Urethane (meth)acrylate resin, curable resin composition, cured product thereof, and plastic lens

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United States of America Patent

PATENT NO 10640603
SERIAL NO

15549444

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Abstract

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A urethane (meth)acrylate resin wherein the viscosity of the resin is low, the formability into a sheet-formed product, in particular, an optical sheet provided with fine uneven shapes on the surface is excellent, and a high refractive index can be realized, a curable resin composition including the urethane (meth)acrylate resin as an indispensable component, a cured product thereof, and a plastic lens are provided. A urethane (meth)acrylate resin produced by reacting aromatic diisocyanate compound (a), bisphenol-ethylene oxide adduct diol (b) having at least three aromatic ring or alicyclic structures in the molecule, and hydroxy-containing (meth)acrylate compound (c), which are indispensable raw material components, a curable resin composition containing the urethane (meth)acrylate resin as a primary component, and a cured product thereof.

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Patent Owner(s)

Patent OwnerAddress
DIC CORPORATION35-58 SAKASHITA 3-CHOME ITABASHI-KU TOKYO 174-8520

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Nobuo Ichihara, JP 144 1838
Odani, Yasuko Ichihara, JP 6 5

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