US 4,060,383 A · Monoazo dyestuffs

Abstract

Monoazo dyestuffs having the general formula: ##STR1## in which the hydroxyl group is in the 2- or 4-position relative to the azo group and wherein R.sup.1 represents a hydrogen or halogen atom or an alkyl, cycloalkyl, aryl or alkoxy group and R.sup.2 represents a hydrogen atom or alkyl group. The dyestuffs are useful as acid dyes for nylon.

Claims1

Dependent claims

A process for the coloration of synthetic polyamide textile materials which comprises applying thereto an aqueous solution of a monoazo dyestuff consisting of a dye having the formula ##STR5##

Dependencies are inferred from the claim text.

Facts

Application

05/633,558Filed 19 Nov 1975 · continuation

Priority

UK 15272/7117 May 1971

Granted

29 Nov 1977

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

D06P 1/18
Using dispersed, e.g. acetate, dyestuffs: azo dyes
D06P 1/39
General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form,…:…
C09B 29/08
From coupling components containing amino as the only directing group: amino benzenes
D06P 3/24
Containing amide groups: polyamides; Polyurethanes

Monoazo dyestuffs

Life of this patent

Abstract

Claims1

Monoazo dyestuffs

Life of this patent

Abstract

Claims1