Patent ID: 8058323

Claim:
A polymeric ophthalmic or otorhinolaryngological device material comprising a) a total of at least about 75% (w/w) of two 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 NRâ€², provided that if Y is O, S, or NRâ€², then B is (CH 2 ) m ; Râ€² is H, CH 3 , C n â€²H 2nâ€²+1 , iso-OC 3 H 7 ,C 6 H 5 , or CH 2 C 6 H 5 ; w is 0-6, provided that m+wâ‰¦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; nâ€²is 1-10; b) a dimethylacryloxypropyl-terminated polydimethylsiloxane macromer in an amount effective to reduce the tack of the polymeric ophthalmic or otorhinolaryngological device material, wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macromer has the formula wherein R 1 and R 2 are independently â€”CH 3 , â€”CH 2 CH 3 , â€”CH 2 CH 2 CH 2 CH 3 , CH 2 CH 2 CH 2 CH 3 , â€”C 6 H 5 , â€”CH 2 C 6 H 5 , â€”CH 2 CH 2 C 6 H 5 , â€”CH 2 CH 2 CH 2 C 6 H 5 , or â€”CH 2 CH 2 CH 2 CH 2 C 6 H 5 ; R 3 is H, CH 3 , or CH 2 CH 3 ; z is 2-11; and x indicates the number of repeating units and is such that the macromer has a molecular weight of about 300-about 3500; and c) a cross-linking monomer; wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macormer is present in an amount from 0.5 -3.9% (w/w).