http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011140645-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 2010-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4aa86ea1d88ea155984ea57058c4001 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e9245d02120c69d540a1ae5983ed9f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_031f5abd443342da1b12af7cc78b785e |
| publicationDate | 2011-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2011140645-A |
| titleOfInvention | Polycarbonate resin |
| abstract | The present invention provides a method for efficiently and stably producing a polycarbonate resin having excellent light resistance, transparency, hue, heat resistance, thermal stability, and mechanical strength and stable performance. SOLUTION: A method for producing a polycarbonate resin by polycondensation by a transesterification reaction in a plurality of stages using a catalyst and a carbonic acid diester and a dihydroxy compound as raw materials monomers in a plurality of stages, The dihydroxy compound includes a dihydroxy compound having a site represented by the following general formula (1) in a part of the structure; A reaction in which at least one reactor in which a distillate of a monohydroxy compound produced as a by-product distills 20% or more of the theoretical distillate comprises an internal volume of 20 L or more, a heating means using a heat medium, and a reflux condenser. The temperature difference between the temperature of the heat medium and the reaction liquid in the reactor is 5 ° C. or more, and the total amount of monomers distilled out in all reaction stages is 10 wt. % Of polycarbonate resin production method. [Selection figure] None |
| priorityDate | 2009-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 247.