Provided is a PSA composition for forming a PSA comprising a (meth)acrylic polymer, comprising, as monomeric components constituting the (meth)acrylic polymer: (A) a C2-18 alkyl (meth)acrylate, (B) an alicyclic monomer, and (C) a monomer having at least either a hydroxyl group or a carboxyl group. The average number of carbons of alkyl group in the (A) is 8 or less. The monomeric components comprise the (C) at 3% by weight or greater while the weights Wb and Wc of the (B) and (C) satisfy a relationship 0.8≤Wb/Wc.
本发明提供了一种 P
SA 组合物,用于形成由(甲基)
丙烯酸聚合物组成的 P
SA,其作为构成(甲基)
丙烯酸聚合物的单体成分包括:(A) C2-18 烷基(甲基)
丙烯酸酯,(B) 脂环族单体,以及 (C) 至少具有羟基或羧基的单体。(A)中烷基的平均碳数为 8 或更少。单体成分中(C)的重量百分比为 3%或更高,而(B)和(C)的重量 Wb 和 Wc 满足 0.8≤Wb/Wc 的关系。