http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018525478-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-90 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2016-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-09-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2018525478-A |
| titleOfInvention | Method for producing polylactic acid |
| abstract | Lactic acid or lactic acid is polymerized, and when the remaining monomer is 1 to 8 mol% with respect to the total amount of added monomers, phenol having steric hindrance is added and subjected to additional reaction to cause heavy polymerization. A polymerization step for obtaining a coalescence; a cooling step for obtaining pellets from the polymer; and an inert gas flowing into the reactor containing the pellets at a rate of 0.001 to 0.5 L / min ยท g while heating. The present invention relates to a method for producing polylactic acid including a residual monomer removing step. According to the method for producing polylactic acid, it is possible to provide high-quality polylactic acid by effectively removing residual monomers while minimizing changes in the physical properties of polylactic acid. |
| priorityDate | 2015-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.