Cleaning
AssigneeReckitt Benckiser (UK) Limited
InventorAdrian Blagg
Life of this patent
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Abstract
A two-liquid hard surface cleaner contains a thin alkaline liquid and a thin acidic liquid. Stabilised in the alkaline liquid is a compound which generates chlorine dioxide only under acidic conditions. An example is sodium chlorite. The liquids are mixed to form a thick cleaning composition. Ethoxylated alkyl sulphate surfactants have been found to be highly effective in achieving this effect of thickening on mixing. The thickened cleaning composition is acidic and causes the evolution of chlorine dioxide, which has a sterilising and bleaching effect. The resulting acidic liquid is also able to degrade limescale.
Claims19
A hard surface cleaner comprising a first precursor composition, being a thin alkaline liquid which contains a compound which generates chlorine dioxide under acidic conditions but not under alkaline conditions, and a second precursor composition, being a thin acidic liquid, wherein on mixing the first and second precursor compositions the resulting admixed cleaning composition is acidic, causing the compound to generate chlorine dioxide, and is more viscous than the first precursor composition and more viscous than the second precursor composition.
A hard surface cleaning pack comprising a first chamber containing a first precursor composition, being a thin alkaline liquid which contains a compound which generates chlorine dioxide under acidic conditions but not under alkaline conditions, and a second chamber containing the second precursor composition, being a thin acidic liquid, wherein the chambers are adapted for simultaneous, separate, dispensing of the first and second precursor compositions with downstream mixing thereof, wherein on mixing the first and second precursor compositions the resulting admixed cleaning composition is acidic, causing the compound to generate chlorine dioxide, and is more viscous than both first precursor compositions.
(canceled)
Dependencies are inferred from the claim text.