S. C. Johnson Son, Inc.

Debra S Hilgers

Wayne M Rees

Timothy I Moodycliffe

Margaret Coyle-Rees

A method of substantially reducing biofilm-associated microorganisms on a surface and a composition designed to substantially reduce biofilm-associated microorganisms on surfaces are disclosed. In one embodiment, the composition is an anionic surfactant selected from the group consisting of alkyl sulfates, alkyl sulfonates, and aryl sulfonates with alkyl or aryl substituents, an acid, and an alcohol solvent, wherein the pH of the composition is between pH 1 and pH 5.

Biocidal cleaner composition containing acid-anionic surfactant-alcohol combinations and method of using the composition

A low residue antimicrobial solution containing about 0.2 percent by weight of an acid selected from the group consisting of organocarboxylic acids; and about 2 percent of a volatile solvent selected from the group consisting of n-butanol, benzyl alcohol, phenylethanol, and sparingly soluble glycol ether solvents is disclosed. Preferred compositions may also contain about 0.1 percent anionic sulfated or sulfonated surfactants and about 5 percent co-solvent selected from the group consisting of completely water soluble monoprotic aliphatic alcohols and glycol ethers. The solution may be also employed as a low-residue cleaner for soiled hard surfaces.

Acidic hard-surface antimicrobial cleaner

The antimicrobial efficacy of N-chlorosulfamate solutions, namely buffered aqueous combinations of HClNSO (mono-N-chlorosulfamate) and Cl NSO (di-N-chlorosulfamate), herein referred to as &ldquo;stabilized hypochlorite&rdquo;, can be markedly enhanced by the addition of certain organic dopants. The dopants themselves are select hypochlorite stabilizing agents, which are known to readily form stable organochloramides when reacted with &ldquo;free&rdquo; hypochlorite (HOCl or NaOCl). Highly effective antimicrobial enhancing dopants include 5,5-dialkyl hydantoins, arylsulfonamides, and succinimides. Examples of these include 5,5-dimethylhydantoin, benzenesulfonamide, and succinimide. Other, less effective dopants include glycolurils. Generally, the dopant is present in a minor mole fraction, relative to the molar amount of stabilized hypochlorite present in the enhanced antimicrobial solution.

N-chlorosulfamate compositions having enhanced antimicrobial efficacy

The composition of this invention is a stabilized acidic bleaching composition comprising an aqueous solution of a source of source of unipositive chlorine ion, a chlorine stabilizing agent, and an acidic buffer to stabilize the pH of the bleaching composition in the range from about 2 to 6.5, wherein the chlorine stabilizing agent and the source of source of unipositive chlorine ion are in a molar ratio of greater than about 1:1. Methods are described for removal of lime scale from a hard surface controlling microbial activity as well as reducing malodor by applying the composition of this invention.

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Racine, WI, United States of America

Debra S Hilgers