Cosmetic Composition Comprising Hydrophilic Organosilanes

Abstract

The present disclosure relates to cosmetic compositions comprising an organosilane (A) having the formula: (R 1 ) n (R 2 O) (3−n) SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4 where n is 1, 2, or 3, a≧1, b may vary from 0 to 30, with the proviso a≧b, R 1 is a hydrocarbon group containing 1 to 12 carbon atoms, R 2 is hydrogen or an alkyl group containing 1 to 6 carbon atoms, R 3 is a divalent hydrocarbon group containing 2 to 12 carbon atoms, R 4 is hydrogen, R 1 , or an acetyl group; and a cosmetic ingredient (B), and optionally in a cosmetically acceptable medium.

1 . A cosmetic composition comprising
 i. an organosilane (A) having the formula;
 (R 1 ) (3−n) (R 2 O) n SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4  where
 n is 1, 2, or 3, 
 a≧1, b may vary from 0 to 30, with the proviso a≧b, 
 R 1  is a hydrocarbon group containing 1 to 12 carbon atoms, 
 R 2  is hydrogen or an alkyl group containing 1 to 6 carbon atoms, 
 R 3  is a divalent hydrocarbon group containing 2 to 12 carbon atoms, 
 R 4  is hydrogen, R 1 , or an acetyl group 
 
   ii. at least one cosmetic ingredient (B).   
     
     
         2 . The cosmetic composition of  claim 1  where n is 2. 
     
     
         3 . The cosmetic composition of  claim 1  where a ranges from 4 to 30. 
     
     
         4 . The cosmetic composition of  claim 1  where R 1  is methyl and R 2  is methyl or ethyl. 
     
     
         5 . The cosmetic composition of  claim 1  where R 3  is propylene or  13  CH 2 CH 2 C(CH 3 ) 2 —. 
     
     
         6 . The cosmetic composition of  claim 1  where organosilane (A) has the following average formula:
   (CH 3 )(CH 3 CH 2 O) 2 Si CH 2 CH 2 CH 2  O(CH 2 CH 2 O) 7 CH 3 . 
 
     
     
         7 . The cosmetic composition of  claim 1  where organosilane (A) has the following average formula:
 (CH 3 )(CH 3 O) 2 Si CH 2 CH 2 C(CH 3 ) 2  O(CH 2 CH 2 O) 18 (C 3 H 6 O) 18 H. 
 
     
     
         8 . The cosmetic composition of  claim 1  comprising a cosmetically acceptable medium. 
     
     
         9 . The cosmetic composition of  claim 1  where the cosmetic ingredient (B) is selected from emollients, waxes, moisturizers, surface active materials, thickeners, water phase stabilizing agents, pH controlling agents, preservatives and cosmetic biocides, sebum absorbants, sebum control agents, vegetable extracts, botanical extracts, vitamins, proteins and their derivatives, amino-acids and their derivatives, pigments, colorants, fillers, silicone conditioning agents, cationic conditioning agents, UV absorbers, sunscreen agents, antidandruff agents, antiperspirant agents, deodorant agents, skin protectants, hair dyes, nail care ingredients, fragrances, perfume, antioxidants, oxidizing agents, reducing agents, propellant gases, fatty alcohols, color care additives, pearlising agents, chelating agents, film formers, styling agents, ceramides, suspending agents, and mixtures thereof. 
     
     
         10 . The cosmetic composition of  claim 9  where the cosmetic ingredient is selected from pigments, colorants, dyes. 
     
     
         11 . A process for preparing a cosmetic composition comprising the steps of mixing an organosilane (A) having the formula;
 (R 1 ) (3−n) (R 2 O) n SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4  where
 n is 1, 2, or 3, 
 a≧1, b may vary from 0 to 30, with the proviso a≧b, 
 R 1  is a hydrocarbon group containing 1 to 12 carbon atoms, 
 R 2  is hydrogen or an alkyl group containing 1 to 6 carbon atoms, 
 R 3  is a divalent hydrocarbon group containing 2 to 12 carbon atoms, 
 R 4  is hydrogen, R 1 , or an acetyl group 
   
       with at least one cosmetic ingredient (B). 
     
     
         12 . A process for hydrating skin comprising the steps of
 i. Mixing an organosilane (A) having the formula;
 (R 1 ) (3−n) (R 2 O) n SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4  where
 n is 1, 2, or 3, 
 a≧1, b may vary from 0 to 30, with the proviso a≧b, 
 R 1  is a hydrocarbon group containing 1 to 12 carbon atoms, 
 R 2  is hydrogen or an alkyl group containing 1 to 6 carbon atoms, 
 R 3  is a divalent hydrocarbon group containing 2 to 12 carbon atoms, 
 R 4  is hydrogen, R 1 , or an acetyl group 
 
   
       with at least one cosmetic ingredient (B),
 ii. and applying it to the skin 
 iii. and optionally rinsing the skin. 
 
     
     
         13 . A process to color keratinous fibers comprising the steps of
 i. Mixing an organosilane (A) having the formula;
 (R 1 ) (3−n) (R 2 O) n SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4  where
 n is 1, 2, or 3, 
 a≧1, b may vary from 0 to 30, with the proviso a≧b, 
 R 1  is a hydrocarbon group containing 1 to 12 carbon atoms, 
 R 2  is hydrogen or an alkyl group containing 1 to 6 carbon atoms, 
 R 3  is a divalent hydrocarbon group containing 2 to 12 carbon atoms, 
 R 4  is hydrogen, R 1 , or an acetyl group 
 with at least one cosmetic ingredient (B) selected from hair dyes, hair colorants; 
 
   ii. Applying the mixture to the keratinous fibers;   iii. Optionally let the mixture stand on the keratinous fibers   iv. Optionally rinsing the keratinous fibers.   
     
     
         14 . A process to maintain color to keratinous fibers comprising the steps of
 i. Mixing an organosilane (A) having the formula;
 (R 1 ) (3−n) (R 2 O) n SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4  where
 n is 1, 2, or 3, 
 a≧1, b may vary from 0 to 30, with the proviso a≧b, 
 R 1  is a hydrocarbon group containing 1 to 12 carbon atoms, 
 R 2  is hydrogen or an alkyl group containing 1 to 6 carbon atoms, 
 R 3  is a divalent hydrocarbon group containing 2 to 12 carbon atoms, 
 R 4  is hydrogen, R 1 , or an acetyl group 
 with at least one cosmetic ingredient (B) selected from surfactants, hair dyes, hair colorants; 
 
   ii. Applying the mixture to the keratinous fibers   iii. Optionally let the mixture stand on the keratinous fibers   iv. Optionally rinsing the keratinous fibers.   
     
     
         15 . A process to reduce frizzing of keratinous fibers comprising the steps of
 i. Mixing an organosilane (A) having the formula;
 (R 1 ) (3−n) (R 2 O) n SiR 3 O(CH 2 CH 2 O) a (C 3 H 6 O) b R 4  where
 n is 1, 2, or 3, 
 a24 1, b may vary from 0 to 30, with the proviso a≧b, 
 R 1  is a hydrocarbon group containing 1 to 12 carbon atoms, 
 R 2  is hydrogen or an alkyl group containing 1 to 6 carbon atoms, 
 R 3  is a divalent hydrocarbon group containing 2 to 12 carbon atoms, 
 R 4  is hydrogen, R 1 , or an acetyl group with water; 
 
   ii. applying the mixture to the keratinous fibers,   iii. optionally letting the mixture stand on the keratinous fibers,   iv. optionally rinsing the keratinous fibers.