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20250188291. Photochromic Article (HOYA LENS THAILAND .)

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PHOTOCHROMIC ARTICLE AND METHOD FOR PRODUCING PHOTOCHROMIC ARTICLE

Abstract: a photochromic article including a substrate; a primer layer formed by curing a polymerizable composition for forming the primer layer, and a photochromic layer formed by curing a (meth)acrylate-based polymerizable composition containing a photochromic compound, in this order, wherein the polymerizable composition for forming the primer layer contains isocyanate group-containing urethane (meth)acrylate, and the polymerizable composition for forming the primer layer has an isocyanate group content rate of 2.0 mass % or more when a total amount of the composition is set to 100 mass %.

Inventor(s): Takeshi HIGUCHI, Kei KOBAYASHI

CPC Classification: C09D5/29 (COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics ; processes for applying liquids or other fluent materials to surfaces, in general, ; staining wood ; glazes or vitreous enamels ; natural resins, French polish, drying-oils, driers, turpentine, per se, ; polishing compositions other than French polish, ski waxes ; adhesives or use of materials as adhesives ; materials for sealing or packing joints or covers ; materials for stopping leaks ; processes for the electrolytic or electrophoretic production of coatings ))

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