Aqueous silica suspensions and their applications in compositions based on inorganic binder
US6602935B2 · kind B2 · utility
2Cited by
16References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Nov 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2103/0082
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to an aqueous suspension 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−2 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.