WO1997021335A3 - Method of improving the photostability of polypropylene compositions - Google Patents

Method of improving the photostability of polypropylene compositions Download PDF

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Publication number
WO1997021335A3
WO1997021335A3 PCT/US1996/017684 US9617684W WO9721335A3 WO 1997021335 A3 WO1997021335 A3 WO 1997021335A3 US 9617684 W US9617684 W US 9617684W WO 9721335 A3 WO9721335 A3 WO 9721335A3
Authority
WO
WIPO (PCT)
Prior art keywords
minutes
flow rate
melt flow
polypropylene
polypropylene composition
Prior art date
Application number
PCT/US1996/017684
Other languages
French (fr)
Other versions
WO1997021335A2 (en
Inventor
Robert Leslie Hudson
Mary Lucille Delucia
Original Assignee
Kimberly Clark Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kimberly Clark Co filed Critical Kimberly Clark Co
Priority to AU76063/96A priority Critical patent/AU7606396A/en
Priority to CA002236301A priority patent/CA2236301C/en
Publication of WO1997021335A2 publication Critical patent/WO1997021335A2/en
Publication of WO1997021335A3 publication Critical patent/WO1997021335A3/en

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Classifications

    • 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
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/005—Stabilisers against oxidation, heat, light, ozone
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/106—Radiation shielding agents, e.g. absorbing, reflecting agents
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
    • C08L2023/40—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds changing molecular weight
    • C08L2023/42—Depolymerisation, vis-breaking or degradation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/29—Mixed resin filaments

Abstract

A method of improving the effectiveness of a photostabilizer in reducing the deleterious effects of actinic radiation on a polypropylene composition, which method involves compounding a melt-extrudable thermoplastic polypropylene composition having a melt flow rate in a range of from about 18 to about 100 g/10 minutes at a temperature of 230 °C and a load of 2.16 kg. The polypropylene composition includes a first thermoplastic polypropylene having a melt flow rate lower than 18 g/10 minutes at a temperature of 230 °C and a load of 2.16 kg, a polydispersity greater than about 2.6, and a Z-average molecular weight greater than about 300,000; a second thermoplastic polypropylene having a melt flow rate higher than 18 g/10 minutes at a temperature of 230 °C and a load of 2.16 kg, a polydispersity equal to or less than 2.6, and a Z-average molecular weight equal to or less than 300,000 as determined by gel permeation chromatography; and a photostabilizer. The weight ratio of the first polypropylene to the second polypropylene is in a range of from about 95:5 to about 10:90. Alternatively, such improvement may be accomplished by thermally cracking a thermoplastic polypropylene composition which includes a thermoplastic polypropylene having a melt flow rate lower than about 18 g/10 minutes, a photostabilizer, and a cracking catalyst. Cracking is carried out under conditions sufficient to give a melt-extrudable thermoplastic polypropylene composition having a melt flow rate in a range of from about 30 to about 90 g/10 minutes, a polydispersity greater than 2.6, and a Z-average molecular weight greater than 300,000 as determined by gel permeation chromatography.
PCT/US1996/017684 1995-11-27 1996-11-06 Method of improving the photostability of polypropylene compositions WO1997021335A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU76063/96A AU7606396A (en) 1995-11-27 1996-11-06 Method of improving the photostability of polypropylene compositions
CA002236301A CA2236301C (en) 1995-11-27 1996-11-06 Method of improving the photostability of polypropylene compositions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/562,722 1995-11-27
US08/562,722 US5738745A (en) 1995-11-27 1995-11-27 Method of improving the photostability of polypropylene compositions

Publications (2)

Publication Number Publication Date
WO1997021335A2 WO1997021335A2 (en) 1997-06-19
WO1997021335A3 true WO1997021335A3 (en) 1997-07-17

Family

ID=24247497

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/017684 WO1997021335A2 (en) 1995-11-27 1996-11-06 Method of improving the photostability of polypropylene compositions

Country Status (6)

