Patent ID: 9404041
Filing Date: 2016-08-02
CPC Classification: C08G,C08J,C08L,C09K,G02F

Claim Text:
1. A liquid crystal alignment agent, comprising: a polymer (A); and a solvent (B), wherein the polymer (A) is obtained by reacting a mixture, and the mixture comprises a tetracarboxylic dianhydride component (a) and a diamine component (b), the diamine component (b) comprises a diamine compound (b-1) represented by formula (1) and a diamine compound (b-2) represented by formula (2), in formula (1), Y Y in formula (1-1), R R Z Z R a and R b each independently represent a fluorine atom or a methyl group, and h and i each independently represent 0, 1, or 2; a represents 0, 1, or 2; b, c, and d each independently represent an integer of 0 to 4; e, f, and g each independently represent an integer of 0 to 3, and e+f+g≧1; in formula (2), Y Y Y wherein m represents an integer of 1 to 5; Y j represents an integer of 1 to 4, wherein Y 4 and Y 5 are not simultaneously single bonds.