申请人:THE PILOT INK CO., LTD.
公开号:EP0677564A2
公开(公告)日:1995-10-18
A thermochromic opaque/transparent composition is 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.
A thermochromic opaque/transparent composition is composed of dispersion, in vinyl chloridevinyl acetate copolymer matric resin, which has been obtained by blending with hindered amine compound selected from piperidine derivatives within a particle size range of 0.1 to 2.0 µm, of a reversible thermochromic material consisting of (a) an electron-donating color-developing organic compound, (b) a compound having a phenolic hydroxyl radical, and (c) a homogeneous fused composition containing a compound selected from alcohols, esters, ketones and carboxylic acids, and capable of exhibiting reversible change in transparency together with change in color in response to temperature variation, with hysteresis with a temperature difference of 10°C to 50°C between the low and high trigger temperatures.
一种热致变色不透明/透明组合物能够随着温度的变化而显示出透明度的变化以及颜色的变化,一种使用该组合物的层压件,以及一种利用该层压件能够隐藏和显示内部的三维物品。
热致变色不透明/透明组合物是由分散在氯乙烯乙烯基醋酸酯共聚物母树脂中的可逆性胺化合物和选自哌啶衍生物的受阻胺化合物在 0.1 至 2.这种可逆热致变色材料包括:(a) 电子捐赠显色有机化合物;(b) 具有酚羟基的化合物;(c) 含有选自醇、酯、酮和羧酸的化合物的均质熔融组合物。