http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1138473-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bdab1eee3828b72a2ec1f63ad1738325 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B44F1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-0066 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B44F1-00 |
| filingDate | 1966-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1138473-A |
| titleOfInvention | Manufacture of thermoplastic foams |
| abstract | 1,138,473. Thermoplastic foams. SOC. NATIONALE DES PETROLES D'AQUITAINE. 2 March, 1966 [3 March, 1965], No. 9207/66. Headings C3C, C3P and C3R. Foamed thermoplastic material is obtained by introducing under pressure an expansion fluid into a molten polymer in which are dispersed porous particles of an inorganic material which is neutral with respect to the polymer. Suitable thermoplastics are acrylic, vinylic and aromatic vinylic polymers and polymers of acrylonitrile derivatives, e.g. acrylate and methacrylate polymers and polymers of vinylic, acrylic and methacrylic halides and esters; polyamides; and especially polystyrene or copolymers of styrene. The porous powder may be alumina, silica, activated carbon, absorbent clays, metallic oxides, silicates, carbonates &c., e.g. fuller's earth, diatomaceous earths, magnesias, iron oxides, pumice, thorium oxides, bauxite, bentonite and molecular screens. The expansion fluid may be a gas, e.g. carbon dioxide, nitrogen, methane, methyl chloride or bromide, ethyl fluoride, difluorodichloromethane or a volatile liquid, e.g. paraffinic and olefinic hydrocarbons such as pentane, hexane and heptane, ketones such as acetone and methylethyl ketone, alcohols especially methanes, ethanes and propanes, ethers and esters with a heating point below 160‹ C. in water. The process may be carried out by melting the polymer in the presence of the porous powder in an autoclave and then injecting the expansion fluid or if the latter is a liquid it may be introduced before heating the polymer. A preferred method consists in supplying a combined mixing and extruding machine with the polymer, porous powder and expansion fluid. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103275407-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11759767-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6750264-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007149418-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03059997-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8076380-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009155066-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009155066-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1693413-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NL-1028357-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NL-1023638-C2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2021225227-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2019143303-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9005745-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0031719-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0031719-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4330634-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2774947-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1486530-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2007149418-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1170325-A4 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1170325-A1 |
| priorityDate | 1959-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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Total number of triples: 83.