Antiperspirant gel-solid stick compositions containing select nucleating agents
AssigneeThe Procter & Gamble Company
InventorsGerald John Guskey, Curtis Bobby Motley, Ghebre Egziabher Tzeghai
Life of this patent
Estimating the term…
Abstract
Disclosed are anhydrous antiperspirant compositions comprising from about 0.5% to about 60% by weight of particulate antiperspirant active; from about 1% to about 15% by weight of a solid non-polymeric gellant; from about 10% to about 80% by weight of an anhydrous liquid carrier having an average solubility parameter of from about 3 to about 13 (cal/cm.sup.3).sup.0.5 ; and from about 0.0001% to about 5.0% by weight of a solid nucleating agent wherein the molar ratio of the solid non-polymeric gellant to the nucleating agent is from about 10:1 to about 1000:1. These antiperspirant compositions provide improved low residue performance and improved antiperspirant efficacy.
Claims22
An anhydrous antiperspirant gel-solid stick composition comprising:
- (a) from about 0.5% to about 60% by weight of particulate antiperspirant active;
- (b) from about 1% to about 15% by weight of a solid non-polymeric gellant;
- (c) from about 10% to about 80% by weight of an anhydrous liquid carrier having an average solubility parameter of from about 3 to about 13 (cal/cm.sup.3).sup.0.5 ;
- and
- (d) from about 0.0001% to about 5% by weight of a solid polyol carboxylic acid polyester nucleating agent.
The composition of 6 wherein the polyol moiety of the solid polyol carboxylic acid polyester has from about 4 to about 8 hydroxyl groups, and the unsaturated carboxylic acid moieties of the solid polyol carboxylic acid polyester have from about 12 to about 26 carbon atoms, and the saturated carboxylic acid moiety of the solid polyol carboxylic acid polyester has from about 20 to about 26 carbon atoms.
A method for making an anhydrous antiperspirant gel-solid stick composition, which method comprises the steps of
- (a) combining the following components:
- (i) from about 0.5% to about 60% by weight of particulate antiperspirant active;
- (ii) from about 1% to about 15% by weight of a solid non-polymeric gellant;
- (iii) from about 10% to about 80% by weight of an anhydrous liquid carrier having an average solubility parameter of from about 3 to about 13 (cal/cm.sup.3).sup.0.5 ;
- and
- (iv)from about 0.0001% to about 5.0% by weight of a solid polyol carboxylic acid polyester nucleating agent;
- (b) liquefying the solid non-polymeric gellant and the solid nucleating agent;
- and
- (c) solidifying the liquefied gellant in the presence of the nucleating agent to form the anhydrous antiperspirant gel-solid stick composition.
An anhydrous antiperspirant composition comprising:
- (a) from about 0.5% to about 60% by weight of particulate antiperspirant active;
- (b) from about 1% to about 15% by weight of a solid non-polymeric gellant;
- (c) from about 10% to about 80% by weight of an anhydrous liquid carrier having an average solubility parameter of from about 3 to about 13 (cal/cm.sup.3).sup.0.5 ;
- and
- (d) from about 0.0001% to about 5% by weight of a solid polyol carboxylic acid polyester nucleating agent and
- wherein the composition has a hardness of from about 20 gram.multidot.force to about 500 gram.multidot.force.
A method for treating or reducing perspiration wetness and malodor, comprising applying from about 0.1 gram to about 20 grams of the composition of claim 23 to the desired area of the skin.
Dependencies are inferred from the claim text.