Patent ID: 11966120
Assignee: NISSAN CHEMICAL CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 4:
5. The liquid crystal light control element according to claim 1, wherein the liquid crystal aligning agent contains a polyimide precursor in which a tetracarboxylic acid of Formula [2] is used as a part of a raw material or a polyimide obtained by imidizing the polyimide precursor, as the polyimide precursor or the polyimide, or as another polyimide precursor or another polyimide:, wherein Z represents any one structure selected from Formula [2a] to Formula [2l]:, wherein ZA to ZD each independently represent a hydrogen atom, a methyl group, a chlorine atom, or a phenyl group and ZE and ZF each independently represent a hydrogen atom or a methyl group.