Swellable materials and methods of use
US8367793B2 · kind B2 · utility
8Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 15, 2009 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Nov 4, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
One aspect of the present invention includes a swellable sol-gel composition including a plurality of interconnected organosilica nanoparticles. Another aspect of the present invention includes a swellable composite including a plurality of interconnected organosilica nanoparticles and a particulate material capable of binding to or reacting with a non-polar or organic sorbate. When dried, the sol-gel composition and the swellable composite may be capable of swelling to at least twice their dried volume when placed in contact with a non-polar or organic sorbate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.