http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02113024-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 |
| filingDate | 1988-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ef7a0a00b3f80ab52c2f59814653a4a6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e04c66845bd0d64faf434f3563eb426c |
| publicationDate | 1990-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02113024-A |
| titleOfInvention | Preparation of liquid crystal polyester |
| abstract | PURPOSE: To provide the subject polymer containing a reduced amount of foreign matters and having excellent heat resistance, strength, etc., by copolymerizing specific structural units. n CONSTITUTION: (A) p-Hydroxybenzoic acid giving a structural unit of formula I is is reacted with polyethylene terephthalate, etc., giving a structural unit of formula II at 100-250°C and the reaction product is polycondensed with a compound of formula III [X is R - CO (R - is alkyl) or H; R is phenyl, alkyl, etc.], such as p-acetoxybenzoic acid preferably at 250-350°C under vacuum to provide the objective polyester having an intrinsic viscosity of 0.5-5.0dl/g. n COPYRIGHT: (C)1990,JPO&Japio |
| priorityDate | 1988-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.