http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8394913-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_15b88c41e7db78ecc9c15e6623a8b314 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_180e085e3379ddf76733e9e46c2a23bc http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e443fcd44793752f156437bbfd4c8603 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-44 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-40 |
| filingDate | 2012-02-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_439270024949e765738395bc935e7c1d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_68259d66b706309e1aabd2751483472c |
| publicationDate | 2013-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-8394913-B2 |
| titleOfInvention | Method for producing polyphenylene ether |
| abstract | Method for producing polyphenylene ether, comprising preparing a polymerization solution of 10-25 parts by mass of a phenolic compound (M) and 75-90 parts by mass of an aromatic solvent (A) with the total of the compound and the solvent being 100 parts by mass, and 0.1-10 parts by mass of a catalyst (C) containing a metal salt; performing oxidative polymerization of the phenolic compound (M) by passing oxygen-containing gas through polymerization solution; stopping polymerization by mixing aqueous chelating agent solution into polymerization solution; subjecting a diphenoquinone compound produced as a by-product to quinone binding process or removal by reduction; and obtaining polyphenylene ether by separating aqueous phase through liquid-liquid separation. In the method for producing a polyphenylene ether, 0.001-0.004 part by weight of an ion catalyst (D) is added into the polymerization solution before the liquid-liquid separation. |
| priorityDate | 2008-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 288.