Disazo reactive dyestuffs containing the quaternary groups...

Details Disazo reactive dyestuffs containing the quaternary groups... Disazo reactive dyestuffs containing the quaternary groups...

2006-08-29

2006-08-29

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Azo

C534S612000, C534S614000

Reexamination Certificate

active

07098319

ABSTRACT:
The present invention provides disazo reactive dyestuffs containing the quaternary group compounds of the general formula (1)wherein R, (W)0˜3, (W′)0˜3, Y1and Y2are defined the same as the specification. The dyes of the invention are distinguished by high fixation and a very good build-up. They are distinguished also by high washing off and a low nylon stain, and they have fiber-reactive properties and are very highly suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp, or amide containing fibers such as wool and nylon.

REFERENCES:
patent: 3440240 (1969-04-01), Kuhne et al.
patent: 5817779 (1998-10-01), Deitz et al.
patent: 5998590 (1999-12-01), Feeman et al.
patent: 952123 (1964-03-01), None
patent: 1349168 (1974-03-01), None

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