| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_199450d8e2d705a2b559ce4c32e5dcb3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7ea1bd1db35580c5b52e931ac2b7fc01 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate |
2017-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19918708e6dcb7c0db7d385cabe410ec
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95afbea9d25efda4cec863e7e0013178
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80e0d62474881aef5a47aa57db3a6f06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e2a2d28a55a3642c5554bf5456b926c |
| publicationDate |
2017-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2017218597-A |
| titleOfInvention |
Poly (2-hydroxyalkanoic acid) and process for producing the same |
| abstract |
A process for producing poly (2-hydroxyalkanoic acid) with improved melt stability is provided. The method of the present invention comprises: a) a step of mixing a cyclic diester of 2-hydroxyalkanoic acid and a polymerization catalyst; b) polymerization of the cyclic diester to bring poly (2-hydroxyalkanoic acid) into the liquid phase. Forming step, c) adding phosphate ester to the liquid phase as a catalyst deactivator, d) applying a devolatilizing step to the liquid phase, and e) the poly (2-hydroxyalkanoic acid). And the catalyst deactivator is added after the devolatilization step is applied. [Selection] Figure 2 |
| priorityDate |
2012-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |