Patent ID: 7585900

Claim:
A polymeric ophthalmic or otorhinolaryngological device material comprising a) a principal device-forming monomer which is an aryl acrylic hydrophobic monomer 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 ] n ; C is (CH 2 ) w ; m is 2-6; n 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 or halogen, 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 —CH 3 , —CH 2 CH 3 , —CH 2 CH 2 CH 2 CH 3 , CH 2 CH 2 CH 2 CH 3 , —C 6 H 5 , —CH 2 C 6 H 5 , —CH 2 CH 2 C 6 H 5 , —CH 2 CH 2 CH 2 C 6 H 5 , or —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 principal device-forming monomer is present in an amount of at least about 75% (w/w), wherein the dimethylacryloxypropyl-terminated polydimethylsiloxane macromer is present in an amount from 0.5-3.9% (w/w), wherein the cross-linking monomer is present in an amount of about 0.01-17% (w/w).