RIGID GAS PERMEABLE PREPOLYMER AND RIGID GAS PERMEABLE CONTACT LENS FORMED THEREFROM
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United States of America Patent
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Issued Date -
Oct 24, 2024
app pub date -
Mar 26, 2024
filing date -
Mar 26, 2024
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Abstract
A rigid gas permeable prepolymer comprising a reaction product of (a) a rigid gas permeable-forming prepolymer comprising (i) monomeric units derived from a bulky siloxane monomer containing an ethylenically unsaturated reactive end group, and (ii) monomeric units derived from a hydrophilic monomer having one or more reactive functionalities and an ethylenically unsaturated reactive end group, and (b) a monomer having a reactive functionality complementary to one of the one or more reactive functionalities of the hydrophilic monomer and a polymerizable ethylenically unsaturated reactive end group complementary to an ethylenically unsaturated reactive group of a rigid gas permeable contact lens-forming comonomer. Rigid gas permeable contact lenses formed from the rigid gas permeable prepolymers are also disclosed.
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