Tetraindolylheptamethine dyestuffs
    1.
    发明授权
    Tetraindolylheptamethine dyestuffs 失效
    Tetraindolylheptamethine染料

    公开(公告)号:US5017707A

    公开(公告)日:1991-05-21

    申请号:US261947

    申请日:1988-10-24

    摘要: Tetraindolylheptamethine ethers and alcohols of the isomeric formulae ##STR1## and ##STR2## and dyestuffs of the formula ##STR3## in which A, B, D and E denote ##STR4## and D'.sup..sym. denotes ##STR5## and the remaining symbols have the meanings given in the description, are used in pressure- and heat-sensitive recording materials.

    摘要翻译: 其中A,B,D和E分别表示“IMAGE”和“D”(+)的式“IMAGE”的色素和/或IMA图像的色氨酸, 图像>其余符号具有说明书中给出的含义,用于压敏和热敏记录材料。