| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e7adbac0cfee713b5c67b9c0f26b5a5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K5-09 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-823
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-85
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K5-09 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-85 |
| filingDate |
2018-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f713e35be50af95c6c935ecd59e0cab6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_295ed75e84970792d8de6b6c1de65fba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_220351492d84a2929206af97b23ceeb6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d8d7baffddf075203db718f9dc6a4aa |
| publicationDate |
2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11261293-B2 |
| titleOfInvention |
Resorbable polymer purification process |
| abstract |
The present invention is directed to an improved purification process using additive and activated carbon for purifying resorbable polymers suitable for industrial manufacturing. The metal catalyst concentration in the purified resorbable polymers of this invention is preferably less than 1 ppm. The method can be used to obtain high molecular weight polymers that are substantially metal free. |
| priorityDate |
2017-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |