http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1357119-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_41ac7ff6ab574ca3737b892da2ebfe6f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P7-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-785 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 |
| filingDate | 2001-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea2ad54b754149bc5eda69ac80e4ec84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91a203bf387acb282052d1d88cca6539 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66431ca69b443d892bb3480bf2ce030c |
| publicationDate | 2003-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1357119-A1 |
| titleOfInvention | Process for producing lactide and process for producing polylactic acid starting with fermented lactic acid |
| abstract | According to the present invention, a process fornconsistently producing lactide from ammonium lactate obtainednby lactic fermentation, and a process for consistentlynproducing polylactic acid from ammonium lactate obtained bynlactic fermentation, are provided. A process for producingnlactide, which comprises the steps of: (1) synthesizingnlactate ester from ammonium lactate obtained by lacticnfermentation; (2) polycondensing the lactate ester in thenpresence of a catalyst other than monobutyltin, wherebynpolylactic acid with a weight-average molecular weight ofnless than 15,000 (lactic acid prepolymer) is synthesized;nand (3) depolymerizing the polylactic, whereby lactide isnproduced. A process for producing polylactic acid, whichncomprises the additional step of (4) ring-openingnpolymerizing said lactide, whereby polylactic acid isnobtained. A process for producing lactate ester fromnammonium lactate obtained by lactic fermentation. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004057008-A1 |
| priorityDate | 2001-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 114.