| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2369-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-1608
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-16 |
| filingDate |
2012-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_031f5abd443342da1b12af7cc78b785e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4aa86ea1d88ea155984ea57058c4001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1dfb4e26c84a8d0b18a2d8f483d733e |
| publicationDate |
2014-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2014074107-A |
| titleOfInvention |
Method for producing polycarbonate resin |
| abstract |
[PROBLEMS] To provide a method for efficiently and stably producing a polycarbonate resin having excellent heat resistance, thermal stability, hue, optical properties, and capable of being melt-molded and having few foreign substances. A method for producing a polycarbonate resin obtained by polycondensation of a raw material composition containing at least a dihydroxy compound represented by a spiroglycol derivative and a fluorene derivative and a carbonic acid diester, the method comprising the steps of: The polycarbonate resin is filtered using a filter having a filter medium made of a metal nonwoven fabric that is 50 mol% or more of the dihydroxy compound that is a spiroglycol derivative and heat-treated at a temperature of 330 ° C. to 600 ° C. Manufacturing method. [Selection figure] None |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015232091-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019203984-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7258475-B2 |
| priorityDate |
2012-10-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |