| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cff62ee19588f053fe1f229df4e6c756 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-28 |
| filingDate |
1991-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14f0fb491653f0e9e8f1aa6711564ec4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7a7d5dc6a5b1a60b4742877d2fa2c51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4db5db3d8b1fbba69ecdf4e4cceb14e |
| publicationDate |
1993-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H0578469-A |
| titleOfInvention |
Method for producing polycarbonate |
| abstract |
(57) [Summary] [Purpose] Transesterification melt polycondensation method (non-phosgene method) from aromatic diol compounds and carbonic acid diester compounds. Provides a method for producing a high-molecular-weight aromatic polycarbonate having an improved hue. [Constitution] transesterification metal compound catalyst (for example, Bisphenol A and diphenyl carbonate are subjected to a melt polycondensation reaction in the presence of phosphorous acid and / or a phosphorous acid ester compound using dibutyltin oxide, lithium hydride or the like). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0782368-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014201738-A |
| priorityDate |
1991-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |