Nippon Sheet Glass Company, Limited

Sumitomo Chemical Company, Limited

Hisayuki Kayanoki

Motoaki Yoshida

Koichi Maeda

Akio Takigawa

Shinichiro Kitayama

Teruho Adachi

Yuichi Aoki

Satoshi Shiiki

Masahiro Ueda

Naoya Imamura

Satoshi Ishizuka

Naoto Hirayama

Shoji Mase

Noboru Otani

A plastic lens formed by laminating, in the order as described below, (A) a plastic lens substrate having a refractive index in the range of 1.50 to 1.70, (B) a primer layer containing a metal compound of at least one metal selected from the group consisting of Al, Ti, Zr, Sn and Sb and a polyurethane, or (B') a primer layer formed from a polyurethane containing at least one element selected from the group consisting of Cl, Br, I and S, (C) a hard coating layer, and (D) a single-layered or multi-layered anti-reflection layer formed by vapor-depositing an inorganic substance.

Plastic lens

A composition for an optical material, which comprises an N-phenylmaleimide, a di(meth)allyl diphenate and a bisphenol ester. The N-phenylmaleimide, the di(meth)allyl diphenate and the bisphenol ester are contained in amounts of 1 to 50% by weight, 5 to 50% by weight and 1 to 30% by weight, based on the total weight of these components, respectively, The composition affords a three-dimensionally crosslinked resin by radical polymerization. The resin is useful for an optical material.

Optical material and composition for optical material

A light control sheet capable of scattering an incident light of particular incident angle is produced by a method composed of preparing a film of a composition containing at least two photopolymerizable components having different refractive indexes, irradiating on the film a light from a particular direction, and obtaining a cured film of the light control sheet product. Such other light control sheets as capable of scattering a plurality of incident lights each of particular incident angle are obtained by modification of the above-mentioned method.

Light control sheets

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Takarazuka, Japan

Hisayuki Kayanoki