WO1994001473A3 - Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids - Google Patents

Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids Download PDF

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Publication number
WO1994001473A3
WO1994001473A3 PCT/US1993/005998 US9305998W WO9401473A3 WO 1994001473 A3 WO1994001473 A3 WO 1994001473A3 US 9305998 W US9305998 W US 9305998W WO 9401473 A3 WO9401473 A3 WO 9401473A3
Authority
WO
WIPO (PCT)
Prior art keywords
copolymers
viscosity
ethylene
unsaturated carboxylic
carboxylic acids
Prior art date
Application number
PCT/US1993/005998
Other languages
French (fr)
Other versions
WO1994001473A2 (en
Inventor
Jerald Rice Harrell
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Priority to EP93916701A priority Critical patent/EP0649438B1/en
Priority to DE69304916T priority patent/DE69304916T2/en
Publication of WO1994001473A2 publication Critical patent/WO1994001473A2/en
Publication of WO1994001473A3 publication Critical patent/WO1994001473A3/en

Links

Classifications

    • 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
    • C08F8/06—Oxidation
    • 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
    • C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/14—Methyl esters, e.g. methyl (meth)acrylate
    • 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
    • C08F2810/10—Chemical modification of a polymer including a reactive processing step which leads, inter alia, to morphological and/or rheological modifications, e.g. visbreaking

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The viscosity of copolymers of (a) ethylene, (b) C1-C8 acrylates, C1-C8 methacrylates, or vinyl esters of C1-C8 carboxylic acids, and (c) at least one alpha, beta-unsaturated carboxylic acid of 3-12 carbon atoms selected from the group consisting of monocarboxylic acids, dicarboxylic acids, and monoesters of dicarboxylic acids is increased, while maintaining gel content at a level of less than 3 %, by treatment with a mixture of an organic peroxide and a chromium (III) salt.
PCT/US1993/005998 1992-07-10 1993-06-28 Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids WO1994001473A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP93916701A EP0649438B1 (en) 1992-07-10 1993-06-28 Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids
DE69304916T DE69304916T2 (en) 1992-07-10 1993-06-28 METHOD FOR CHANGING THE VISCOSITY OF COPOLYMERS FROM ETHYLENE AND UNSATURATED CARBONIC ACIDS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/912,963 US5214108A (en) 1992-07-10 1992-07-10 Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids
US07/912,963 1992-07-10

Publications (2)

Publication Number Publication Date
WO1994001473A2 WO1994001473A2 (en) 1994-01-20
WO1994001473A3 true WO1994001473A3 (en) 1994-03-03

Family

ID=25432766

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/005998 WO1994001473A2 (en) 1992-07-10 1993-06-28 Process for modifying the viscosity of copolymers of ethylene and unsaturated carboxylic acids

Country Status (6)

Country Link
US (1) US5214108A (en)
EP (1) EP0649438B1 (en)
JP (1) JP3192656B2 (en)
CA (1) CA2138762A1 (en)
DE (1) DE69304916T2 (en)
WO (1) WO1994001473A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212419C2 (en) * 1992-04-14 1994-03-24 Peter Eska Containers for regenerating and storing tennis balls under gas pressure
WO1994024171A1 (en) * 1993-04-15 1994-10-27 Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha Process for producing oxidized polymer solution and process for producing laminate therefrom
US5492971A (en) * 1994-05-19 1996-02-20 E. I. Du Pont De Nemours And Company Curable ethylene copolymer blend composition
EP0699707B1 (en) * 1994-08-30 2003-05-14 Sartomer Company, Inc. Curable elastomer compositions with improved mold release
US5679748A (en) * 1996-04-05 1997-10-21 Exxon Chemical Patents Inc. Process for oxidative functionalization of polymers containing alkylstyrene
AU2001268278A1 (en) * 2000-06-12 2001-12-24 Uniroyal Chemical Company, Inc. Ethylene/(meth)acrylate copolymers having aromatic amines grafted thereto
US20100126558A1 (en) * 2008-11-24 2010-05-27 E. I. Du Pont De Nemours And Company Solar cell modules comprising an encapsulant sheet of an ethylene copolymer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1425695A (en) * 1964-02-21 1966-01-24 Allied Chem Process for obtaining crystalline polymers of low molecular weight by thermal degradation of polyolefins
EP0004442A1 (en) * 1978-03-16 1979-10-03 E.I. Du Pont De Nemours And Company Improved elastomeric ethylene/carboxylic acid copolymer, a process for its preparation; vulcanizable compositions containing the copolymer and vulcanized articles prepared therefrom
EP0273274A2 (en) * 1986-12-11 1988-07-06 Elf Atochem Deutschland GmbH Degradation of polyethylene by means of agents generating free radicals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267083A (en) * 1963-06-07 1966-08-16 Union Carbide Corp Reprocessable crosslinked polymeric compositions
US4987199A (en) * 1987-09-24 1991-01-22 Sumitomo Chemical Company, Limited Ethylene-acrylic acid ester copolymer and process for producing the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1425695A (en) * 1964-02-21 1966-01-24 Allied Chem Process for obtaining crystalline polymers of low molecular weight by thermal degradation of polyolefins
EP0004442A1 (en) * 1978-03-16 1979-10-03 E.I. Du Pont De Nemours And Company Improved elastomeric ethylene/carboxylic acid copolymer, a process for its preparation; vulcanizable compositions containing the copolymer and vulcanized articles prepared therefrom
EP0273274A2 (en) * 1986-12-11 1988-07-06 Elf Atochem Deutschland GmbH Degradation of polyethylene by means of agents generating free radicals

Also Published As

Publication number Publication date
US5214108A (en) 1993-05-25
WO1994001473A2 (en) 1994-01-20
CA2138762A1 (en) 1994-01-20
EP0649438A1 (en) 1995-04-26
JP3192656B2 (en) 2001-07-30
DE69304916T2 (en) 1997-02-27
EP0649438B1 (en) 1996-09-18
JPH07509015A (en) 1995-10-05
DE69304916D1 (en) 1996-10-24

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