http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2164940-C
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D11-00038 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F285-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F287-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L53-00 |
| filingDate | 1994-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a5e40b78d2c572ccb516bfbf762ee51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bb658788ef869947fcef6133248de99 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de2917864813e2ea8768a71c9e738532 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_04ee0aed1e4abc0d5739df6f61e73064 |
| publicationDate | 2001-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2164940-C |
| titleOfInvention | Ocular lens composition and method of formation |
| abstract | A gas permeable (GP) ocular lens composition and method of formation arc disclosed wherein 98-70 % by wgt, of a first polymer component, selected for desired characteristics including gas permeability, and 2-30 % by wgt of a second polymer component, selected for basic GP lens characteristics such as rigidity, structural stabilty and desired refractive index, are combined in an interpenetrating polymer network (IPN) structure forming a thermoplastic composition having optical clarity/compatibility and facilitating low cost formation by molding or thermoforming. The first polymer component is a block co-polymer of first and second monomers. The resulting lens composition has a flexure modulus in the range of about 2.000-50,000 psi; preferably about 5,000-40,000 psi: and more preferably about 20,000-40,000 psi. In one embodiment, the lens comprises a central portion and an annular portion of different characteristics. In another cosmetic embodiment, a film with an image of an iris is encapsulated in the composition. |
| priorityDate | 1993-06-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 66.