High-molecular weight organic material containing a metal complex pigment basaed on hydrazone
US5066695A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1989 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Jun 29, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
High-molecular weight organic material containing at least one metal complex of a ligand of formula I: ##STR1## wherein A is a carbocyclic aromatic or heterocyclic aromatic radical, B is a carbocyclic aromatic radical or a heterocyclic aromatic radical containing at least one N atom, it being necessary for at least one of the radicals A and B to be heterocyclic, and R.sub.1 is --C.sub.1 -C.sub.18 -alkyl, a carbocyclic aromatic radical or a heterocyclic aromatic radical containing at least one N atom, and the metal is a transition metal cation carrying a double positive charge selected from Ni.sup.2+, Cu.sup.2+, Co.sup.2+, Zn.sup.2+, Mn.sup.2+, Fe.sup.2+, Cd.sup.2+ or Pt.sup.2+ or the radical VO.sup.2+.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.