公开(公告)号：US11193067B2

公开(公告)日：2021-12-07

申请号：US16342981

申请日：2017-10-19

Applicant: JSR CORPORATION

Inventor： Takashi Okada ,  Yoshitaka Murakami ,  Ken-ichi Itou

IPC: C09K19/56 ,  C08F22/02 ,  C08F220/18 ,  C08F220/56

Abstract: According to the present invention, a liquid crystal aligning agent is configured to contain a polymer [P] which has a partial structure represented by formula (1) and comprises a photo-alignment group. In formula (1), each of R1 and R2 independently represents a hydrogen atom, a halogen atom or a monovalent organic group having one or more carbon atoms; and each of X1 and X2 independently represents —OH, —NH2 or a monovalent organic group having one or more carbon atoms, provided that at least one of X1 and X2 represents “—OR3” or “—NR3R4” (wherein each of R3 and R4 independently represents a hydrogen atom or a monovalent organic group having one or more carbon atoms).

公开(公告)号：US11130913B2

公开(公告)日：2021-09-28

申请号：US16342979

申请日：2017-10-19

Applicant: JSR CORPORATION

Inventor： Ken-ichi Itou ,  Yoshitaka Murakami ,  Youhei Nobe ,  Takashi Okada

IPC: C09K19/56 ,  C08L79/08 ,  C09K19/34 ,  C09K19/38

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.

公开(公告)号：US20200048556A1

公开(公告)日：2020-02-13

申请号：US16342982

申请日：2017-10-19

Applicant: JSR CORPORATION

Inventor： Yoshitaka Murakami ,  KEN-ICHI ITOU ,  TAKASHI OKADA

IPC: C09K19/56 ,  C09D179/08 ,  C09D7/20 ,  G02F1/1337

Abstract: A liquid crystal aligning agent which contains a polymer (A) and a polymer (B). Polymer (A): A polymer which has at least one structural unit U1 selected from the group consisting of structural units represented by formula (1) and structural units represented by formula (2), and a structural unit U2 derived from at least one monomer selected from the group consisting of styrene monomers and (meth)acrylic monomers. Polymer (B): At least one polymer selected from the group consisting of polyamic acids, polyamic acid esters and polyimides. In the formulae, R7 represents a monovalent organic group having one or more carbon atoms; R8 represents a monovalent organic group having one or more carbon atoms; and R9 represents a hydrogen atom or a monovalent organic group having one or more carbon atoms.