http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010079768-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-87 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-80 |
| filingDate | 2000-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2001-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010079768-A |
| titleOfInvention | Process for producing aliphatic polyester |
| abstract | The present invention relates to a process for producing a crystalline aliphatic polyester prepolymer having a weight average molecular weight of 2,000 to 100,000 formed from an aliphatic divalent alcohol and an aliphatic dicarboxylic acid by solid phase polymerization in the presence of a volatile catalyst to obtain a polyester having a weight average molecular weight of 50,000 to 1,000,000 To an aliphatic polyester. The present invention also provides a process for producing an aliphatic polyester. This method is much more efficient than the conventional method which requires a complicated process for catalyst removal, since it is possible to remove the catalyst from the reaction system during the solid phase polymerization and / or after the solid phase polymerization. The polyester has stability comparable to the aliphatic polyester from which the catalyst has been removed. |
| priorityDate | 1999-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 91.