GB1198880A - Process for the Production of Foams from Olefin-Vinyl Ester Copolymers - Google Patents

Process for the Production of Foams from Olefin-Vinyl Ester Copolymers

Info

Publication number
GB1198880A
GB1198880A GB5461468A GB5461468A GB1198880A GB 1198880 A GB1198880 A GB 1198880A GB 5461468 A GB5461468 A GB 5461468A GB 5461468 A GB5461468 A GB 5461468A GB 1198880 A GB1198880 A GB 1198880A
Authority
GB
United Kingdom
Prior art keywords
copolymer
cross
foaming
olefin
heating
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5461468A
Inventor
Hubert Schade
Peter Pabst
Gerhard Schilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
Original Assignee
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
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 Leuna Werke GmbH, Leuna Werke Walter Ulbright Germany VEB filed Critical Leuna Werke GmbH
Priority to GB5461468A priority Critical patent/GB1198880A/en
Publication of GB1198880A publication Critical patent/GB1198880A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/02—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (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)

Abstract

1,198,880. Foaming cross-linked olefin-vinyl acetate copolymers. LEUNA-WERKE " WALTER ULBRICHT " VEB. 18 Nov., 1968, No. 54614/68. Headings C3C and C3P. Foams of olefin-vinyl ester copolymers are prepared by mixing the copolymer with a crosslinking agent of formula Me(OR) x , wherein Me is a metal of valency x, x is 1-5 and R is an aliphatic or cycloaliphatic radical, cross-linking the copolymer by heating at 60-300‹ C. and subsequently or simultaneously foaming the copolymer by the use of substances gaseous under the reaction temperature conditions. The foaming agents may be esters formed by the reaction of the copolymer and cross-linking agents. Conventional foaming agents such as azodicarbonic acid or diphenyl-sulphon 3,3<SP>1</SP>-disulphohydrazide may also be present. In the examples, an ethylene-vinyl acetate copolymer is cross-linked and foamed by heating with (1) azodicarbonic acid amide and either aluminum tri-isopropylate or titanium propylate-this may be preceded by heating with dicumyl peroxide; (2) di-phenyl-sulphon-3,3<SP>1</SP>-di-sulphohydrazide and a methanolic solution of sodium methylate; (3) as (1) wherein the copolymer is initially mixed with polyethylene. The copolymer, which may contain an antioxidant, may have incorporated therein inorganic fillers such as lithopone, titania, calcium carbonate and glass fibres. The cross-linked copolymers may be coated on to metal plates and then subjected to foaming.
GB5461468A 1968-11-18 1968-11-18 Process for the Production of Foams from Olefin-Vinyl Ester Copolymers Expired GB1198880A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5461468A GB1198880A (en) 1968-11-18 1968-11-18 Process for the Production of Foams from Olefin-Vinyl Ester Copolymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5461468A GB1198880A (en) 1968-11-18 1968-11-18 Process for the Production of Foams from Olefin-Vinyl Ester Copolymers

Publications (1)

Publication Number Publication Date
GB1198880A true GB1198880A (en) 1970-07-15

Family

ID=10471575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5461468A Expired GB1198880A (en) 1968-11-18 1968-11-18 Process for the Production of Foams from Olefin-Vinyl Ester Copolymers

Country Status (1)

Country Link
GB (1) GB1198880A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012567A (en) * 1975-03-12 1977-03-15 Uniroyal Inc. Titanate ester cure of unsaturated elastomers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012567A (en) * 1975-03-12 1977-03-15 Uniroyal Inc. Titanate ester cure of unsaturated elastomers

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees