http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101641727-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D167-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L101-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-91 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 |
| filingDate | 2014-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101641727-B1 |
| titleOfInvention | Preparation method of stereoblock polylactide |
| abstract | (1) preparing D-lactide and L-lactide, respectively; (2) polymerizing the D-lactide under catalytic conditions to prepare PDLA; (3) When the monomer conversion of the D-lactide to be polymerized reaches 80 to 95%, L-lactide in an amount of 10 to 30 mol% in the total amount of L-lactide prepared above is added and polymerization reaction is carried out, Forming a PDLLA chain at the end of PDLA; And (4) when the conversion of the total monomer of the D-lactide and L-lactide to be polymerized reaches 80 to 95%, the remaining amount of L-lactide in the prepared L-lactide is added, (Sb-PLA) comprising forming a PLLA chain at the end of the PDLLA chain, wherein the production process according to the present invention comprises a step of removing residual monomer in the middle of the reaction In addition, in the one-port synthesis, it is possible to control the monomer conversion while gradually introducing the polymerized monomer, thereby reducing the chain transition at the polymerization, so that the polymer chain is multiblocked and oligomerized . |
| priorityDate | 2014-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.