| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_05effb43c5f2a4355a0c8d6a2856afd1 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 |
| filingDate |
1993-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf0a5dff64bcab77f2152148768d6842
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c10563e6a24f4a1fb500d32234381966
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf6c07292c726b2c2b76914385b8407b |
| publicationDate |
1994-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0630371-A1 |
| titleOfInvention |
SOLVENT-FREE DISTILLATION PROCESS RELATING TO A DIMER CYCLIC ESTER. |
| abstract |
A dimeric cyclic ester of alpha-hydroxycarboxylic acid (lactide) is separated and recovered from a product stream taking the form of vapor and containing the cyclic ester, the hydroxycarboxylic acid (lactic) corresponding to point d Lower boiling, higher boiling oligomeric hydroxycarboxylic acid, as well as water, without the use of solvents. Specifically, the vapor stream is condensed to give a condensate which practically contains all of the cyclic ester. This condensate is refined only by distillation, in order to recover a practically water-free cyclic ester, alpha-hydroxycarbylic acid and the higher boiling oligomers. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2128152-A1 |
| priorityDate |
1992-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |