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Title:
PHOTOCHROMIC OPTICAL ARTICLE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2020/204176
Kind Code:
A1
Abstract:
A photochromic optical article in which a pair of optical article plates are bonded to each other via an adhesive layer containing a photochromic compound and at least one resin selected from among a urethane resin, an epoxy resin and an acrylic resin, wherein the deviation of the thickness of the adhesive layer on a concentric circle from the center of the pair of the optical article plates is within ±10%.　The present invention provides a photochromic optical article in which a pair of optical article plates are bonded to each other via an adhesive layer, wherein the thickness of the adhesive layer containing a photochromic compound is specified and problems such as decline in appearance quality can be prevented.

Inventors:
MORI KATSUHIRO (JP)
NOGUCHI TAKAO (JP)
MOMODA JUNJI (JP)
Application Number:
PCT/JP2020/015374
Publication Date:
October 08, 2020
Filing Date:
April 03, 2020
Export Citation:
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Assignee:
TOKUYAMA CORP (JP)
International Classes:
C03C21/00; C08G18/28; C08G18/32; C08G18/38; C08G18/66; C08G18/72; C08G18/75; C09J11/06; C09J175/04; C09K9/02; G02B5/23; G02C7/10
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Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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