Patent ID: 6204306
Filing Date: 2001-03-20
Classification: C07C,C08F,C08G,G02B,G03F

Abstract:
A contact lens comprising an oligomer or polymer having H-active groups --OH and/or --NH-- bonded to the oligomer or polymer backbone, optionally via a bridge group, or having H-active --NH-- groups bonded in the oligomer or polymer backbone, the H atoms of which H-active groups are partly or completely substituted by a radical of formula IV ##STR58##wherein X is bivalent --O--, --NH--, --S--, alkylene having up to 8 carbon atoms or ##STR59##Y is a direct bond or --O--(CH.sub.2).sub.n -- wherein n is an integer from 1 to 6 and the terminal CH.sub.2 group of which is linked to the adjacent X in formula (I);R is H, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxy, C.sub.1 -C.sub.12 alkylNH- or --NR.sub.1A R.sub.1B wherein R.sub.1A is alkyl having up to 8 carbon atoms and R.sub.1B is H or alkyl having up to 8 carbon atoms;R.sub.1 is linear or branched alkyl having up to 8 carbon atoms, alkenyl having from 2 to 8 carbon atoms or aryl-alkyl having up to 8 carbon atoms in the alkyl moiety;R.sub.2 independently of R.sub.1 has the same definitions as R.sub.1 or is aryl, orR.sub.1 and R.sub.2 together are --(CH.sub.2).sub.m -- wherein m is an integer from 2 to 6;R.sub.3 and R.sub.4 are each independently of the other linear orbranched alkyl having up to 8 carbon atoms that may be substituted by C.sub.1 -C.sub.4 alkoxy, or aryl-alkyl having up to 8 carbon atoms in the alkyl moiety or alkenyl having from 2 to 8 carbon atoms; orR.sub.3 and R.sub.4 together are --(CH.sub.2).sub.z --Y--(CH.sub.2).sub.z -- wherein the two valences are each attached to the N-atom, Y.sub.1 is a direct bond, --O--, --S-- or --NR.sub.1B --, and R.sub.1B is H or alkyl having up to 8 carbon atoms and z is independently of the other an integer from 2 to 4; andR.sub.5 is branched C.sub.3 -C.sub.18 alkylene, unsubstituted or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.6 -C.sub.10 arylene, or unsubstituted or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.7 -C.sub.18 aralkylene, unsubstituted or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.13 -C.sub.24 -arylenealkylenearylene, unsubstituted or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.3 -C.sub.8 -cycloalkylene, unsubstituted or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted C.sub.3 -C.sub.8 cycloalkylene-C.sub.y H.sub.2y -- or unsubstituted or C.sub.1 -C.sub.4 alkyl- or C.sub.1 -C.sub.4 alkoxy-substituted --C.sub.y H.sub.2y --(C.sub.3 -C.sub.8 -cycloalkylene)-C.sub.y H.sub.2y --, wherein y is an integer from 1 to 6.