carboxylic acid moiety-containing monomer is selected from the group con ⁇ sisting of acrylic acid, methacrylic acid, and combinations thereof.
- Suitable initiators also called catalysts, include but are not limited to certain water-soluble initiators, various azo compounds, and select redox combinations.
- Suitable water-soluble initiators include but are not limited to peracetic acid; certain perborates; certain percarbonates; certain perphosphates; certain persulfates, such as sodium, potassium, ammonium, and barium persulfate; acetyl peroxide; hydrogen peroxide; hydroperoxides such as tertiary-butyl hydroperoxide; and combinations thereof.
- a presently preferred water-soluble free-radical initiator is ammonium persulfate.
- Suitable azo initiators include but are not limited to azodiisobutyl nitrile; azobisdimethyl valeronitrile; azodiisobutyl amide; azobis(alpha-ethylbutyl nitrile); azobis(alpha, gamma-dimethyl-capronitrile) ; and combinations thereof.
- One redox combination may consist of a water-soluble persulfate as the oxidizing component of the redox combination, and a hydrosulfite, e.g. sodium hydrosulfite, as the reducing component of the redox combination.
- a hydrosulfite e.g. sodium hydrosulfite
- water-soluble bisulfites, metabisulfites and/or thiosulfates, and formaldehyde sulfoxylates may be used in lieu of the hydrosulfites.
- one step of a preferred method of producing the aqueous polymeric composition of matter of the present invention is to combine preselected relative amounts of initiator, surfactant, evaporable aqueous carrier and emulsion-polymerizable ingredients in an agitated reactor of suitable size, and to heat the agitated reactor contents to a desired reaction temperature over a predetermined period of time, thereby producing an aqueous polymeric emulsion.
- chain-transfer agent may also be used at this time, if desired.
- emulsion- polymerizable ingredients are addition-polymerizing, it may be desirable to incorporate certain additional amounts of initiator or initiators, into the agitated reactor contents, to achieve a desired degree or percentage of conversion or reaction of polymerizable ingredients.
- additional amounts of initiator or ingredients may be the same as or may be different from the initiator ingredient or ingredients selected initially. Again, optional chain-transfer agent may be used, if desired.
- Suitable chain-transfer agents include various halo-organic compounds such as carbon tetrabromide and dibromodichloromethane; sulfur-containing compounds such as the aklylthiols including ethanethiol, butanethiol, tert- butyl and ethyl mercaptoacetate, as well as the aromatic thiols; and various other organic compounds having hydrogen atoms which are readily abstracted by free radicals during polymerization.
- chain-transfer agent needed to achieve a particular molecular weight, moreover, can be estimated by the use of the Mayo equation.
- Additional suitable chain-transfer agents or ingredients include but are not limited to butyl mercapto propionate; iso octyl mercapto propionic acid; iso octyl mercapto propionate ("IOMP”) ; bromoform; bromotrichloromethane (“BTCM”) ; carbon tetrachloride; alkyl mercaptans such as n-dodecyl mercaptan, tertiary-dodecyl mercaptan, octyl mercaptan, tetradecyl mercaptan, and hexadecyl mercaptan
- the pH of the reactor contents will be less than 7, and typically will be in the range of 2.5 to 6.
- the thus-produced addition-polymer particles which are typically insoluble in the acidic aqueous phase, may give rise to a latex having a milky-white appearance. Regardless of the latex appearance, an effective amount of base is then added to the reactor contents for preventing gellation.
- the thus-produced emulsion polymer is high (i.e., above about 80 mg of KOH per gram of polymer solids) , the thus-produced white-appearing latex of the reaction will dissolve and become a clear solution.
- This emulsion-polymerization reaction typically results in the production of an alkali-soluble emulsion polymer having both acid-functional and acetoacetoxy functional pendant moieties.
- the polymer will typically not completely dissolve when the basic component is added; and the white, milky appearance may thus persist.
- the polymer particles may become swollen or may be relatively unaffected by the base, depending upon the specific monomers used and the acid value of the polymer.
- the composition of matter thus also includes an amount of base which is effective for providing extended single-package storage stability.
- a suitable non-polymeric polyfunctional amine-containing compound having at least two amine-functional moieties. Whereas one skilled in the art would expect the non-polymeric polyfunctional amine ingredient of the formulation to crosslink with the acetoacetoxy functional groups via enamine formation, and thereby cause gellation, surprisingly, such gellation does not occur.
- the mechanism for stabilization of the formulation is complex and probably results from (a) the base competing with the non-polymeric polyfunctional amine in reaction with the acetoacetoxy groups, thereby reducing the degree of crosslinking in the liquid state, and (b) the base neutralizing carboxylic acid groups on the polymer, thereby forming carboxylate ions, which would increase the solubility of the polymer and thereby lead to swelling rather than to agglomeration.
- the acid value of the polymer be between about 30 and 300, and it is preferred that the acid value of the polymer be between about 50 and 150, which will typically provide an alkali-soluble or alkali-swellable polymer.
