http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1308488-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0aac9b2bd9c92defa295843ca8a8c703 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S264-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S521-91 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0061 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 |
| filingDate | 1970-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1973-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1308488-A |
| titleOfInvention | Fluid transmitting polyolefin foam and method of making the same |
| abstract | 1308488 Olefinic polymer foams ASAHIDOW Ltd 11 Dec 1970 [11 Dec 1969] 59073/70 Heading C3C A fluid transmitting olefin polymer foam, e.g. as a film, comprises (1) an olefin polymer consisting of one or more polymers selected from polyethylene, polypropylene, an ethylene-butene copolymer, an ethylene vinyl ester copolymer, an ethylenically unsaturated carboxylic acid ester copolymer, or an ethylene-propylene copolymer and (ii) a polymer having poor compatibility with (i) and consisting of a polystyrene which may be rubber modified and/or a polymethacrylate. The foam has at least some of the cells with wall openings which co-operate with one another to form passages from openings in one surface of the foam to openings on other surfaces of the foam. The foam is made by incorporating in (i) and/or (ii) a thermal decomposition type blowing agent and subjecting the resulting foaming polymer mixture to extrusion moulding. Preferably also a volatile blowing agent is also incorporated in (i) and/or (ii). The thermal decomposition type blowing agent may be azodicarbonamide, barium azodi-caboxylate, diazoaminobenzene, 4,4<SP>1 </SP>- hydroxy - bisbenzenesulphonylhydrazide, p - toluenesulphonylhydrazide, or dinitrosopentamethylenetetramine, in admixture with, if desired, zinc stearate or calcium stearate. The volatile blowing agent may be a C 2 to C 6 saturated or unsaturated hydrocarbon, petroleum ether, or a halogenated hydrocarbon such as methyl or methylene chloride, trichlorofluoromethane, trichlorofluoroethane, dichlorofluoromethane or dichlorotetrafluoroethane. The product of the examples is a foamed film. The product may be used as a synthetic leather, filter cloth, diaphragm of an electrolytic cell, a storage battery separator, or as a synthetic paper. The foam may also be in the form of a tube, sheet or pipe. The Specification includes microphotographic views of the state of the cells in conventional foams and foams prepared according to the invention, and also a flow diagram of a compressed air test apparatus. |
| priorityDate | 1969-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.