Composition for rigid gas permeable contact lenses
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United States of America Patent
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Nov 10, 1992
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N/A
app pub date -
Aug 5, 1991
filing date -
Aug 5, 1991
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Abstract
A copolymer for making contact lenses comprises, by weight, from about 5 to about 85 percent of a polymerizable fluoromonomer, and from about 5 to about 75 percent of a polymerizable hydrolyzable silicone monomer. A polymerizable hydrophilic monomer can also be included. Additionally, an initiator and a crosslinker are usually preferably employed, but the initiator is not needed when polymerization is aided by radiation from a radioactive source such as cobalt-60.
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