- the viscosity of the aqueous composition of matter is very molecular-weight dependent, it is preferred that the molecular weight range of the emulsion polymer be relatively low, in order to maintain desired, low viscosity values at practical solids levels.
- the Mw of the emulsion polymer should thus be in the range of between about 2,000 and 50,000, and preferably in the range of between about 2,000 to about 40,000, and more preferably in the range of between about 2,000 to about 30,000.
- ammonia an amine, an alkali metal hydroxide, or various combinations of these may be used, if desired.
- Suitable amines for such a purpose include but are not limited to methyl amine, dimethyl amine, trimethyl amine, ethyl amine, diethyl amine, triethyl amine, propyl amine, dipropyl amine, butyl amine, and combinations thereof.
- the emulsion polymerization reaction can also be conducted, for example, by performing the step of introducing a major portion of the total amount of initiator, surfactant, optional chain-transfer agent, and evaporable aqueous carrier into the reaction vessel, in the manner described above, and separately performing the step of pre-emulsifying the emulsion-polymerizable mixture in a minor portion of the total amount of initiator, surfactant, optional chain-transfer agent, and evaporable aqueous carrier, for purposes of producing a pre-emulsion mixture; and, thereafter, performing the step of introducing the pre- emulsion
- the composition of matter of the present invention is an aqueous polymeric coating composition which includes a mixture of at least two polymeric ingredients.
- One such polymeric ingredient includes only acetoacetoxy functional pendant moieties; and another polymeric ingredient includes only acid-functional pendant moieties.
- each such polymeric ingredient can be prepared according to well-known staged polymeric reactions. (See, e.g., U.S. Pat. No. 4,325,856 to Ishikawa et al.
- the acetoacetoxy functional moiety-containing polymeric ingredient may be water-insoluble and/or alkali- insoluble; or the acetoacetoxy functional moiety-containing polymeric ingredient may be rendered water-soluble and/or alkali-soluble by the incorporation of such monomers as acrylamide and/or acrylamide derivatives, hydroxy-functional monomers, such as hydroxyethyl acrylate, or other monomers known to impart water-solubility to polymers, such as monomers having ethylene oxide chains of predetermined length.
- polymeric ingredients of the present invention are preferably made via conventional emulsion-polymerization methods
- the above-described polymeric ingredients of the present invention may also be made via conventional solution- polymerization or conventional bulk-polymerization methods, if desired.
- suitable conventional methods for producing the alkali-soluble or alkali-swellable polymeric ingredients of the present invention via various well-known solution- polymerization mechanisms are disclosed e.g. in U.S. Pat. No. 3,673,168 to Burke, Jr., et al.; in U.S. Pat. Nos. 3,753,958 and 3,879,357, both to Wingler et al.; and in U.S. Pat. No. 3,968,059 to Shimada et al.
- suitable conventional methods for producing the polymeric ingredients of the present invention via conventional bulk-polymerization mechanisms are disclosed in U.S. Pat. No. 4,414,370 to Hamielec et al.; in U.S. Pat. No.
- stage one or the first stage of a 2-stage polymerization procedure the thus-produced latex particles are referred to as the stage one polymer.
- stage two of the 2-stage procedure is typically utilized for purposes of producing the ultimate film-forming polymeric ingredient or ingredients.
- the formulation of the invention is an emulsion
- the discontinuous phase of such an aqueous polymeric emulsion comprise discreet particles of the film- forming polymeric ingredient or ingredients
- the latex particles produced via the first-stage polymerization reaction are used as a support resin in the second-stage polymerization procedure, as illustrated by the following description.
- a second monomeric mixture specifically formulated as to produce an addition polymer that is insoluble in aqueous media having a pH of 2 to 10.
- additional water, surfactant, initiator, and/or optional chain-transfer agent may be added, as desired.
- the second monomer mixture is fed into the reaction vessel over a predetermined period of time, typically one hour, while the desired second-stage polymerization reaction temperature is maintained, generally between 40°C. to 90°C.
- the second-stage monomer mixture generally includes at least one addition-polymerizable monomer, such as acrylic or methacrylic acid ester, a vinyl monomer, a nitrile, or an amide, as described hereinabove. Furthermore, the second- stage monomer mixture may optionally further include an acetoacetoxy functional moiety-containing monomer, or an acid moiety-containing monomer, or both, as described above, if desired.
- addition-polymerizable monomer such as acrylic or methacrylic acid ester, a vinyl monomer, a nitrile, or an amide, as described hereinabove.
- the second- stage monomer mixture may optionally further include an acetoacetoxy functional moiety-containing monomer, or an acid moiety-containing monomer, or both, as described above, if desired.
- crosslinking agents that are suitable for purposes of the present invention include but are not limited to divinyl benzene, ethylene glycol diacrylate, ethylene glycol dimethacrylate, trimethylol propane triacrylate, trimethylol propane trimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate, allyl acrylate, allyl maleate, allyl methacrylate, diallyl maleate, polyethylene glycol diacrylate, and polyethylene glycol dimethacrylate.
