http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101328839-B1
Outgoing Links
Predicate | Object |
---|---|
classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-1352 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2369-00 |
classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-041 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B65D65-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-1608 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B7-2534 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-0208 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-305 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B65D65-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 |
filingDate | 2008-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate | 2013-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationDate | 2013-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | KR-101328839-B1 |
titleOfInvention | Method for producing polycarbonate and molded polycarbonate |
abstract | SUMMARY OF THE INVENTION An object of the present invention is to provide a method for producing a polycarbonate comprising a plant-derived raw material which is excellent in mechanical strength, has high heat resistance, has a low refractive index, has a large Abbe number, has a small birefringence, and has excellent transparency, and a molded article thereof. It's about things. The present invention relates to a polycarbonate comprising a step of reacting a dihydroxy compound containing at least one dihydroxy compound having at least one linking group -CH 2 -O- in a molecule with a carbonic acid diester in the presence of a polymerization catalyst. A process for producing a polycarbonate having a formic acid content of less than 20 ppm in a dihydroxy compound having at least one linking group -CH 2 -O- in the molecule, wherein the molecule has at least one linking group -CH 2 -O- A polycarbonate comprising a structural unit derived from a dihydroxy compound, the polycarbonate has a Abbe number of 50 or more, and relates to a molded product comprising a polycarbonate or a composition of the polycarbonate having a 5% heat loss temperature of 340 ° C or higher. . |
priorityDate | 2007-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 399.