Acid monomethine-metal complex dyestuffs
US4268668A · kind A · utility
2Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Oct 19, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B23/164
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An acid monomethine-metal complex dyestuff of the formula ##STR1## wherein M, Z, R, A, Y, n, a and b have the meaning given in the description. The acid metal complex dyestuffs of the formula I are valuable dyestuffs which are outstandingly suitable for dyeing and printing wool, silk and especially synthetic polyamides, such as NYLON and PERLON, in very clear shades ranging from yellow to blue, and are distinguished by high tinctorial strength, good build-up capacity and affinity and very good fastness characteristics, especially fastness to light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.