- the pH of the reactor contents is suitably adjusted, preferably using aqueous ammonia or other base, as previously described, to a pH above 7 and typically in the range of 8 to 9.5.
- the aqueous polymeric emulsion typically consists of insoluble latex particles of second-stage polymer, dispersed throughout the continuous phase of the emulsion.
- desired crosslinking occurs when the acetoacetoxy functional moieties desirably react with the amine-functional moieties of the non-polymeric polyfunctional amine.
- the novel water-based polymeric compositions of matter or formulations of my invention include an effective amount of base, for inhibiting undesirable reaction between the acetoacetoxy functional pendant moieties of the latex particles and the amine- functional moieties of the non-polymeric polyfunctional amine-containing compound, which would otherwise result in gellation. Indeed, desirable reaction, as between these mutually-reactive moieties, does not fully occur until after evaporation of the volatile components of the novel aqueous polymeric formulation.
- a predetermined amount of the above- mentioned non-polymeric polyfunctional amine having at least two amine-functional moieties may, at this point in time, be introduced into the agitated reactor contents, typically over a time period of 5 to 15 minutes or longer.
- the non- polymeric polyfunctional amine upon being thus added to the reactor contents, may dissolve in the continuous phase of the emulsion or may become distributed between the continuous and dispersed phases.
- the polymeric composition thus produced is stable for at least 12 months when stored at room temperature.
- the non-polymeric polyfunctional amine-containing compound possessing at least two amine-functional moieties typically has a chemical-formula weight of less than about 2,000 grams per mole, and preferably has a chemical-formula weight of less than about 1,000 grams per mole.
- non-polymeric polyfunctional amines suitable for purposes of the present invention thus include aliphatic and cycloaliphatic amines having 2 to 10 primary and/or secondary amino groups and 2 to 100 carbon atoms.
- suitable non-polymeric polyfunctional amines include but are not limited to hexamethylene diamine; 2-methyl pentamethylene diamine; 1,3- diamino pentane; dodecane diamine; 1,2-diamino cyclohexane; 1,4-diamino cyclohexane; para-phenylene diamine; 3-methyl piperidine; isophorone diamine; bis-hexamethylene triamine; diethylene triamine; and combinations thereof.
- non-polymeric polyfunctional amines which are suitable, include those containing adducts of ethylene and propylene oxide, such as the "JEFFAMINE” series D, ED and T of Texaco Chemical Company of Houston, Texas, U.S.A.
- Preferred non-polymeric polyfunctional amines include 2 to 4 primary amino groups and 2 to 20 carbon atoms.
- non-polymeric polyfunctional amines include hexamethylene diamine, diethylene triamine, and combinations thereof.
- the thus-produced crosslinkable, novel aqueous polymeric formulation can, for example, be stored at room temperature in a conventional container such as a metal can, a squeezable plastic tube, a glass bottle, an aerosol container, and so forth.
- the crosslinkable aqueous polymeric formulation is applied to a suitable substrate. Evaporation of the evaporable components of the aqueous emulsion then occurs over a predetermined period of time, which is typically governed by ambient conditions.
- Examples 1-5 Coatings Via 1-Stage Polymerization Reactions
- the examples 1-5 illustrate the utility of the novel aqueous formulation of my present invention, when the formulation does not include the second-stage polymeric ingredient briefly mentioned above.
- Those examples reported herein which include the letter C are being reported as comparative examples, and thus are beyond the scope of my present invention.
- Footnotes a.
- the ammonia utilized was 2,5% aqueous NH 3 .
- the hexaraethylene diamine utilized was 10% aqueous HMDA.
- the function of the HMDA was as a "non-polymeric" polyfunctional amine (“PFA”) .
- each aqueous polymeric solution of Examples 1, 2 and 5 the thus-produced formulation contained an average ratio of one (l) acetoacetate functional moiety to one (1) amine- functional moiety.
- Examples 3C and 4C contained neither acetoacetoxy functional moiety nor amine-functional moiety. Indeed, examples 3C and 4C are presented for comparison purposes only, vis-a-vis Examples 1, 2 and 5 (which are illustrative of certain features and advantages of my present invention) .
- a Leneta test chart was attached to a commercially available impression bed, for each polymeric solution that was to be tested. Aqueous polymeric solution was then spread along the top and across the width of each bed-attached chart. Taking the wire-wound rod in both hands, the drawdown of each such polymeric solution was next determined, beginning at the top of each chart, above the location of the thus-applied liquid product. The rod was then drawn downwardly, without rolling, at a steady rate, thereby causing the liquid product to become spread across the chart.
- the thus-produced polymeric films were all dried, both at room temperature overnight, about 8 to 10 hours, and in an oven set at 60°C. for 5 minutes.
- the reactor contents were maintained at 80°C. for an additional 10-minute hold period.
- the pH of the reactor contents was 5.0.
