| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve adhesiveness between an alignment layer and a transparent support and/or an optically anisotropic layer. <P>SOLUTION: A method for producing an optical film having a transparent support, an alignment layer and an optically anisotropic layer is provided, the method including: an alignment layer-forming step of forming the alignment layer on the transparent support by imperfectly carrying a thermal crosslinking reaction of a composition for forming an alignment layer, wherein the composition contains at least one polymer compound having a repeating unit including a carboxyl group and at least one epoxy compound; and an optically anisotropic layer-forming step of forming the optically anisotropic layer on the alignment layer by carrying a curing reaction of a composition for forming the optically anisotropic layer containing at least one disk type liquid crystal compound. The epoxy compound has more than 2 of epoxy functional groups in one molecule and has an epoxy equivalent of not more than 170 g/eq. <P>COPYRIGHT: (C)2011,JPO&INPIT |
