| 摘要 |
PROBLEM TO BE SOLVED: To obtain an adhesive that suppresses voids of an optical laminate, delamination between a glass substrate and an adhesive layer and foaming in an adhesive layer and has durability of causing no change in appearance even by repeated heating and cooling. SOLUTION: In the adhesive obtained by blending a composition comprising (1) an acrylic resin composed of (a) a structural unit derived from a (meth)acrylic acid ester and having 50,000-500,000 weight-average molecular weight and (2) an acrylic resin composed of (a) the structural unit as a main component and (b) a structural unit derived from a monomer containing a polar functional group and an olefinic double bond in the molecule and having 1,000,000-1,500,000 weight-average molecular weight of the resin and the molecular weight distribution (Mw/Mn) of the resin of≤5 with a crosslinking agent, the adhesive comprises 10-50 parts wt. of (1) the acrylic resin based on 100 parts wt. of the total of (1) the acrylic resin and (2) the acrylic resin and has 10-50 wt.% gel fraction. COPYRIGHT: (C)2006,JPO&NCIPI |
