http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10176047-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-14 |
| 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/C08G64-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 1997-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ba7c3edc45e6f366507d375b3934673 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4043d83dfffbd1a28e6d7cfb64a8454e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_860a9f1fdae7c689a329cf8c85ebb180 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_356d56acf7b7ef37bd6da01fe15cf876 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_647c5d18940f307906d7da02343bd5ed |
| publicationDate | 1998-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H10176047-A |
| titleOfInvention | Method for producing polycarbonate by solid state polymerization |
| abstract | (57) [Summary] (with correction) [PROBLEMS] An oligomer which can introduce crystallinity in a relatively short time, can use a catalyst which does not contain a substantial amount of alkali metal, and has a relatively low molecular weight The present invention provides an improved method for solid-state polymerization of polycarbonate, which can use an oligomer intermediate having a wide range of terminal group concentrations. A method for producing a polycarbonate, comprising: (A) a step of converting a precursor polycarbonate into a highly crystalline precursor polycarbonate; and (B) a step of polymerizing the highly crystalline precursor polycarbonate in a solid state. The precursor polycarbonate is brought into contact with a dihydroxy aromatic compound or the like, and the conversion of the precursor polycarbonate into a highly crystalline precursor polycarbonate is brought into contact with a catalytic amount of a compound such as a tetraalkylammonium hydroxide to form a highly crystalline precursor polycarbonate. Is carried out by contacting with a catalytic amount of a tetraalkylammonium or the like. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002226571-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4713750-B2 |
| priorityDate | 1996-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 99.