Paints containing low sheen opacifying pigments obtained by flux calcination of kaolin clay
US6346145B1 · kind B1 · utility
14Cited by
14References
3Claims
0Family size
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Key dates
| Filing date | Aug 2, 2000 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Aug 2, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Flux calcined kaolin clay especially useful as a pigment for low sheen paints is obtained by mixing hydrous kaolin with an aqueous solution of alkaline flux, spray drying, pulverizing, calcining and repulverizing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.