Polymerizable composition for optical article and optical article

Patent metadata

Field	Value
Publication number	US-12378347-B2
Application number	US-202217705954-A
Country	US
Kind code	B2
Filing date	Mar 28, 2022
Priority date	Dec 27, 2019
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

Provided is a polymerizable composition for an optical article including a photochromic compound, a component A: an acyclic methacrylate having a molecular weight of 500 or more, and a component B: a hydroxy group-containing (meth)acrylate.

First claim

What is claimed is:

1. A polymerizable composition,
which is a polymerizable composition for an optical article, and comprises:
a photochromic compound;
a component A: an acyclic methacrylate having a molecular weight of 500 or more; and
a component B: a hydroxy group-containing (meth) acrylate, wherein component B has the following features:
(i) an epoxy ester structure,
(ii) is a hydroxy group-containing bifunctional (meth) acrylate, and
(iii) a part of or all of the hydroxy group(s) included in the component B are hydroxy group(s) included in the epoxy ester structure.

2. The polymerizable composition according to claim 1 , further comprising
a component C: an acyclic tri- or higher-functional (meth) acrylate.

3. The polymerizable composition according to claim 1 , further comprising
a component D: having a molecular weight of 400 or less and represented by the following Formula 2:

[in Formula 2, R 1 and R 2 each independently represent a hydrogen atom or a methyl group, and m represents an integer of 1 or more].

4. The polymerizable composition according to claim 1 ,
wherein the composition contains 50.0 mass % or more of the component A based on a total amount of the polymerizable compounds contained in the composition.

5. The polymerizable composition according to claim 1 ,
wherein the composition contains 5.0 mass % or more and 40.0 mass % or less of the component B based on a total amount of the polymerizable compounds contained in the composition.

6. An optical article, comprising:
a substrate; and
a photochromic layer obtained by curing the polymerizable composition according to claim 1 .

7. The optical article according to claim 6 , which is a spectacle lens.

8. The optical article according to claim 6 , which is a goggles lens.

9. The optical article according to claim 6 , which is a visor of a sun visor.

10. The optical article according to claim 6 , which is a shield member of a helmet.

11. Eyeglasses including the spectacle lens according to claim 7 .

Assignees

• Hoya Lens Thailand Ltd

Inventors

• Shimada Takuya
• Kobayashi Kei
• Yamashita Teruo
• Watanabe Tsuyoshi

Classifications

• C08F290/062 Primary

  Polyethers · CPC title

• C09K9/02

  Organic tenebrescent materials · CPC title

• G02B5/23

  Photochromic filters · CPC title

• G02B1/041

  Lenses · CPC title

• C08F290/06 Primary

  Polymers provided for in subclass C08G · CPC title