Bis-2-azomethine pigments, process for their manufacture and their use
US3939194A · kind A · utility
6Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1975 |
| Grant date | Feb 17, 1976 |
| Priority date | — |
| Expiry date | Jan 2, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B55/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Bis-azomethine pigments of the formula ##SPC1## Wherein X denotes an aromatic radical on which the imino groups are in the o-position, Y denotes a hydroxyl, alkoxy, cycloalkoxy, aralkoxy or aryloxy, amino, alkylamino or arylamino group and Z denotes a H or halogen atom or an alkoxy, nitro or nitrile group, the radical X having to be free of nitro groups if Y denotes an arylamino group and Z denotes a H atom, as well as metal complexes of these bis-azomethines are useful for coloring plastics and lacquers in yellow to red shades of good fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.