Chlorine dioxide releasing composite article
AssigneeBASF SE
InventorsBarry K. Speronello, Linda Hratko, Michael S. Cochran
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Abstract
A composite article that includes a ClO2-producing material integrated into an organic matrix and methods of using the same are described. The organic matrix of the composite article is formable at a temperature under about 150° C., permits contact between an activating stimulus (e.g., water vapor and/or electromagnetic energy) and the ClO2-producing material when the composite article is exposed to the activating stimulus, and is permeable to ClO2.
Claims20
A composite article comprising a ClO2-producing material integrated into a hydrophilic organic matrix and optionally one of fibrous materials, plasticizers, pore formers, colorings, fragrances, desiccants, or combination thereof,
- wherein the ClO2-producing material comprises a chlorite-containing compound and an acidifying agent in an intimate physical mixture,
- wherein the composite article releases ClO2 when contacted by an activating stimulus comprising water vapor or water, and wherein light is not an activating stimulus for the composite article, and
- wherein the hydrophilic organic matrix:
- a) is formable at a temperature below about 150° C.;
- b) permits at least some contact between the activating stimulus and the ClO2-producing material when the composite article is exposed to the activating stimulus;
- and
- c) is permeable to ClO2.
A composite article consisting of a ClO2-producing material consisting of a chlorite-containing compound and an acidifying agent in an intimate physical mixture integrated into an organic matrix and optionally one of fibrous materials, plasticizers, pore formers, colorings, fragrances, desiccant, or combination thereof,
- wherein the composite article releases ClO2 when contacted by an activating stimulus comprising water vapor or water, and wherein light is not an activating stimulus for the composite article, and
- wherein the organic matrix:
- a) is formable at a temperature below about 150° C.;
- b) permits at least some contact between the activating stimulus and the ClO2-producing material when the composite article is exposed to the activating stimulus;
- and
- c) is permeable to ClO2.
Dependencies are inferred from the claim text.