http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H059287-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/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00 |
| filingDate | 1991-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6cd61d7f1c33409388aee73e7133988 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd94d6382309f3925cec757ab26ceff8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_85a27c70ad00ed74aaaa3ff8e3de3d36 |
| publicationDate | 1993-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H059287-A |
| titleOfInvention | Method for producing polycarbonate |
| abstract | (57) [Summary] [Object] The present invention produces a polycarbonate having excellent mechanical properties, particularly impact resistance, heat resistance, and transparency, as well as improved retention stability and moldability, without using phosgene. A method for producing a polycarbonate is provided. [Structure] The method for producing a polycarbonate according to the present invention comprises: When a polycarbonate is produced by melt-polycondensing an aromatic dihydroxy compound and a carbonic acid diester in the presence of an end capping agent, an aromatic hydrocarbon represented by the following general formula [I] is used as the end capping agent. The alkoxy compound is used in an amount such that the unit can be introduced into 5 to 99% of the molecular ends of the obtained polycarbonate, and the amount of the unit is 1 × 10 −8 to 1 × 10 −3 with respect to 1 mol of the aromatic dihydroxy compound. (a) A method for producing a polycarbonate, which comprises melt-polycondensing in the presence of a catalyst containing an alkali metal compound and / or an alkaline earth metal compound, and adding an acidic compound to the resulting reaction product: ArO- [I] (In the formula, Ar is an aromatic hydrocarbon group having 6 to 50 carbon atoms.). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009133672-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8436129-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009263572-A |
| priorityDate | 1991-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 575.