Process for producing metal flakes
US4743297A · kind A · utility
6Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1987 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Apr 3, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S75/954
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is disclosed for producing metal flakes. The process involves entraining the metal powder particles in a carrier gas and passing the powder particles through a high temperature zone at a temperature above the melting point of the powder particles to melt at least about 50% of the powder particles, resolidifying the resulting high temperature treated material by impacting the material against a substrate, and thereafter contacting the material with a non-oxidizing gas which can be nitrogen, argon, hydrogen, helium or combinations of these to remove the material from the substrate in the form of flakes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.