D - Textiles – Paper – 06 – P
Patent
D - Textiles, Paper
06
P
8/11
D06P 1/02 (2006.01) C09B 67/00 (2006.01) C09B 67/22 (2006.01)
Patent
CA 1110011
MODIFICATIONS OF MIXTURES OF AZO DYESTUFFS STABLE UNDER DYEING CONDITIONS Abstract of the disclosure Novel modifications being stable under dyeing conditions of mono- azo-dyestuffs obtained by coupling 1 mole of diazotized 2-cyan- 4-nitro-aniline with 1 mole of a mixture of the coupling compo- nents N-n-butyl-N-cyanethyl-aniline (A) and N-ethyl-N-cyanethyl- aniline (B) in a molar ratio of from 50 : 50 to 20 : 80 of A : B, and subsequently treating the formed products each consisting of the dyestuffs of the formulae Image and Image a) by heating in an aqueous suspension to a temperature between 90 and 150 °C, or b) by heating in an organic solvent to a temperature between 90 and 150 °C, or c) by grinding at a temperature between 90 and 100 °C, or d) by drying from aqueous-moist state at a temperature between 100 and 120 °C4 the novel modifications representing disperse dyes being suitable for the dyeing of fibrous materials of cellulosic esters or of synthetic linear polyesters.
287268
Deucker Walter
Kruse Hubert
Sommer Karl
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
LandOfFree
Modifications of mixtures of azo dyestuffs stable under... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modifications of mixtures of azo dyestuffs stable under..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modifications of mixtures of azo dyestuffs stable under... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-658159