http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-813972-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_043c6a4e90e797f67a0e5cb252d30c56 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-686 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-681 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-4021 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-68 |
| filingDate | 1957-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1959-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-813972-A |
| titleOfInvention | Hardenable compositions comprising epoxy resins, and a process for curing these compositions |
| abstract | Compositions which together with fillers, pigments, dyes &c may be ground to give moulding powders consist of an epoxy resin having an epoxy equivalent of from 0.1-0.8, a novolak resin obtained by condensation of an aldehyde and an alkylated or non-alkylated phenol and having an average number of phenolic hydroxyl groups per mol. of at least 2, and an organic nitrogen compound having the structural group <FORM:0813972/IV (a)/1> e.g. dicyandiamide, guanidine or melamine. Proportions of 20-300 parts novolac resin, 100 parts epoxy resin and 0.1-8 parts nitrogen compounds are suitable. The compositions are hardened by heating to 80-250 DEG C. but stable precondensates may be obtained by cooling to below 50 DEG C. before hardening starts. In one example a composition consisting of 100 parts epoxy resin, 70 parts novolak resin and 1 part dicyandiamide is hardened by heating at 140-180 DEG C. and from 13.2 to 8.3 hours. Specifications 636,696, 666,299 and U.S.A. Specification 2,521,911 are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3086954-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4866133-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0185118-A1 |
| priorityDate | 1956-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.