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US 11,130,913 B2Granted
Liquid crystal alignment agent, liquid crystal alignment film, liquid crystal element, and polymer
AssigneeJsr Corporation
InventorsKen-ichi Itou, Yoshitaka Murakami, Youhei Nobe, Takashi Okada
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Abstract
Provided is a liquid crystal alignment agent that makes it possible to obtain a liquid crystal alignment film having a superior balance among solvent resistance, liquid crystal alignment properties, and voltage holding ratio. The liquid crystal alignment agent contains a polymer [P] including: at least one ring structure of an oxetane ring and an oxirane ring; (B) a functional group that reacts with at least one of the oxetane ring and the oxirane ring by heating; and (C) an optically aligning group.
Claims8
A liquid crystal alignment agent, comprising a polymer [P],
- the polymer [P] comprising:
- at least one ring structure (A) of an oxetane ring and an oxirane ring;
- a functional group (B) that reacts with at least one of the oxetane ring and the oxirane ring by heating;
- and
- an optically aligning group (C),
- wherein the polymer [P] is at least one kind selected from the group consisting of a maleimide polymer and a styrene-maleimide polymer, and
- the functional group (B) is at least one kind selected from the group consisting of a carboxyl group and a protected carboxyl group.
4 more elements
Dependencies are inferred from the claim text.