Patent ID: 8066917
Filing Date: 2011-11-29
Classification: C08F,C08G,C08L,C09K

Abstract:
1. A photochromic curable composition comprising: [A] not less than 0.1 part and less than 5.0 parts by mass of a radically polymerizable monomer having an epoxy group represented by the following formula (1): wherein R  and “a” and “b” are each a number of 0 to 20 as an average value; [B] 1.0 to 15.0 parts by mass of a polyfunctional radically polymerizable monomer represented by the following formula (2): wherein R [C] 1.0 to 30.0 parts by mass of at least one di(meth)acrylate monomer selected from the group consisting of a di(meth)acrylate monomer represented by the following formula (3), di(meth)acrylate monomer represented by the following formula (4) and urethane di(meth)acrylate monomer having a (meth)acryl equivalent of not less than 600: wherein R wherein R [D] more than 50.0 parts and not more than 97.9 parts by mass of a (meth)acrylate monomer except the above components [A] to [C] and/or a thio(meth)acrylate monomer, wherein the total amount of the components [A], [B], [C] and [D] is 100 parts by mass; and [E] 0.001 to 10 parts by mass of a photochromic compound based on 100 parts by mass of the total of all the polymerizable monomers.