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US 4,731,223 AGranted
Composition for automatic cleaning of toilet bowls
AssigneeCotelle, S.A.
InventorsLucienee Forestier, Francois-Xavier Bonnet, Alain Lacroix
Life of this patent
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Abstract
A composition for the automatic cleaning of toilet bowls includes at least one amine oxide, at least one appropriate colorant and at least one pH regulating agent, the composition being such that the pH of the aqueous mixture in the toilet bowl is about 6.3.+-.0.5. The composition is applied by filling containers designed to be used especially in the reservoir or tank of the toilet bowl.
Claims2
A method of automatically cleaning a toilet bowl which comprises the steps of:
- (a) applying to the toilet tank or to the toilet bowl an effective amount for cleaning of a composition which comprises at least one coloring agent which remains stable even in the presence of a chlorine-containing disinfectant, and which further comprises a combination of at least one amine oxide with a pH regulating agent in order to maintain the pH of the resulting aqueous mixture in the toilet bowl at about 6.3.+-.0.5;
- and
- (b) forming a protective coating of the amine oxide on the inner walls of the toilet bowl to prevent fecal material as well as the coloring agent from adhering thereto.
Dependencies are inferred from the claim text.