Acidic hard surface cleaning comprising an ethoxylated quaternary ammonium/amine surfactant mixture
The present invention relates to hard surface cleaning compositions useful in cleaning, and optionally a disinfecting or sanitizing benefit which are particularly adapted to clean lavatory appliances, particularly toilets and the like. The compositions are largely aqueous, thickened, acidic compositions which comprise an acid, a thickening constituent or constituents which form a thickener system, at least one detersive surfactant and at least one superwetter surfactant which is based on a narrow range ethoxylated alcohol nonionic surfactant having two cloud points.
1. A largely aqueous, thickened, acidic composition which exhibits a pH of 4 or less, which comprises:
(a) at least one acid;
(b) a thickener system which comprises:
(b1) a film-forming fatty quaternary ammonium compound according to the following structure:
wherein R is a C 8 -C 32 alkyl chain, R′ is a lower C 1 -C 6 alkyl or alkylene group, the sum of both n is between 12-48, and X is a salt-forming counterion which renders the compound water soluble or water dispersible; and
(b2) an alkoxylated primary, secondary or tertiary fatty amine compound;
(c) at least one superwetter surfactant which is based on a narrow range ethoxylated alcohol nonionic surfactant having two cloud points wherein the narrow range ethoxylated alcohol nonionic surfactant having two cloud points is a C 9 -C 11 nonionic surfactant characterized by one or more of the following:
(i) having approximately 5.5 mols ethoxylation, and/or
(ii) exhibits an HLB value of about 12-12.4, and/or
(iii) when dispersed or dissolved at a 1% concentration in water, said narrow range ethoxylated alcohol nonionic surfactant exhibits one cloud point at 24-29° C. and a second cloud point at 55-58° C.; and
(d) at least one additional detersive surfactant.
2. A composition according to claim 1 wherein the at least one additional detersive surfactant comprises tallowtrimethylammonium chloride.
3. A composition according to claim 1 wherein the pH of the composition is 1 or less.
4. A composition according to claim 1 wherein the at least one acid is selected from the group consisting of citric acid, formic acid, hydrochloric acid, and mixtures thereof, to the exclusion of other acids.
5. A method for the cleaning of hard surfaces, which method includes the step of applying a cleaning effective amount of a composition according to claim 1 to provide a cleaning benefit.