http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102863420-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc33c38f3463742a9bbcd2f81edf049f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 |
| filingDate | 2012-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5974820db0c752fc68339f742c0a1ac0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4640e6407465ba908083a7e2298cc41f |
| publicationDate | 2014-06-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102863420-B |
| titleOfInvention | Method for preparing medical lactide |
| abstract | The invention relates to the method for preparing medical lactide. The method includes: adding catalyst and high boiling-point solvent in lactic acid for condensation polymerization to enable the lactic acid to generate lactic-acid oligomer, and adding catalyst in the generated lactic-acid oligomer for depolymerization to obtain the medical lactide. The high boiling-point solvent is added during the condensation polymerization, so that a reaction system during depolymerization cannot become viscous, and is less prone to steam out, carbonize and turn yellow caused by distillation and reduction of lactide, stability of production process, product quality and variability of physical indexes are guaranteed; and the method for preparing medical lactide is high in yield, simple in reaction operation, free of danger, short in production time and beneficial to industrial production, and has quite high economic value. |
| priorityDate | 2012-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.