http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100451048-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95585944cd76ddfb6dc33ed2a0b84403 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40 |
| filingDate | 2005-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2009-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_505b8e75dd2b28965e5a514f27622d74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3e4c3b0a142cc8fc247814432e0062a4 |
| publicationDate | 2009-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-100451048-C |
| titleOfInvention | Refined polycarbonic ester organic solution and process for preparing high purity polycarbonic ester |
| abstract | The invention is to provide a process for manufacturing a high-purity polycarbonate, comprising: mixing a crude polycarbonate organic solution after completion of the polycondensation reaction by an interfacial polycondensation method which contains water-soluble impurities, with an aqueous washing liquid to form an emulsion; and performing purification using a coalescer. The manufacturing process performs the operation while controlling a draw-out amount of the polycarbonate organic solution whose moisture has been removed and which is drawn out from the coalescer and a discharge amount of the aqueous solution from the coalescer top which contains the impurities along with part of the polycarbonate organic solution, so that the polycarbonate organic solution and the aqueous washing liquid may not form a substantial interface by separating into two phases of the organic phase and the aqueous phase at least in the element section inside the coalescer. By operating as in the above, the manufacturing process produces the purified polycarbonate organic solution stably and produces the high-purity polycarbonate using the purified organic solution. |
| priorityDate | 2004-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 144.