Pearlizer concentrate and its use in personal care compositions

Abstract

An aqueous pearlescent concentrate, containing a pearlizing agent, an anionic surfactant, and a cationic component, having increased opacity and is useful in modifying the appearance of aqueous liquid compositions, particularly personal care compositions.

1 . An aqueous pearlizing concentrate, comprising: 
 a pearlizing agent,    an anionic surfactant, and    a cationic component.    
     
     
         2 . The concentrate of  claim 1 , wherein the concentrate comprises, based on 100 parts by weight of the concentrate, from about 10 to about 50 parts by weight of the pearlizing agent, from about 1 to about 35 parts by weight of the anionic surfactant, and from about 0.1 to about 20 parts by weight of the cationic component.  
     
     
         3 . The concentrate of  claim 1 , wherein the pearlizing agent comprises at least one compound selected from (C 12 -C 24 ) alkyl fatty acids, oxyalkylene esters of (C 12 -C 24 ) alkyl fatty acids, (C 12 -C 24 )alkanol amides, and, esters of (C 12 -C 24 )alkyl fatty acids with such alkanol amides.  
     
     
         4 . The concentrate of  claim 1 , wherein the pearlizing agent comprises at least one compound selected from ethylene glycol monostearate, and ethylene glycol distearate.  
     
     
         5 . The concentrate of  claim 1 , wherein the anionic surfactant comprises at least one compound selected from aryl sulfonates, alkaryl sulfonates, alpha olefin sulfonates, paraffin sulfonates, alkyl ester sulfonates, alkyl sulfates, alkyl alkoxy sulfates, alkyl alkoxy carboxylates, alkyl alkoxylated sulfates, acylsarcosinates, and amidosulfonates.  
     
     
         6 . The concentrate of  claim 1 , wherein the cationic component comprises at least one compound selected from cationic surfactants, and cationic polymers.  
     
     
         7 . The concentrate of  claim 6 , wherein the cationic component comprises at least one cationic surfactant compound selected from amine salts, monoalkyl amine derivatives, dialkyl amine derivatives, and imidazoline derivatives.  
     
     
         8 . The concentrate of  claim 7 , wherein the cationic component comprises at least one amine salt selected from polyethoxylated (2) oleyl/stearyl amines, ethoxylated tallow amines, cocoalkylamine, oleylamine, and tallow alkyl amine  
     
     
         9 . The concentrate of  claim 7 , where the cationic component comprises at least one monoalkyl amine derivative selected from cetrimonium bromide, cetrimonium chloride, myrtrimonium bromide, stearalkonium chloride, olealkonium chloride, cocotrimonium methosulfate, hydroxyethyl cetyldimonium phosphate, bassuamidopropylkonium chloride, cocotrimonium chloride, distearyidimonium chloride, wheat germ-amidopropalkonium chloride, stearyl octyldimonium methosulfate, isostearaminopropal-konium chloride, dihydroxypropyl PEG-5 linoleaminium chloride, PEG-2 stearmonium chloride, Quaternium 18, Quaternium 80, Quaternium 82, Quaternium 84, behentrimonium chloride, dicetyl dimonium chloride, behentrimonium methosulfate, tallow trimonium chloride, and behenamidopropyl ethyl dimonium ethosulfate.  
     
     
         10 . The concentrate of  claim 7 , wherein the cationic component comprises at least one dialkyl amine derivative selected from distearyldimonium chloride, dicetyl dimonium chloride, stearyl octyldimonium methosulfate, dihydrogenated palmoylethyl hydroxyethylmonium methosulfate, dipalmitoylethyl hydroxyethylmonium methosulfate, dioleoylethyl hydroxyethylmonium methosulfate, and hydroxypropyl bisstearyldimonium chloride.  
     
     
         11 . The concentrate of  claim 7 , wherein the cationic component comprises at least one imidazoline derivative selected from isostearyl benzylimidonium chloride, cocoyl benzyl hydroxyethyl imidazolinium chloride, cocoyl hydroxyethylimidazolinium PG-chloride phosphate, Quaternium 32, and stearyl hydroxyethylimidonium chloride.  
     
     
         12 . The concentrate of  claim 6 , wherein the cationic component comprises at least one cationic polymer selected from guar hydroxypropyltrimonium chloride, hydroxypropyl guar hydroxypropyltrimonium chloride, polymethacrylamidopropyltrimonium chloride, polyquaternium-2, polyquaternium-6, polyquaternium-7, polyquaternium-10, and polyquaternium-11.  
     
     
         13 . A method for making an aqueous pearlescent composition, comprising providing a heated aqueous mixture comprising a molten pearlizing agent, cooling the mixture to allow formation of crystals of the pearlizing agent, and adding an anionic surfactant and a cationic component to the mixture so that at least a portion of the anionic surfactant and at least a portion of the cationic component are each present during crystal formation.  
     
     
         14 . The method of  claim 13 , wherein the heated aqueous mixture is at a temperature of from about 65° C. to about 90° C.  
     
     
         15 . The method of  claim 13 , wherein the anionic surfactant is added to the aqueous mixture prior to the cooling step.  
     
     
         16 . The method of  claim 15 , wherein at least a portion of the cationic component is added to the aqueous mixture prior to the cooling step.  
     
     
         17 . The method of  claim 15 , wherein the at least a portion of the cationic component is added to the aqueous mixture during the cooling step.  
     
     
         18 . An aqueous pearlescent composition made according the method of  claim 13 .  
     
     
         19 . The composition of  claim 18 , wherein the composition is a pearlizing concentrate.  
     
     
         20 . The composition of  claim 18 , wherein the composition is a personal care composition.  
     
     
         21 . An aqueous liquid composition, comprising the concentrate of  claim 1 .  
     
     
         22 . The aqueous liquid composition of  claim 21 , wherein the composition is a personal care composition  
     
     
         23 . The composition of  claim 22 , wherein the composition is selected from shampoos, hand soaps, liquid soaps, body washes, facial cleansers, baby cleansers, children's cleansers, bubble baths, hair conditioning compositions, moisturizing lotions, and moisturizing creams.  
     
     
         24 . A method for modifying the appearance of an aqueous liquid composition, comprising adding a pearlizing concentrate according to  claim 1  to such composition.  
     
     
         25 . The method of  claim 24 , wherein the aqueous liquid composition is a personal care composition.  
     
     
         26 . An aqueous liquid composition made by the method of  claim 24.