Zinc dust, its preparation, and apparatus for preparing same
US3941609A · kind A · utility
11Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 22, 1973 |
| Grant date | Mar 2, 1976 |
| Priority date | — |
| Expiry date | Aug 22, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Zinc dust composed of generally spherical zinc dust grains and having a grain size distribution such that at least about 98% of the grains have a grain size less than 15 microns and no more than about 3% of the grains have a grain size less than 2 microns, and especially well adapted for use in corrosion-inhibiting coating compositions where thin but effective protective coatings are desired or required. The zinc dust has a metallic zinc content of about 96%-98%. The corrosion-inhibiting coating compositions, and apparatus and method for the preparation of such zinc dust are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.