Extended Release Fragrance Compositions

Abstract

Compositions are provided that provide release of fragrance over an extended period of time. The compositions comprise a hydrophilically-modified cross-linked silicone elastomer and an acrylic rheology modifier.

What is claimed: 
     
         1 . A composition for providing extended release of fragrance comprising:
 (a) a hydrophilically-modified cross-linked silicone elastomer;   (b) an acrylic rheology modifier;   (c) a polyol;   (d) an alcohol; and   (e) a fragrance oil,   
       wherein the composition is capable of releasing said fragrance oil over a longer period of time as compared to an otherwise identical composition lacking either said hydrophilically-modified cross-linked silicone elastomer or said acrylic rheology modifier. 
     
     
         2 . The composition according to  claim 1 , wherein said hydrophilically-modified cross-linked silicone elastomer comprises poly(alkylene oxide) chains grafted to a silicone backbone. 
     
     
         3 . The composition according to  claim 1 , wherein said hydrophilically-modified cross-linked silicone elastomer comprises PEG-12 dimethicone/PPG-20 crosspolymer. 
     
     
         4 . The composition according to  claim 1 , wherein said acrylic rheology modifier comprises a copolymer of an acrylate monomer and an acrylamide monomer. 
     
     
         5 . The composition according to  claim 1 , wherein said acrylic rheology modifier comprises hydroxylethyl acrylate/sodium acryloyldimethyltaurate copolymer. 
     
     
         6 . The composition according to  claim 1 , wherein said polyol comprises glycerin and said alcohol comprises ethanol. 
     
     
         7 . The composition according to  claim 1 , wherein said fragrance oil comprises a blend of one or more fragrance oils. 
     
     
         8 . The composition according to  claim 1 , wherein said hydrophilically-modified cross-linked silicone elastomer is present in an amount from about 0.5% to about 5% by weight of the total composition. 
     
     
         9 . The composition according to  claim 1 , wherein said acrylic rheology modifier is present in an amount from about 0.5% to about 5% by weight of the total composition. 
     
     
         10 . The composition according to  claim 1 , wherein the weight ratio of said hydrophilically-modified cross-linked silicone elastomer and said acrylic rheology modifier is from about 2:1 to about 1:2. 
     
     
         11 . The composition according to  claim 1 , wherein said composition is in the form of a clear or translucent gel. 
     
     
         12 . The composition according to  claim 1 , further comprising one or more actives selected from the group consisting of: retinoids, hydroxyl acids, depigmenting agents, botanicals, collagenase inhibitors, elastase inhibitors, sunscreens, anti-perspirants, deodorants, anti-bacterias, and anti-fungals. 
     
     
         13 . The composition according to  claim 1 , further comprising one or more colorants. 
     
     
         14 . A long-wearing composition for providing extended release of fragrance, said composition comprising:
 (a) from about 0.5% to about 5% by weight of a hydrophilically-modified cross-linked silicone elastomer;   (b) from about 0.5% to about 5% by weight of an acrylic rheology modifier;   (c) from about 35% to about 50% by weight of a polyol;   (d) from about 35% to about 50% by weight of an alcohol; and   (e) from about 2% to about 10% by weight of a fragrance oil,   
       wherein the composition is capable of releasing said fragrance oil over a longer period of time as compared to an otherwise identical composition lacking either said hydrophilically-modified cross-linked silicone elastomer or said acrylic rheology modifier. 
     
     
         15 . A method for providing prolonged delivery of a fragrance oil comprising applying to a surface a composition according to  claim 1 . 
     
     
         16 . The method according to  claim 15 , wherein said surface is a human integument. 
     
     
         17 . An insect repellant composition that provides extended release of an insect repellant oil, comprising:
 (a) a hydrophilically-modified cross-linked silicone elastomer;   (b) an acrylic rheology modifier;   (c) a polyol;   (d) an alcohol; and   (e) an insect repellant oil,   
       wherein the composition is capable of releasing said insect repellant oil over a longer period of time as compared to an otherwise identical composition lacking either said hydrophilically-modified cross-linked silicone elastomer or said acrylic rheology modifier.