Polysiloxane with cycloalkyl modifier composition and biomedical devices
First Claim
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1. A shaped article suitable for use in biomedical applications being a polymer formed by polymerizing (a) one or more polysiloxane monomers α
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terminally bonded through divalent hydrocarbon groups to an activated unsaturated group with (b) a cycloalkyl modulus modifier and (c) a tear film stabilizer to form a crosslinked three-dimensional polymeric network.
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Abstract
Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with cycloalkyl modulus modifiers and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.
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Citations
24 Claims
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1. A shaped article suitable for use in biomedical applications being a polymer formed by polymerizing (a) one or more polysiloxane monomers α
- ,ω
terminally bonded through divalent hydrocarbon groups to an activated unsaturated group with (b) a cycloalkyl modulus modifier and (c) a tear film stabilizer to form a crosslinked three-dimensional polymeric network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification