Antiperspirant aerosol composition

Abstract

According to a first aspect, antiperspirant aerosol compositions are disclosed comprising antiperspirant active particulates, a propellant and at least 5% by weight of the entire antiperspirant aerosol composition of a silicone component, wherein (a) the antiperspirant active particulates are the only particulates in the antiperspirant aerosol composition; (b) the silicone component comprises one or more silicones and the or each silicone is a non-volatile silicone. According to a second aspect, packaged antiperspirant aerosol compositions according to the first aspect are disclosed.

What is claimed is: 
     
         1 . An antiperspirant aerosol composition comprising:
 (a) antiperspirant active particulates;   (b) a propellant;   (c) at least about 5% by weight of the antiperspirant aerosol composition of a silicone component, wherein said silicone component comprises one or more non-volatile silicones;   (d) an active release agent, the active release agent comprising an aliphatic polyhydric alcohol having from about 2 to about 12 carbon atoms;   wherein the antiperspirant active particulates are the only solid particulates in the antiperspirant aerosol composition.   
     
     
         2 . The antiperspirant aerosol composition of  claim 1  wherein said active release agent is selected from the group consisting of propylene glycol, ethylene glycol, diethylene glycol, butylene glycol, 1,2-proplyene glycol, 1,3-propylene glycol, 1,3-butylene glycol, glycerine, 2-methyl-2,4-pentane-diol, 2-ethyl-1,3-hexane-diol, 1,2,6-hexanetriol and mixtures thereof. 
     
     
         3 . The antiperspirant aerosol compositions of  claim 1  comprising from about 0.01 to about 10% by weight of the antiperspirant aerosol composition of active release agent. 
     
     
         4 . The antiperspirant aerosol composition of  claim 1  comprising from about 5% to about 40% silicone component by weight of the antiperspirant aerosol composition. 
     
     
         5 . The antiperspirant aerosol composition of  claim 1  comprising from about 5% to about 10% silicone component by weight of the antiperspirant aerosol composition. 
     
     
         6 . The antiperspirant aerosol composition of  claim 1  comprising from about 15% to about 40% silicone component by weight of the antiperspirant aerosol composition. 
     
     
         7 . The antiperspirant aerosol composition of  claim 1  comprising from about 25% to about 35% silicone component by weight of the antiperspirant aerosol composition. 
     
     
         8 . The antiperspirant aerosol composition of  claim 1  wherein said nonvolatile silicone in the silicone component is selected from the group consisting of silicone gums, silicone waxes, silicone oils and mixtures thereof. 
     
     
         9 . The antiperspirant aerosol composition of  claim 8  wherein said silicone oils are selected from those having a viscosity from about 0.005 Nsm −2  to about 1000 Nsm −2  measured at about 25° C. 
     
     
         10 . The antiperspirant aerosol composition of  claim 8  wherein said silicone gums are selected from the group consisting of linear silicone gums having a molecular weight from about 140,000 to about 350,000; branched chain silicone gums having a molecular weight from about 140,000 to about 2,000,000 and mixtures thereof. 
     
     
         11 . The antiperspirant aerosol composition according to  claim 1  wherein the antiperspirant active has the following general formula:
   Al 2 (OH) a Cl b   .x H 2 O 
 wherein a is from about 2 to about 5; a+b=6; x is from about 1 to about 6; and wherein a, b, and x may have non-integer values. 
 
     
     
         12 . The antiperspirant aerosol composition of  claim 11 , wherein a is 4 or 5. 
     
     
         13 . The antiperspirant aerosol composition of  claim 1 , comprising from about 1% to about 25% particulate by weight of the antiperspirant aerosol composition. 
     
     
         14 . The antiperspirant aerosol composition of  claim 1 , comprising from about 5% to about 15% particulate by weight of the antiperspirant aerosol composition. 
     
     
         15 . The antiperspirant aerosol composition of  claim 1  comprising from about 0.1% to about 10% by weight of the antiperspirant aerosol composition of emollient. 
     
     
         16 . The antiperspirant aerosol composition of  claim 15  wherein the emollient is petrolatum. 
     
     
         17 . The antiperspirant aerosol composition of  claim 1  wherein the silicone component further comprises a quaternary ammonium functional silicone that is soluble in the propellant. 
     
     
         18 . The antiperspirant aerosol composition of  claim 17  comprising from about 0.01% to about 25% by weight of the antiperspirant aerosol composition of quaternary ammonium functional silicone. 
     
     
         19 . The antiperspirant aerosol composition of  claim 18  wherein the propellant is selected from the group consisting of propane, n-butane, isobutane, cyclopropane, halogenated hydrocarbons and mixtures thereof. 
     
     
         20 . An antiperspirant aerosol composition comprising:
 (a) from about 1% to about 25% antiperspirant active particulates, by weight of the antiperspirant aerosol composition;   (b) a propellant;   (c) from about 15% to about 40% silicone component, by weight of the antiperspirant aerosol composition, wherein the silicone component comprises one or more non-volatile silicones; and   (d) an active release agent, the active release agent comprising an aliphatic polyhydric alcohol having from about 2 to about 12 carbon atoms;   wherein the antiperspirant active particulates are the only solid particulates in the antiperspirant aerosol composition.