Patent ID: 9733519
Date: 2017-08-15
CPC Classifications: B32B,C08F,C08L,C09K,G02F

Claim:
1. A composition for forming a thermoset film having photo alignment properties, the composition comprising: a component (A) that is an acrylic copolymer having a photodimerizing moiety and a thermal cross-linking moiety, the acrylic copolymer being a copolymer of (i) at least one monomer selected from the group consisting of hydroxyl alkyl acrylate and hydroxyl alkyl methacrylate, and (ii) at least one monomer selected from the group consisting of monomers of formula (3) and monomers of formula (4): wherein: X X each of X each of X a component (B) that is a cross-linking agent selected from the group consisting of an alkoxymethylated glycoluril; an alkoxymethylated benzoguanamine; an alkoxymethylated melamine; a compound obtained by condensation of a melamine compound, a urea compound, a glycoluril compound, or a benzoguanamine compound in which a hydrogen atom of such an amino group is substituted by a methylol group or an alkoxymethyl group; and a polymer produced using acrylamide compounds or methacrylamide compounds that are substituted with a hydroxymethyl group or an alkoxymethyl group, wherein the composition is curable by heating at a temperature of 70 to 160° C. for 0.3 to 60 minutes to form said thermoset film having photo alignment properties, and the composition exhibits photo alignment properties after exposure to perpendicular irradiation with linear polarization at 313 nm of 30 mJ/cm