Shaving Preparation and Method for Shaving

Abstract

Disclosed is a shaving preparation imparting durable lubricity. The shaving preparation has one or more silicone polyethers and one or more water-soluble polymers that associate with the one or more silicone polyethers in aqueous solution. The lubricity of the shaving preparation can be reactivated by wetting the skin after shaving without applying an additional amount of the shaving preparation. Also disclosed is a method for using the shaving preparation.

1 . A shaving preparation having durable lubricity comprising:
 one or more silicone polyethers;   one or more water-soluble polymers that associate with one or more silicone polyethers; and   water.   
     
     
         2 . The shaving preparation according to  claim 1 , wherein:
 the one or more silicone polyethers are about 0.001 weight percent (wt %) to about 50.0 wt % of the shaving preparation;   the one or more water-soluble polymers that associate with the one or more silicone polyethers are about 0.001 wt % to about 10.0 wt % of the shaving preparation; and   the water is about 0.5 wt % to about 95.0 wt % of the shaving preparation.   
     
     
         3 . The shaving preparation according to  claim 2 , wherein the one or more silicone polyethers are selected from the group consisting of PEG-12 dimethicone and dimethicone copolyol. 
     
     
         4 . The shaving preparation according to  claim 2 , wherein the one or more water-soluble polymers that associate with the one or more silicone polyethers is a linear homopolymer derived from ethylene oxide. 
     
     
         5 . The shaving preparation according to  claim 2 , wherein the one or more silicone polyethers are from about 0.25 wt % to about 5.0 wt % of the shaving preparation. 
     
     
         6 . The shaving preparation according to  claim 2 , wherein the one or more water-soluble polymers that associate with the one or more silicone polyethers are from about 0.05 wt % to about 1.0 wt % of the shaving preparation. 
     
     
         7 . The shaving preparation according to  claim 2 , wherein the ratio of the one or more silicone polyethers to the one or more water-soluble polymers that associates with the silicone polyethers, as weight percents of the shaving preparation, is from about 5:1 to about 10:1. 
     
     
         8 . The shaving preparation according to  claim 7 , wherein the ratio of the one or more silicone polyethers to the amount of the one or more water-soluble polymers that associate with the silicone polyethers, as weight percents of the shaving preparation, is about 10:1. 
     
     
         9 . The shaving preparation according to  claim 1 , further comprising at least one of:
 sodium laureth sulfate;   cocamidopropyl betaine;   glycerin; and   one or more water-soluble polymers that do not associate with the one or more silicone polyethers.   
     
     
         10 . The shaving preparation according to  claim 9 , wherein:
 the sodium laureth sulfate is about 0.1 wt % to about 5.0 wt % of the shaving preparation;   the cocamidopropyl betaine is about 0.1 wt % to about 5.0 wt % of the shaving preparation;   the glycerin is about 0.1 wt % to about 5.0 wt % of the shaving preparation; and   the one or more water-soluble polymers that do not associate with the one or more silicone polyethers are about 0.1 wt % to about 3.0 wt % of the shaving preparation.   
     
     
         11 . The shaving preparation of  claim 9 , wherein one or more water-soluble polymers that do not associate with the silicone polyethers are selected from the group consisting of acrylates, C 10 -C 30  alkyl acrylate crosspolymers, xanthan gum, hydroxyethyl cellulose, and carboxymethyl cellulose. 
     
     
         12 . The shaving preparation according to  claim 1 , in a form selected from the group consisting of a gel, foam, liquid or cream. 
     
     
         13 . The shaving preparation according to  claim 12 , in the form of a gel. 
     
     
         14 . A method of shaving hair on a skin, comprising the steps of:
 applying to skin a shaving preparation according to  claim 1 ; and   moving a shaving implement on the surface of the skin to shave the hair.   
     
     
         15 . The method according to  claim 14 , further comprising the steps of:
 wetting an area of the skin; and   moving the shaving implement on the surface of the skin a second time to shave additional hair.   
     
     
         16 . The method according to  claim 14 , wherein:
 the one or more silicone polyethers are about 0.001 wt % to about 50.0 wt % of the shaving preparation;   the one or more water-soluble polymers that associate with the one or more silicone polyethers are about 0.001 wt % to about 10.0 wt % of the shaving preparation; and   the water is about 0.5 wt % to about 95.0 wt % of the shaving preparation.   
     
     
         17 . The method according to  claim 16 , wherein the one or more silicone polyethers are selected from the group consisting of PEG-12 dimethicone and dimethicone copolyol. 
     
     
         18 . The method according to  claim 16 , wherein the one or more water-soluble polymers that associate with the one or more silicone polyethers is a linear homopolymer derived from ethylene oxide. 
     
     
         19 . The method according to  claim 14 , wherein the shaving preparation further comprises at least one of:
 sodium laureth sulfate;   cocamidopropyl betaine;   glycerin; and   one or more water-soluble polymers that do not associate with the one or more silicone polyethers.   
     
     
         20 . The method according to  claim 19 , wherein:
 the sodium laureth sulfate is about 0.1 wt % to about 5.0 wt % of the shaving preparation;   the cocamidopropyl betaine is about 0.1 wt % to about 5.0 wt % of the shaving preparation;   the glycerin is about 0. 1 wt % to about 5.0 wt % of the shaving preparation; and   the one or more water-soluble polymers that do not associate with the one or more silicone polyethers are about 0.1 wt % to about 3.0 wt % of the shaving preparation.