Granulated hydrophobic additive for cementitious materials
US7410538B2 · kind B2 · utility
9Cited by
23References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 20, 2001 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Dec 8, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/65
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A cementitious material in powder form comprising cement, also comprises sufficient of a granulated hydrophobing additive, which comprises form 5 to 15 parts by weight of an organopolysiloxane component, form 10 to 50 parts by weight of a water-soluble or water-dispersible binder and from 50 to 90 parts by weight of a carrier particle, to give from 0.01 to 5% by weight of the organosiloxane component based on the weight of the cement. The cementitious material displays good hydrophobicity, which may improve upon subsequent wettings of the applied cementitious material to a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.