| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2973a1bdaf87d5184fb1e81ebe5d061 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00 |
| filingDate |
1998-03-04^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc4dd5fd97e04782a38545b823177e3a |
| publicationDate |
1999-09-14^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H11246654-A |
| titleOfInvention |
Method for producing liquid crystalline polyester and molded article thereof |
| abstract |
PROBLEM TO BE SOLVED: To provide a method for producing a liquid crystalline polyester which does not generate blister even when a molded article is left in a high-temperature air or liquid for a long time. SOLUTION: The production of a liquid crystalline polyester comprising a wholly aromatic ring skeleton and exhibiting anisotropy at the time of melt residence by a method of acylating an aromatic compound having a phenolic hydroxyl group with a fatty acid anhydride and transesterifying it with an aromatic carboxylic acid. A prepolymer polymerization step of a liquid crystalline polyester, wherein the fatty acid anhydride is used in an amount of 1.06 to 1.08 times the hydroxyl equivalent of the aromatic compound having a phenolic hydroxyl group, and the degree of polymerization of the prepolymer obtained from the step. And a solid-phase polymerization step for increasing the temperature. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002220444-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007002087-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4670153-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012530793-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2017075339-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7635726-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6664341-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015174913-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013531125-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006028287-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7304121-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113717501-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002146003-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002037869-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6512079-B2 |
| priorityDate |
1998-03-04^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |