| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-96
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C68-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 |
| filingDate |
1994-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3794c7b1e37c5eb431b7a65b8a43177c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1acd0f4fb5927dc148b47cdbe121c431
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc12247cc864fddfe22d0c373cfab0e5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69682a03c13edd708c7e2b70d6892a4a |
| publicationDate |
1995-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H07316278-A |
| titleOfInvention |
Method for producing aromatic polycarbonate |
| abstract |
(57) [Summary] [Object] The present invention is to provide a method for obtaining an aromatic polycarbonate having an excellent quality which does not contain impurities, particularly chlorine compounds which cause coloring. [Structure] During the production of aromatic polycarbonate by the melt transesterification method, an aqueous solution of an aromatic hydroxy compound alkali metal salt and phosgene or an aromatic carbonic acid monoester chloride are combined with an aromatic compound in the presence of a tertiary amine catalyst. Aromatic carbonic acid diesters are obtained by carrying out a multi-stage reaction in a hydrocarbon / water mixed solvent using at least two reactors, and then reacting the aromatic carbonic acid diesters with aromatic dihydroxy compounds. Characteristic Aromatic Polycarbonate It is a method of manufacturing [Effect] By using the aromatic carbonic acid diester obtained by the method of the present invention as a raw material, a high-purity aromatic polycarbonate can be easily obtained. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10245366-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H115767-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10152455-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10152456-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11228504-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H115766-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H1129532-A |
| priorityDate |
1994-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |