PHOTOCHROMIC ARTICLE, AND METHOD FOR PRODUCING PHOTOCHROMIC ARTICLE

Title:

PHOTOCHROMIC ARTICLE, AND METHOD FOR PRODUCING PHOTOCHROMIC ARTICLE

Document Type and Number:

WIPO Patent Application WO/2024/009834

Kind Code:

A1

Abstract:

Provided is a photochromic article comprising a substrate, a primer layer produced by curing a polymerizable composition for primer layer formation use, and a photochromic layer produced by curing a (meth)acrylic polymerizable composition containing a photochromic compound in this order, in which the polymerizable composition for primer layer formation use contains a urethane (meth)acrylate containing an isocyanate group, and the content of the isocyanate group in the polymerizable composition for primer layer formation use is 2.0% by mass or more when the whole amount of the composition is 100% by mass.

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Inventors:

HIGUCHI TAKESHI (JP)
KOBAYASHI KEI (JP)

Application Number:

PCT/JP2023/023697

Publication Date:

January 11, 2024

Filing Date:

June 27, 2023

Export Citation:

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Assignee:

HOYA LENS THAILAND LTD (TH)
HIGUCHI TAKESHI (JP)
KOBAYASHI KEI (JP)

International Classes:

G02B5/23; G02B1/04; G02C7/00; G02C7/02; G02C7/10

Domestic Patent References:

WO2015016313A1	2015-02-05
WO2021132051A1	2021-07-01
WO2017039019A1	2017-03-09

Foreign References:

JP2020517764A	2020-06-18
JP2005199683A	2005-07-28

Attorney, Agent or Firm:

SIKS & CO. (JP)

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