US 12,473,432 B2
Isomeric mixture of reactive dyes and their use for the dyeing or printing of textile fibre materials
Hubert Christnacher, Dietwiller (FR); Fanny Ehret, Reiningue (FR); Michael Nicollet, Village-Neuf (FR); Jean-Christophe Graciet, Village-Neuf (FR); and Georg Roentgen, Freiburg im Breisgau (DE)
Assigned to Archroma (Switzerland) GmbH, Pratteln (CH)
Appl. No. 18/833,795
Filed by Archroma (Switzerland) GmbH, Pratteln (CH)
PCT Filed Jan. 19, 2023, PCT No. PCT/EP2023/051254
§ 371(c)(1), (2) Date Jul. 26, 2024,
PCT Pub. No. WO2023/144005, PCT Pub. Date Aug. 3, 2023.
Claims priority of application No. 22153149 (EP), filed on Jan. 25, 2022; and application No. 22172397 (EP), filed on May 9, 2022.
Prior Publication US 2025/0145831 A1, May 8, 2025
Int. Cl. C09B 27/00 (2006.01); C09B 29/01 (2006.01); C09D 11/037 (2014.01); D06P 1/38 (2006.01)
CPC C09B 29/0011 (2013.01) [C09D 11/037 (2013.01); D06P 1/38 (2013.01)] 18 Claims
 
1. An isomeric mixture of at least one reactive dye of formula (I):

OG Complex Work Unit Chemistry
wherein,
R1 is hydrogen or C1-C4alkyl,
R2 is hydrogen, C1-C4 alkyl, C1-C4 alkoxy, sulfo, carboxy or halogen,
Z is a fibre-reactive radical of formula —SO2—CH═CH2, —SO2—(CH2)2—Y, —NH—(CH2)2—O—(CH2)2—SO2—CH═CH2, —NH—(CH2)2—O—(CH2)2—SO2—(CH2)2—Y, —NH—(CH2)2—O—(CH2)3—SO2—CH—CH2, —NH—(CH2)2—O—(CH2)3—SO2—(CH2)2—Y, —NHCO—(CH2)3—SO2—CH—CH2 or —NHCO—(CH2)3—SO2—(CH2)2—Y
wherein Y is a group removable under alkaline conditions,
X is halogen, and
M is hydrogen, an organic salt, an alkali metal or one equivalent of an alkaline earth metal.