| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c379b0d1b49897f8d47533c391a78599 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-8158
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61L27-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4883 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F290-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-81
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H15-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F299-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H15-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F299-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-04 |
| filingDate |
1992-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d96694734b6d41725430b11c08bcda13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b2870d78983a4c04cfb698c7f7756dc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d01c3835a5d534ee95d3e2dd7d121e9b |
| publicationDate |
1993-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2071039-A1 |
| titleOfInvention |
Soft, high oxygen permeability ophthalmic lens |
| abstract |
A low water contact lens material having high 0 2 permeability, a lower water content and reduced polymer matrix size provides adequate O2 to the cornea, but does not wick water away from the eye nor allow protein or other tear components to penetrate and deposit in the lens. Such a lens is made by polymerizing and crosslinking a prepolymer which contains a cyclic polyol with polyalkylether segments containing curable segments. The cyclic polyols consist of alkoxylated glucose or sucrose which are then reacted with an isocyanate to produce an ultraviolet curable prepolymer. The prepolymer is then placed in a mold and polymerized by exposure to ultraviolet light. The free hydroxyl groups of the material react with a highly hydrophilic reagent to form covalent bonds thus making the surface of the material more wettable. |
| priorityDate |
1991-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |