Method of making thin refractory flakes
US4985380A · kind A · utility
7Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1989 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Apr 17, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/485
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Thin flakes can be made from a sol of metal oxides by a method analogous to blowing soap bubbles, preferably by directing a laminar flow of air through a narrow, annular orifice. The bubbles can be dried and broken into fragments which are fired to produce refractory flakes that can be incorporated into protective coatings. The resulting coatings can be pearlescent while also affording good resistance to abrasion and to corrosive materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.