Shave gel compositions

Abstract

Heated, post-foaming shave gels are provided. Post-foaming shave gels that include a non-ionic emulsifier system are also provided. In some implementations, the non-ionic emulsifier system includes one or more fatty alcohol ethoxylates.

What is claimed is:  
     
         1 . A shaving composition in the form of a post-foaming gel comprising, water, a water-dispersible surface active agent capable of forming a lather, a volatile self-foaming agent, and heating reagents selected to provide an exothermic reaction during use of the shaving composition.  
     
     
         2 . The shaving composition of  claim 1  wherein the gel comprises an oil-in-water emulsion including a non-ionic emulsifier.  
     
     
         3 . The shaving composition of  claim 2  wherein the heating reagents include an oxidizing agent and a reducing agent, and the shaving composition is provided in the form of an oxidant component and a reductant component that are maintained separate until the shaving composition is dispensed by a user.  
     
     
         4 . The shaving composition of  claim 3  wherein the oxidizing agent comprises a peroxide.  
     
     
         5 . The shaving composition of  claim 4  wherein the reducing agent is selected from the group consisting of thiosulfate and sulfite compounds, compounds with a thiourea backbone, and mixtures thereof.  
     
     
         6 . The shaving composition of  claim 2  wherein the non-ionic emulsifier comprises a fatty alcohol ethoxylate with relatively long polyethylene oxide chain.  
     
     
         7 . The shaving composition of  claim 6  wherein the non-ionic emulsifier further comprises a fatty alcohol ethoxylate with relatively shorter polyethylene oxide chain.  
     
     
         8 . The shaving composition of  claim 7  wherein the fatty alcohol ethoxylates with relatively longer and relatively shorter polyethylene oxide chains are provided in a ratio in the range of from about 1:1 to 1:3.  
     
     
         9 . The shaving composition of  claim 2  wherein the non-ionic emulsifier comprises a blend of a relatively more hydrophobic surfactant and a relatively more hydrophilic surfactant.  
     
     
         10 . The shaving composition of  claim 1  wherein the shaving composition is substantially free of soaps and ionic surfactants.  
     
     
         11 . The shaving composition of  claim 1  further comprising an emollient.  
     
     
         12 . A post-foaming shave gel product comprising, 
 a two-component container having two separate chambers;    disposed in one chamber, an oxidant component comprising a first post-foaming shave gel base including an oxidizing agent, and    disposed in the other chamber, a reductant component comprising a second post-foaming shave gel base including a reducing agent;    at least one of the post-foaming shave gel bases including water, a water-dispersible surface active agent capable of forming a lather, and a volatile self-foaming agent.    
     
     
         13 . The post-foaming shave gel product of  claim 12  wherein the first and second post-foaming shave gel bases are provided in the form of oil-in-water emulsions.  
     
     
         14 . The post-foaming shave gel product of  claim 12  wherein the first and second post-foaming shave gel bases include a non-ionic emulsifier.  
     
     
         15 . The post-foaming shave gel product of  claim 14  wherein the non-ionic emulsifier comprises a fatty alcohol ethoxylate with long polyethylene oxide chain.  
     
     
         16 . The post-foaming shaving gel product of  claim 15  wherein the non-ionic emulsifier further comprises a fatty alcohol ethoxylate with relatively shorter polyethylene oxide chain.  
     
     
         17 . The post-foaming shaving gel product of  claim 16  wherein the fatty alcohol ethoxylates with relatively long and relatively shorter polyethylene oxide chains are provided in a ratio in the range of from about 1:1 to 1:3.  
     
     
         18 . The post-foaming shaving gel product of  claim 14  wherein the non-ionic emulsifier comprises a blend of a relatively more hydrophobic surfactant and a relatively more hydrophilic surfactant.  
     
     
         19 . The post-foaming shaving gel product of  claim 12  wherein the first and second post-foaming shave gel bases are substantially free of soaps and ionic surfactants.