Thermochromic opaque composition, laminate member employing...

Details Thermochromic opaque composition, laminate member employing... Thermochromic opaque composition, laminate member employing...

C - Chemistry, Metallurgy

09

K

C09K 9/02 (2006.01) B32B 27/18 (2006.01) B44F 1/08 (2006.01) G02F 1/01 (2006.01)

Patent

CA 2108839

There are provided a thermochromic opaque composition capable of exhibiting change in transparency together with change in color in response to temperature variation, a laminate member employing the same, and a three-dimensional article capable of concealing and revealing the interior, utilizing the laminate member. The thermochromic opaque composition is formed by dispersing a thermochromic material, capable of developing and erasing color by an electron donating-accepting reaction, in small particles in vinyl chloride-vinyl acetate matrix resin. The above-mentioned structure realizes reversible change in transparency, together with change in color, in response to temperature variation, with hysteresis with a temperature difference of 10°C at minimum to 50°C between the high and low trigger temperatures.

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