Composition based on alkyl polyglycosides and fatty alcohols, and its uses

Abstract

The present invention relates to compositions based on alkyl polyglycosides and fatty alcohols, comprising: 5 to 60% by weight of a mixture of alkyl polyglycosides essentially consisting of: 0 to 20% by weight of at least one alkyl polyglycoside of formula (I): R 1 O(G 1 ) x 1   (I) in which R 1 is a linear or branched aliphatic radical having 16 or 18 carbon atoms, G 1 is a saccharide residue and x 1 is between 1 and 5; 0 to 100% by weight of an alkyl polyglycoside of formula (II): R 2 O(G 2 ) x 2   (II) in which R 2 is a linear or branched aliphatic radical having 14 carbon atoms, G 2 is a saccharide residue and x 2 is between 1 and 5; and 0 to 100% by weight of at least one alkyl polyglycoside of formula (III): R 3 O(G 3 ) x 3   (III) in which R 3 is a linear or branched aliphatic radical having 20 or 22 carbon atoms, G 3 is a saccharide residue and x 3 is between 1 and 5; and 95 to 40% by weight of one or more alcohols of the formula R′OH, in which R′ is a linear or branched aliphatic radical having from 14 to 22 carbon atoms, and preferably of a mixture consisting of alcohols whose alkyl moiety is identical to the alkyl moiety R 1 , R 2 and R 3 of the above-mentioned alkyl polyglycosides. The invention is applied especially to the preparation of emulsions possessing excellent textural properties.

What is claimed is:  
     
         1 . Compositions of alkyl polyglycosides and fatty alcohols, comprising: 
 5 to 60% by weight of a mixture of alkyl polyglycosides essentially consisting of:    0 to 20% by weight of at least one alkyl polyglycoside of formula (I):    R 1 O(G 1 ) x     1      (I)    in which R 1  is a linear or branched aliphatic radical having 16 or 18 carbon atoms, G 1  is a saccharide residue and x 1  is between 1 and 5;    0 to 100% by weight of an alkyl polyglycoside of formula (II):    R 2 O(G 2 ) x     2      (II)    in which R 2  is a linear or branched aliphatic radical having 14 carbon atoms, G 2  is a saccharide residue and x 2  is between 1 and 5; and    0 to 100% by weight of at least one alkyl polyglycoside of formula (III):    R 3 O(G 3 ) x     3      (III)    in which R 3  is a linear or branched aliphatic radical having 20 or 22 carbon atoms, G 3  is a saccharide residue and X 3  is between 1 and 5; and    95 to 40% by weight of one or more alcohols of the formula R′OH, in which R′ is a linear or branched aliphatic radical having from 14 to 22 carbon atoms.    
     
     
         2 . Compositions of alkyl polyglycosides and fatty alcohols, comprising: 
 5 to 60% by weight of a mixture of alkyl polyglycosides essentially consisting of:    0 to 20% by weight of at least one alkyl polyglycoside of formula (I):    R 1 O(G 1 ) x     1      (I)    in which R 1  is a linear or branched aliphatic radical having 16 or 18 carbon atoms, G 1  is a saccharide residue and x 1  is between 1 and 5;    0 to 100% by weight of an alkyl polyglycoside of formula (II):    R 2 O(G 2 ) x     2      (II)    in which R 2  is a linear or branched aliphatic radical having 14 carbon atoms, G 2  is a saccharide residue and x 2  is between 1 and 5; and    0 to 100% by weight of at least one alkyl polyglycoside of formula (III):    R 3 O(G 3 ) x     3      (III)    in which R 3  is a linear or branched aliphatic radical having 20 or 22 carbon atoms, G 3  is a saccharide residue and X 3  is between 1 and 5; and    95 to 40% by weight of a mixture consisting of alcohols whose alkyl moiety is identical to the alkyl moiety R 1 , R 2  and R 3  of the above-mentioned alkyl polyglycosides.    
     
     
         3 . Compositions according to  claim 2  wherein the above-mentioned mixture of alcohols essentially consists of: 
 0 to 20% by weight of at least one alcohol having 16 to 18 carbon atoms;  
 0 to 100% by weight of at least one alcohol having 14 carbon atoms; and  
 0 to 100% by weight of at least one alcohol having 20 to 22 carbon atoms.  
 
