Hydrophobic pigment modification
US10947392B2 · kind B2 · utility
0Cited by
4References
10Claims
0Family size
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Key dates
| Filing date | Apr 3, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Jun 7, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D17/008
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is a composition comprising an aqueous dispersion of metal oxide pigment particles coated with a polymer comprising structural units of an alkyltrihydroxysilane or a salt thereof and a dialkyldihydroxysilane or a salt thereof. The composition of the present invention provides hydrophobicity to pigment particles, thereby imparting water resistance, and allows for high loadings of pigment in water without increased viscosity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.