Patent · US Expired

Dye mixtures of fiber-reactive AZO dyes, their preparation and their use

US7429279B2 · kind B2 · utility

1Cited by

12References

10Claims

0Family size

Assignee

DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

Stefan Meier · Neubiberg, DE
Werner Russ · Flörsheim, DE
Joachim Eichhorn · Frankfurt, DE

Key dates

Filing date	Jul 26, 2004
Grant date	Sep 30, 2008
Priority date	—
Expiry date	Feb 28, 2025

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/0047
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Reactive dye mixtures which comprise one or more dyes of the indicated general formula (i)and one or more dyes of the hereinbelow indicated and defined general formula (II)where D1, D2, D3, R0, R*, R**, T, b, f, v and M are each as defined in claim 1, the dyes of the general formulae (I) and (II) containing at least one fiber-reactive group of the formula —SO2-Z or Z2, their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing fiber material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.