http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100298637-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 |
| filingDate | 1999-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2001-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100298637-B1 |
| titleOfInvention | Process for the preparation of polycarbonate |
| abstract | The present invention relates to a method for producing a polycarbonate resin, and more particularly, in a method for producing a polycarbonate resin in which a solid phase polymerization is carried out by crystallizing a prepolymer polymerized from an aromatic dihydroxy compound and a diaryl carbonate. After preparing the viscosity average molecular weight in the range of 4,000 to 18,000 g / mole, inert high-pressure gas was injected to prepare a prepolymer foam having fine pores, and then subjected to solid phase polymerization to prepare a polycarbonate resin, thereby reacting during solid phase polymerization. The phenol produced as a by-product is not only easily removed, and a method of preparing a polycarbonate resin capable of increasing molecular weight due to high polymerization rate without using a catalyst at all. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100561743-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100878453-B1 |
| priorityDate | 1999-06-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.