Copper complex formazan compounds process for their...

C - Chemistry – Metallurgy – 09 – B

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8/1, 260/153

C09B 50/00 (2006.01) C09B 62/503 (2006.01) D06P 1/00 (2006.01)

Patent

CA 1151158

Abstract of the disclosure: Novel copper complex formazan compounds of the formula (-) Image M(+) in which M and R are as defined and process for their manufac- ture. The compounds can be used as dyestuffs, in particular fiber reactive dyestuffs, for dyeing, for example, cellulose fiber materials, wool, or synthetic polyamide fiber materials, on which they give intense blue dyeings having good fastness properties.

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