| abstract |
(57) [Summary] [Object] To provide an ophthalmic lens material having excellent transparency, high oxygen permeability, and high mechanical strength. [Structure] A copolymer composed of a polysiloxane macromonomer having a polymerizable group bonded to a siloxane main chain through one or more urethane bonds and a copolymerization component containing alkyl (meth) acrylamide as a main component. Polymer, polysiloxane macromonomer and alkyl (meth) The blending ratio with acrylamide is 10:90 to 90:10 by weight. Is characterized in that. |