To provide a pressure-sensitive adhesive for an optical film, whose layer does not cause bubbling and exfoliation from a polarizing plate even under a heating or moistening and heating condition, and whose layer relaxes a stress concentration generated by elongation and contraction of a polarizing plate and generates no light-leaking phenomenon on a liquid crystal display.
The pressure-sensitive adhesive for an optical film includes an acrylic copolymer (A) and an isocyanate compound (B), wherein the acrylic copolymer (A) is obtained by copolymerizing 0.01 to 0.5 pt.wt of a monomer (a-1) having a hydroxyl group and another monomer (a-2), and a functional group of the isocyanate compound (B) is ≥0.5 mol and ≤300 mol with respect to 1 mol of the hydroxyl group of the acrylic copolymer (A).
TAKAHASHI MASAKATSU
MASHITA YUKIFUMI
YOSHIDA MITSUO
TAKEUCHI NAOKI
Next Patent: CURABLE SILICONE COMPOSITION AND SILICONE RESIN CURED PRODUCT