Mixtures of 1:2 cobalt complexes of monoazo compounds having an acetoacetanilide coupling component radical
US4165314A · kind A · utility
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2References
28Claims
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Key dates
| Filing date | Jul 5, 1977 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Jul 5, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B45/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Mixtures of symmetrical and asymmetrical 1:2 cobalt complexes of compounds of the formulae ##STR1## wherein, EACH R.sub.1, independently, is hydrogen or (C.sub.1-4)alkyl, and PA1 Each R.sub.2 and R.sub.3, independently, is hydrogen, halogen, (C.sub.1-4)alkyl or (C.sub.1-4)alkoxy, Which complexes are optionally in salt form and which mixtures are useful for dyeing or printing substrates dyeable with anionic dyes, e.g., natural and synthetic polyamides such as wool, silk and nylon, polyurethanes, polyofefins modified to contain basic groups, leather and metals such as anodically oxidized aluminum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.