RIGID GAS PERMEABLE PREPOLYMER AND RIGID GAS PERMEABLE CONTACT LENS FORMED THEREFROM
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...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | 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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