http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2003183377-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-06 |
| filingDate | 2001-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5329691231c5363be1a4473de4a57237 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_867c4c8e92db9ddf90a7710634553b5b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_620909bc47401127f9c502a296289195 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af0a73aa5393149d4497733eac215298 |
| publicationDate | 2003-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2003183377-A |
| titleOfInvention | Aromatic polycarbonate, aromatic polycarbonate composition and method for producing the same |
| abstract | (57) [Problem] To provide an aromatic polycarbonate having good transparency and a composition thereof. SOLUTION: The following formula (1) obtained by polycondensing an aromatic dihydroxy compound and a carbonic acid diester in the presence of a transesterification catalyst: (R 1 , R 2 , R 3 and R 4 in the above formula are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, an aralkyl group having 7 to 10 carbon atoms or 6 to 6 carbon atoms. And W is a single bond, an alkylidene group, an alkylene group, a cycloalkylidene group, a cycloalkylene group, an oxygen atom, a ketone group, a sulfur atom, a sulfoxide group, or a sulfone group. ), Having a viscosity average molecular weight of 10,000 to An aromatic polycarbonate having a molecular weight of 25,000, wherein the transesterification catalyst contains an alkali metal (M 1 ) element having an atomic number of 37 or more and an alkali metal (M 2 ) element having an atomic number of 19 or less, and a molar ratio of the alkali metal element (M 1 / M 2 ) is a mixture of 10 2 to 10 4 . |
| priorityDate | 2001-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 266.