Patent · US Expired

Deep black dye mixtures of fiber-reactive azo dyes

US6464734B1 · kind B1 · utility

3Cited by

15References

11Claims

0Family size

Assignee

DyStar Textilfarben GmbH & Co. Deutschland KG · DE

Inventors

Joachim Steckelberg · Brunsbüttel, DE
Ronald Pedemonte · Wesley Chapel, US
Manfred Hoppe · Kürten, DE

Key dates

Filing date	Mar 13, 2000
Grant date	Oct 15, 2002
Priority date	—
Expiry date	Mar 13, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/924
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention claims a dye mixture comprising at least one dyestuff of the general formula (1) and at least one dyestuff of the general formula (2) whereM, Y1, Y2, Y3, R1, R2, R3, R4, R5, R6, W, V, L and G are defined as given in claim 1, a process for its preparation and its use for dyeing and printing hydroxyl-and/or carboxamido-containing material.

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