- 10.1 g. of 25% aqueous ammonia dissolved in 10.3 g. of de-ionized water was incorporated into the reactor contents over a time period of 4 minutes, while maintaining the reactor contents at the desired reaction temperature of 80°C. , thereby changing the pH of the reactor contents from 5.0 to 7.6.
- the reactor contents were maintained at 80°C. for an additional 50-minute hold period.
- the reactor contents were next cooled to room temperature.
- the polymeric emulsion thus produced was a white, fluid latex having a pH of 7.6 and a minimum film-forming temperature ("MFT") of 45°C.
- MFT minimum film-forming temperature
- Examples 6-9 four coating compositions (Examples 6-9) were prepared from the above-described latex as follows.
- the coating compositions were prepared by first adding a specified coalescing solvent, namely the monobutyl ether of ethylene glycol, to the above-described latex at room temperature at the rate of 8.0 g. of coalescing solvent over a 1-minute time period, and in the ratio amount of 8.0 g. of coalescing solvent per 100 g. of latex.
- the various, below-indicated amounts of 10% aqueous hexamethylene diamine non-polymeric polyfunctional amine and de-ionized (“DI") water were incorporated into 54.0 g. portions of the above-described latex, as presented in Table VII, below.
- Ratio means the ratio of amine-functional moieties to acetoacetoxy functional moieties, present in the coating formulation of each of Examples 6-9.
- a portion of the above-described coating formulations of Examples 6-9 were applied to 4-inch by 6-inch (about 10- centimeter by 15-centimeter) glass plates, using a #22 wire- wound rod, to produce several sets of surface coatings.
- One such set of surface coatings was allowed to air-dry at room temperature for 4 days prior to having its physical properties evaluated.
- Another such set of surface coatings was dried at 60°C. in an oven for 5 minutes and thereafter allowed to stand at room temperature for 4 days prior to having its physical properties evaluated.
- the polymeric films thus produced (which were clear, incidentally) were tested for solubility in acetone solvent and tetrahydrofuran ("THF") solvent by scraping portions of the polymeric film from the glass plates and immersing the thus-scraped film portions in each of the above-mentioned solvents for a time period of 24 hours.
- the glass plate-applied polymeric films were separately spot-tested with alcohol (in accordance with procedures set forth in Exs. 1-5 above) .
- the glass plate- applied polymeric films were also tested for Konig hardness on a commercially-available hardness tester.
- Procedure No. 1 means the film was air-dried at room temperature over a 4-day time period.
- Procedure No. 2 means the film was oven-dried at 60 degrees Celsius over a 5-minute time period, and thereafter at room temperature for a 4-day time period.
- the alcohol-resistance test was conducted, as described above in connection with Examples 1 through 5, except that the contact time was 15 minutes.
- the hardness value was determined via the above- mentioned “DIN 53157” test procedure, which is also referred to as the Konig pendulum test.
- the Konig value the amount of time that a particular pendulum is swinging, is typically reported in seconds.
- Example 10 Another portion of the above-described polymeric coating formulations (Examples 6-9) was stored at room temperature for four (4) months. Thereafter, new polymeric films were applied to glass plates, dried and evaluated, as described above. The resulting polymeric film-property data of the coating formulations that had been stored at room temperature for four (4) months were virtually identical to the data set forth in Table VIII, above, and thus need not be re- tabulated.
- Example 10 2-Stage Polymerization With Crosslinker Agent This particular example illustrates optional use of a conventional crosslinker agent, via incorporation into the novel aqueous composition of matter of my invention.
- the first-stage polymerization described above in connection with Examples 6-9 was repeated, except that a monomer mixture consisting of 28.4 g. methyl methacrylate (monomer, 44.5 g. butyl acrylate monomer and 16.2 g. acetoacetoxyethyl methacrylate monomer was utilized in the first-stage polymerization. Thereafter, the second-stage polymerization procedure described above was substantially followed, except that the second-stage monomer mixture consisted of 189 g. styrene monomer, 59.9 g. 2-ethylhexyl acrylate monomer, 59.9 g. butyl acrylate monomer, 31.5 g.
- acetoacetoxyethyl methacrylate monomer and 31.5 g. of trimethylolpropane triacrylate crosslinker agent.
- the end-result of thus-employing a two-stage polymerization procedure was a white, fluid latex having a solids content of 44.4 % NV; a pH of 7.4; a Brookfield viscosity of 210 centipoises, utilizing a #2 spindle at 30 RPM, 20°C; and a MFT of 18°C.
- the procedure utilized to determine minimum film-forming temperature was ASTM D 2354- 86. To a 50-gram portion of the thus-produced latex were added 5.9 g. of 10% aqueous HMDA and 5 g.
- samples A and B were then utilized as polymeric coating formulations.
