http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0039845-B2
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-18 |
| filingDate | 1981-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1991-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1991-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0039845-B2 |
| titleOfInvention | Process for preparing polyarylates in two steps |
| abstract | Described herein is a process for preparing crystalline polyarylates which comprises (a) forming a crystalline polyarylate prepolymer having a reduced viscosity of from 0.05 to about 0.4 dl/g by reacting at least one diester derivative of a dihydric phenol with at least one aromatic dicarboxylic acid in the presence of a solvent, at a temperature of from about 250 DEG to about 300 DEG C., and (b) heating the prepolymer so formed below its melting point to form a crystalline polyarylate having a reduced viscosity of from about 0.45 to about 1.2 dl/g. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5959158-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6033635-A |
| priorityDate | 1980-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 184.