Patent · US Expired

Azo dye mixtures and their use

US5599354A · kind A · utility

1Cited by
4References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 5, 1996
Grant dateFeb 4, 1997
Priority date
Expiry dateFeb 5, 2016

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B67/0046
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

The invention relates to dye mixtures consisting of PA1 (a) 0-100% by weight of at least one dye mixture comprising a compound of the formula ##STR1## and a compound of the formula ##STR2## (b) 0-100% by weight of at least one dye mixture comprising a compound of the formula ##STR3## and a compound of the formula ##STR4## in which the variables are as defined in the claims and the sum of (a) and (b) is 100% by weight. The dye mixtures according to the invention are suitable for dyeing or printing hydroxyl-containing or nitrogen-containing fibre materials and give dyeings or prints having good all-round fastness properties.

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