Compositions for reducing inhalation of toxic air pollution components
The present invention relates to a composition, textile, and mask for reducing the inhalation of pollutants. The composition includes an aqueous solution of an inorganic iodide compound, a metal phthalocyanine, and a polymeric binder. The inorganic iodide can be cuprous iodide, the metal phthalocyanine can be iron phthalocyanine, and the polymeric binder can be polyvinylpyrrolidone or polyvinyl alcohol. This pollutant-inactivating composition neutralizes pollutants such as nitrogen dioxide, sulfur dioxide, ozone, volatile organic compounds and other unpleasant airborne agents, without requiring elevated temperatures or bulky canisters containing adsorbents. Optionally, a humectant can also be incorporated into the coating solution to retain moisture in the active filter matrix, which enhances the activity of the composition to inactivate oxidizing gases and other toxic constituents of air pollution.
1. A composition for coating textiles or filter materials to reduce hazards associated with exposure to air pollution, the composition comprises an aqueous solution of (i) an inorganic iodide compound, (ii) a metal phthalocyanine, and (iii) polyvinylpyrrolidone.
2. The composition of claim 1 , wherein the inorganic iodide compound is cuprous iodide, the metal phthalocyanine is iron phthalocyanine.
3. The composition of claim 1 further comprising a humectant selected from at least one of a non-ionic surfactant comprising a sugar alcohol moiety including but not limited to polysorbate 20, polysorbate 40, polysorbate 60, polysorbate 80, sodium pyroglutamate, xylitol and sorbitol.
4. The composition of claim 3 , wherein (i) cuprous iodide is between 0.25% and 5% by weight of the aqueous solution, (ii) iron phthalocyanine is between 0.25% and 2% by weight of the aqueous solution, (iii) the polyvinylpyrrolidone is between 1% and 5% of the aqueous solution, and (iv) polysorbate 20 is between 0.5% and 1% of the aqueous solution.
5. The composition of claim 1 further comprising titanium dioxide.
6. The composition of claim 1 further comprising cyclodextrin.
7. A textile having fibers coated with the composition of claim 1 .
8. The textile of claim 7 wherein the textile is selected from at least one of polyester, polypropylene, polyethylene, nylon, rayon and cotton.
9. The composition of claim 4 , wherein (i) the inorganic iodide compound is between 0.25% and 5% by weight of the aqueous solution, (ii) the metal phthalocyanine is between 0.25% and 2% by weight of the aqueous solution, (iii) the polyvinylpyrrolidone is between 1% and 5% of the aqueous solution, (iv) the humectant agent is between 0.5% and 1% of the aqueous solution.