Hydrogel with internal wetting agent
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsAnnie C. Maiden, Douglas G. Vanderlaan, David C. Turner, Robert N. Love, James D. Ford, Frank F. Molock, Robert B. Steffen, Gregory A. Hill, Azaam Alli, Kevin P. McCabe
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Abstract
A wettable silicone hydrogel made by including a high molecular weight hydrophilic polymer into the silicone hydrogel monomer mix is presented. The hydrophilic polymer is entrapped in the hydrogel with little or no covalent bonding between it and the hydrogel matrix.
Claims32
A wettable silicone hydrogel comprising the reaction product of
- (a) a silicone hydrogel monomer mix, and
- (b) a high molecular weight hydrophilic polymer wherein said hydrophilic polymer is entrapped in said silicone hydrogel.
An ophthalmic lens prepared by adding a high molecular weight hydrophilic polymer to a silicone hydrogel monomer mix and said hydrophilic polymer is entrapped in the hydrogel formed from said silicone hydrogel monomer mix.
A method of making a silicone hydrogel comprising:
- a) combining a silicone hydrogel monomer mix with a high molecular weight hydrophilic polymer under polymerization conditions, and
- b) recovering a silicone hydrogel with said hydrophilic polymer entrapped therein.
Dependencies are inferred from the claim text.