http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SG-171854-A1
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_09045c96c18ce1bf6f3a4ce654d7f1be |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2069-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-387 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2369-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-345 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-0002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2105-251 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-395 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29B9-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-16 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/B29C48-395 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C48-04 |
| filingDate | 2009-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a171bd3e73fa3015cae723d752036e23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5364d7d90fae7567a5e3d6e5982dd350 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d3816882c386f53a3c9e849057a9303 |
| publicationDate | 2011-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SG-171854-A1 |
| titleOfInvention | Method for preparing fine spherical polycarbonate powders and method for preparing high molecular weight polycarbonate resin using same |
| abstract | ]METHOD FOR PREPARING FINE SPHERICAL POLYCARRONATE POWDERS AND METHOD FOR PREPARING HIGH MOLECULAR WEIGHT 5 POLYCARBONATE RESIN USING SAMEProvided are a method for preparing fine round powdery polycarbonate and a method for preparing a high molecular weight polycarbonate resin using the same.More specifically, provided are a method for preparing fine round powdery polycarbonate, comprising (A) polymerizing non-phosgene polv-arbonate, (E) eytruding the polycarbonate into fine round powdery amorphouspolycarbonate, (C) surface-crystallizing the fine round15 powdery amorphous polyearbonate in the presence of a solvent or dispersion medium, and (D) drying the surface-crystallized fine round powdery polycarbonate, and a method for preparing high molecular weight polycarbonate resin capable of obtaining poi,' arbonates with various20 molecular weights ranging from low molecular weights to high molecular weights by continuously using the obtained fine round powdery polycarbonate via a solid state polymerization step. In accordance with the methods, it is possible to remarkably simplify crystallization of25 amorphous polycarbonate and thus to realize process continuousness and economical efficiency enablingcommercial mass-production, and to overcome production of high molecular weight polycarbonate, the most serious problem of conventional non-phosgene melt polymerization5 processes. Figure 5 |
| priorityDate | 2008-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID6371 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419558836 |
Total number of triples: 30.