http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02180924-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-682 |
| filingDate | 1989-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0295230ae4e49f36fe9a53e9057e235d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02735100be720d8c0b5680bd02198a66 |
| publicationDate | 1990-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02180924-A |
| titleOfInvention | Production of liquid crystal polyester |
| abstract | PURPOSE: To obtain a liquid crystal polyester excellent in mechanical properties and capable of giving a molding lowly anisotropic in mechanical properties and resisting to fibrillation by acetylating a specified aromatic carboxylic acid, a specified bisphenol, a specified aromatic dicarboxylic acid and a specified polyester obtained from ethylene glycol and polymerizing the reaction mixture through the elimination of acetic acid. n CONSTITUTION: A liquid crystal polyester is obtained by treating p- hydroxybenzoic acid (A), an aromatic hydroxy compound (B) selected from among 8 members including 4,4'-dihydroxybiphenyl, an aromatic dicarboxylic acid (C) selected from among 5 members including terephthalic acid and a polyester (D) obtained from ethylene glycol and component C with acetic anhydride to acetylate their hydroxyl groups, and the obtained reaction mixture is polymerized through the elimination of acetic acid. This polyester comprises structural units (I) (of the formula), II (-(OR 1 O)-), III (-(OH 2 CH 2 O-) and IV (-(CR 2 -CO)-), wherein I+II is 30-77mol% based on I+II+III, III is 70-23mol% based on I+II+III, the molar ratio I/II is 75/25-95/5, and IV is equimolar to II+III. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019188959-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2019188959-A1 |
| priorityDate | 1989-01-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.