| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b0b4c5bf459aee3b96c6c7e98b0bc5e0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8973743e919254e72cd52560992e0008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1156bb0732d51d7efabbf21f71e2ff9e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ca6955d9a550c473765e51a2b346db2d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0a9a40253f19cb0f4d0a9088655148bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5e950ffd42bc04800e74999459b96fb6 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P35-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P3-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P37-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D323-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D323-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 |
| filingDate |
2000-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3aba3e7b347a181ba9d6d54ef8689e65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_62909453a130f3ab527c9ee263a0708f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc75288c1ec5a015bd6a163b817d0d62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4f594efebf14c24eed3cea55166f2f1 |
| publicationDate |
2001-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-0121613-A1 |
| titleOfInvention |
Process for the preparation of cyclic lactic acid oligomers |
| abstract |
A process for the preparation of cyclic lactic acid oligomers, which comprises (i) the first heating step of condensing lactic acid through dehydration by heating under such conditions of pressure and temperature that by-product water can be distilled away while avoiding the distillation-off of lactide, and (ii) the second heating step of lowering the pressure of the resulting reaction system to 100mmHg or below at a temperature higher than that of the first step under such conditions of pressure and temperature that by-product water can be distilled away while avoiding the distillation-off of lactide, and further continuing the reaction under the resulting lowered pressure by heating to form a condensate of lactic acid; and cyclic lactic acid oligomers prepared by the process. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6825314-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004108698-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004108654-A1 |
| priorityDate |
1999-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |