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US 7,732,392 B2Granted
Massaging bar soap
AssigneeColgate-Palmolive Company
InventorsElizabeth Volz, Melissa Kuzmich
Life of this patent
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Abstract
A soap bar comprising at least two different portions wherein the portions have a difference in solubility of at least 1.0%.
Claims5
A soap bar comprising at least two different portions A and B, wherein the portions have a difference in solubility of at least about 1.0%, and wherein the differences in solubilities between the at least two different portions causes a ridged structure to be formed upon use of the bar, wherein
- I) Portion A is the lesser soluble portion and comprises:
- (a) about 75-90 weight % of a soap;
- (b) about 1-5 weight % of one or more of a C 12-C20 straight or branched chain fatty acids;
- (c) about 0.5-1.2 weight % of at least one hardening agent chosen from inorganic electrolytes, propylene glycol, mixtures of sodium chloride with polyethylene glycol, and mixtures of sodium chloride with at least one wax with a melting point of 40-60° C., wherein a total amount of all of these materials in Portion A are within the about 0.5-1.2 weight % range;
- (d) water;
- and
- II) Portion B is more soluble than Portion A in water and comprises:
- (a) 60-75 weight % of a soap;
- (b) a solubility enhancing component selected from the group consisting of
- (i) 6-10 weight % of a humectant;
- (ii) 3-10 weight % of an alcohol;
- (iii) 0.5-10% of a saccharide humectant;
- (iv) 0.5-25 weight % of a non-soap synthetic surfactant;
- and
- (v) mixtures thereof;
- provided that the solubility enhancing components must be present in a minimum amount of at least about 5 weight %;
- (c) about 0.5-1.7 weight % of at least one hardening agent chosen from inorganic electrolytes, propylene glycol, a mixture of sodium chloride with polyethylene glycol, a mixture of sodium chloride and a wax with a melting point of 40-60° C., wherein a total amount of all of these materials in Portion B are within the about 0.5-1.7 weight % range;
- (d) about 0.1-5 weight % of one or more of a C12-C20 straight or branched chain fatty acid;
- (e) water, and wherein the portions have a difference in solubility of between 3-7% and height difference between the ridges of at least two portions is about 0.1 to about 0.6 mm.
16 more elements
Dependencies are inferred from the claim text.