- samples A and B were applied to glass plates and Leneta charts, in accordance with procedures set forth above, utilizing a #22 wire-wound rod, to produce polymeric films on the glass plates; and the glass plate- applied polymeric films were then oven-dried at 60°C. for 5 minutes. Thereafter, the Konig hardness value of each such (now-dry) polymeric film was determined immediately following removal from the oven and cool-down to room temperature, and four (4) days thereafter, with the observed results being reported as follows.
- blocking resistance means the ability to resist fusion together under specified temperature and pressure conditions.
- the procedure to determine blocking resistance is described as follows.
- the Leneta chart-applied polymeric films were placed face-to-face and were thereafter subjected to a pressure of 100 g. per square centimeter for 3 days at 40°C. , and thereafter visually inspected.
- face-to-face means coated side on coated side.
- no blocking in the context of the blocking-resistance test, means that the coatings did not fuse together. In particular, the coatings could readily be removed from each other without damaging the surface of the coatings.
- total blocking also in the context of the blocking-resistance test, means that the coatings fused together completely and could not be removed from each other without damaging the surface of the coatings.
- Example 11 Parquet Floor Lacquer Via 2-Stage Method
- the first-stage polymerization procedure of Examples 6-9 was substantially repeated, except that the amounts of monomer and chain-transfer agent reported in Table XI (below) were utilized to produce the first-stage polymer of this particular example, which illustrates utility of the aqueous formulation of my invention as a lacquer for parquet floors.
- the optional chain-transfer agent used was iso octyl mercapto propionate
- the first-stage polymeric emulsion had a solids content of 21.0% NV and a pH of 2.5.
- the first-stage emulsion polymer had a Tg of 0°C.
- the end-result of my thus-employing a two-stage polymerization procedure was a white, fluid latex having a solids content of about 45% NV, a pH of 7.6, a Brookfield viscosity (utilizing a #2 spindle at 30 RPM, 20°C.) of 110 mpas, and a MFT of 21°C.
- the thus-produced emulsion polymer was found to have a glass-transition temperature of 13°C.
- To a 60-gram portion of the thus-produced latex was added and blended 12.5 g. of a 5% aqueous solution of hexamethylene diamine, 8.5 g. of a commercially-available aqueous dispersion of polyethylene wax, 16 g.
- Example 11 Another portion of the aqueous formulation of Example 11 was stored for six (6) months at room temperature and, thereafter, the aqueous formulation was applied to glass slides and Leneta charts, utilizing procedures substantially set forth hereinabove, except that a #26 wire-wound rod was used.
- the 60-degree specular gloss value of the Leneta chart coating was determined to be 89, and certain solvent-resistance tests were performed upon the polymeric films, with the results being reported in Table XIII, below.
- the test term "specular" relates, in general, to the mirror-like or reflective property of the substrate-applied polymeric film.
- specular gloss of the thus-produced polymeric films was measured using a commercially-available BYK-Mallinkrodt 60- Degree pocket glossmeter. Gloss eter readings were taken across the entire treated floor surface, and the readings were thereafter averaged.
- Example 12C Formulation Lacking Acid-Functional Monomer Coating formulations made without an acid-functional monomer are outside the scope of this invention and have poor storage stability, as is shown by the following.
- yet another coating formulation was prepared, substantially repeating the procedures set forth above for Example 1, except that the ingredients utilized were as set forth in Table XIV, below.
- the resulting polymeric emulsion was a white, fluid latex possessing a solids content of about 27% NV, a pH of 2.0, a Brookfield viscosity (utilizing a #2 spindle at 30 RPM, 20°C.) of 5 mpas, and a MFT of less than 0°C.
- the thus- produced emulsion polymer was found to have a Tg of minus 8°C.
- To a 100-g. sample of this Example 12C latex was added 2.49 g. of 25% aqueous ammonia, 20.0 g. of de-ionized water, and 21.3 g. of a 10% aqueous solution of hexamethylene diamine ("HMDA”), which changed the pH to 11.6.
- HMDA hexamethylene diamine
- Example 13 Separate Polymer Possessing COOH-Functionalitv
- utilization of a polymeric emulsion possessing COOH-functionality in a separate polymer is within the scope of my present invention; and the following example is illustrative.
- Example 12C To a second 100 g. sample of the latex of Example 12C was added 3.64 g. of 25% aqueous ammonia, 87.8 g. of a 30% aqueous solution of an alkali-soluble polymer having an acid value of 78, 64 grams of de-ionized water, and 21.3 g. of 10% aqueous hexamethylene diamine.
- the above-mentioned polymer made in accordance with U.S. Pat. No. 4,529,787, consisted of 25 mole % styrene monomer, 50 mole % methyl methacrylate monomer, 15 mole % butyl acrylate monomer, and 10 mole % acrylic acid monomer.
- the above-named ingredients were mixed into the second 100-g. sample of the Example 12C latex formulation, at room temperature, and in the order mentioned.
- the resulting polymeric emulsion was found to have an initial viscosity of 5 mpas. and a pH of 9.8. After four (4) weeks storage at 50°C. , the viscosity of the thus-produced polymeric emulsion was observed to remain substantially at 5 cPs. and the pH was observed to remain at 9.8.
