Invention Grant
US3891617A 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
- Patent Title: Metallized and non-metallized diphenol methane containing azo dyestuffs
- Patent Title (中): 含有偶氮染料的金属化和非金属化二酚甲烷
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Application No.: US32672873Application Date: 1973-01-26
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Publication No.: US3891617APublication Date: 1975-06-24
- Inventor: SAILER ANDRE LOUIS , FRANK PIERRE
- Applicant: PECHINEY UGINE KUHLMANN
- Assignee: Pechiney Ugine Kuhlmann
- Current Assignee: Pechiney Ugine Kuhlmann
- Priority: FR7202511 1972-01-26
- Main IPC: C09B33/00
- IPC: C09B33/00 ; C09B33/044 ; C09B45/00 ; C09B45/24 ; D06P3/32 ; C09B33/04 ; C09B45/28
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.
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.
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