Phthalimidyl azo dyes, process for the preparation thereof...

Details Phthalimidyl azo dyes, process for the preparation thereof... Phthalimidyl azo dyes, process for the preparation thereof...

2006-03-14

2006-03-14

Powers, Fiona T. (Department: 1626)

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

Organic compounds

Azo

C008S456000, C008S639000, C008S662000, C008S696000

Reexamination Certificate

active

07012137

ABSTRACT:
The present invention relates to dyes of formula (I) wherein R is hydrogen or bromine, R1is hydrogen, methyl or —NHCO—C1–C4alkyl, R2is C1–C4alkyl substituted by C1–C4alkoxy and R3has, independently of R2, any of the meanings of R2, and to the process for the preparation thereof and to the use thereof in dyeing or printing semi-synthetic and especially synthetic hydrophobic fiber materials, especially textile materials.

REFERENCES:
patent: 3980634 (1976-09-01), Weaver
patent: 6555664 (2003-04-01), Lauk et al.
patent: 00/40656 (2000-07-01), None
Chemical Abstract vol. 85, No. 48260s (1976) for JP 51029577.

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