http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-716388-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b09f893b262cefd50c5e76c4b85d1c0a |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S521-918 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S521-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S36-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C44-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-36 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-36 |
| filingDate | 1952-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1954-10-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-716388-A |
| titleOfInvention | Improved process for producing cellular thermo-plastic bodies |
| abstract | Sheets, foils, webs and like materials are made from closed cell cellular thermoplastic substances which have a lower specific gravity than the sheet &c. to be produced, by cutting the cellular material into sheets &c. of greater thickness than finally desired and then heating so as to contract the sheet &c. as the gases escape therefrom by diffusion and so increase the specific gravity thereof. The gas diffusion may be effected at reduced pressure, e.g. in a vacuum. Specified thermoplastics are polyvinyl chloride, copolymers of vinyl chloride with vinylidine chloride, polyvinylidene chloride, polyvinylacetate, butyrate and alcohol, polyvinyl formal and butyral, polystyrene, polydichlor-styrene, polyalphamethyl styrene, polymethyl acrylate, polyethyl acrylate and polymethyl methacrylate. Plasticizers such as dioctyl, dibutyl and dimethyl phthalate and tricresyl phosphate may be present. Specified blowing agents are aziosobutyric dinitrile, alpha, - alpha1 - azobisisobutyronitrile diazoaminobenzene, 1-3 bis (p-xenyl) triazene, ammonium carbonate, sodium bicarbonate and oleic acid, and mixtures of sodium nitrate with ammonium chloride. Hydrogen may also be present in the closed cells. The p products may be used for shoe soles Specification 706,721 is referred to. |
| priorityDate | 1951-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 56.