| abstract |
(57) [Summary] [Structure] An acrylic resin copolymer-based pressure-sensitive adhesive, characterized in that 10 to 20% by weight of a polymerizable monomer having an amide group in the molecule is added as one component of the copolymer. . [Effect] According to the present invention, it is possible to prevent the acetylcellulose film from being hydrolyzed even when exposed to high temperature and high humidity for a long time, and it is useful as an optical material. In particular, the durability of a polarizing plate or a phase difference plate using an acetyl cellulose-based film can be greatly improved. |