Disperse dyes
US5420254A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1993 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Oct 19, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B31/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula I ##STR1## in which D is a diazo component, PA1 K is an aromatic group of formula a, b or c, ##STR2## Y is C.sub.2-3 alkylene and the remaining symbols are as defined in the specification. These compounds are useful for dyeing or printing textile substrates based on synthetic or semisynthetic, hydrophobic, high molecular weight organic materials. Preferably, the textile substrate is made from a linear aromatic polyester, cellulose 21/2 acetate or cellulose tri-acetate. The dyeings and prints obtained show good all round fastness properties such as good thermomigration properties, lightfastness, thermofixation, blistering properties as well as good wet fastness properties, especially after thermal fixation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.