Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – With oxygen or halogen containing chemical bleach or oxidant...
Patent
1998-03-17
2000-10-03
Brouillette, Gabrielle
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
With oxygen or halogen containing chemical bleach or oxidant...
510108, 510238, 510367, 510372, 510406, 25218643, C11D 300
Patent
active
061273309
ABSTRACT:
A process for bleaching and/or providing limescale removal at a surface, by applying to that surface an aqueous composition having a pH of 2 or less and comprises a mixture of (a) an aqueous composition comprising hydrogen peroxide or an organic peracid having a pH of greater than 2 but less than 7 and (b) an acidic composition wherein components (a) and (b) are mixed not more than two hours before being applied to the surface requiring bleaching and/or limescale removal. The organic acid of component (a) has the formula XC (O)OOH where X is hydrogen or CH.sub.3 (CH.sub.2).sub.n and n is 0 to 8. The acid composition (b) comprises hydrochloric, sulphamic, tartaric, phosphoric, oxalic, citric, salicylic or ascorbic acids.
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Copy of International Search Report for Int'l Appln. No. PCT/GB96/00054 dated Dec. 6, 1996.
Brouillette Gabrielle
Reckitt & Colman Products Limited
Toomer Cephia D.
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