| 摘要 |
<p>A pressure-sensitive adhesive composition for polarizers which comes to have excellent durability and the excellent effect of preventing light from leaking, without using high-energy light beams. The pressure-sensitive adhesive composition for polarizers is characterized by comprising ingredients (A) to (C) and having a gel content of 91% or higher: (A) an acrylic polymer which is obtained by copolymerizing at least the following monomer ingredients (a1) to (a3) and has a weight-average molecular weight of 500,000-2,000,000 and a ratio of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn), (Mw/Mn), of 8 or lower 100 parts by weight (a1) an alkyl (meth)acrylate 45-94.9 mass% (a2) a carboxylated monomer 0.1-5 mass% (a3) a benzene-ring-containing monomer 5-50 mass%; (B) a tolylene diisocyanate-based crosslinking agent 4-12 parts by weight; and (C) a silane coupling agent having reactivity with a carboxy group 0.05-1 part by weight, the amount of the monomer (a3) being at least 5 times by mole the amount of the tolylene diisocyanate-based crosslinking agent.</p> |