     
     
         4 . Compositions according to  claim 1  wherein the above-mentioned mixture of alkyl polyglycosides essentially consists of: 
 0 to 20% by weight of at least one alkyl polyglycoside of formula (I) as defined in  claim 1;   
 0 to 40% by weight of an alkyl polyglycoside of formula (II) as defined in  claim 1;  and  
 50 to 100% by weight of at least one alkyl polyglycoside of formula (III) as defined in  claim 1 .  
 
     
     
         5 . Compositions according to  claim 1  wherein the above-mentioned mixture of alkyl polyglycosides essentially consists of: 
 0 to 20% by weight of at least one alkyl polyglycoside of formula (I) as defined in  claim 1;   
 70 to 100% by weight of an alkyl polyglycoside of formula (II) as defined in  claim 1;  and  
 0 to 30% by weight of at least one alkyl polyglycoside of formula (III) as defined in  claim 1 .  
 
     
     
         6 . Compositions according to  claim 1  wherein the above-mentioned mixture of alkyl polyglycosides essentially consists of: 
 0 to 15% by weight of at least one alkyl polyglycoside of formula (I) as defined in  claim 1;   
 90 to 100% by weight of an alkyl polyglycoside of formula (II) as defined in  claim 1;  and  
 0 to 10% by weight of at least one alkyl polyglycoside of formula (III) as defined in  claim 1 .  
 
     
     
         7 . Compositions according to  claim 1  comprising: 
 8 to 40% by weight of the above-mentioned mixture of alkyl polyglycosides; and  
 92 to 60% by weight of one or more of the above-mentioned alcohols.  
 
     
     
         8 . Compositions according to  claim 1  comprising: 
 8 to 30% by weight of the above-mentioned mixture of alkyl polyglycosides; and  
 92 to 70% by weight of one or more of the above-mentioned alcohols.  
 
     
     
         9 . Compositions according to  claim 8  comprising: 
 10 to 30% by weight of an alkyl polyglycoside of formula (II); and  
 90 to 70% by weight of an alcohol having 14 carbon atoms.  
 
     
     
         10 . Compositions according to  claim 8  comprising: 
 25% by weight of an alkyl polyglycoside of formula (II); and  
 75% by weight of an alcohol having 14 carbon atoms.  
 
     
     
         11 . Compositions according to  claim 1  comprising: 
 8 to 25% by weight of a mixture of alkyl polyglycosides essentially consisting of:  
 0 to 15% by weight of at least one alkyl polyglycoside of formula (I) as defined in  claim 1;   
 0 to 25% by weight of an alkyl polyglycoside of formula (II) as defined in  claim 1;  and  
 75 to 100% by weight of at least one alkyl polyglycoside of formula (III) as defined in  claim 1;  and  
 92 to 75% by weight of a mixture consisting of alcohols whose alkyl moiety is identical to the alkyl moiety R 1 , R 2  and R 3  of the above-mentioned alkyl polyglycosides.  
 
     
     
         12 . Compositions according to  claim 1  comprising: 
 8 to 18% by weight of a mixture of alkyl polyglycosides essentially consisting of:  
 0 to 15% by weight of at least one alkyl polyglycoside of formula (I) as defined in  claim 1;   
 0 to 25% by weight of an alkyl polycoside of formula (II) as defined in  claim 1;  and  
 75 to 100% by weight of at least one alkyl polyglycoside of formula (III) as defined in  claim 1;  and  
 92 to 85% by weight of a mixture consisting of alcohols whose alkyl moiety is identical to the alkyl moiety R 1 , R 2  and R 3  of the above-mentioned alkyl polyglycosides.  
 
     
     
         13 . Compositions according to  claim 1  comprising: 
 10 to 20% by weight of a mixture of alkyl polyglycosides essentially consisting of:  
 20 to 40% by weight of an alkyl polyglycoside of formula (II) as defined in  claim 1;  and  
 60 to 80% by weight of at least one alkyl polyglycoside of formula (III) as defined in  claim 1;  and  
 80 to 90% by weight of a mixture consisting of alcohols whose alkyl moiety is identical to the alkyl moiety R 2  and R 3  of the above-mentioned alkyl polyglycosides.  
 
