Optical film, retardation plate, elliptica polarizing plate, liquid crystal display device and compound

Patent metadata

Field	Value
Publication number	US-9481658-B2
Application number	US-201414549966-A
Country	US
Kind code	B2
Filing date	Nov 21, 2014
Priority date	Mar 19, 2009
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

An optical film including at least one compound represented by formula (1) is disclosed. In the formula, Y 11 , Y 12 and Y 13 each independently represent methine or a nitrogen atom; R 11 , R 12 and R 13 each independently represent formula (A), (B) or (C) or a hydrogen atom, provided that at least two of R 11 , R 12 and R 13 each independently represent formula (A), (B) or (C). In the formulae, L 12 , L 22 , and L 32 each represent a 5-membered heterocyclic group.

First claim

What is claimed is:

1. A compound represented by formula (1 b):

where L 41 represents formula (D), (E) or (F)

X 1 , X 2 and X 3 each independently represent an oxygen atom, a sulfur atom, methylene or imino; Y 1 represents amidoxime; Y 2 represents —COOH, —OH, C 1-4 alkyl, a halogen atom or a hydrogen atom; L 42 represents an alkylene or alkenylene, provided that one CH 2 or two or more CH 2 not adjacent to each other in the alkylene or alkenylene may be independently replaced with at least one selected from the group consisting of —O—, —COO—, —OCO—, —OCOO—, —CO—, —S—, —SO 2 —, —NR—, —NRSO 2 — and —SO 2 NR— where R represents a hydrogen atom or a C 1-4 alkyl, or provided that one hydrogen atom or two or more hydrogen atoms in the alkylene or the alkenylene may be replaced with one halogen atom or two or more halogen atoms.

2. The compound according to claim 1 , which is represented by any
one of the following formulae (1 b-1), (1 b-2) and (1 b-3);

in the formulae, A 41 and A 42 represent a nitrogen atom; X 4 each represents an oxygen atom, a sulfur atom, methylene or imino; Y 1 each represents amidoxime; Y 2 each represents COOH, OH, C 1-4 alkyl, a halogen atom or a hydrogen atom; L 41 each represents an alkylene or alkenylene, provided that one CH 2 or two or more CH 2 not adjacent to each other in the alkylene or alkenylene may be independently replaced with at least one selected from the group consisting of —O—, —COO—, —OCO—, —OCOO—, —CO—, —S—, —SO 2 —, —NR—, —NRSO 2 — and —SO 2 NR— where R represents a hydrogen atom or a C 1-4 alkyl, or provided that one hydrogen atom or two or more hydrogen atoms in the alkylene or the alkenylene may be replaced with one halogen atom or two or more halogen atoms.

Assignees

• Fujifilm Corp

Inventors

• Hamasaki Ryo
• Nishikawa Hideyuki
• Takahashi Makoto
• Miyahara Takashi
• Motoki Masuji
• Tsukase Masaaki

Classifications

• C09K19/348

  containing at least two nitrogen atoms · CPC title

• C07D271/06 Primary

  1,2,4-Oxadiazoles; Hydrogenated 1,2,4-oxadiazoles · CPC title

• Y10T428/1036

  Cross-Sectional Technologies · mapped topic

• Y10T428/10

  Cross-Sectional Technologies · mapped topic

• G02B5/3033

  in the form of a thin sheet or foil, e.g. Polaroid · CPC title