Peroxide activation method and peroxide composition
AssigneeS. C. Johnson & Son, Inc.
InventorsTsuneo Kobayashi, Masahito Mikami, Shuzo Nakamura
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Abstract
Provided herein is a method of peroxide activation which comprises combining (1) an aqueous bleaching solution with hydrogen peroxide base, and (2) an aqueous solution containing as major components a sufficient amount of dicyandiamide for hydrogen peroxide activation, and an organic builder and/or inorganic builder, and maintaining the combined solution at alkaline pH. These solutions are stable when stored in separate containers. As needed, the solutions are mixed together. This invention is effective for bleaching soil and for removing mold, applicable for cleaning, bleaching, sterilizing or deodorizing in either domestic or industrial use.
Claims7
A method for peroxide activation of a hydrogen peroxide bleaching agent composed of two aqueous solutions, comprising:
- combining (1) an aqueous bleaching solution with hydrogen peroxide base, and (2) an aqueous solution containing as components an amount of dicyandiamide effective for hydrogen peroxide activation, and an organic builder and/or inorganic builder, and maintaining the combined solution at alkaline pH of at least 8.0;
- wherein solution (1) and solution (2) are stable for at least 30 days at 50.degree. C.;
- the molar ratio of dicyandiamide to hydrogen peroxide for hydrogen peroxide activation is in a range of 0.1 to 10:
- wherein the solutions are combined in a ratio of 1:10 to 10:1;
- the combined solution has a builder concentration of 0.05% to 10% by weight;
- and wherein the builder is selected from the group consisting of metal salts of ethylenediaminetetraacetic acid, dialkali metal salts of ethylene diaminetetraacetate, alkali earth metal salts, metal salts of nitriloacetate, citrates, carboxymethyoxysuccinates, tripolyphosphates, silicates, borates, carbonates, sulfonates and sulfates.
A bleaching kit, comprising (1) a first aqueous bleaching solution with hydrogen peroxide base, and (2) a second aqueous solution containing as components an amount of dicyandiamide effective for hydrogen peroxide activation, and organic builder and/or inorganic builder;
- wherein the first and second solutions are stable for at least 30 days at 50.degree. C.;
- the molar ratio of dicyandiamide to hydrogen peroxide for hydrogen peroxide activation is in a range of 0.1 to 10;
- wherein the first and second solutions are combined in a ratio of 1:10 to 10:1 to form a combined aqueous solution, the combined aqueous solution having a pH of at least 8.0, a builder concentration of 0.05 to 10 percent by weight;
- and wherein the builder is selected from the group consisting of metal salts of ethylenediaminetetraacetic acid, dialkali metal salts of ethylene diaminetetraacetate, alkali earth metal salts, metal salts of nitriloacetate, citrates, carboxymethyoxysuccinates, tripolyphosphates, silicates, borates, carbonates, sulfonates and sulfates.
Dependencies are inferred from the claim text.