GB1219803A - Cellular foamed products prepared from polymers of vinyl chloride and process for their preparation - Google Patents

Cellular foamed products prepared from polymers of vinyl chloride and process for their preparation

Info

Publication number
GB1219803A
GB1219803A GB2665168A GB2665168A GB1219803A GB 1219803 A GB1219803 A GB 1219803A GB 2665168 A GB2665168 A GB 2665168A GB 2665168 A GB2665168 A GB 2665168A GB 1219803 A GB1219803 A GB 1219803A
Authority
GB
United Kingdom
Prior art keywords
vinyl chloride
polymer
cross
foam
copolymer
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
GB2665168A
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 GB1219803A publication Critical patent/GB1219803A/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
    • C08J9/0061—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
    • C08J2357/00—Characterised by the use of unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds

Abstract

1,219,803. Cellular vinyl chloride polymers. TORAY INDUSTRIES Inc. 4 June, 1968 [3 June, 1967; 22 Aug., 1967], No. 26651/68. Headings C3C and C3P. A cellular foam comprises a vinyl chloride polymer cross-linked by 0À1 to 30%, by weight of the polymer, of at least one cross-linking agent which is a compound having at least two polymerizable double bonds in the molecule, the polymer being: a homopolymer of vinyl chloride; a copolymer containing more than 50% by weight of vinyl chloride, or a mixture of thermoplastic polymers containing at least 40% by weight of the above homopolymer or copolymer; the vinyl chloride homopolymer or copolymer having a cross-linking degree (as defined by a method of test) of 5 to 90, and the foam having an average cell diameter of 10 to 500 microns, an apparent density of 0À015 to 0À7 g./c.c. and at least 50% of the cells of the foam being closed cells. The foam may be made by mixing the polymer, cross-linking agent and a foaming agent which is vaporized or decomposed on heating to give a gas, irradiating the mixture with radiation of a wavelength less than visible light and heating the mixture to a temperature higher than that at which gas is liberated from the foaming agent and higher than the softening point of the polymer. In the examples, sheets of polyvinyl chloride mixed together with ethylene/vinyl acetate copolymer, dioctyl, diallyl, butylbenzyl, or dibutyl phthalate, azodicarbonamide, tin laurate, hydroquinone diacrylate or dimethacrylate, lead stearate, bisphenol A dimethacrylate, TiO 2 , dinitrosopentamethylene tetramine, bis-(#- (meth- or) acryloyloxyethyl) terephthalate, bisbenzenesulphonyl hydrazide, hydroquinone divinyl ether, dibutyl tin laurate or maleate, divinyl benzene, chlorinated paraffin and/or polybutadiene; were irradiated and foamed.
GB2665168A 1967-06-03 1968-06-04 Cellular foamed products prepared from polymers of vinyl chloride and process for their preparation Expired GB1219803A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3515467 1967-06-03
JP5345367 1967-08-22

Publications (1)

Publication Number Publication Date
GB1219803A true GB1219803A (en) 1971-01-20

Family

ID=26374091

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2665168A Expired GB1219803A (en) 1967-06-03 1968-06-04 Cellular foamed products prepared from polymers of vinyl chloride and process for their preparation

Country Status (3)

Country Link
DE (1) DE1769509C3 (en)
FR (1) FR1597419A (en)
GB (1) GB1219803A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251924A1 (en) * 1971-10-21 1973-04-26 Exxon Research Engineering Co RIGID AND SEMI-RIGID PLASTIC FOAMS AND THE METHOD OF MANUFACTURING THEM
DE2606190A1 (en) * 1976-01-09 1977-07-21 Lonza Ag PROCESS FOR THE PRODUCTION OF HARD FOAM BASED ON POLYVINYL CHLORIDE
US4187159A (en) 1975-01-06 1980-02-05 Stauffer Chemical Company Process for forming a crosslinked polyvinyl chloride foam and product thereof by means of radiation crosslinking
FR2519344A1 (en) * 1982-01-04 1983-07-08 Armstrong World Ind Inc EXPANDABLE MIXTURE BASED ON POLYVINYL CHLORIDE PROVIDING A LOW DENSITY HAVING PRODUCT
EP3079878A4 (en) * 2013-12-12 2017-10-04 Diab International AB Apparatus and method for the production of expanded foam embryos

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1393680A (en) * 1971-11-23 1975-05-07 Atomic Energy Authority Uk Porous plastics materials
CN102558709B (en) * 2011-12-21 2013-10-30 常州大学 Flexible polyvinyl chloride foam material and molding method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251924A1 (en) * 1971-10-21 1973-04-26 Exxon Research Engineering Co RIGID AND SEMI-RIGID PLASTIC FOAMS AND THE METHOD OF MANUFACTURING THEM
US4187159A (en) 1975-01-06 1980-02-05 Stauffer Chemical Company Process for forming a crosslinked polyvinyl chloride foam and product thereof by means of radiation crosslinking
DE2606190A1 (en) * 1976-01-09 1977-07-21 Lonza Ag PROCESS FOR THE PRODUCTION OF HARD FOAM BASED ON POLYVINYL CHLORIDE
DK156442B (en) * 1976-01-09 1989-08-21 Lonza Ag PROCEDURE FOR MANUFACTURING HARD FOAMSTUFF MATERIALS BASED ON POLYVINYL CHLORIDE
FR2519344A1 (en) * 1982-01-04 1983-07-08 Armstrong World Ind Inc EXPANDABLE MIXTURE BASED ON POLYVINYL CHLORIDE PROVIDING A LOW DENSITY HAVING PRODUCT
DE3300040A1 (en) * 1982-01-04 1983-07-14 Armstrong World Industries, Inc., 17604 Lancaster, Pa. LOW DENSITY CELLULAR POLYVINYL CHLORIDE
EP3079878A4 (en) * 2013-12-12 2017-10-04 Diab International AB Apparatus and method for the production of expanded foam embryos
US10357905B2 (en) 2013-12-12 2019-07-23 Diab International Ab Apparatus and method for the production of expanded foam embryos
EP3750955A1 (en) * 2013-12-12 2020-12-16 Diab International AB Apparatus and method for the production of expanded foam embryos

Also Published As

Publication number Publication date
DE1769509C3 (en) 1979-06-21
DE1769509B2 (en) 1978-10-26
FR1597419A (en) 1970-06-29
DE1769509A1 (en) 1970-10-22

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