| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive composition which has excellent cohesion and suppresses peeling and light leakage attributed to the generation of residual stress when used for a heat shrinkable optical film, particularly for a polarizing plate stacked body. <P>SOLUTION: The pressure-sensitive adhesive composition contains a block resin which is obtained by polymerizing ethylenically unsaturated monomers including an ethylenically unsaturated monomer (A) having a hydroxyl group, and has a hydroxyl value of 0.3-30 mgKOH/g and a structure represented by [X]-[Y]-[Z], wherein the blocks [X] and [Z] of the block resin are blocks each independently having a glass transition temperature (Tg) of ≥10°C, the block [Y] is a block having a glass transition temperature (Tg) of ≤-10°C, and weight percentages of the blocks [X], [Y] and [Z] are 3-30 wt.%, 50-94 wt.% and 3-40 wt%, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT |
