| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bb2a9807d1ca929e4f1798c79ebecb9e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-1942
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D167-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-48 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D167-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-04 |
| filingDate |
1993-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccae56b42372709c48765ef94c98d2d2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10f74cfaee41e15061ffc49e10b88b73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84385e5ff2c4f7980e509e4868fe7056
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3594873e52a3f69ae69800cac3899711
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed4161fcb4a0fd19b445f4117816dad5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_917aa8cd1c580542365adc5cf9582d9b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cad001636b5387e20105c4a572ddaa55 |
| publicationDate |
1998-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0632807-B1 |
| titleOfInvention |
Process for the production of cyclic esters from hydroxy acids and derivatives thereof |
| abstract |
Disclosed is a method for producing cyclic esters by the conversion of hydroxy carboxylic acids and their derivatives to their respective cyclic esters. Such cyclic esters, including lactide or glycolide, are particularly useful for producing polymers which can be used to make biodegradable materials, such as biodegradable packaging material. Various methods of cyclic ester production are disclosed, including liquid phase and vapor phase reactions. Also disclosed are various methods for recovering cyclic esters from product-containing streams. |
| priorityDate |
1992-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |