| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 |
| filingDate |
1993-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_232b77d695f8450d1d729cce0c06dc33
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_620909bc47401127f9c502a296289195
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_058e883349edc4afc4f41b7110141426 |
| publicationDate |
1994-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H06271660-A |
| titleOfInvention |
Method for producing polycarbonate |
| abstract |
(57) [Summary] [Purpose] To obtain a polycarbonate having improved heat resistance, water resistance and color tone. In the present invention, a polycarbonate is produced by subjecting an aromatic dihydroxy compound and a carbonic acid diester to melt polycondensation in the presence of a quaternary ammonium hydroxide salt and a cyclic borate ester. |
| priorityDate |
1993-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |