| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dd0d461ea5dbacb4fec8075a48fc8b3b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1acf1fb83641b187259b05ae504999d0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F297-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L24-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L51-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L24-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F297-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61L27-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L51-08 |
| filingDate |
2001-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_356c54345748c921edd32a0fa883d7e9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a27f0e5a219dfdd1478868888d1aa1ee |
| publicationDate |
2003-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1272562-A1 |
| titleOfInvention |
Environment responsive gelling copolymer |
| abstract |
The invention relates to a gelable copolymer composition comprising a copolymer in a solvent. The copolymer has the structure A(B)n, wherein the core (A) is soluble in the solvent, the arms (B) are convertible between soluble and insoluble in the solent depending on an environmental condition, and n > 1. The composition forms a gel under environmental conditions in which B is insoluble, through formation of B aggregates. Block copolymers comprising polyethylene glycol (PEG) and poly(N-isopropylacrylamide) (PNIPAAm) having a liquid form at ambient temperature under aqueous conditions and a gel form at body temperature are disclosed. Copolymer compositions according to the invention can be used to form in situ implants useful in slow-release formulations of biologically active molecules. |
| priorityDate |
2000-03-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |