Cationic polyoxometalate-coated alumina trihydrate dispersants
US9951196B2 · kind B2 · utility
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17References
25Claims
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Key dates
| Filing date | Oct 22, 2013 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Mar 23, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/22
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to polyoxometalate-coated alumina trihydrate dispersants prepared by combining a polyaluminum chloride having certain characteristics with alumina trihydrate particles. Such dispersants are useful for forming cationic alumina trihydrate slurries, which can be mixed with titanium dioxide to produce stable cationic slurry blends useful in paper, paper-board, and paint (coatings) applications. The dispersants are also useful for preparing cationic titanium dioxide slurries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.