http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H01299823-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95585944cd76ddfb6dc33ed2a0b84403 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 |
| filingDate | 1988-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34e7a372ced343bd5aa3f588b08d361e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d9f81b18acdd5b8afdf82d039adbd69 |
| publicationDate | 1989-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H01299823-A |
| titleOfInvention | Polycyanoaryl ether and its production |
| abstract | PURPOSE: To obtain a polycyanoaryl ether having a high glass transition temperature and a high initial heat decomposition temperature and improved in heat resistance, moldability, etc., by reacting a specified dihalobenzonitrile with 2,2-bis(3-phenyl-4-hydroxyphenyl)propane. n CONSTITUTION: 2,2-Bis(3-phenyl-4-hydroxyphenyl)propane (A) is polycondensed with 0.98W1.02mol, per mol of component A, of a dihalobenzonitrile (B) of formula I (wherein X is a halogen atom), e.g., 2,6-difluorobenzonitrile, by heating in the presence of an alkali metal (C) (e.g., K 2 CO 3 ) in an aprotic polar solvent (e.g., N-methylpyrrolidone) to obtain a polycyanoaryl ether having repeating units of formula II and a reduced viscosity (in p-chlorophenol solution in a concentration of 0.2g/dl at 60°C) ≥0.2dl/g. n COPYRIGHT: (C)1989,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1058729-C |
| priorityDate | 1988-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.