http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001206940-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-133 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate | 2000-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a200d4c62c816de43f0bde4685ab359a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_681ae3586abc9222535054cd0b7454ae http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5329691231c5363be1a4473de4a57237 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73a5165336b5b70a9dacd6ae87567a2a |
| publicationDate | 2001-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2001206940-A |
| titleOfInvention | Method for producing wholly aromatic polyester |
| abstract | PROBLEM TO BE SOLVED: To economically produce a high-quality amorphous wholly aromatic polyester having a specific aromatic dicarboxylic acid as an acid component and a bisphenol as an aromatic diol component with good productivity. I will provide a. SOLUTION: An aromatic dicarboxylic acid and a bisphenol are heated and melt-reacted in the coexistence of a diaryl carbonate to produce an amorphous wholly aromatic polyester, and terephthalic acid and isophthalic acid are mixed at a specific molar ratio. A pre-polymerization step of reacting a mixed dicarboxylic acid and a bisphenol containing the same with a diaryl carbonate, preferably in the presence of a specific catalyst to obtain a prepolymer; a crystallization step of crystallizing the prepolymer; By performing a solid-phase polymerization step of heating the polymer under specific conditions to increase the degree of polymerization, in this order, a high polymerization degree non-binding wholly aromatic polyester having a reduced viscosity of 0.6 dl / g or more can be obtained. Manufacture inexpensively with good productivity. |
| priorityDate | 2000-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.