Water-soluble pyrazolone azo dyestuffs derived from phthalocyanine
    2.
    发明授权
    Water-soluble pyrazolone azo dyestuffs derived from phthalocyanine 失效
    来自PHTHALOCANINE的水溶性吡咯烷酮AZO DYESTUFFS

    公开(公告)号:US3622557A

    公开(公告)日:1971-11-23

    申请号:US3622557D

    申请日:1968-05-15

    Applicant: UGINE KUHLMANN

    CPC classification number: C09B56/14 C09B43/1247 C09B47/26

    Abstract: Dyestuffs of the formula:

    IN WHICH Pc represents the copper phthalocyanine residue, X represents an -OH or -NH-alkyl-OH group, Y represents a methyl or carboxyl group, the benezene ring Z may be substituted by at least one halogen atom or alkyl or sulpho group, m represents an integer from 1 to 4, and n represents an integer from 0 to 3, the sum m+n being equal to 4, and the possible substitutents of the ring Z may be the same or different when m is equal to or greater than 2. These dyestuffs are suitable for the dyeing of animal fibers, for example, leather in bright shades ranging from green to blue and the colorations are very uniform and remarkably fast to light, washing and solvents.

    Metallized and non-metallized diphenol methane containing azo dyestuffs
    3.
    发明授权
    Metallized and non-metallized diphenol methane containing azo dyestuffs 失效
    含有偶氮染料的金属化和非金属化二酚甲烷

    公开(公告)号:US3891617A

    公开(公告)日:1975-06-24

    申请号:US32672873

    申请日:1973-01-26

    CPC classification number: C09B33/00 C09B33/044 C09B45/00 C09B45/24 D06P3/326

    Abstract: Dyestuff of the formula:

    IN WHICH X represents a sulphonyl or isopropylidene group and R and R'' are the same or different and each represents a residue of a diazotisable aromatic primary amine which may carry in the ortho position to the amino group a group capable of taking part in the formation of a metalliferous complex, and metalliferous complexes thereof. These dyestuffs are useful for the colouration of leather and may be prepared by coupling a compound of the formula:

    WITH A DIAZO DERIVATIVE OF AN AMINE OF FORMULA R-NH2 or R''-NH2 or the diazo derivatives of such amines, at the rate of two moles of diazo derivative or derivatives per mole of compound of formula (II). The dyestuffs give dyeings which possess good fastness to washing, solvents and light.

    Abstract translation: 染料的配方:

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