Acidic cleaning compositions
AssigneeThe Procter & Gamble Company
InventorsMichel Jean Carrie, Eddy Vos
Life of this patent
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Abstract
Aqueous compositions comprise maleic acid and a surfactant consisting of a cationic surfactant, a zwitterionic surfactant, an amphoteric surfactant or mixtures thereof. Said compositions are substantially odor-free and do not contain any perfume.
Claims23
An aqueous composition having a pH of from about 0.1 to about 5 comprising an organic acid and surfactant, wherein said surfactant consists essentially of cationic surfactant, zwitterionic surfactant, amphoteric surfactant, and mixtures thereof;
- said composition is perfume-free;
- and said composition is substantially odor-free.
A process of descaling appliances wherein an acidic composition comprising a surfactant consisting of cationic, zwitterionic, amphoteric surfactants or mixtures thereof is applied in its neat form or in its diluted form to said appliances, then left to act and then removed by rinsing.
The process of descaling appliances by applying an effective amount of an aqueous composition having a pH of from about 0.1 to about 5, either in its neat form, or diluted, said composition comprising an organic acid selected from the group consisting of sulfamic acid, methanesulfonic acid, citric acid, phosphonic acid, hydrochloric acid, and mixtures thereof and additionally comprising maleic acid, and surfactant, wherein said surfactant consists essentially of cationic surfactant, zwitterionic surfactant, amphoteric surfactant, and mixtures thereof;
- said composition is perfume-free;
- and said composition is substantially odor-free.
Dependencies are inferred from the claim text.