- Example 14 Pigmented Coatings Via 2-Stage Polymerization This example illustrates the use of a known core-shell polymerization method (as is presently described in U.S. Pat. No. 4,894,397 to Morgan et al.) to prepare crosslinkable, pigmented coatings, in accordance with principles of the present invention. The procedure utilized is described as follows.
- a first-stage monomer mixture consisting of 50 g. of ethyl acrylate monomer, 30 g. of acetoacetoxyethyl methacrylate monomer, 20 g. of methacrylic acid monomer, and 2 g. of the optional chain-transfer agent butyl mercapto propionate.
- a 15-minute hold period followed the monomer mixture addition.
- the first-stage polymeric emulsion had a solids content of 16.8% NV and a pH of 2.4.
- the first-stage emulsion polymer had a Tg of 18°C. After the 15-minute hold period, 100 g.
- the resultant latex was held at 80°C. for 60 additional minutes, before cooling to room temperature.
- the resultant latex was found to have a solids content of 27.7% NV and a pH of 2.7. Thereafter, two separate 200-g. portions of the thus-produced latex were neutralized, each with 8.5 g. of 28% aqueous ammonia, to a pH of 8.7.
- the second of the thus-neutralized latexes had 22.2 g. of 10% aqueous hexamethylene diamine incorporated thereinto and thereafter was used to make a second paint (Paint B) .
- Paints A and B were formulated, each with 33.0 g. of titanium dioxide and 40.1 grams of thus-produced emulsion solids, to produce 200 grams of conventional, white paints, each of about 37.4% NV. Such paints were applied to commercially-available, anodized aluminum panels, utilizing a #36 wire-wound rod. Paints A and B each dried to a polymeric film having a film thickness of about 0.0254mm. After the panel-applied films had been allowed to dry overnight (about 16 hours) , the resulting, crosslinked polymeric films were subjected to a particular solvent-resistance test (MEK rubs) .
- MEK rubs solvent-resistance test
- Example 15C Latex Containing Acetoacetoxy Monomer
- Example 15C describes the preparation of a certain latex which contains acetoacetoxy functional monomer, but not acid functional monomer. This comparative example is beyond the scope of my present invention.
- DOWFAX 2A1 brand liquid surfactant, technically referred to as a sodium dodecyl diphenyloxide disulfonate, has a hydrophile-lipophile balance value of 16.7, and is commercially available from Dow Chemical Company of Midland, Michigan, at a concentration of 45%.
- a monomer mixture consisting of 109.14 g. of methyl methacrylate monomer, 94.59 g. of butyl acrylate monomer, and 87.32 g. of acetoacetoxyethyl methacrylate was pumped into the reactor over a time period of 75 minutes.
- the agitated reactor contents were held at 80°C. for an additional 60 minutes and were thereafter cooled to room temperature.
- the thus-produced latex was found to be 35.78% NV, and was found to have a pH of 2.5, and a Brookfield viscosity (#2 spindle, at 25°C. and 60 RPM) of 19 mpas.
- the latex was neutralized to 8.5 pH with 30% ammonium hydroxide, and a stoichiometric amount of hexamethylene diamine was added while stirring.
- 2.22 g. of 10% HMDA in water was mixed with 27.82 g. of latex.
- the resulting formulation gelled in about one (1) hour.
- a novel aqueous polymeric composition of matter has been described hereinabove. Also described hereinabove are methods of making the novel polymeric composition of matter, as well as methods of utilizing the novel polymeric composition of matter, for purposes of producing desired crosslinked surface coatings and films on various substrates. While these various aspects of my present invention have been described hereinabove with respect to certain preferred embodiments and illustrative examples, it is to be understood that the scope of my present invention is not to be limited to such embodiments and examples.