Country Link
US (1) US5738745A (en)
AU (1) AU7606396A (en)
CA (1) CA2236301C (en)
MX (1) MX9803754A (en)
TW (1) TW458988B (en)
WO (1) WO1997021335A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6132839A (en) * 1998-12-04 2000-10-17 Basf Corporation Alloy fibers with reduced heatset shrinkage
WO2001083107A2 (en) 2000-04-28 2001-11-08 Synuthane International, Inc. Double metal cyanide catalysts containing polyglycol ether complexing agents
MXPA06008385A (en) * 2004-01-27 2006-08-25 Procter & Gamble Soft extensible nonwoven webs containing multicomponent fibers with high melt flow rates.
CN1997786A (en) * 2004-04-16 2007-07-11 优质无纺布公司 Plastically deformable nonwoven web
CN2878390Y (en) * 2006-04-07 2007-03-14 王新明 Multi-functional full automatic remote constant temperature heat supply cracking device for waste and old tyre
US20110179558A1 (en) * 2009-07-29 2011-07-28 International Enviroguard Systems, Inc. Breathable Protective Fabric and Garment
WO2016053468A1 (en) * 2014-09-30 2016-04-07 Exxonmobil Chemical Patents Inc. Bimodal polypropylenes and method of making same
CN112877808A (en) * 2021-02-01 2021-06-01 常州工程职业技术学院 Explosion suppression and antistatic porous material and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296022A (en) * 1980-06-04 1981-10-20 Chevron Research Polypropylene blend compositions
EP0303895A1 (en) * 1987-08-18 1989-02-22 American Cyanamid Company Radiation sterilizable composition and articles made therefrom
EP0552013A2 (en) * 1992-01-13 1993-07-21 Hercules Incorporated Thermally bondable fiber for high strength non-woven fabrics
EP0632062A1 (en) * 1993-06-07 1995-01-04 PCD-Polymere Gesellschaft m.b.H. New polypropylenes prepared by chemical degrading

