1,2-Dialkyl-3-phenyl-5-[4-(N-alkyl or N,N-dialkyl)amino-2-benzoy

Details 1,2-Dialkyl-3-phenyl-5-[4-(N-alkyl or N,N-dialkyl)amino-2-benzoy 1,2-Dialkyl-3-phenyl-5-[4-(N-alkyl or N,N-dialkyl)amino-2-benzoy

1978-10-03

1980-12-23

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260162, C09B 2908, C09B 4522, D06P 370

Patent

active

042409594

ABSTRACT:
The present invention relates to new azo-pyrazolium dyestuffs which correspond to the general formula: ##STR1## in which R.sub.1 and R.sub.2 represent alkyl groups containing 1 to 4 carbon atoms, R.sub.3 represents a hydrogen atom or a methyl or ethyl group, R.sub.4 represents a methyl or ethyl group, X represents a hydrogen atom or a nitro group, Y represents a phenyl group or said phenyl group substituted by one or two halogen atoms or nitro groups, and Z represents an anion. These dyestuffs, which have a mean index of compatibility and are stable in dyebaths, provide on acrylic fibers red colorations of a pure shade having excellent fastness (light, vaporizing, washing).

REFERENCES:
patent: 3515715 (1970-06-01), Straley et al.
patent: 3948878 (1976-04-01), Coispeau
patent: 4082740 (1978-04-01), Mohr et al.
patent: 4113718 (1978-09-01), Loew et al.
patent: 4116954 (1978-09-01), Coispeau et al.

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