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    Liquid crystalline filter dyes for imaging elements
    1.
    发明公开
    Liquid crystalline filter dyes for imaging elements 有权
    用于成像元件的液晶过滤染料

    公开(公告)号：EP0985968A1

    公开(公告)日：2000-03-15

    申请号：EP99202804.3

    申请日：1999-08-30

    申请人： EASTMAN KODAK COMPANY

    发明人： Helber, Margaret J., Eastman Kodak Company ,  Harrison William J., Eastman Kodak Company ,  Parton, Richard L., Eastman Kodak Company

    IPC分类号： G03C1/83 ,  G03C1/22 ,  C09B23/10

    CPC分类号： G03C1/832 ,  C09B23/10 ,  G03C1/22

    摘要： This invention is a dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I:

            [D-(X) m ]-(Y) n      I

    wherein:

    D is a merocyanine dye;
    each Y contains an ionic or a nonionic solubilizing substituent or a group with a pKa value of less than 4 in water;
    each X is a nonionic substituent;
    n is I to 10;
    m is 0-10; and
    the resulting dye forms a liquid-crystalline phase in solvent.
    The dispersion is particularly useful in imaging and photographic elements.

    摘要翻译： 本发明是一种分散体，其包含其中分散有结构式I的液晶形成染料的溶剂：[D-（X）m] - （Y）n I其中：D是部花青染料; 每个Y在水中含有离子型或非离子型增溶取代基或pKa值小于4的基团; 每个X是非离子取代基; n是1到10; m是0-10; 并且所得染料在溶剂中形成液晶相。 该分散体在成像和照相元件中特别有用。