Soft ocular lens material
US4954586A · kind A · utility
199Cited by
2References
11Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 3, 1990 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Jan 3, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A soft ocular lens material is formed of a copolymer consisting essentially of: PA1 (A) from 5 to 70 parts by weight of a fluorine containing (meth)acrylate; PA1 (B) from 5 to 60 parts by weight of an alkyl (meth)acrylate; PA1 (C) from 3 to 45 parts by weight of a polysiloxane macromonomer having pllymerizable groups at both terminals; and PA1 (D) from 3 to 40 parts by weight of a polysiloxane macromonomer having polymerizable groups bonded via one or two urethane bonds to the siloxane main chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.