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    • 117. 发明授权
    • Thermochromic materials
    • 热变色材料
    • US4028118A
    • 1977-06-07
    • US643656
    • 1975-12-23
    • Norikazu NakasujiTakashi KataokaHiroshi InagakiSunao Nakashima
    • Norikazu NakasujiTakashi KataokaHiroshi InagakiSunao Nakashima
    • C08K5/00C09D11/00C09D11/06C09D11/12
    • C09D11/50C08K5/0041B41M5/305Y10S428/913Y10T428/24835
    • An excellent thermochromic material exhibiting a sharp and reversible metachromatism at temperatures within a range of from -40.degree. to 80.degree. C can be formed from (A) an electron-donating, chromatic organic compound; (B) a compound containing a phenolic hydroxyl group; (C) a compound selected from the group consisting of higher aliphatic monovalent alcohols; and (D) a compound selected from the group consisting of higher aliphatic monovalent acid alcohol esters. The excellent thermochromic characteristics of such a thermochromic material can be further improved when it is occluded in fine microcapsules having a size not exceeding 50 .mu.. Thermochromic polymers, thermochromic printing inks, thermochromic writing instruments, thermochromic paints and thermochromic sheets having excellent thermochromatic characteristics and wide utility can be prepared from such a thermochromic material or microencapsulated thermochromic material.
    • 在(A)给电子的有机有机化合物中可以形成在-40℃至80℃的温度范围内表现出尖锐和可逆的变质反应的优异的热变色材料。 (B)含有酚羟基的化合物; (C)选自高级脂族一元醇的化合物; 和(D)选自高级脂族一价酸式醇酯的化合物。 当这种热变色材料被封闭在尺寸不超过50微米的微细微胶囊中时,可以进一步改善这种热变色材料的优异热变色特性。 热变色聚合物,热变色印刷油墨,热变色书写工具,热变色油漆和具有优异的热色特性和广泛应用的热变色板可以由这种热变色材料或微胶囊化热变色材料制备。