Process for preparing copper pyrithione
US5650095A · kind A · utility
14Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/89
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for producing a gel-free dispersion or solution of copper pyrithione employing at least one surfactant. Also claimed is the dispersion or solution itself, as well as a solid particulate copper pyrithione composition comprising copper pyrithione particles having a particle shape selected from the group consisting of rods, spheres, needles, platelets and combinations thereof, and optionally containing at least a trace amount of a surfactant on the outer surface of at least a portion of said particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.