http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101891733-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd7c27b9ec61781656e6f039702fd568 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-12 |
| filingDate | 2009-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc9a607febc21d99c9cf3d462e71424e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac8fa36fb3a52a84d6876311985f46d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_869c05334ce8b1d865aed009e6e6e86c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9d643f32e37f845407c579ad58e917e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2fbf27d296b17843198cdd29146a4395 |
| publicationDate | 2013-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101891733-B |
| titleOfInvention | Catalyst for direct conversion of esters of lactic acid to lactide and the method for producing lactide using the same |
| abstract | The present disclosure discloses a catalyst for directly producing a lactide which is a cyclic ester used as a monomer for polylactides, and a method for directly producing a lactide using the catalyst, the method including the transesterification reaction between two molecules of an ester of lactic acid or a mixture containing the ester of lactic acid with a small amount of lactic acid and oligomer of lactic acid under an inert environment in the presence of a titanium-based catalyst or a catalyst mixture containing the titanium-based catalyst so as to produce lactide while simultaneously removing an alcohol (ROH) generated as a by-product. As compared to a conventional commercialized process, since the method for producing a lactide in accordance with the present disclosure is a novel process capable of directly producing the lactide from the ester of lactic acid, energy consumption is low and the lactide can be produced through a simple process showing a high yield while maintaining optical property (D-form or L-form optical isomer). |
| priorityDate | 2009-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.