http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20130140769-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6842ac50cf3ca2352074cb3a75079618 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04 |
| filingDate | 2011-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7d2022d5ec03ca2152421f8817e08c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45234013f31ba8205db1ffa0f3b268de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdf345ce58b3d1b79be7daa7278d86ab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1635c6e2eb4c538b3cfa0ec34bcae30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4336c75623bc39cd44830c610da0a739 |
| publicationDate | 2013-12-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20130140769-A |
| titleOfInvention | Method of producing polycarbonate |
| abstract | The polycarbonate production method polymerizes an aromatic dihydroxy compound and a diaryl carbonate by melt polymerization in the presence of a polymerization catalyst and the dihydroxy compound, the diaryl carbonate and a diaryl carbonate by-product. Generating a byproduct vapor stream comprising: adding a low vapor pressure compound to the byproduct vapor stream to produce a modified byproduct vapor stream, introducing the modified byproduct vapor stream to a separation unit, and the Removing volatile diaryl carbonate byproducts from the reformed byproduct vapor stream in the separation unit to form a treated byproduct stream and returning the treated byproduct stream to the polymerization reaction. Alternatively, the low vapor pressure compound may be added directly to the separation unit. |
| priorityDate | 2010-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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