附黏着剂之树脂膜及使用该树脂膜之光学积层体;RESIN FILM WITH ADHESIVE AND OPTICAL LAMINATE USING THE SAME

摘要

本发明之课题在于提供一种即使使用容易变形之光学膜作为树脂膜，在严苛的环境下之耐久性亦优异之附黏着剂之树脂膜，以及将该附黏着剂之树脂膜贴合于液晶单元等之玻璃基板而成之光学积层体。本发明之解决手段为一种于树脂膜的表面设置由含有第一丙烯酸树脂之黏着剂组成物所形成之黏着剂层之附黏着剂之树脂膜，该第一丙烯酸树脂中，从所使用之单体的调配比率与单体每1分子之羰基的重量所求取之存在于丙烯酸树脂中之羰基的重量比率为24%以上。上述黏着剂层系可由含有(A)第一丙烯酸树脂100重量份、(B)异氰酸酯系交联剂0.1至1重量份、以及(C)矽烷化合物0.05至5重量份之黏着剂组成物所形成。;The present invention provides a resin film with adhesive in which an adhesive layer formed of an adhesive composition containing a first acrylic resin is provided on a surface of a resin film. As to the first acrylic acid resin, the weight ratio of carbonyl group existing in the acrylic acid resin, which is obtained from the formulating ratio of the monomer being used and the weight of the carbonyl group per molecular of the monomer, is 24% or more. The adhesive layer may be formed of an adhesive composition comprising (A) 100 part by weight of the acrylic acid resin, (B) 0.1 to 1 part by weight of an isocyanate-based crosslinker, and (C) 0.05 to 5 part by weight of a silane compound.