Thickened aqueous peracid compositions

Details Thickened aqueous peracid compositions Thickened aqueous peracid compositions

1996-05-22

1998-03-31

Anthony, Joseph D.

Compositions

Oxidative bleachant, oxidant containing, or generative

Composition containing a stabilizer or a product in the form...

25218622, 25218626, 25218627, 25218628, 25218629, 422 28, C01B 1501, C01B 1510, A61L 218

Patent

active

057334749

ABSTRACT:
Many aqueous compositions containing a peroxygen compound have a very low viscosity and thus easily run off non-horizontal surfaces. Particularly, when the peroxygen compound is a soluble peracid, the compositions are difficult to thicken successfully, because many commonly available thickening systems for aqueous media either fail to thicken them or are decomposed and/or decompose the peroxygen compound substantially during storage. The compositions, preferably containing a soluble peracid, are thickened with an alkali metal silicate, preferably sodium silicate, such as Na.sub.2 O(SiO.sub.2).sub.2 used suitably in an amount of from about 2 to 6% of the composition and normally introduced in the form of a concentrated aqueous composition. The compositions may contain additionally an alkylammonium methosulphate. Preferred peracid solutions include dilute equilibrated peracetic acid solutions. The solutions when thickened to form a viscous liquid are suitable for disinfecting hard surfaces and when thickened to form a gel are suitable for suspension in an aqueous medium, for example in block form.

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patent: 2590856 (1952-04-01), Greenspan
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patent: 3996152 (1976-12-01), Edwards et al.
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patent: 4725281 (1988-02-01), Stemlin et al.
patent: 4800036 (1989-01-01), Rose et al.
patent: 5039447 (1991-08-01), Reuben
patent: 5296239 (1994-03-01), Colery et al.

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