Patent ID: 9513511
Filing Date: 2016-12-06
CPC Classification: C08G,C09K,G02F

Claim Text:
1. A liquid crystal alignment agent, comprising: a polymer composition (A), synthesized by reacting a mixture that includes a tetracarboxylic dianhydride component (a) and a diamine component (b); and a solvent (B); wherein the diamine component (b) includes at least one diamine compound (b-1) having a structure of formula (I), at least one diamine compound (b-2) having a structure of formula (II) and an other diamine compound (b-3), and a molar ratio of the diamine compound (b-1) having the structure of formula (I) to the diamine compound (b-2) having a structure of formula (II) is 0.3 to 2.5: