1:2 Chromium and cobalt complex dyes
US4427585A · kind A · utility
2Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 1981 |
| Grant date | Jan 24, 1984 |
| Priority date | — |
| Expiry date | Jul 27, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S534/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
1:2 Metal complex dyes of formula I ##STR1## and mixtures thereof with the metal complex dyes of formulae II and III ##STR2## wherein Me is chromium or cobalt and Q.sup..sym. is a cation. The dyes and dye mixtures are suitable for dyeing and printing natural or synthetic polyamide material. Printing pastes and padding liquors prepared from these dyes or mixtures have no tendency to gel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.