http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S596217-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_95585944cd76ddfb6dc33ed2a0b84403 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 |
| filingDate | 1982-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1336fa524f0efb191139f77d33b08861 |
| publicationDate | 1984-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S596217-A |
| titleOfInvention | Production of polycarbonate |
| abstract | PURPOSE: To produce a quality polycarbonate in good efficiency, by reacting phosgene with an alkaline solution prepared from an aqueous slurry of a highly purified acicular crystals of a dihydroxydiphenylalkane. n CONSTITUTION: In producing a polycarbonate from (A) a dihydroxydiphenylalkane (e.g., 4,4'-dihydroxydiphenyl-2,2'-propane) and (B) phosgene; said component A comprises an aqueous alkaline solution prepared from an aqueous slurry of acicular crystals of dihydroxydiphenylalkane which are crystallized from a solution of a crude dihydroxydiphenylalkane in a halogenated aliphatic hydrocarbon (e.g., methylene chloride solution of crude bisphenol A). It is possible to produce a quality polycarbonate in good efficiency. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1982-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 18.