http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1238550-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0025 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0016 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3863 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-3215 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-32 |
| filingDate | 1969-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-07-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1238550-A |
| abstract | 1,238,550. Polyurethane foams. DOW CHEMICAL CO. 4 Dec., 1969 [4 Dec., 1968], No. 59340/69. Headings C3C and C3R. Flame-resistant rigid to semi-rigid closed or open cell polyurethane foams are prepared by mixing (1) a diphenol of the formula wherein R represents C 1-8 alkylidene, -S-, -S-, -SO- or -SO 2 -, X represents hydrogen, halogen or C 1-12 alkyl, and n is 0, 1, 2 or 3, or a mixture thereof with a polyether polyol, novolac polyol and/or polyester polyol in which the diphenol provides at least 50% of the total reactive OH groups; (2) an organic polyisocyanate; (3) a blowing agent; (4) an emulsifying agent; and (5) a catalyst for polyurethane formation; said polyisocyanate being used in proportions corresponding to from 0À9 to 2À0 NCO group for each OH and other active H atom present in the mixture of reactive materials. In an example, a foam is prepared from 4,4<SP>1</SP>-isopropylidene diphenol, a polymeric methylene di-(phenylisocyanate) having an average of 2À6 NCO groups per molecule, trichlorofluoromethane, triethyl phosphate, sodium acetate and a silicone surfactant. |
| priorityDate | 1968-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.