Patent ID: 7714039

Claim:
A polymeric ophthalmic or otorhinolaryngological device material comprising a) a total of at least about 75% (w/w) of one or more aryl acrylic hydrophobic monomers of the formula wherein: A is H, CH 3 , CH 2 CH 3 , or CH 2 OH; B is (CH 2 ) m or [O(CH 2 ) 2 ] z ; C is (CH 2 ) w ; m is 1-6; z is 1-10; Y is nothing, O, S, or NR′, provided that if Y is O, S, or NR′, then B is (CH 2 ) m ; R′ is H, CH 3 , C n′ H 2n′+1 (n′=1-10), iso-OC 3 H 7 , C 6 H 5 , or CH 2 C 6 H 5 ; w is 0-6, provided that m+w≦8; and D is H, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 6 H 5 , CH 2 C 6 H 5 , Br, Cl, F, or I; b) a methacrylate-terminated polystyrene macromer in an amount effective to reduce the tack of the polymeric ophthalmic or otorhinolaryngological device material, wherein the methacrylate-terminated polystyrene macromer has the formula R is CH 3 —, CH 3 CH 2 —, CH 3 CH 3 CH 2 —, CH 3 CH 2 CH 2 CH 2 —, or CH 3 CH 2 CH(CH 3 )—; and n is the number of repeating units such that the methacrylate-terminated polystyrene has a molecular weight (M n ) of 5,000-25,000, wherein the methacrylate-terminated polystyrene macromer is present in an amount from 0.5-5% (w/w); and c) a cross-linking monomer.