Method of solution doping a sol gel body via immersion
US6178780A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1997 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jun 2, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C1/006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A porous body 4 and a first immersing solution 6 are put in a vessel 5 in proportions such that the whole of the porous body 4 is immersed in the immersing solution, and the immersing is conducted for an arbitrary period of time. The vessel 5 is formed so as to have a depth greater than the height of the porous body 4. A vessel-capacity changing device 7 is inserted in the vessel 5. The first immersing solution 6 overflows from the interstice between the vessel-capacity changing device 7 and the vessel 5. A second immersing solution 8 is poured through a charging port, and simultaneously the vessel-capacity changing device 7 is lifted to thereby remove the same from the immersing solution. Thus, the porous body 4 is immersed in the second immersing solution 8 without being exposed to the outside air to thereby complete solution replacement. The immersing of the porous body can be effected safely, securely and at a lowered cost without damaging the porous body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.