Mitsubishi Gas Chemical Company, Inc.

Mgc Filsheet Co., Ltd.

Ken Shimomai

Kyousuke Nakamura

Terutaka Tokumaru

Akio Ohkubo

Masaki Yagoura

Katsunori Suzuki

Hirotaka Tsuruya

Yutaka Nishibayashi

Masahide Sugiyama

Katunori Suzuki

This resin composition for high dielectric constant materials contains 40-80% by mass of (A) a resin material and 20-60% by mass of (B) a carbon black. The carbon black (B) has a DBP absorption of 10-50 mL/100 g and an iodine adsorption of 5-40 mg/g. This resin composition for high dielectric constant materials has a dielectric constant of 4 or more and a dielectric loss tangent of 0.05 or less.

Resin composition for high dielectric constant materials, molded article containing same, and master batch for coloring

Provided is a polarizing lens which is excellent especially in terms of impact resistance, appearance, and prevention of eye strain and which has high precision of the surface shape. The polarizing lens is formed by laminating a sheet of an aromatic polycarbonate through an adhesive layer to each surface of a film having polarizing properties, curving the resultant laminate so as to impart spherical or aspherical surfaces thereto to obtain a polarizing sheet, inserting the polarizing sheet into a mold, and injecting an aromatic polycarbonate, wherein the polarizing sheet is obtained through the laminating so that the stretch axis of one of the aromatic-polycarbonate sheets is perpendicular to the absorption axis of the film having the polarizing properties.

Polarizing lens constituted of aromatic polycarbonate

The present invention relates to a polarizing lens molded by inserting a polarizing sheet bent into a sphere or an asphere after having an aromatic polycarbonate sheet bonded via an adhesive layer to both surfaces of a film with polarized nature into a mold, and injecting aromatic polycarbonate, wherein heat treatment at a temperature not less than a temperature of 50&#xb0; C. lower than the glass transition point and less than the glass transition point for an appropriate time has been performed after injecting aromatic polycarbonate to approximate a designed value of the lens curvature.

Polarizing lens made of aromatic polycarbonate

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Tokyo, Japan

Ken Shimomai