Thermally responsive cobalt(III) complex imaging compositions having lowered activation temperatures
US4294912A · kind A · utility
7Cited by
3References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1980 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | Jul 17, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/137
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A dye-forming or imaging composition, element and method are disclosed, wherein a cobalt(III) complex containing releasable ligands is converted to cobalt(II) and the ligands by heating in the presence of a first destabilizer compound. The temperature at which the conversion reaction is initiated is unexpectedly lowered by the addition of a second, different destabilizer compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.