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Title:
PHOTOCHROMIC OPTICAL ARTICLE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/198664
Kind Code:
A1
Abstract:
Provided is a photochromic optical article obtained by bonding a pair of optical article plates to each other with an adhesive layer that contains (A) a photochromic compound and (B) a urethane resin, wherein (B) the urethane resin is obtained by polymerizing: (B1) a polyiso(thio)cyanate compound having two or more iso(thio)cyanate groups in a molecule; (B2) a poly(thi)ol compound having, in a molecule, two or more active hydrogen-containing groups selected from a hydroxyl group and a thiol group; and (B3) a mono(thi)ol compound having, in a molecule, one active hydrogen-containing group selected from a hydroxyl group and a thiol group. Also provided is a method for manufacturing the photochromic optical article.

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Inventors:
MORI KATSUHIRO (JP)
MOMODA JUNJI (JP)
Application Number:
PCT/JP2019/015319
Publication Date:
October 17, 2019
Filing Date:
April 08, 2019
Export Citation:
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Assignee:
TOKUYAMA CORP (JP)
International Classes:
G02B5/23; C09J11/06; C09J175/04; C09K9/02; G02B1/10
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See also references of EP 3779531A4
Attorney, Agent or Firm:
KATO Ryuta et al. (JP)
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