Family Cites Families (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016599A (en) * 1954-06-01 1962-01-16 Du Pont Microfiber and staple fiber batt
US3271340A (en) * 1960-12-30 1966-09-06 Eastman Kodak Co Olefin polymers modified with polypropylene wax
BE624460A (en) * 1961-11-24 1900-01-01
US3213881A (en) * 1963-07-17 1965-10-26 Int Harvester Co Directional control valve
US3551943A (en) * 1966-12-19 1971-01-05 Exxon Research Engineering Co Controlled degradation
US3341394A (en) * 1966-12-21 1967-09-12 Du Pont Sheets of randomly distributed continuous filaments
US3542615A (en) * 1967-06-16 1970-11-24 Monsanto Co Process for producing a nylon non-woven fabric
DE1785158C3 (en) * 1968-08-17 1979-05-17 Metallgesellschaft Ag, 6000 Frankfurt Round nozzle for pulling off and depositing threads to form a thread fleece
US3607616A (en) * 1968-11-22 1971-09-21 Eastman Kodak Co Laminated amorphous and crystalline polypropylene sheeting
US3849241A (en) * 1968-12-23 1974-11-19 Exxon Research Engineering Co Non-woven mats by melt blowing
US3608001A (en) * 1969-08-26 1971-09-21 Exxon Research Engineering Co Controlled degradation of polypropylene in extruder-reactor
DE2048006B2 (en) * 1969-10-01 1980-10-30 Asahi Kasei Kogyo K.K., Osaka (Japan) Method and device for producing a wide nonwoven web
DE1950669C3 (en) * 1969-10-08 1982-05-13 Metallgesellschaft Ag, 6000 Frankfurt Process for the manufacture of nonwovens
US3704198A (en) * 1969-10-09 1972-11-28 Exxon Research Engineering Co Nonwoven polypropylene mats of increased strip tensile strength
US3755527A (en) * 1969-10-09 1973-08-28 Exxon Research Engineering Co Process for producing melt blown nonwoven synthetic polymer mat having high tear resistance
US3650866A (en) * 1969-10-09 1972-03-21 Exxon Research Engineering Co Increasing strip tensile strength of melt blown nonwoven polypropylene mats of high tear resistance
US3689597A (en) * 1970-06-26 1972-09-05 Hercules Inc Polyphase compositions and process for their preparation
BE793649A (en) * 1972-01-04 1973-07-03 Rhone Poulenc Textile DEVICE FOR THE MANUFACTURE OF NONWOVEN CONTINUOUS FILAMENT TABLECLOTH
US4189338A (en) * 1972-11-25 1980-02-19 Chisso Corporation Method of forming autogenously bonded non-woven fabric comprising bi-component fibers
US3865897A (en) * 1973-08-03 1975-02-11 Dow Corning Method of blending polyolefins and polydiorganosiloxane gums and blends thereof
US3898209A (en) * 1973-11-21 1975-08-05 Exxon Research Engineering Co Process for controlling rheology of C{HD 3{B {30 {0 polyolefins
US4100324A (en) * 1974-03-26 1978-07-11 Kimberly-Clark Corporation Nonwoven fabric and method of producing same
US4064605A (en) * 1975-08-28 1977-12-27 Toyobo Co., Ltd. Method for producing non-woven webs
CA1073648A (en) * 1976-08-02 1980-03-18 Edward R. Hauser Web of blended microfibers and crimped bulking fibers
US4593079A (en) * 1977-05-25 1986-06-03 National Distillers And Chemical Corporation Resin rheology control process and catalyst therefor
GB1604415A (en) * 1977-07-27 1981-12-09 Raychem Ltd Polymeric blends
US4368305A (en) * 1979-01-18 1983-01-11 Mitsubishi Chemical Industries, Ltd. Process for producing olefin polymers
DE2905357A1 (en) * 1979-02-13 1980-08-21 Bayer Ag MIXTURES OF POLYPROPYLENE AND LIQUID, SATURATED DIORGANOPOLYSILOXANES
US4366298A (en) * 1979-07-05 1982-12-28 Wacker-Chemie Gmbh Process and heavy metal catalyst for the polymerization of α-olefins, particularly polyethylene
US4274932A (en) * 1979-09-10 1981-06-23 Becton Dickinson And Company Semi-crystalline polymers stabilized for irradiation sterilization
US4282076A (en) * 1979-09-17 1981-08-04 Hercules Incorporated Method of visbreaking polypropylene
US4340563A (en) * 1980-05-05 1982-07-20 Kimberly-Clark Corporation Method for forming nonwoven webs
DE3025760A1 (en) * 1980-07-08 1982-02-04 Wacker-Chemie GmbH, 8000 München METHOD FOR THE POLYMERSATION OF (ALPHA) -OLEFINES
DE3030055A1 (en) * 1980-08-08 1982-03-25 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING ETHYLENE HOMOPOLYMERISATS AND ETHYLEN-COPOLYMERISATEN WITH (ALPHA) -MONOOLEFINEN
US4310648A (en) * 1980-10-20 1982-01-12 The Dow Chemical Company Polymerization of olefins in the presence of a catalyst containing titanium and zirconium
