http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57198726-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/C08G63-181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 |
| filingDate | 1981-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f0d303744fef7ec18c81928d72a3507 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_72e387134531dc8a635e945282412430 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9587af73612936c8a9571c5dc3060830 |
| publicationDate | 1982-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57198726-A |
| titleOfInvention | Preparation of copolymerized polyester |
| abstract | PURPOSE: To obtain a copolymerized polyester having rigidity, high heat resistance, and improved color tone efficiently, by esterifying a specific aromatic dicarboxylic acid component with an alkylene glycol, followed by polycondensation. n CONSTITUTION: (A) An aromatic dicarboxylic acid component comprising 25W 80mol% 4,4'-diphenyldicarboxylic acid having an average longer diameter of particle of ≥0.8μ is esterified with (B) an alkylene glycol (preferably ethylene glycol), and this esterified substance is subjected to polycondensation to give the desired polyester. The diphenylcarboxylic acid, for example, is preferably obtained by dissolving 4,4'-diphenyl-carboxylic acid in dimethyl sulfoxide, followed by purifying it through recrystallization, etc. Terephthalic acid, etc. is preferable as another acid component of the component A, etc. n EFFECT: Slurry properties are improved, and esterification can be carried out in a short time stably and efficiently. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10767005-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10287402-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002037870-A |
| priorityDate | 1981-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.