Anionic cyclodiylide compounds, their preparation and use in washing agents as shading dyes
US4908040A · kind A · utility
5Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1987 |
| Grant date | Mar 13, 1990 |
| Priority date | — |
| Expiry date | Oct 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## in which X, Y, A and M are as defined in claim 1, a process for their preparation and their use as shading dyes in washing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.