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A composition that generates a target product and releases a biocidal solution containing the target product is presented. The composition comprises reactants capable of generating the target product through a chemical reaction, a halogen, and a gel-forming material. The chemical reaction is trigger

A composition that generates a target product and releases a biocidal solution containing the target product is presented. The composition comprises reactants capable of generating the target product through a chemical reaction, a halogen, and a gel-forming material. The chemical reaction is triggered when the reactants are contacted by a main solvent (e.g., water). The gel-forming material makes the composition stable for storage. Upon being exposed to the main solvent, the gel-forming material forms a gelatinous structure that creates a chamber within the composition enclosing some of the reactants such that the target product is generated in the chamber. The gelatinous structure contributes to the high yield of the target product (e.g., chlorine dioxide) and its controlled release. The halogen (e.g., bromine and/or chlorine) enhances the biocidal effect of the target product.

대표청구항 ▼

What is claimed is: 1. A water-soluble composition that generates chlorine dioxide with a yield of at least 14 weight % and a chlorite conversion to chlorine dioxide of at least 70 weight %, and releases a biocidal solution containing chlorine dioxide and free halogen, wherein the composition compr

What is claimed is: 1. A water-soluble composition that generates chlorine dioxide with a yield of at least 14 weight % and a chlorite conversion to chlorine dioxide of at least 70 weight %, and releases a biocidal solution containing chlorine dioxide and free halogen, wherein the composition comprises: reactants capable of in-situ generating chlorine dioxide through a chemical reaction when contacted by a main solvent, the reactants including a free halogen donor, an acid source different from the free halogen donor and a chlorite donor, wherein the chlorite donor is about 9-50 weight % of the composition, the acid source is about 10-80 weight % of the composition and the free halogen donor is from about 0.5 to 40 weight % of the composition; wherein said free halogen donor encapsulates and at least said chlorite donor; and a gel-forming material in contact with the reactants, wherein the gel-forming material makes up about 0.1 to 10 weight % of the composition and upon being exposed to the main solvent, forms a gelatinous structure that creates a chamber within the composition enclosing the reactants such that the chlorine dioxide is generated in the chamber, wherein the gelatinous structure restricts diffusion of the reactants and the chlorine dioxide out of the chamber, restricts the diffusion of the main solvent into the chamber, and wherein the gelatinous structure dissipates when a depletion level is reached inside the chamber; wherein different parts of the composition are exposed to the main solvent at different times. 2. The composition of claim 1, wherein the free halogen donor is at least one of a chlorinated isocyanuric acid, chlorinated hydantoin, and brominated hydantoin. 3. The composition of claim 1, wherein the free halogen donor comprises bromine. 4. The composition of claim 1, wherein the free halogen comprises chlorine. 5. The composition of claim 1, wherein the biocidal solution contains chlorine dioxide, at least one free bromine derivative, and at least one free chlorine derivative. 6. The composition of claim 1, wherein the reactants for generating the target product are in the form of an agglomerate. 7. The composition of claim 6, wherein the agglomerate is in the form of a tablet. 8. The composition of claim 6, wherein the agglomerate contains the gel-forming material inside said agglomerate. 9. The composition of claim 1, wherein the reactants are coated with the gel-forming material. 10. The composition of claim 9, wherein the gel-forming material encapsulates the reactants by forming a coating. 11. The composition of claim 9, wherein the gel-forming material forms a membrane upon contacting the main solvent. 12. The composition of claim 1, wherein the biocidal solution provides virucidal, fungicidal, and algicidal effect. 13. The composition of claim 1 further comprising a solubility-reducing additive. 14. The composition of claim 13, wherein the solubility-reducing additive comprises a substantially water-insoluble hydrocarbon-based wax. 15. The composition of claim 13, wherein the solubility-reducing additive is a mineral salt of carboxylic acid having at least 16 carbons. 16. The composition of claim 13 further comprising a non-ionic surfactant that stabilizes chlorine dioxide in a recirculating body of the main solvent. 17. The composition of claim 1, wherein the free halogen donor comprises one or more of: chlorinated isocyanuric acid, trichloroisocyanuric acid (TCCA), and dicloroisocyanuric acid, brominated hydantoin, dibromodiniethylhydantoin, bromochlorodimethyl hydantoin, and chlorinated hydantoin. 18. The composition of claim 1, wherein the acid source comprises potassium monopersulfate. 19. The composition of claim 1, wherein the acid source comprises sodium bisulfate. 20. A water-soluble composition that generates chlorine dioxide with a yield of at least 14 weight % and a chlorite conversion to chlorine dioxide of at least 70 weight %, and releases a biocidal solution containing chlorine dioxide and free halogen, wherein the composition comprises: reactants capable of in-situ generating chlorine dioxide through a chemical reaction when contacted by a main solvent, the reactants including a free halogen donor, an acid source different from the free halogen donor and a chlorite donor, wherein the chlorite donor is about 9-50 weight % of the composition, the acid source is about 10-80 weight % of the composition and the free halogen donor is from about 0.5 to 40 weight % of the composition; wherein said free halogen donor sandwiches at least said chlorite donor and a gel-forming material in contact with the reactants, wherein the gel-forming material makes up about 0.1 to 10 weight % of the composition and upon being exposed to the main solvent, forms a gelatinous structure that creates a chamber within the composition enclosing the reactants such that the chlorine dioxide is generated in the chamber, wherein the gelatinous structure restricts diffusion of the reactants and the chlorine dioxide out of the chamber, restricts the diffusion of the main solvent into the chamber, and wherein the gelatinous structure dissipates when a depletion level is reached inside the chamber; wherein different parts of the composition are exposed to the main solvent at different times. 21. The composition of claim 20, wherein the free halogen donor is at least one of a chlorinated isocyanuric acid, chlorinated hydantoin, and brominated hydantoin. 22. The composition of claim 20, wherein the free halogen comprises bromine. 23. The composition of claim 20, wherein the biocidal solution contains chlorine dioxide and at least one free bromine derivative. 24. The composition of claim 20, wherein the free halogen comprises chlorine. 25. The composition of claim 20, wherein the biocidal solution contains chlorine dioxide, at least one free bromine derivative, and at least one free chlorine derivative. 26. The composition of claim 20, wherein the reactants for generating the target product are in the form of an agglomerate. 27. The composition of claim 26, wherein the agglomerate contains the gel-forming material inside said agglomerate. 28. The composition of claim 26, wherein the reactants are coated with the gel-forming material. 29. The composition of claim 28, wherein the gel-forming material encapsulates the reactants by forming a coating. 30. The composition of claim 29, wherein the gel-forming material forms a membrane upon contacting the main solvent. 31. The composition of claim 20, wherein the biocidal solution provides virucidal, fungicidal, and algicidal effect. 32. The composition of claim 20, further comprising a non-ionic surfactant that stabilizes chlorine dioxide in the main solvent. 33. The composition of claim 20, wherein the free halogen donor comprises one or more of: chlorinated isocyanunc acid, trichloroisocyanuric acid (TCCA), and dicloroisocyanuric acid, brominated hydantoin, dibromodimethylhydantoin, bromochlorodimethyl hydantoin, and chlorinated hydantoin. 34. The composition of claim 1, wherein the acid source comprises potassium monopersulfate. 35. The composition of claim 1, wherein the acid source comprises sodium bisulfate.