公开(公告)号：US11827727B2

公开(公告)日：2023-11-28

申请号：US18055660

申请日：2022-11-15

Applicant: FUJIFILM Corporation

Inventor： Soichiro Watanabe ,  Yutaka Nozoe ,  Takashi Iizumi ,  Akio Tamura ,  Tomoaki Yokota ,  Keisuke Yoshimasa ,  Ayako Matsumoto

IPC: C08F220/58 ,  C08L33/24 ,  C09K19/54 ,  G02B5/30 ,  B32B27/30 ,  C09K19/56

CPC classification number: C08F220/585 ,  C08L33/24 ,  C09K19/542 ,  G02B5/3016 ,  B32B27/30 ,  B32B2457/20 ,  B32B2457/202 ,  B32B2457/206 ,  C09K19/56 ,  C09K2019/548 ,  C09K2323/02 ,  C09K2323/025 ,  C09K2323/03 ,  C09K2323/035

Abstract: A photo-alignment polymer has a repeating unit represented by Formula (1), in Formula (1), R1 represents a hydrogen atom or a substituent, X represents —O—, —S—, or —NR2—, in which R2 represents a hydrogen atom or a substituent, L1 represents a single bond or a divalent linking group, P represents a photo-aligned group, and A represents an acid-cleavage group which is decomposed by an action of acid to produce a polar group

公开(公告)号：US11692050B2

公开(公告)日：2023-07-04

申请号：US17331647

申请日：2021-05-27

Applicant: FUJIFILM Corporation

Inventor： Yutaka Nozoe ,  Takashi Iizumi ,  Soichiro Watanabe ,  Hideyuki Nishikawa ,  Kazushige Nakagawa ,  Kunihiro Atsumi

IPC: G02B5/30 ,  C08F220/30 ,  C08F220/32 ,  C08F265/06 ,  H10K50/86

CPC classification number: C08F220/303 ,  C08F220/32 ,  C08F265/06 ,  G02B5/3016 ,  C09K2323/02 ,  C09K2323/023 ,  H10K50/86

Abstract: An object of the invention is to provide a photo-alignment copolymer capable of improving upper layer coatability after layer formation, a binder composition, a binder layer, an optical laminate, and an image display device. A photo-alignment copolymer according to the embodiment of the invention has a repeating unit A including a photo-alignment group, a repeating unit B including a crosslinkable group which causes a crosslinking reaction by the action of at least one selected from the group consisting of light, heat, an acid, and a base, and a repeating unit C including a cleaving group which decomposes by the action of at least one selected from the group consisting of light, heat, an acid, and a base to produce a polar group, and the repeating unit C has the cleaving group on a side chain, and has a group of atoms which is provided on a side closer to a terminal than the cleaving group on the side chain to be able to unevenly distribute the photo-alignment copolymer on an air interface side.