     
     
         14 . Compositions according to  claim 1  comprising: 
 10 to 20% by weight of a mixture of alkyl polyglycosides essentially consisting of:  
 about 30% by weight of an alkyl polyglycoside of formula (II) as defined in  claim 1;  and  
 about 70% by weight of an alkyl polyglycoside having 20 carbon atoms; and  
 80 to 90% by weight of a mixture consisting of alcohols whose alkyl moiety is identical to the alkyl moiety R 2  and R 3  of the above-mentioned alkyl polyglycosides.  
 
     
     
         15 . Emulsions comprising at least an aqueous phase and an oily phase and, as the main emulsifier, a composition of alkyl polyglycosides and fatty alcohols as defined according to  claim 1 .  
     
     
         16 . Emulsions according to  claim 15  comprising from 1 to 25% by weight of the above-mentioned emulsifying composition and up to 50% by weight of the above-mentioned oily phase.  
     
     
         17 . Emulsions according to  claim 15  comprising a complementary emulsifier in an amount such that the total amount of emulsifiers in the composition is less than or equal to 25% by weight.  
     
     
         18 . Emulsions according to  claim 17  wherein the complementary emulsifier is a non-ionic agent selected from the group consisting of an ethoxylated alcohol, an ethoxylated fatty acid, a glycerol ester, an ethoxylated glycerol ester, a sorbitan ester, a polysorbate, a polyglycerol ester, a sucrose ester, an alkyl glucose ester, an ethoxylated alkyl glucose ester and a dimethicone copolyol.  
     
     
         19 . Emulsions according to  claim 17 , wherein the complementary emulsifier is an anionic agent selected from the group consisting of an alkylsulfate, an alkylphosphate, a phosphated ethoxylated alcohol, a sulfated ethoxylated alcohol, a fatty acid soap, an acylate and a dimethicone copolyol phosphate.  
     
     
         20 . Emulsions according to  claim 15  comprising a co-emulsifier selected from the group consisting of ethoxylated vegetable oils and ethoxylated methyl esters of vegetable oils, in an amount such that the total amount of emulsifiers in the emulsion is less than or equal to 25% by weight, the weight ratio of the main emulsifier, consisting of the above-mentioned mixture of alkyl polyglycosides and fatty alcohols, to the co-emulsifier being between 98:2 and 20:80.  
     
     
         21 . Emulsions according to  claim 20  wherein the above-mentioned co-emulsifier is selected from the group consisting of an ethoxylated maize oil, an ethoxylated apricot kernel oil, an ethoxylated sunflower oil, an ethoxylated colza oil, an ethoxylated jojoba oil, an ethoxylated grapeseed oil or an ethoxylated linseed oil, or an ethoxylated methyl ester of maize oil, an ethoxylated methyl ester of colza oil and an ethoxylated methyl ester of linseed oil.  
     
     
         22 . Emulsions according to one of  claim 15  further comprising a co-surfactant selected from the group consisting of alkyl polyglycosides having from 8 to 12 carbon atoms, in an amount such that the total amount of emulsifier and co-surfactant is less than or equal to 25% by weight, the weight ratio of the emulsifier to the above-mentioned co-surfactant being between 99:1 and 60:40.  
     
     
         23 . Emulsions according to  claim 22  wherein the above-mentioned co-surfactant is an alkyl polyglycoside having 12 carbon atoms.  
     
     
         24 . Emulsions according to any one of  claim 15  further comprising a synthetic polymer or a natural hydrocolloid in an amount of about 0.1 to 5% by weight.  
     
     
         25 . Emulsions according to  claim 24  wherein the above-mentioned synthetic polymer or natural hydrocolloid is selected from the group consisting of: 
 crosslinked or non-crosslinked acrylic or methacrylic polymers and copolymers;  
 styrene or vinyl polymers and copolymers;  
 acrylamide polymers and copolymers;  
 gums of natural origin;  
 cellulosic polymers and derivatives thereof; and  
 mineral compounds.