Highly oil absorbing amorphous silica particles
US7488533B2 · kind B2 · utility
3Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jul 30, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to amorphous silica particles having high oil absorbance capabilities, a process for their preparation and use thereof. The amorphous silica particles of the invention, wherein oil absorption measured by JISK 6217-4 is more than 400 ml/100 g can be obtained by baking at least 200 to 990° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.