http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-954095-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/Y10S521-902 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-02 |
| filingDate | 1961-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dec44051886ea260f1dbf65b41fcefd3 |
| publicationDate | 1964-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-954095-A |
| titleOfInvention | Improvements in the manufacture of polymers |
| abstract | A process for the polymerization of polyisocyanates by contact with a basic polymerization catalyst in an inert solvent to obtain isocyanurate polymers containing free isocyanate groups, is characterised in that the polymerization mixture contains not more than 0.03% by weight of water. In examples polymers are obtained from tolylene-2:4-diisocyanate and tolylene-2:6-diisocyanate in butyl acetate, ethyl acetate, methyl isobutyl ketone and a mixture of toluene and ethyl acetate, using calcium naphthenate and lead naphthenate as catalysts and with the addition of phenol to obtain mono-N-substituted carbamic esters as co-catalysts, the reaction mixtures containing less than 0.03% by weight of water. Other polyisocyanates, solvents and catalysts are mentioned. Specifications 842,154 and 920,080 are referred to. |
| priorityDate | 1961-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.