Abstract
Description
Claims
Priority Applications (7)
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EP19930905826 EP0625999B1 (en) | 1992-02-10 | 1993-02-09 | Crosslinkable surface coatings |
KR1019940702765A KR100276375B1 (en) | 1992-02-10 | 1993-02-09 | Aqueous polymeric composition and preparation method thereof |
DE1993612908 DE69312908T2 (en) | 1992-02-10 | 1993-02-09 | NETWORKABLE SURFACE COATINGS |
AU36598/93A AU661126B2 (en) | 1992-02-10 | 1993-02-09 | Crosslinkable surface coatings |
KR1019940702765A KR950700358A (en) | 1992-02-10 | 1993-02-09 | Crosslinkable surface coatings |
JP5514247A JPH07503753A (en) | 1992-02-10 | 1993-02-09 | Crosslinkable surface paint |
CA 2129822 CA2129822C (en) | 1992-02-10 | 1993-02-09 | Crosslinkable surface coatings |
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US83325092A | 1992-02-10 | 1992-02-10 | |
US07/833,250 | 1992-02-10 |
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AT (1) | ATE156503T1 (en) |
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1993
- 1993-02-09 DK DK93905826T patent/DK0625999T3/en active
- 1993-02-09 KR KR1019940702765A patent/KR100276375B1/en active
- 1993-02-09 AT AT93905826T patent/ATE156503T1/en not_active IP Right Cessation
- 1993-02-09 EP EP19930905826 patent/EP0625999B1/en not_active Expired - Lifetime
- 1993-02-09 ES ES93905826T patent/ES2107658T3/en not_active Expired - Lifetime
- 1993-02-09 DE DE1993612908 patent/DE69312908T2/en not_active Expired - Lifetime
- 1993-02-09 WO PCT/US1993/001133 patent/WO1993016133A2/en active Application Filing
- 1993-02-09 CA CA 2216303 patent/CA2216303C/en not_active Expired - Lifetime
- 1993-02-09 CA CA 2129822 patent/CA2129822C/en not_active Expired - Lifetime
- 1993-02-09 KR KR1019940702765A patent/KR950700358A/en not_active IP Right Cessation
- 1993-02-09 AU AU36598/93A patent/AU661126B2/en not_active Expired
- 1993-02-09 JP JP5514247A patent/JPH07503753A/en active Pending
-
1994
- 1994-10-07 US US08/320,795 patent/US5498659A/en not_active Expired - Lifetime
-
1995
- 1995-06-06 US US08/468,163 patent/US5605952A/en not_active Expired - Lifetime
- 1995-06-06 US US08/470,778 patent/US5605722A/en not_active Expired - Lifetime
- 1995-06-06 US US08/485,912 patent/US5605953A/en not_active Expired - Lifetime
- 1995-06-06 US US08/470,809 patent/US5609965A/en not_active Expired - Lifetime
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1996
- 1996-08-28 US US08/704,823 patent/US5952407A/en not_active Expired - Fee Related
-
2000
- 2000-03-29 KR KR20007003366A patent/KR100282110B1/ko not_active IP Right Cessation
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Non-Patent Citations (1)
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Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0584916A2 (en) * | 1992-07-28 | 1994-03-02 | Rohm And Haas Company | Polymer for light-assisted curing of coatings and method for producing it |
EP0584916A3 (en) * | 1992-07-28 | 1994-06-15 | Rohm & Haas | Polymer for light-assisted curing of coatings and method for producing it |
US5562953A (en) * | 1992-07-28 | 1996-10-08 | Rohm And Haas Company | Method for light-assisted curing of coatings |
EP0593151B2 (en) † | 1992-10-13 | 2002-06-19 | Rohm And Haas Company | A method for extending the open time of an aqueous coating composition |
US5494961A (en) * | 1993-07-14 | 1996-02-27 | Rohm And Haas Company | Functionalization of polymers via enamine of acetoacetate |
US5525662A (en) * | 1993-07-14 | 1996-06-11 | Rohm And Haas Company | Functionalization of polymers via enamine of acetoacetate |
US5548024A (en) * | 1993-07-14 | 1996-08-20 | Rohm And Haas Company | Functionalization of polymers via enamine of acetoacetate |
US5494975A (en) * | 1993-07-14 | 1996-02-27 | Rohm And Haas Company | Functionalization of polymers via enamine of acetoacetate |
US5616764A (en) * | 1993-07-14 | 1997-04-01 | Rohm And Haas Company | Functionalization of polymers via enamine of acetoacetate |
US5534310A (en) * | 1994-08-17 | 1996-07-09 | Rohm And Haas Company | Method of improving adhesive of durable coatings on weathered substrates |
CN1116375C (en) * | 1994-08-17 | 2003-07-30 | 罗姆和哈斯公司 | Method of improving adhesion of durable coatings on weathered substrates and coatings made therefrom |
EP0697417A1 (en) * | 1994-08-17 | 1996-02-21 | Rohm And Haas Company | Method for improving adhesion of durable coatings to weathered substrates and coatings made therefrom |
US6087081A (en) * | 1994-12-09 | 2000-07-11 | Fuji Photo Film Co., Ltd. | Fine polymer particles having heterogeneous phase structure, silver halide photographic light-sensitive material containing the fine polymer particles and image-forming method |
