| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-92
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-912
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-625
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-82 |
| filingDate |
2008-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2010-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-WO2008096895-A1 |
| titleOfInvention |
Method for producing polylactic acid |
| abstract |
An object of the present invention is to produce a polylactic acid having a high molecular weight with a weight average molecular weight (Mw) exceeding 100,000 and capable of growing only a stereocomplex crystal even after repeated melting and crystallization. The present invention includes (i) a step (i) in which poly-L lactic acid and poly-D lactic acid are kneaded at a temperature of 160 to 225 ° C. and crystallized to obtain a solid, and (ii) the obtained solid is melt-kneaded. Performing step (ii), Is a method for producing polylactic acid. |
| priorityDate |
2007-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |