http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1357631-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G2110-0083 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-667 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7607 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-66 |
| filingDate | 1971-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1974-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1357631-A |
| titleOfInvention | Polyurethane foams |
| abstract | 1357631 Polyurethane foams IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Jan 1972 [21 Jan 1971] 2833/71 Heading C3R Flexible foamed polyurethanes are prepared by reacting together in the presence of a blowing agent and a conventional cross-linking agent free from phosphorus and of molecular weight not exceeding 500, a polyether having 3 or 4 hydroxyl groups and a polyisocyanate composition comprising from 70 to 90% by weight of a tolylene diisocyanate and from 30 to 10% by weight of a diarylmethane diisocyanate composition containing related triisocyanate and higher polyisocyanates in addition to diisocyanate. In an example a mixture of 80 : 20 TDI and a crude diphenylmethane diisocyanate, containing diisocyanate triisocyanate and higher functionality isocyanate, such as may be prepared by phosgenating an acid catalysed aniline-formaldehyde condensation product, is reacted with an ethylene oxide tipped oxypropylated glycerol of hydroxyl value 32 mg. KOH/gm. and having 13% of the alkylene oxide units derived from ethylene oxide, in presence of water as a blowing agent, triethylamine and 1,4-diazabicyclo- (2,2,2)octane as catalysts, and a triethanolamine cross-linking agent. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0694570-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112920539-A |
| priorityDate | 1971-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.