Composition, foam and process for the decontamination of surfaces
US7662754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 4, 2003 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Apr 4, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a composition which makes it possible to obtain a gelled aqueous foam capable of decontaminating, stripping or degreasing a surface. The composition of the present invention comprises one or more surfactants, one or more acidic or basic reactants and a gelling agent.The decontamination foam obtained from this composition exhibits long lifetimes, generally of between 1 and 10 hours, guaranteeing a prolonged time of action on the surface and a high decontamination effectiveness. These foams can be used to remove the radioactivity from an inaccessible plant, which is large in size and complex in design, by simple filling or by simple spraying over an accessible surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.