| 摘要 |
Disclosed is an adhesive composition for optical films which enables to suppress contamination at re-release or separation under severe conditions, while maintaining good durability and light leakage prevention. Specifically disclosed is an adhesive composition for optical films characterized by containing an acrylic polymer (A), an isocyanate crosslinking agent (B), a silane coupling agent (C), and if necessary a crosslinking accelerator (D). The acrylic polymer (A) is obtained by copolymerizing at least the following monomer components: (a1) an alkyl (meth)acrylate and/or an alkoxyalkyl (meth)acrylate; (a2) an aromatic ring-containing monomer; (a3) a hydroxyl group-containing monomer; and if necessary (a4) a carboxyl group-or amino group-containing monomer. The acrylic polymer (A) has a weight average molecular weight of 800,000-1,600,000, and the value (Mw/Mn) obtained by dividing the weight average molecular weight of the copolymer by the number average molecular weight thereof is 10-50. |
