Process for preparing an aqueous dispersion
US5663224A · kind A · utility
115Cited by
40References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1991 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Dec 3, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/024
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Inorganic material particles are dispersed in an aqueous medium with surface charge adjusting additives to give a moderately stable slurry or pigment grind. The dispersion can be used to prepare fully formulated compositions. Products formulated using the aqueous dispersion can be prepared to give the same performance as products including inorganic material dispersed with conventional polyelectrolyte pigment dispersants, but with higher levels of inorganic material, or superior performance properties with like levels of inorganic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.