Thermochromic materials
    5.
    发明授权
    Thermochromic materials 失效
    热变色材料

    公开(公告)号:US5281570A

    公开(公告)日:1994-01-25

    申请号:US916790

    申请日:1992-07-22

    IPC分类号: C09K9/02 B41M5/28

    摘要: A reversible thermochromic material, preferably in the form of a microcapsule, comprising:(a) an electron donative color former;(b) a sulfide, sulfoxide or sulfone containing a hydroxy phenyl radical; and(c) a chemical compound selected from alcohols, esters, ethers, ketones, carboxylic acids or acid amides,chromatizes very brightly and in a dense color, generates a change of chromic hue (colored - colorless) within a narrow temperature range and provides a stable thermochromatism on a long term basis.

    摘要翻译: 一种可逆的热变色材料,优选为微胶囊形式,包括:(a)一种给电子着色剂; (b)含有羟基苯基的硫化物,亚砜或砜; 和(c)选自醇,酯,醚,酮,羧酸或酰胺的化合物,非常明亮和致密的着色,在窄的温度范围内产生铬色调(着色 - 无色)的变化,并提供 长期稳定的热色素。

    Color developer composition, aqueous dispersion, recording sheet and color developing ink
    7.
    发明授权
    Color developer composition, aqueous dispersion, recording sheet and color developing ink 失效
    彩色显影剂组合物,水性分散体,记录片材和显色油墨

    公开(公告)号:US06383982B1

    公开(公告)日:2002-05-07

    申请号:US09563240

    申请日:2000-05-02

    IPC分类号: B41M5155

    摘要: A color developer composition comprising (A) a color developer containing a polyvalent metal salt of a salicylic acid derivative, and (B) a polyester polyol having in the molecule skeleton at least one carbonate bond or ester bond, and a derivative thereof, an aqueous dispersion and a color developing ink using this color developer composition, and a recording sheet having a layer containing this color developer composition on a base material.

    摘要翻译: 一种彩色显影剂组合物,其包含(A)含有水杨酸衍生物的多价金属盐的显色剂和(B)在分子骨架中具有至少一个碳酸酯键或酯键的聚酯多元醇及其衍生物, 分散体和使用该彩色显影剂组合物的彩色显影油墨,以及在基材上含有该彩色显影剂组合物的层的记录纸。