S. C. Johnson Son, Inc.

Richard W Avery

Colin William Brown

Timothy I Moodycliffe

Ian C Callaghan

Frederick H Martin

Sean G Dwyer

An aqueous composition formed by mixing a hydrolyzable silicon compound having a low solubility in water (e.g a fluorosilane), a major proportion of water, and a surfactant, also contains an effective amount of a co-solvent (e.g. certain glycol ethers) which is sparingly soluble in water to improve the stability of the composition. The composition may be used for surface treatment.

Production of stable hydrolyzable organosilane solutions

A single pack pourable liquid hypochlorite bleach cleaning composition for cleaning a flushable toilet bowl wherein at least 50% by weight of the hypochlorite comprises potassium hypochlorite and which liquid contains a bleach-resistant organic sequestering agent having a molecular weight below 1500 which sequesters calcium.

Cleaning of toilet bowls using liquid hypochlorite compositions

A method of improving the stability and broadening the range of pH stability of an aqueous solution of from about 0.001% to 5% by weight of a water soluble organosilane containing hydrolyzable groups such as methyltrimethoxysilane, 3-(trimethoxysilyl)propyldimethyloctadecyl ammonium chloride and 3-(trimethoxysilyl)propylmethyldi(decyl) ammonium chloride by the use of 0.05% to 10% by weight of a water soluble organic quaternary ammonium compound having at least one nitrogen-bonded hydrocarbon group of at least 8 carbon atoms and being free of silicon atoms, such as benzalkonium chloride, along with from about 0.5% to 30% by weight of at least one surfactant selected from the group consisting of nonionic, amphoteric sarcosine anionic, and cationic surfactants other than the water soluble quaternary ammonium compounds. The pH of the solution can be adjusted to from about 1 to about 13.5 with a suitable acid or base. The resulting stable aqueous solutions are useful for depositing the water soluble organosilane on a variety of substrates to, among other things, serve as coupling agents, waterproofing agents and to render substrates antimicrobial and algicidal depending upon the nature of the organosilane.

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Racine, WI, United States of America

Richard W Avery