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    Novel dyestuffs and their use
    3.
    发明授权
    Novel dyestuffs and their use 失效
    新染料及其应用

    公开(公告)号：EP0633296B1

    公开(公告)日：1999-10-13

    申请号：EP94304994.0

    申请日：1994-07-06

    申请人： MITSUI CHEMICALS, INC.

    发明人： Karasawa, Akio ,  Itoh, Hisato

    IPC分类号： C09B69/00 ,  C09B6/00 ,  C09B25/00 ,  C09B43/30 ,  C09B47/18 ,  C08K5/00 ,  G02B5/20

    CPC分类号： G03F7/0007 ,  C09B1/16 ,  C09B1/50 ,  C09B1/547 ,  C09B5/2472 ,  C09B25/00 ,  C09B43/30 ,  C09B47/063 ,  C09B69/00 ,  Y10T428/31504

    摘要： Dyestuffs represented by the below-described formula (1), that is, dyestuffs formed of a chromophoric nucleus and a bisphenol introduced therein have excellent solubility in solvents and binder resins, and can provide color filters having excellent transmittance characteristics and durability. wherein Dye represents a chromophoric nucleus, X represents a direct bond or a divalent connecting group, R to R independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group or a substituted or unsubstituted alkoxyl group, R and R independently represent a hydrogen atom or a substituted or unsubstituted alkyl group, and n stands for an integer of 1 to 10, with the proviso that the total carbon number of R and R is at least 3.