| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical laminate which prevents occurrence of curl or damage, and has a high pencil hardness, a high scratch resistance, and excellent optical characteristics, and can prevent a marking from leaving trace when UV rays radiate a polarizing plate over a protective film having the marking thereon in a step of processing a polarizing plate. <P>SOLUTION: An optical laminate has a triacetyl cellulose substrate and a hard coat layer. The hard coat layer comprises a cured material of a hard coat layer composition containing a (meth)acrylic polymer and a polyfunctional monomer. The (meth)acrylic polymer is non-reactive and has an weight average molecular weight of 60,000 to 100,000, and a glass transition temperature of 100 to 120°C. The hard coat layer composition has a solid content ratio of the (meth)acrylic polymer to the polyfunctional monomer in the range from 0.5:9.5 to 3.0:7.0. <P>COPYRIGHT: (C)2012,JPO&INPIT |
