(Meth)acrylamide monomers containing hydroxy and silicone functionalities
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsDiana Zanini, Xiaoping Lin, Frank Mclock
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Abstract
The present invention relates to (meth)acrylamide monomers of the formula: wherein R is H or CH3, R1 is selected from H, substituted and unsubstituted alkyl groups having 1 to 8 carbon atoms, substituted and unsubstituted benzene and toluene groups and and R2, R3 and R4 are independently selected from alkyl groups having 1 to 8 carbon atoms, substituted and unsubstituted benzene and toluene groups, and —OSiR5R6R7 wherein R5, R6 and R7 are independently selected from the group consisting of straight or branched alkyl groups having 1 to 4 carbon atoms. Polymers made therefrom are also disclosed.
Claims20
A polymer formed from a reaction mixture comprising at least one hydrophilic monomer, at least one silicone containing component and at least one (meth)acrylamide monomer of the formula:
- wherein R is H or CH3, R1 is selected from H, substituted and unsubstituted alkyl groups having 1 to 8 carbon atoms, substituted and unsubstituted benzene and toluene groups and
- and R2, R3 and R4 are independently selected from alkyl groups having 1 to 8 carbon atoms, substituted and unsubstituted benzene and toluene groups, and OSiR5R6R7 wherein R5, R6 and R7 are independently selected from the group consisting of straight or branched alkyl groups having 1 to 4 carbon atoms and wherein said polymer has a water content of at least 20%.
Dependencies are inferred from the claim text.