http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2000136237-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6ee5332511e21d1f63564d84b98214c9 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 1998-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84c9341a0d3618a861b270a22b00d211 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6361ff1b41a03b0da225144e3954b24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_877100a29223b3a0e60a309be38fdcc3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd9d22cacf170d5d2967e57911b9c340 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85a27c70ad00ed74aaaa3ff8e3de3d36 |
| publicationDate | 2000-05-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2000136237-A |
| titleOfInvention | Method for producing polycarbonate |
| abstract | (57) Abstract: Provided is a method for suppressing the side reaction and efficiently producing a polycarbonate having an improved hue with less branching. When a polycarbonate is produced by a transesterification reaction between a dihydroxy compound and a carbonic acid diester, the total amount of the alkali metal compound and the alkaline earth metal compound contained as impurities in the dihydroxy compound and the carbonic acid diester is 1 mol of the dihydroxy compound. On the other hand, a dihydroxy compound and a carbonic acid diester in amounts of 1 × 10 −7 mol or less are used as raw materials, and an alkali metal phosphite is used as a catalyst. |
| priorityDate | 1998-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 205.