Method of removing liquid from pores of a sol-gel monolith
US7001568B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Mar 30, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/03622
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method processes a gel monolith comprising pores filled with liquid, an inner region, and an outer region. The method includes removing a portion of the liquid from the pores of the gel monolith while both the inner and outer regions of the gel monolith remain wet. The method further includes shrinking the volume of the gel monolith during the removal of a portion of the liquid, with the gel monolith becoming correspondingly more dense. The method further includes subsequently removing substantially all of the remaining liquid from the pores of the gel monolith. Subsequently removing substantially all of the remaining liquid includes modulating a temperature gradient between the outer region and the inner region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.