Nitroaminophenols and their use in dyeing keratinous fibres.

Details Nitroaminophenols and their use in dyeing keratinous fibres. Nitroaminophenols and their use in dyeing keratinous fibres.

1986-04-11

1988-06-07

Chan, Nicky

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

8408, 564441, 549439, A61K 713, C07C 8760

Patent

active

047493798

ABSTRACT:
New nitroaminophenols, the process for preparation thereof and their use in dyeing keratinous fibres, and new intermediate nitroaminobenzenes and their use in dyeing keratinous fibres.
The invention relates to a nitroaminophenol of formula: ##STR1## in which Z denotes --CH.sub.2 W, W denoting H, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 hydroxyalkyl, C.sub.2 -C.sub.6 polyhydroxyalkyl, (C.sub.1 -C.sub.3), alkoxy(C.sub.1 -C.sub.6)alkyl or (C.sub.1 -C.sub.3)hydroxyalkoxy(C.sub.1 -C.sub.6)-alkyl and R denotes H, (C.sub.1 -C.sub.6)alkyl, C.sub.1 -C.sub.6 hy-droxyalkyl, C.sub.2 -C.sub.6 polyhydroxyalkyl or (C.sub.1 -C.sub.3)-alkoxy(C.sub.1 -C.sub.6)alkyl, and the process for preparation thereof, and the intermediate compound of formula: ##STR2## in which R' denotes C.sub.1 -C.sub.6 hydroxyalkyl, C.sup.2 -C.sub.6 polyhydroxyalkyl or (C.sub.1 -C.sub.3)alkoxy(C.sub.1 -C.sub.6)alkyl and the process for preparation thereof.
The dyes of formulae (I) and (II') can be used in direct dyeing of keratinous fibres, in particular, human hair.

REFERENCES:
patent: 3794676 (1974-02-01), Halasz
patent: 4575378 (1986-03-01), Seidel et al.

Affiliated with

Also associated with

Rating

Nitroaminophenols and their use in dyeing keratinous fibres. does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Nitroaminophenols and their use in dyeing keratinous fibres., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nitroaminophenols and their use in dyeing keratinous fibres. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-842513