Method of making a composition containing a stable chlorite source
US5639295A · kind A · utility
53Cited by
34References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Oct 3, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B11/022
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a composite which provides sustained release of chlorine dioxide which includes mixing a hydrophilic material containing an amine and a base with a hydrophobic material containing an acid releasing agent, the hydrophilic and hydrophobic materials being adjacent and substantially free of water, to form a mixture. The mixture is exposed to chlorine dioxide which reacts with the amine to form iminium chlorite which is decomposed by the base to form a chlorite salt within the hydrophilic material. The hydrophilic material is capable of releasing chlorine dioxide upon hydrolysis of the acid releasing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.