Chrome-complex dyes and the production and use thereof
US4340536A · kind A · utility
2Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1980 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | May 14, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B45/482
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Chrome-complex dyes for dyeing natural and synthetic polyamide materials, which dyes, in the form of the free acid, correspond to the formula ##STR1## wherein X, W, R.sub.1, A, q, p, B, Z, D, Y and n have the meanings defined in claim 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.