Achilles Corporation

Takuo Suzuki

Junichi Harasawa

Hiroki Ashizawa

Makiko Sakurazawa

Yoshiaki Shimizu

Mamoru Ubukata

A dark color, resin sheet-like body having light reflective properties in a near-infrared region, the body comprising a surface layer (A) receiving solar radiation and a reflection layer (B). Surface layer (A) exhibits a dark color with a solar radiation absorption ratio of 90% or more in a wavelength region of 380 to 720 nm, a ratio of less than 30% in a near-infrared region of 720 to 1500 nm, and ratio of 50% or more in a near-infrared region of 720 to 1500 nm. Reflection layer (B) has a solar radiation reflection ratio of 85% or more in a wavelength region of 380 to 1500 nm. A ratio in a near-infrared region of 720 to 1500 nm of a sheet-like body formed by laminating surface layer (A) and reflection layer (B) is 70% or more.

Dark color sheet-like body having light reflection properties in near-infrared region

A soft resinous sheet article having both flexibility and heat-stable, is prepared from a composition containing a matrix and a filler (C) comprising at least one of a metal carbonate and a metal hydroxide, having an average particle diameter of 0.5 to 30 &#x3bc;m and showing a decomposition temperature of 250&#xb0; C. or higher, the matrix containing an acrylic copolymer (A) containing at least one carboxyl group as a functional group and having a molecular weight of 800 to 20000 and an acid value (AV) of 20 to 150; and a compound (B) containing two or more glycidyl groups in its molecule and having a weight per epoxide of 80 to 400. This article is used to for example thermal interface materials, thermal conductive sheet, thermally conductive polymer, heat conductive sheet, heat dissipative sheet and heat transfer material.

Heat-stable soft resinous sheet articles and compositions therefor

A color sheet having a light-shielding effect comprises at least a reflecting layer and a color layer overcoated on the side of the color sheet where the color sheet is exposed to light from the reflecting layer. The reflecting layer a solar-radiation reflectance of 60% or more in a wavelength range of 780 nm to 1350 nm, and the color layer has a light transmittance of 30% or more in a wavelength range of 780 nm to 1350 nm and a solar-radiation absorbance of 10 to 80% in a wavelength range of 380 nm to 780 nm.

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Ashikaga, Japan

Takuo Suzuki