Patent ID: 8173720
Filing Date: 2012-05-08
Classification: C08G,C08L,G02B

Abstract:
1. A transparent gel comprising an interpenetrating polymer network of a copolymer and a hydrophilic polymer, the copolymer having a polysiloxane structure and a polycarbonate structure and the hydrophilic polymer being obtained by polymerizing a hydrophilic monomer and a cross linking agent; wherein the above copolymer having a polysiloxane structure and a polycarbonate structure is derived from a compound shown by the general formula (A) and a compound shown by the general formula (B) and a compound forming a carbonic acid ester, general formula (A): (wherein R (wherein R general formula (B): (wherein R wherein the above hydrophilic monomer is N-vinyl pyrrolidone, N,N-dimethylacrylamide and/or N-methyl-3-methylidene pyrrolidone; and wherein a ratio of said copolymer to said hydrophilic monomer is 5:95 to 40:60 by weight.