Method and composition of humidity-controlled generation of chlorine dioxide in polymers and superabsorbent hydrogels
US11358863B2 · kind B2 · utility
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Key dates
| Filing date | Jan 30, 2020 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Jun 7, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/404
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A composition and method for chlorine dioxide production through reaction-diffusion chemistry that facilitates the in situ generation of chlorine dioxide, wherein a dry solid composition of hydroxymethanesulfinic acid monosodium salt dihydrate (abbreviated HMS) and a chlorine dioxide precursor are activated via the addition or absorption of water to produce chlorine dioxide. The dry solid chemical composition comprises dry, safe, transportable reagents that integrate with polymeric materials such as packaging and superabsorbent and stimuli-responsive hydrogel polymers to combine with water to produce chlorine dioxide.
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