EP0078603A1 (en) * 1981-10-12 1983-05-11 Imperial Chemical Industries Plc Polyolefin compositions and articles sterilisable by irradiation
DE3151294C2 (en) * 1981-12-24 1986-01-23 Fa. Carl Freudenberg, 6940 Weinheim Spunbonded polypropylene fabric with a low coefficient of fall
US4375531A (en) * 1982-01-11 1983-03-01 Northern Petrochemical Company High impact visbroken polymeric blends
US4547551A (en) * 1982-06-22 1985-10-15 Phillips Petroleum Company Ethylene polymer blends and process for forming film
US4699961A (en) * 1982-09-30 1987-10-13 E. I. Du Pont De Nemours & Co. High efficiency catalysts for varying olefin polymer molecular weight distribution
US4472556A (en) * 1982-12-20 1984-09-18 Dow Corning Corporation Method for enhancing one or more mechanical properties of partially crystalline thermoplastics
US4446090A (en) * 1983-10-03 1984-05-01 General Electric Company High viscosity silicone blending process
US4487858A (en) * 1983-10-07 1984-12-11 General Electric Company Blending temperature sensitive components into a silicone modified thermoplastic
US4535125A (en) * 1983-10-13 1985-08-13 Shell Oil Company High flow propylene polymer compositions
US4535113A (en) * 1984-03-13 1985-08-13 Union Carbide Corporation Olefin polymer compositions containing silicone additives and the use thereof in the production of film material
US4514534A (en) * 1984-04-13 1985-04-30 United States Steel Corporation Modified polypropylene for film
US4578430A (en) * 1984-12-19 1986-03-25 Shell Oil Company Controlled degradation or cracking of alpha-olefin polymers
US4663220A (en) * 1985-07-30 1987-05-05 Kimberly-Clark Corporation Polyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers
US4632861A (en) * 1985-10-22 1986-12-30 E. I. Du Pont De Nemours And Company Blend of polyethylene and polypropylene
US4843129A (en) * 1985-12-27 1989-06-27 Exxon Research & Engineering Company Elastomer-plastic blends
JPH0712367B2 (en) * 1986-05-22 1995-02-15 花王株式会社 Absorbent article
US4741944A (en) * 1986-07-30 1988-05-03 Kimberly-Clark Corporation Wet wipe and wipe dispensing arrangement
US4888369A (en) * 1987-01-21 1989-12-19 Himont Incorporated Polypropylene composition resistant to high energy radiation, and radiation sterilized articles therefrom
US4766029A (en) * 1987-01-23 1988-08-23 Kimberly-Clark Corporation Semi-permeable nonwoven laminate
US4970280A (en) * 1987-04-01 1990-11-13 Chisso Corporation Continuous process for producing high molten viscoelastic polypropylene or ethylene-propylene copolymer
US5093415A (en) * 1987-05-19 1992-03-03 Union Carbide Chemicals & Plastics Technology Corporation Process for producing stereoregular polymers having a narrow molecular weight distribution
JPS63302027A (en) * 1987-06-03 1988-12-08 Daiyatetsukusu Kk Net-shaped sheet
US5258129A (en) * 1987-12-02 1993-11-02 Takemoto Yushi Kabushiki Kaisha Fluid-permeable agent for non-woven sheets of polyolefin fibers and method of application thereof
US4888704A (en) * 1987-12-18 1989-12-19 Amoco Corporation Advanced control strategies for melt flow rate and reactor concentration in the polypropylene slurry process
US5116915A (en) * 1987-12-28 1992-05-26 Giprokautchuk Method of controlling polymerization process of olefinic hydrocarbons
IT1216719B (en) * 1988-01-28 1990-03-08 Milano THERMODEGRADABLE COMPOSITIONS ABASE OF OMO OR CRYSTALLINE COPOLYMERS OF PROPYLENE AND PROCEDURE TO PERFORM THE SELECTIVE DEGRADATION OF SUCH OMO AND COPOLYMERS.
US4931492A (en) * 1988-03-31 1990-06-05 Union Carbide Chemicals And Plastics Company Inc. Olefin polymer compositions containing polyorganosiloxanes and the use thereof in the production of film material and polyorganosiloxanes
US4857251A (en) * 1988-04-14 1989-08-15 Kimberly-Clark Corporation Method of forming a nonwoven web from a surface-segregatable thermoplastic composition
US4920168A (en) * 1988-04-14 1990-04-24 Kimberly-Clark Corporation Stabilized siloxane-containing melt-extrudable thermoplastic compositions
US5120888A (en) * 1988-04-14 1992-06-09 Kimberly-Clark Corporation Surface-segregatable, melt-extrudable thermoplastic composition
US4923914A (en) * 1988-04-14 1990-05-08 Kimberly-Clark Corporation Surface-segregatable, melt-extrudable thermoplastic composition
