http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SG-183000-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-406 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| filingDate | 2008-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b8bd7a8d56ae6ebd4c722e9a1218597c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e982ffe640e0cffc9ec799de15e70f4 |
| publicationDate | 2012-08-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SG-183000-A1 |
| titleOfInvention | Process for producing aromatic polycarbonate resin |
| abstract | The present invention relates to a process for producing an aromatic polycarbonate resin having a less content of foreign matters or phenols which is prevented from suffering from prolonged retention and deterioration of the resin in a filter. When producing a purified aromatic polycarbonate resin by treating a molten aromatic polycarbonate resin with a polymer filter, a filter having a concentration ratio of a chromium atom to an iron atom (Cr/Fe) of not less than 1.5 as measured on an outermost surface thereof by X-ray photoelectron spectroscopy is used as the polymer filter. In a preferred embodiment of the present invention, the polymer filter is a filter comprising a carbon film layer having a thickness of not more than 10 nm on an outermost surface thereof, and an oxide film layer having a thickness in its depth direction of not less than 100 nm as measured by Auger electron spectroscopy.No Figure |
| priorityDate | 2007-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.