PHOTOCHROMIC ADHESIVE COMPOSITION, PHOTOCHROMIC LAYERED BODY, AND OPTICAL ARTICLE USING SAID PHOTOCHROMIC LAYERED BODY

Title:

PHOTOCHROMIC ADHESIVE COMPOSITION, PHOTOCHROMIC LAYERED BODY, AND OPTICAL ARTICLE USING SAID PHOTOCHROMIC LAYERED BODY

Document Type and Number:

WIPO Patent Application WO/2019/194281

Kind Code:

A1

Abstract:

The present invention is a photochromic adhesive composition including (A) a photochromic compound having as a substituent a molecular chain having a molecular weight of 300 or greater, and (B) an adhesive urethane (urea) resin, the softening point of the photochromic adhesive composition being 140-220°C, and a photochromic layered body in which the adhesive composition is used. Through the present invention, there is provided a photochromic adhesive composition for functioning as an adhesive layer for bonding an optical sheet, wherein a photochromic layered body in which the composition is used exhibits excellent photochromic characteristics, adhesion, and workability.

Inventors:

HIRAREN TOSHIMITSU (JP)
MORI KATSUHIRO (JP)
MOMODA JUNJI (JP)

Application Number:

PCT/JP2019/014976

Publication Date:

October 10, 2019

Filing Date:

April 04, 2019

Export Citation:

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Assignee:

TOKUYAMA CORP (JP)

International Classes:

G02B5/23; C08G18/42; C08G18/44; C09J11/06; C09J175/04; C09K9/02; G02C7/10

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