Hydrophobic silica powder
US11691885B2 · kind B2 · utility
4Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Sep 5, 2018 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | May 9, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/82
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Provided is a hydrophobic silica powder that can be obtained by the sol-gel process, and that is excellent in charge properties. The hydrophobic silica powder has a hydrophobicity of 50% or more, a saturated water content of 4% or less, and a nitrogen content of 0.05% or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.