Patent ID: 7122226
Filing Date: 2006-10-17
Classification: C09K

Abstract:
1. A liquid crystal aligning agent, comprising: one polymer selected from the group consisting of a polyamic acid and an imidized polymer of the polyamic acid, and an organic solvent in which said one polymer is dissolved, wherein said polymer has both of the following structures (1) and (2): (1) it has at least one structure selected from the group consisting of structures represented by the following formulas (1) to (10); and (2) it has at least one structure selected from the group consisting of structures represented by the following formulas (a) to (z): wherein R wherein A is a phenylene group or single bond, X and Y are each independently a divalent group selected from the group consisting of —O—, —CO—, —COO—, —OCO—, —NHCO—, —CONH—, —S—, —Ar—Ar—CH wherein X and Y are each independently a divalent group selected from the group consisting of —O—, —CO—, —COO—, —OCO—, —NHCO—, —CONH—, —S—, —Ar—Ar—CH wherein said organic solvent is selected from the group consisting of γ-butyrolactam, N,N-dimethylformamide, N,N-dimethylacetamide, 4-hydroxy-4-methyl-2-pentanone, ethylene glycol monomethyl ether, butyl lactate, butyl acetate, methyl methoxy propionate, ethyl ethoxy propionate, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol-n-propyl ether, ethylene glycol-i-propyl ether, ethylene glycol-n-butyl ether, ethylene glycol dimethyl ether, ethylene glycol ethyl ether acetate, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monomethyl ether acetate, and diethylene glycol monoethyl ether acetate.