US5804357A (en) * | 1994-12-09 | 1998-09-08 | Fuji Photo Film Co., Ltd. | Fine polymer particles having heterogeneous phase structure, silver photographic light sensitive material containing the fine polymer particles and image-forming method |
US6027805A (en) * | 1994-12-09 | 2000-02-22 | Fuji Photo Film Co., Ltd. | Fine polymer particles having heterogeneous phase structure |
US5519087A (en) * | 1995-04-28 | 1996-05-21 | Rohm And Haas Company | Binders for ceramic products |
US5889098A (en) * | 1995-08-24 | 1999-03-30 | S. C. Johnson Commercial Markets, Inc. | Latex formulations containing ethylenically-unsaturated 1,3 diketoamide functional polymers |
US5872297A (en) * | 1995-08-24 | 1999-02-16 | S. C. Johnson Commercial Markets, Inc. | Ethylenically-unsaturated 1,3-diketoamide functional compounds |
US5886116A (en) * | 1995-08-24 | 1999-03-23 | S.C. Johnson Commercial Markets, Inc. | Ethylenically--unsaturated 1,3--diketoamide functional polymers |
WO1997008134A1 (en) * | 1995-08-24 | 1997-03-06 | S.C. Johnson & Son, Inc. | Ethylenically-unsaturated 1,3-diketoamide functional compounds, polymers thereof and latex formulations containing the same |
EP0778317A2 (en) | 1995-12-04 | 1997-06-11 | Rohm And Haas Company | Waterborne crosslinkable compositions |
EP0778317A3 (en) * | 1995-12-04 | 1999-12-01 | Rohm And Haas Company | Waterborne crosslinkable compositions |
US5772988A (en) * | 1996-05-10 | 1998-06-30 | Revlon Consumer Products Corporation | Nail enamel compositions from acetoacetoxy methacrylate copolymer |
US6512042B1 (en) | 1996-12-18 | 2003-01-28 | Rohm And Haas Company | Waterborne crosslinkable coating compositions |
WO1998054256A1 (en) * | 1997-05-30 | 1998-12-03 | S. C. Johnson Commercial Markets, Inc. | Cross-linkable surface coatings and process of preparation |
AU733823B2 (en) * | 1997-05-30 | 2001-05-24 | Johnson Polymer, Llc | Cross-linkable surface coatings and process of preparation |
US6277358B1 (en) | 1997-12-15 | 2001-08-21 | Revlon Consumer Products Corporation | Cosmetic compositions containing crosslinkable polymers |
US9469780B2 (en) | 2003-06-12 | 2016-10-18 | Valspar Sourcing, Inc. | Coating compositions containing reactive diluents and methods |
US7605209B2 (en) | 2003-06-12 | 2009-10-20 | Valspar Sourcing, Inc. | Coating compositions containing reactive diluents and methods |
US7728068B2 (en) | 2003-06-12 | 2010-06-01 | Valspar Sourcing, Inc. | Coating compositions containing reactive diluents and methods |
US7923513B2 (en) | 2004-11-22 | 2011-04-12 | Valspar Sourcing, Inc. | Coating compositions and methods |
EP1833933B2 (en) † | 2004-12-17 | 2013-12-11 | Valspar Sourcing, Inc. | Aqueous coating compositions containing acetoacetyl-functional polymers, coatings, and methods |
US8609762B2 (en) | 2004-12-17 | 2013-12-17 | Valspar Sourcing, Inc. | Aqueous coating compositions containing acetoacetyl-functional polymers, coatings, and methods |
US9803045B2 (en) | 2004-12-17 | 2017-10-31 | Valspar Sourcing, Inc. | Aqueous coating compositions containing acetoacetyl-functional polymers, coatings, and methods |
US7999015B2 (en) | 2006-02-24 | 2011-08-16 | Kansai Paint Co., Ltd. | Curable aqueous composition |
GB2445748A (en) * | 2007-01-18 | 2008-07-23 | Arjobex Ltd | Coating composition |
WO2017157934A1 (en) | 2016-03-18 | 2017-09-21 | Basf Se | Finely divided aqueous multistage polymerizate dispersion, method for the production thereof, and use thereof as a binder |
US10913811B2 (en) | 2016-03-18 | 2021-02-09 | Basf Se | Finely divided aqueous multistage polymer dispersion, method for the production thereof, and use thereof as a binder |
Also Published As
Publication number | Publication date |
---|---|
CA2129822C (en) | 2000-10-17 |
EP0625999A4 (en) | 1995-01-04 |
KR100276375B1 (en) | 2001-03-02 |
AU661126B2 (en) | 1995-07-13 |
ATE156503T1 (en) | 1997-08-15 |
US5605722A (en) | 1997-02-25 |
DE69312908T2 (en) | 1997-11-20 |
US5952407A (en) | 1999-09-14 |
EP0625999B1 (en) | 1997-08-06 |
DE69312908D1 (en) | 1997-09-11 |
ES2107658T3 (en) | 1997-12-01 |
CA2216303A1 (en) | 1993-08-19 |
US5605953A (en) | 1997-02-25 |
EP0625999A1 (en) | 1994-11-30 |
US5605952A (en) | 1997-02-25 |
AU3659893A (en) | 1993-09-03 |
KR100282110B1 (en) | 2001-02-15 |
DK0625999T3 (en) | 1998-03-23 |
CA2129822A1 (en) | 1993-08-19 |
US5609965A (en) | 1997-03-11 |
CA2216303C (en) | 2001-07-24 |
US5498659A (en) | 1996-03-12 |
JPH07503753A (en) | 1995-04-20 |
KR950700358A (en) | 1995-01-16 |
US5391624A (en) | 1995-02-21 |
WO1993016133A3 (en) | 1993-09-30 |
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