Environmentally acceptable acidic lavatory treatment compositions
View Patent ↗Aqueous, thickened, acidic compositions which exhibit a pH of about 7 or less preferably 5 or less, and comprise an organic acid constituent selected from formic acid, citric acid and oxalic acid, a thickening constituent or constituents based on one or more gums, particularly xanthan gum which form a thickener system in the inventive composition, and at least one detersive surfactant based on glycoside surfactants, water in an amount of at least 85% wt., preferably at least about 90% wt., and one or more further optional constituents, wherein the compositions exclude: (a) surfactant compounds which include a nitrogen atom in the surfactant compound, and (b) inorganic acids.
1. A liquid, pourable or sprayable aqueous, thickened hard surface cleaning composition comprising:
an organic acid constituent selected from the group consisting of: formic acid, citric acid and oxalic acid,
a polysaccharide based thickening constituent present in an amount of up to about 0.4% wt.,
and at least one detersive surfactant based on glycoside surfactants present in an amount of up to about 1.27% wt.,
water in an amount of at least 70% wt., and
optionally one or more further optional constituents, with the proviso that the compositions exclude one or more of: (a) organic acids other than formic acid, citric acid and oxalic acid, (b) inorganic acids, (c) organic solvents selected from glycols, glycol ethers, ether acetates, and alcohols, (d) thickeners other than polysaccharide based thickeners, and (e) chelating agents based on nitrogen containing organic compounds which include a plurality of carboxylic acid groups.
2. A composition according claim 1 , characterized in that at least two of (a), (b), (c), (d) and (e) are excluded from the composition.
3. A composition according claim 2 , characterized in that at least three of (a), (b), (c), (d) and (e) are excluded from the composition.
4. A composition according claim 3 , characterized in that at least four of (a), (b), (c), (d) and (e) are excluded from the composition.
5. A liquid, pourable or sprayable, aqueous, thickened hard surface cleaning composition comprising:
an organic acid constituent selected from the group consisting of: formic acid, citric acid and oxalic acid,
a polysaccharide based thickening constituent:
and at least one detersive surfactant based on glycoside surfactants;
water in an amount of at least 70% wt., and
optionally one or more further optional constituents, with the proviso that the compositions exclude: (a) organic acids other than formic acid, citric acid and oxalic acid, (b) inorganic acids, (c) organic solvents selected from glycols, glycol ethers, ether acetates, and alcohols, (d) thickeners other than polysaccharide based thickeners, and (e) chelating agents based on nitrogen containing organic compounds which include a plurality of carboxylic acid groups.
6. A composition according to claim 1 , characterized in that (b) inorganic acids, (c) organic solvents selected from glycols, glycol ethers, ether acetates, and alcohols, (d) thickeners other than polysaccharide based thickeners are excluded from the composition.
7. A composition according to claim 1 , characterized in that (b) inorganic acids, (c) organic solvents selected from glycols, glycol ethers, ether acetates, and alcohols, (d) thickeners other than polysaccharide based thickeners, and (e) chelating agents based on nitrogen containing organic compounds which include a plurality of carboxylic acid groups are excluded from the composition.
8. A composition according to claim 1 , wherein the composition has a pH of from 1.5 to 3.
9. A composition according to claim 1 which further comprises an aerosol propellant.
10. A composition according to claim 9 , wherein the aerosol propellant is selected from liquid propellants and pressurized gases.
11. A composition according to claim 1 , wherein the organic acid constituent comprises between 0.5-8% wt. of the composition.
12. A composition according to claim 1 , wherein the polysaccharide thickener constituent comprises 0.001-5% wt. of the composition.
13. A composition according to claim 1 wherein the polysaccharide based thickener is xanthan gum.
14. A composition according to claim 1 , wherein one or more surfactants based on glycosides are the sole surfactants present in the compositions of the invention.
15. A composition according to claim 5 , wherein the composition has a pH of from 1.5 to 3.
16. A composition according to claim 5 which further comprises an aerosol propellant.
17. A composition according to claim 5 , wherein the organic acid constituent comprises between 0.5-8% wt. of the composition.
18. A composition according to claim 5 , wherein the polysaccharide thickener constituent comprises 0.001-5% wt. of the composition.
19. A composition according to claim 5 wherein the polysaccharide based thickener is xanthan gum.
20. A composition according to claim 5 , wherein one or more surfactants based on glycosides are the sole surfactants present in the compositions of the invention.