Contact lens composition, article and method of manufacture
US4419505A · kind A · utility
20Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Jul 14, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F230/085
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A copolymer composition, specially adapted for use in fabricating a contact lens comprises a copolymer of comonomers which include about 1-95 parts by weight of hydroxy silane esters of acrylic or methacrylic acid and about 99-5 parts by weight of a C.sub.1 -C.sub.20 alkanol ester of acrylic or methacrylic acid. Contact lenses and contact lens blanks are formed of such copolymer by conventional techniques and also by injection molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.