Aqueous suspension including a mixture of at least one aqueous suspension of precipitated silica and of at least one latex
US6409822B1 · kind B1 · utility
1Cited by
16References
11Claims
0Family size
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Key dates
| Filing date | Feb 4, 1999 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/0082
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aqueous suspension is provided including a mixture of at least one aqueous suspension of precipitated silica and of at least one latex, in which the aqueous suspension of precipitated silica has a solids content of between 10 and 40% by weight, has a viscosity lower than 4×10−2 Pa s at a shear of 50 s−1 and, after centrifuging at 7500 revolutions per minute for 30 minutes, produces a supernatant containing more than 50% of the weight of the silica initially in suspension.This suspension can be employed in compositions based on an inorganic binder and in concrete compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.