Antiperspirant Spray Devices and Compositions

Abstract

A hand held spray device is disclosed. The spray device has a body with a reservoir, an actuator having an actuator exit orifice, a valve in fluid communication with the actuator exit orifice and the reservoir, and a propellant and antiperspirant composition stored in the reservoir. The propellant has a concentration from 30% to 70% by weight of the total fill of materials stored within the reservoir. The antiperspirant composition includes a non-volatile silicone fluid having a concentration from about 30% to about 70% by weight of the antiperspirant composition, an antiperspirant active, an organoclay material and at least one liquid activation enhancer.

What is claimed is: 
     
         1 . A hand held spray device, comprising:
 a body comprising a reservoir to house a total fill of materials;   an actuator comprising an actuator exit orifice;   a valve in fluid communication with the actuator exit orifice and the reservoir;   a propellant stored in the reservoir, the propellant having a concentration from 30% to 70% by weight of the total fill of materials stored within the reservoir; and   an antiperspirant composition stored in the reservoir, the antiperspirant composition comprising a non-volatile silicone fluid having a concentration from about 30% to 70% by weight of the antiperspirant composition, an antiperspirant active, an organoclay material and at least one liquid activation enhancer having the following formula (I):
   R 1 —X—R 2  
 
   wherein R 1  contains from about 8 to about 20 carbon atoms, X is selected from the group consisting of an alcohol, ester, amide and aryl group, and R 2  is selected from the group consisting of null, H, 1 to 4 carbon atoms, and C 6 H 6 .   
     
     
         2 . The hand held spray device according to  claim 1 , wherein the liquid activation enhancer is selected from the group consisting of isopropyl myristate, isopropyl palmitate, ethyl stearate, methyl stearate, propyl stearate, butyl stearate, ethyl myristate, ethyl palmitate, butyl palmitate, propyl stearate, propyl palmitate, methyl stearamide, ethyl stearamide, isopropyl stearamide, ethyl palmitamide propyl palmitamide, stearyl benzoate, benzyl palmitate, benzyl stearate, palmityl benzoate, C12-15 alkyl benzoate, palmityl acetate and combinations thereof. 
     
     
         3 . The hand held spray device according to  claim 2 , wherein the liquid activation enhancer is selected from the group consisting of isopropyl myristate, isopropyl palmitate, butyl stearate, C12-15 alkyl benzoate and combinations thereof. 
     
     
         4 . The hand held spray device according to  claim 1 , wherein the organoclay material is selected from the group consisting of modified bentonite, modified hectorite, modified montorlinite and combinations thereof. 
     
     
         5 . The hand held spray device according to  claim 1 , wherein the antiperspirant composition further comprises a clay activator. 
     
     
         6 . The hand held spray device according to  claim 5 , wherein the clay activator is selected from the group consisting of propylene carbonate, triethyl citrate, methanol, ethanol, acetone, water and combinations thereof. 
     
     
         7 . The hand held spray device according to  claim 1 , wherein the organoclay material has a concentration from about 1% to about 8% by weight of the antiperspirant composition. 
     
     
         8 . The hand held spray device according to  claim 1 , wherein the antiperspirant composition further comprising a liquid fragrance material having a concentration from about 2% to about 8% by weight of the antiperspirant composition. 
     
     
         9 . The hand held spray device according to  claim 1 , wherein the non-volatile silicone fluid has a concentration from about 30% to about 50% by weight of the antiperspirant composition and has a viscosity at the time of making from about 5×10 −6  m 2 /s to about 350×10 −6  m 2 /s. 
     
     
         10 . The hand held spray device according to  claim 9 , wherein the non-volatile silicone fluid has a viscosity at the time of making from about 5×10 −6  m 2 /s to about 100×10 −6  m 2 /s. 
     
     
         11 . The hand held spray device according to  claim 10 , wherein the non-volatile silicone fluid comprises a polydimethylsiloxane fluid having has an average molecular weight from about 500 to about 13,700 at the time of making. 
     
     
         12 . The hand held spay device according to  claim 11 , wherein the polymethylsiloxane fluid has the following formula (II):
   M-D x -M   wherein M is (CH 3 ) 3 SiO, D is ((CH 3 ) 2 SiO) and X is from about 4 to about 183.   
     
     
         13 . The hand held spray device according to  claim 1 , wherein the antiperspirant composition is substantially free of a volatile silicone fluid. 
     
     
         14 . The hand held spray device according to  claim 3 , wherein the liquid activation enhancer is C12-15 alkyl benzoate and the non-volatile silicone fluid comprises a polymethylsiloxane fluid having a viscosity less than about 20×10 −6  m 2 /s at the time of making. 
     
     
         15 . The hand held spray device according to  claim 1 , wherein the antiperspirant composition is substantially free of mineral oil, isohexadecane, PPG-14 butyl ether and octyldodecanol. 
     
     
         16 . The hand held spray device according to  claim 1 , wherein the at least one liquid activation enhancer has a concentration from about 2% to about 30% by weight of the antiperspirant composition. 
     
     
         17 . The hand held spray device according to  claim 16 , wherein the liquid activation enhancer has a concentration from about 2% to about 8% by weight of the antiperspirant composition. 
     
     
         18 . The hand held spray device according to  claim 1 , wherein the non-volatile silicone fluid comprises a polymethylsiloxane fluid with a concentration from about 30% to about 50% by weight of the antiperspirant composition and wherein the at least one liquid activation enhancer is isopropyl myristate having a concentration from about 2% to about 10% by weight of the antiperspirant composition and wherein the antiperspirant composition further comprises a liquid fragrance material having a concentration from about 4% to about 6% by weight of the antiperspirant composition. 
     
     
         19 . The hand held spray device according to  claim 1 , further comprising a liquid fragrance material and wherein the concentration of the liquid fragrance material by weight of the antiperspirant composition is greater than the concentration of the organoclay material. 
     
     
         20 . The hand held spray device according to  claim 5 , further comprising a liquid fragrance material and wherein the liquid fragrance material has a concentration by weight of the antiperspirant composition that is greater than the concentration of the clay activator. 
     
     
         21 . The hand held spray device according to  claim 1 , wherein the antiperspirant composition has a viscosity from 1 Pa·s to about 50 Pa·s.