Title:
PHOTOCHROMIC COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2012/141250
Kind Code:
A1
Abstract:
[Problem] To provide a photochromic composition which functions as an adhesive layer for bonding optical sheets comprising a polycarbonate resin or the like and which can yield an optical sheet laminate having excellent tight adhesion, heat resistance, solvent resistance and photochromic properties, particularly, a photochromic composition capable of yielding an optical sheet laminate such that, when a polymerizable monomer is polymerized with the optical sheet laminate buried therein, the elution of the photochromic composition from the optical sheet laminate can be minimized. [Solution] A photochromic composition characterized by containing (A) a polyurethane resin having an isocyanurate skeleton and (B) a photochromic compound.
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Inventors:
HIRAREN TOSHIMITSU (JP)
MORI KATSUHIRO (JP)
SHIMIZU YASUTOMO (JP)
MORI KATSUHIRO (JP)
SHIMIZU YASUTOMO (JP)
Application Number:
PCT/JP2012/060029
Publication Date:
October 18, 2012
Filing Date:
April 12, 2012
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
HIRAREN TOSHIMITSU (JP)
MORI KATSUHIRO (JP)
SHIMIZU YASUTOMO (JP)
HIRAREN TOSHIMITSU (JP)
MORI KATSUHIRO (JP)
SHIMIZU YASUTOMO (JP)
International Classes:
G02B5/23; C09K9/02; G02C7/02; G02C7/10
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See also references of EP 2698410A4
Attorney, Agent or Firm:
MAEDA & SUZUKI (JP)
Maeda and a Suzuki international patent business corporation (JP)
Maeda and a Suzuki international patent business corporation (JP)
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Claims: