Methanesulfonamide azo dyes

Details Methanesulfonamide azo dyes Methanesulfonamide azo dyes

2007-05-22

2007-05-22

Powers, Fiona T. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

C534S714000, C534S716000, C534S723000, C534S763000, C534S783000, C534S827000, C534S876000, C008S674000, C008S681000, C008S682000, C008S685000, C008S686000, C008S918000, C008S921000, C106S031500, C106S031510, C106S031520, C430S108230, C524S105000, C524S159000

Reexamination Certificate

active

10552602

ABSTRACT:
This invention relates to monoazo, disazo and trisazo colorants of the formula (I)whereM represents two hydrogen atoms or one metal ion selected from the group consisting of Cu, Co, Ni, Mn, Zn and Al;A is the radical of a substituted naphthyl or pyrazolyl radical.

REFERENCES:
patent: 3132130 (1964-05-01), Beffa et al.
patent: 6127531 (2000-10-01), Nusser
patent: 6635747 (2003-10-01), Wight et al.
patent: 2001/0027734 (2001-10-01), Geisenberger et al.
PCT International Search Report for PCT/EP2004/003380, mailed Aug. 10, 2004.
English Translation of International Preliminary Examination Report for PCT/EP2004/003380, mailed Mar. 9, 2006.

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