US 6,485,715 B1Granted

Stable pressurized antiperspirant compositions containing dimethylether propellant and a low polarity solvent

AssigneeThe Proctor & Gamble Company

InventorsScott Edward Smith, David Frederick Swaile, Jennifer Elaine Hilvert

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Abstract

Disclosed are pressurized antiperspirant compositions comprising (a) a polyol solvent having at least 4 carbon atoms and a hydroxyl group on each of the α and β carbon atoms of the polyol solvent; (b) solubilized antiperspirant active; (c) dimethylether; (d) a low polarity liquid having a solubility parameter of less than about 8.0, wherein the weight ratio of the dimethylether to low polarity solvent is from about 0.1 to about 2.8. It has been found that these compositions are especially useful in formulating clear or single-phase pressurized antiperspirant compositions that remain stable over prolonged periods and that can be formulated without ethanol or aqueous solvents.

Claims22

Dependent claims

Liquid, single-phase, pressurized antiperspirant compositions comprising:

(a) a polyol solvent having at least 4 carbon atoms and a hydroxyl group on each of the α and β carbon atoms of the polyol solvent;
(b) solubilized antiperspirant active, wherein said active contains aluminum;
(c) dimethylether;
and
(d) a low polarity solvent having a solubility parameter of less than about 8.0,
wherein the weight ratio of the dimethylether to low polarity solvent is from about 0 1 to about 2.8,
wherein said low polarity solvent is selected from the group consisting of volatile silicones, non-volatile silicones, polyalkyl siloxanes, polyalkylarylsiloxanes, polyether siloxane copolymers, liquefied hydrocarbon propellants, volatile liquid hydrocarbons, non-volatile liquid hydrocarbons, and combinations thereof.

4 more elements

Dependencies are inferred from the claim text.