| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mold-releasing agent composition excellent in adhesiveness to plastic substrates without deteriorating the transparency of lens resins and in mold releasability from molds, and good in appearance after high temperature/high humidity tests. <P>SOLUTION: The ultraviolet ray-curable resin composition for molding optical parts is characterized by including an ultraviolet ray-curable resin (A) selected from the group consisting of polyester (meth)acrylates (A1), epoxy (meth)acrylates (A2) and urethane (meth)acrylates (A3) and having a number-average molecular weight of 1,000-50,000, a (meth)acrylate (B) having a number-average molecular weight of 86-900, and a mold releasing property-imparting agent (C) as essential components, wherein the mold releasing property-imparting agent (C) is a salt of a phosphate ester (a) with a tertiary amine (b) and contains at least one (meth)acryloyl group. <P>COPYRIGHT: (C)2013,JPO&INPIT |
