Process for making solid-state radiation-emitting composition
US5240647A · kind A · utility
13Cited by
16References
17Claims
0Family size
Inventors
Key dates
| Filing date | Sep 3, 1991 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Sep 3, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a process for loading an aerogel substrate with tritium and the resultant compositions. According to the process, an aerogel substrate is hydrolyzed so that surface OH groups are formed. The hydrolyzed aerogel is then subjected to tritium exchange employing, for example, a tritium-containing gas, whereby tritium atoms replace H atoms of surface OH groups. OH and/or CH groups of residual alcohol present in the aerogel may also undergo tritium exchange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.