US5082720A (en) * 1988-05-06 1992-01-21 Minnesota Mining And Manufacturing Company Melt-bondable fibers for use in nonwoven web
US5382631A (en) * 1988-09-30 1995-01-17 Exxon Chemical Patents Inc. Linear ethylene interpolymer blends of interpolymers having narrow molecular weight and composition distributions
JP2577977B2 (en) * 1988-10-28 1997-02-05 チッソ株式会社 Stretchable nonwoven fabric and method for producing the same
US4960810A (en) * 1989-03-30 1990-10-02 Union Carbide Chemicals And Plastics Company Inc. Polymer compositions stabilized with polydialkylsiloxanes containing siloxy units having certain defined pendant sterically hindered phenol moieties
US5108827A (en) * 1989-04-28 1992-04-28 Fiberweb North America, Inc. Strong nonwoven fabrics from engineered multiconstituent fibers
US4963622A (en) * 1989-06-28 1990-10-16 Union Carbide Chemicals And Plastics Company Inc. Paraloid extrusion aids for high molecular weight HDPE film resins
US5114646A (en) * 1989-09-18 1992-05-19 Kimberly-Clark Corporation Method of increasing the delay period of nonwoven webs having delayed wettability
US5173356A (en) * 1989-09-25 1992-12-22 Amoco Corporation Self-bonded fibrous nonwoven webs
FI112252B (en) * 1990-02-05 2003-11-14 Fibervisions L P High temperature resistant fiber bindings
US5017661A (en) * 1990-02-12 1991-05-21 Phillips Petroleum Company Process for reducing the level of t-butyl alcohol (TBA) in visbroken polyolefins
GB9007236D0 (en) * 1990-03-30 1990-05-30 Leo Pharm Prod Ltd Chemical compounds
US5213881A (en) * 1990-06-18 1993-05-25 Kimberly-Clark Corporation Nonwoven web with improved barrier properties
GB9017203D0 (en) * 1990-08-06 1990-09-19 Shell Int Research Polyolefin/filler composite materials and their preparation and use
US5218052A (en) * 1991-02-04 1993-06-08 Amoco Corporation Olefin polymerization and copolymerization process
US5395471A (en) * 1991-10-15 1995-03-07 The Dow Chemical Company High drawdown extrusion process with greater resistance to draw resonance
US5344862A (en) * 1991-10-25 1994-09-06 Kimberly-Clark Corporation Thermoplastic compositions and nonwoven webs prepared therefrom
US5359015A (en) * 1991-11-07 1994-10-25 Exxon Chemical Patents Inc. Metallocene catalysts and their production and use
US5281679A (en) * 1991-11-07 1994-01-25 Exxon Chemical Patents Inc. Catalyst and method of broadening polymer molecular weight distribution and increasing polymer tensile impact strength and products made thereof
US5244724A (en) * 1992-05-08 1993-09-14 Amoco Corporation Self-bonded fibrous nonwoven webs having improved softness
US5376430A (en) * 1992-06-19 1994-12-27 Minnesota Mining And Manufacturing Company Elastic film laminate
US5405917A (en) * 1992-07-15 1995-04-11 Phillips Petroleum Company Selective admixture of additives for modifying a polymer
CA2090793A1 (en) * 1992-10-09 1994-04-10 Ronald Sinclair Nohr Nonwoven webs having improved tensile strength characteristics
US5368919A (en) * 1993-05-20 1994-11-29 Himont Incorporated Propylene polymer compositions containing high melt strength propylene polymer material
US5414027A (en) * 1993-07-15 1995-05-09 Himont Incorporated High melt strength, propylene polymer, process for making it, and use thereof
US5409992A (en) * 1994-02-28 1995-04-25 Himont Incorporated Calenderable blends containing broad molecular weight distribution propylene polymer material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4296022A (en) * 1980-06-04 1981-10-20 Chevron Research Polypropylene blend compositions
EP0303895A1 (en) * 1987-08-18 1989-02-22 American Cyanamid Company Radiation sterilizable composition and articles made therefrom
EP0552013A2 (en) * 1992-01-13 1993-07-21 Hercules Incorporated Thermally bondable fiber for high strength non-woven fabrics
EP0632062A1 (en) * 1993-06-07 1995-01-04 PCD-Polymere Gesellschaft m.b.H. New polypropylenes prepared by chemical degrading

Also Published As

Publication number Publication date
CA2236301C (en) 2007-01-16
US5738745A (en) 1998-04-14
WO1997021335A2 (en) 1997-06-19
MX9803754A (en) 1998-09-30
AU7606396A (en) 1997-07-03
TW458988B (en) 2001-10-11
CA2236301A1 (en) 1997-06-19

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