Aqueous dispersion of a hydrophobic silica
US4274883A · kind A · utility
38Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1979 |
| Grant date | Jun 23, 1981 |
| Priority date | — |
| Expiry date | Sep 18, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aqueous dispersion of a hydrophobic silica consisting of 0.1 to 50 parts of hydrophobic silica, in a given case up to 3 parts of wetting agent and 99.9 to 50 parts of water. It is produced by intensive mixing of hydrophobic silica with water with the known "dry-water-phase" as an intermediate step. In a given case there can additionally be used a wetting agent in which case the "dry-water-phase" does not occur. The dispersion of hydrophobic silicas can be mixed without additional steps or materials with rubber latex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.