Metal complexes of bishydrazides
US3988323A · kind A · utility
11Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Dec 12, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1:1- and 2:1-metal complexes of bishydrazides of the formula I ##SPC1## wherein both A's represent identical or different isocyclic or heterocyclic aromatic radicals, B represents an isocyclic or heterocyclic aromatic radical, and R represents hydrogen, an alkyl group containing 1 - 6 carbon atoms, or an alkyl radical, and the complexing metal ions are bivalent cations of the transition metals, zinc ions or cadmium ions which are useful for pigmenting high molecular organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.