Hydrophobic silica or silicate, compositions containing the same and methods for making and using the same
US4443357A · kind A · utility
17Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1981 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Jan 12, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/68
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Particulate silica or silicate made hydrophobic by heat treatment to form a reaction product with a hydrophobic alcohol, process for its preparation, and its use in defoaming compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.