http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0017512-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F226-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-54 |
| filingDate | 1980-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1984-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1984-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0017512-B1 |
| titleOfInvention | Polymeric materials, process for preparing them and shaped articles and contact lenses formed from them |
| abstract | Polymeric materials suitable for bio-medical applications, particularly in making contact lenses, are derived by reaction of the following monomers in the given proportions: (1) 20 to 40 mole % of a polymerisable amide which is an unsubstituted or substituted amide of a carboxylic acid containing olefinic unsaturation. (2) 25 to 55 mole % of an N-vinyl lactam, (3) 5 to 20 mole % of a polymerisable ester which is an ester of a carboxylic acid containing olefinic unsaturation. (4) 1 to 10 mole % of a polymerisable carboxylic acid containing olefinic unsaturation, (5) 3 to 10 mole % of a polymerisable hydrophobic vinyl monomer, the amounts of the monomers (1) to (5) totalling 100 mole % and the copolymer being crosslinked with a crosslinking agent. The polymeric materials of the invention may be machined to form contact lenses and subsequently hydrated to form a hydrogel which is suitable for use as an extended wear contact lens. |
| priorityDate | 1979-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 98.