Toilet bowl cleaning tablet with uniform dissolution of components and bleaching compound
AssigneeThe Clorox Company
InventorsJames E. Rader, Erika W. Feller, Rachel A. Watson-Clark
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Abstract
A cleaning formulation, in tablet form, capable of providing uniform delivery of cleaning agents, fragrance and colorants while immersed in a the tank of a toilet. The tablet comprises a solubility-controlling matrix of a linear alkyl benzene sulfonate, and an alkyl sulfate surfactants, a monoalkanolamide dissolution control agent, a hydroxyethylcellulose binder; and cleaning actives including a peroxygen bleach, organic and inorganic salts, and aesthetic agents to signal ongoing cleaning effectiveness
Claims12
A composite cleaning block, providing substantially complete and uniform dissolution of all components, the block comprising a substantially uniform mixture formed by:
- (a) dry blending about 3% to 15% of an alkyl sulfate surfactant, about 2% to 15% of a dissolution control agent, about 5% to 25% of a binder, about 3% to 30% of a linear alkyl sulfonate surfactant, with a bleaching compound selected from the group consisting of sodium monopersulfates, potassium monopersulfate, disodium monoperphosphate, dipotassium monoperphosphate, and mixtures thereof, to result in a preblend;
- (b) forming an aesthetic premix, comprising about 0.1% to 25% of an aesthetic agent selected from the group consisting of colorants, frangrances and mixtures thereof and carriers therefore;
- and
- (c) mixing the preblend and premix, to result in a substantially uniform mixture.
A composite cleaning block, providing substantially complete and uniform dissolution of all components, made by the process of:
- (a) forming a preblend by dry blending an alkyl sulfate surfactant present in an amount of about 3% to 15%, a dissolution control agent present in an amount of about 2% to 15%, a binder present in an amount of about 5% to 25%, a linear alkyl sulfonate surfactant present in an amount of about 3% to 30%, a bleaching agent selected from the group consisting of sodium monopersulfates, potassium monopersulfonate, diosodium monopersulfonate, dipotassium monoperphosphate, and mixtures thereof, and any adjuncts;
- (b) forming an aesthetic agent premix, comprising an aesthetic agent selected from the group consisting of colorants, fragrances and mixtures thereof;
- (c) mixing the preblend and premix, to result in a substantially uniform mixture;
- and
- (d) extruding the resultant composition into block form.
Dependencies are inferred from the claim text.