http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0010050-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-16 |
| filingDate | 1979-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1982-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0010050-B1 |
| titleOfInvention | Process for the preparation of aromatic copolyesters |
| abstract | A process is disclosed for the production of alkylaromatic copolyesters, characterized in that there are reacted, successively, at a temperature below 250 DEG C., a diester of a dihydroxyaromatic compound and an aliphatid diacid of the general formula HOOC(CH2)nCOOH, in which 3</=n</=10, with a molar ratio of the diester to the diacid of between 1.5 and 4, until the degree of completion of the reaction is greater than or equal to 85%, and them, at a temperature above 250 DEG C., an aromatic and/or cycloaliphatic dicarboxylic acid, and in that the product obtained is subjected to a polycondensation reaction under reduced pressure for a duration which is less than or equal to 1 hour 30 minutes. This process makes it possible to produce copolyesters which may be readily converted in the molten state to threads, films and molded articles. |
| priorityDate | 1978-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.