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 preparationInfo
- 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
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
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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
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.
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)
| 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)
| 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 |
-
1968
- 1968-06-04 GB GB2665168A patent/GB1219803A/en not_active Expired
- 1968-06-04 DE DE19681769509 patent/DE1769509C3/en not_active Expired
- 1968-07-03 FR FR1597419D patent/FR1597419A/fr not_active Expired
Cited By (9)
| 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 |
|---|---|
| DE1769509A1 (en) | 1970-10-22 |
| DE1769509B2 (en) | 1978-10-26 |
| DE1769509C3 (en) | 1979-06-21 |
| FR1597419A (en) | 1970-06-29 |
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