C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 62/513 (2006.01) C09B 31/072 (2006.01) C09B 43/40 (2006.01) C09B 62/44 (2006.01) D06P 1/384 (2006.01)
Patent
CA 2086615
Disazo compounds which possess fiber-reactive groups and have useful dye properties and are capable of dyeing hydroxyl- and/or carboxamido-containing materials, in particular fiber materials, such as cellulose fibers and natural and synthetic polyamide, such as wool, in strong, fast shades. They conform to the formula Image (1) where Me is hydrogen or an alkali metal; K1 is a radical of the formula Image and K2 is a radical of the formula Image where Me has one of the abovementioned meanings, and n is zero or 1, if zero, this group being hydrogen; D1 and D2 are each a group of the formula (3a), (3b) or (3c) Image (3a) Image (3b) Image (3c) where Me has one of the abovementioned meanings, R1 is hydrogen, alkyl of from 1 to 4 carbon atoms, which may be sulfo-, carboxyl- or sulfato-substituted, alkoxy of from 1 to 4 carbon atoms, which may be sulfo-, carboxyl- or sulfato- substituted, chlorine, bromine, hydroxyl, cyano, carboxyl or sulfo, R2 is hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms, Y is vinyl, or ethyl which contains in the .beta.-position a substituent which is eliminable by alkali, and m is zero, 1 or 2 (if zero, this group being hydrogen).
Gleissner Rolf
Springer Hartmut
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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