Water repellent organosilicon materials
US9758431B2 · kind B2 · utility
2Cited by
7References
12Claims
0Family size
Assignee
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Key dates
| Filing date | May 2, 2013 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Jul 2, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/53
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for increasing the hydrophobicity of a porous product by treating the product, or a composition providing for the product, with a water repellent material, characterized in that the porous product or a composition providing the product, is treated with an aqueous suspension of microcapsules where the microcapsules comprise a water repellent organosilicon core material selected from an organosilane, a partially condensed organosilane and a branched siloxane resin, and a shell of a silicon-based network polymer comprising silica units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.