Storage-stable aqueous solutions of chlorine dioxide and methods for preparing and using them
US11135326B2 · kind B2 · utility
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Key dates
| Filing date | Jan 30, 2017 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Jan 30, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Stable, aqueous solutions of chlorine dioxide and methods for producing stable, aqueous solutions of chlorine dioxide are disclosed. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 1000 ppm by weight or less of total impurities and/or 10 ppm or less of manganese and iron combined. The aqueous chlorine dioxide solutions are storage stable for at least 90 days at 25° C. and maintain at least 75% of the initial chlorine dioxide concentration. Methods of preparing, using and transporting the chlorine dioxide solutions are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.