GB1220611A - Foamable polymer composition and process for preparing the same - Google Patents

Foamable polymer composition and process for preparing the same

Info

Publication number
GB1220611A
GB1220611A GB1603568A GB1603568A GB1220611A GB 1220611 A GB1220611 A GB 1220611A GB 1603568 A GB1603568 A GB 1603568A GB 1603568 A GB1603568 A GB 1603568A GB 1220611 A GB1220611 A GB 1220611A
Authority
GB
United Kingdom
Prior art keywords
elastomer
weight
styrene
foaming agent
alkyl
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
GB1603568A
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of GB1220611A publication Critical patent/GB1220611A/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
    • C08J9/16—Making expandable particles
    • 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
    • C08F279/00—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00
    • C08F279/02—Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group C08F36/00 on to polymers of conjugated dienes
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
    • C08J2325/02—Homopolymers or copolymers of hydrocarbons
    • C08J2325/04—Homopolymers or copolymers of styrene
    • C08J2325/08—Copolymers of styrene
    • C08J2325/12—Copolymers of styrene with unsaturated nitriles
    • 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
    • C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

1,220,611. Foamable polymeric beads. TORAY INDUSTRIES Inc. 3 April, 1968 [5 April, 1967; 16 May, 1967], No. 16035/68. Headings C3C and C3P. A foamable polymer composition in the form of beads comprises (A) 99.5 to 70% by weight of a copolymer of (a) a vinyl-substituted benzene derivative of formula where R and R<SP>1</SP> each represent a hydrogen atom or an alkyl group of 1 to 3 carbon atoms or a mixture thereof with an alkyl ester of methacrylic or acrylic acid, the alkyl radical having from 1 to 4 carbon atoms, and (b) acrylonitrile or an α-alkyl derivative thereof, the ratio of the ingredients (a) to (b) being 60: 40 to 90: 10 by weight; (B) 0.5 to 30% by weight of an elastomer containing no more than 5% by weight of gel, which is polybutadiene or a styrene-butadiene copolymer containing no more than 25% by weight of styrene units; and (C) as foaming agent, a liquid organic compound of boiling point below 80‹ C. capable of swelling or at least partially dissolving the elastomer component, absorbed by the elastomer component, wherein substantially all the polymer component (A) is uniformly dispersed as fine particles in a continuous phase of the elastomer component (B). The composition may be made by polymerizing a solution of the elastomer and monomers in the presence of a free-radical initiator containing an azo group e.g. 2,2<SP>1</SP>- azobis - isobutyronitrile in bulk and/or aqueous suspension and the foaming agent is added, before, during or after the polymerization. The elastomer may be polybutadiene or a styrene-butadiene elastomer and the copolymer may be of styrene and acrylonitrile with optionally methyl or ethyl methacrylate or acrylate or methacrylonitrile. The foaming agent may be n-pentane, isopentane or petroleum ether. The beads may be foamed by treatment with steam.
GB1603568A 1967-04-05 1968-04-03 Foamable polymer composition and process for preparing the same Expired GB1220611A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2137767 1967-04-05
JP3059467 1967-05-16

Publications (1)

Publication Number Publication Date
GB1220611A true GB1220611A (en) 1971-01-27

Family

ID=26358425

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1603568A Expired GB1220611A (en) 1967-04-05 1968-04-03 Foamable polymer composition and process for preparing the same

Country Status (2)

Country Link
DE (1) DE1769104A1 (en)
GB (1) GB1220611A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425973A2 (en) * 1989-11-03 1991-05-08 BASF Aktiengesellschaft Expandable styrene polymerisate and aromatic-proof foam prepared therefrom
US5206271A (en) * 1989-11-03 1993-04-27 Basf Aktiengesellschaft Expandable styrene polymers, and aromatic-resistant foams produced therefrom
US5496864A (en) * 1994-05-13 1996-03-05 Basf Aktiengesellschaft Expandable styrene polymers
US5525637A (en) * 1994-05-13 1996-06-11 Basf Aktiengesellschaft Expandable styrene polymers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425973A2 (en) * 1989-11-03 1991-05-08 BASF Aktiengesellschaft Expandable styrene polymerisate and aromatic-proof foam prepared therefrom
EP0425973A3 (en) * 1989-11-03 1992-03-18 Basf Aktiengesellschaft Expandable styrene polymerisate and aromatic-proof foam prepared therefrom
US5166221A (en) * 1989-11-03 1992-11-24 Basf Aktiengesellschaft Expandable styrene polymers, and aromatic-resistant foams produced therefrom
US5206271A (en) * 1989-11-03 1993-04-27 Basf Aktiengesellschaft Expandable styrene polymers, and aromatic-resistant foams produced therefrom
US5496864A (en) * 1994-05-13 1996-03-05 Basf Aktiengesellschaft Expandable styrene polymers
US5525637A (en) * 1994-05-13 1996-06-11 Basf Aktiengesellschaft Expandable styrene polymers

Also Published As

Publication number Publication date
DE1769104A1 (en) 1971-07-29

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