Photochromic compound, photochromic article and eyeglasses

Patent metadata

Field	Value
Publication number	US-2023399563-A1
Application number	US-202318238193-A
Country	US
Kind code	A1
Filing date	Aug 25, 2023
Priority date	Mar 31, 2021
Publication date	Dec 14, 2023
Grant date	—

Abstract

The photochromic compound is represented by the following general formula (1):

wherein, X denotes an oxygen atom or a nitrogen atom unsubstituted or substituted by a substituent selected from the following Y 1 group:
Y 1 group: —R 1 , -A 1 (B 1 ) l (A 2 ) m (B 2 ) n R 2 , -A 3 A 4 , -A 5 R 3
R 1 denotes a cyano group or the like,
R 2 denotes an alkyl group or the like,
R 3 denotes a halogen atom or the like,
A 1 , A 2 , A 3 , and A 5 each independently denote an alkylene group or the like,
A 4 denotes a naphthyl group which may be substituted,
B 1 and B 2 each independently denote any one of the divalent groups selected from the following group:

l, m, and n are each independently 0 or 1, provided that n is 0 if m is 0,
Y 2 denotes a hydrogen atom or the like,
R denotes a hydrogen atom or the like,

denotes a norbornylidene group or the like.

First claim

What is claimed is:

1 . A photochromic compound represented by the following general formula (1):

wherein, in the general formula (1),
X denotes an oxygen atom or a nitrogen atom unsubstituted or substituted by a substituent selected from the following Y 1 group:
Y 1 group: —R 1 , -A 1 (B 1 ) l (A 2 ) m (B 2 ) n R 2 , -A 3 A 4 , -A 5 R 3
R 1 denotes a cyano group, or an alkyl group or an aryl group which may each be substituted,
R 2 denotes an alkyl group, a naphthyl group, or a naphthylalkyl group which may each be substituted,
R 3 denotes a halogen atom, a cyano group, or a nitro group,
A 1 , A 2 , A 3 , and A 5 each independently denote an alkylene group, an alkylidene group,
a cycloalkylene group, or an alkylcycloalkane-diyl group which may each be substituted,
A 4 denotes a naphthyl group which may be substituted,
B 1 and B 2 each independently denote any one of the divalent groups selected from the following group:

l, m, and n are each independently 0 or 1, provided that n is 0 if m is 0,
Y 2 denotes a hydrogen atom, or a substituent selected from the above Y 1 group,
R denotes a hydrogen atom, a trifluoromethyl group, or a cyclopropyl group which may be substituted,

denotes a norbornylidene group, a bicyclo[3.3.1]nonylidene group, or an adamantylidene group which may each be substituted.

2 . The photochromic compound according to claim 1 ,
wherein X in the general formula (1) denotes an oxygen atom.

3 . A photochromic article comprising the photochromic compound according to claim 1 .

4 . The photochromic article according to claim 3 ,
which comprises at least: a substrate; and a photochromic layer containing the photochromic compound.

5 . The photochromic article according to claim 4 ,
wherein the photochromic layer further comprises a liquid crystal compound.

6 . The photochromic article according to claim 3 ,
which is a spectacle lens.

7 . The photochromic article according to claim 3 ,
which is a goggle lens.

8 . The photochromic article according to claim 3 ,
which Is a visor part of a sun visor.

9 . The photochromic article according to claim 3 ,
which is a shield member of a helmet.

10 . Eyeglasses comprising the spectacle lens according to claim 6 .

Assignees

• Hoya Lens Thailand Ltd

Inventors

• Arai Yuko
• Kobayashi Kei
• Nushi Yusuke
• Heron B Mark
• Gabbutt Christopher D
• Azevedo Orlando Delfim Carvalho Couto De

Classifications

• C09B23/04

  one >CH- group, e.g. cyanines, isocyanines, pseudocyanines · CPC title

• C09K9/02 Primary

  Organic tenebrescent materials · CPC title

• C09K19/04

  characterised by the chemical structure of the liquid crystal components {, e.g. by a specific unit} · CPC title

• G02C7/102

  Photochromic filters · CPC title

• C09K2019/0448

  the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate · CPC title