Opacifying kaolin clay pigments having improved rheology and process for the manufacture thereof
US5584924A · kind A · utility
9Cited by
6References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1994 |
| Grant date | Dec 17, 1996 |
| Priority date | — |
| Expiry date | Aug 26, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An opacifying kaolin clay pigment with improved rheological properties and good opacifying characteristics is manufactured by a process which comprises reacting a mixture of water, kaolin clay and calcium carbonate with a hydroxide component at a temperature of at least 60.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.