http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105418900-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2016-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105418900-B |
| titleOfInvention | The preparation method of poly butylene succinate and polylactic-acid block copolymer |
| abstract | The invention provides a kind of preparation method of poly butylene succinate, including:Under benzoic acid stannous catalytic action, succinic acid source and butanediol are subjected to esterification, poly butylene succinate is obtained.Present invention also provides a kind of preparation method of polylactic-acid block copolymer, comprise the following steps：Under benzoic acid stannous catalytic action, succinic acid source and butanediol are subjected to esterification, poly butylene succinate is obtained；Ring-opening copolymerization reaction is carried out after the poly butylene succinate is mixed with lactide, polylactic-acid block copolymer is obtained.During polylactic-acid block copolymer is prepared, benzoic acid stannous once added as catalyst can be catalyzed succinic acid and butanediol esterification, may then continue to be catalyzed the ring-opening copolymerization of lactide and poly butylene succinate；Secondary addition catalyst is avoided in whole course of reaction, catalyst amount is reduced, cost is reduced, production efficiency is improved. |
| priorityDate | 2016-01-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.