http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S63277667-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-92 |
| filingDate | 1987-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_942b383291b422becabb8bb93575d571 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a0c7e02b72c9d6a7dc53fe03d64f7d0 |
| publicationDate | 1988-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S63277667-A |
| titleOfInvention | Production of tetrabasic acid anhydride |
| abstract | PURPOSE: To obtain the titled compound useful as a curing agent for epoxy resin, etc., in high purity in colorless state, by reacting styrene with maleic anhydride using an aromatic amine selected from 5,10-dihydrophenazine compounds, phenoxazine compounds, etc., as a polymerization inhibitor. n CONSTITUTION: A tetrabasic acid anhydride of formula is produced by the addition reaction of a styrene compound with maleic anhydride using a polymerization inhibitor consisting of an aromatic amine selected from 5,10- dihydrophenazine compounds, phenoxazine compounds and iminostilbene (5H- dibenzo[b,f]azepine) compounds. The amount of the inhibitor is preferably about 0.05W5wt.% based on the stoichiometric amount of produced tetrabasic acid anhydride. The reaction easily proceeds by an extremely simple operation comprising the mixing of raw materials. The product is useful as a raw material for polyimide resin and polyester resin. n COPYRIGHT: (C)1988,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0318855-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007238739-A |
| priorityDate | 1987-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.