Patent ID: 6020445
Filing Date: 2000-02-01
Classification: C08F,G02B

Abstract:
A reaction mixture comprising one or more olefinic silicone-containing monomers, one or more hydrophilic monomers, and a diluent comprising the following structure: ##STR11## where R, R' and R"" are independently selected from H, or unsubstituted, linear, branched or cyclic monovalent alkyl groups having 1 to 7 carbons with the proviso that no more than one of R, R' or R"" is H; and wherein said hydrophilic monomer is selected from the group consisting of N,N-dimiethyl acrylamide (DMA), 2-hydroxyethyl methacrylate (HEMA), glycerol methylacrylate, 2-hydroxyethyl methacrylamide, polyethyleneglycol, monomethacrylate, methacrylic acid, acrylic acid, N-vinyl prrolidone (NVP), N-vinyl-N-methyl acetamide, N-viny-N-ethyl acetamide, N-vinyl-N-methyl acctamide, N-vinyl-N-ethyl fomiamide and N-vinyl formamide; said reaction mixture to be used to form a contact lens.