Secondary alkyl sulfate-containing light duty liquid detergent compositions

Abstract

The present invention relates to light duty liquid detergent compositions containing one or more secondary alkyl sulfate surfactant components.

What is claimed is: 
     
       1. A liquid detergent composition comprising from about 1 percent by weight to about 35 percent by weight, basis the total weight of the composition, of one or more secondary alkyl sulfate compounds, from about 0.1 percent by weight to about 20 percent by weight, basis the total weight of the composition, of one or more suds stabilizers and from about 50 percent by weight to about 97 percent by weight, basis the total weight of the composition, of water. 
     
     
       2. The composition of claim 1 wherein the secondary alkyl sulfate compound has a formula ##STR6## wherein R 2  represents an alkyl group having from about 3 to about 18 carbon atoms, and R 3  represents an alkyl group having from about 1 to about 6 carbon atoms. 
     
     
       3. The composition of claim 1 wherein the secondary alkyl sulfate compound is added to the composition in the form of a free flowing powder composition comprising from about 80 percent by weight to about 99 percent by weight, basis the total weight of the composition, of secondary alkyl sulfate. 
     
     
       4. The composition of claim 1 wherein the suds stabilizer is a nonionic surfactant selected from the group consisting of a C 10  -C 14  alkyl amine oxides, C 8  -C 18  amides, ethylene oxide condensates of C 10  -C 14  alcohols or C 6  -C 10  mono alkyl phenols having from about 5 to about 15 moles of ethylene oxide per mole of alcohol or alkyl phenol, C 6  -C 18  alkylpolyglycosides, and mixtures thereof. 
     
     
       5. The composition of claim 4 wherein said suds stabilizer is an ethoxylated C 12  -C 15  alcohol having an average of about 3 moles of ethylene oxide per mole of alcohol. 
     
     
       6. The composition of claim 4 wherein said suds stabilizer is an amine oxide nonionic surface active agent having the formula: ##STR7## wherein R 9  is an alkyl, 2-hydroxyalkyl, 3-hydroxyalkyl, or 3-alkoxy-2-hydroxypropyl radical in which the alkyl and alkoxy, respectively, contain from about 8 to about 18 carbon atoms, R 10  and R 11  are each methyl, ethyl propyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, or 3-hydroxypropyl and n is 0 to about 10. 
     
     
       7. The composition of claim 1 wherein said composition comprises an additional anionic surfactant component. 
     
     
       8. The composition of claim 7 wherein said additional anionic component is selected from the group consisting of alkenyl carboxysulfonates, methylester sulfonates, alcohol ethoxysulfates, linear alkylbenzene sulfonates, alpha olefin sulfonates and mixtures thereof. 
     
     
       9. The composition of claim 7 wherein said additional anionic component is alcohol ethoxysulfate. 
     
     
       10. The composition of claim 9 wherein said alcohol ethoxysulfate is present in the liquid detergent composition in an amount in the range of from about 1 percent by weight to about percent by weight, basis the total weight of the composition. 
     
     
       11. The composition of claim 9 wherein said alcohol ethoxysulfate has a chemical formula:   R'--O--(CH.sub.2 CH.sub.2 O).sub.x --SO.sub.3 M     wherein R' is a straight chain or branched alkyl group having in the range of from about 8 to about 18 carbon atoms, or an alkylaryl group having an alkyl moiety having from about 8 to about 12 carbon atoms, x represents the average number of oxyethylene groups per molecule and is in the range of from about 1 to about 12, and M is a cation selected from an alkali metal, an ammonium ion, and mixtures thereof.   
     
     
       12. The composition of claim 1 wherein the composition additionally contains from about 2 percent by weight to about 5 percent by weight of a solubilizer selected from the group consisting of C 2  -C 3  monohydric alcohols, C 2  -C 3  polyhydric alcohols, water-soluble C 1  -C 3  alkyl substituted benzene sulfonates, urea and mixtures thereof. 
     
     
       13. The composition of claim 1 wherein the composition additionally contains from about 0.1 percent by weight to about 8 percent by weight of a water-soluble zwitterionic surfactant. 
     
     
       14. The composition of claim 13 wherein the water-soluble zwitterionic surfactant is selected from the group consisting of decyl dimethyl betaine or 2-(N-decyl-N, N-dimethylammonio) acetate, coco dimethyl betaine or 2-(N-coco-N, N-dimethylammonio) acetate, myristyl dimethyl betaine, palmityl dimethyl betaine, lauryl dimethyl betaine, cetyl dimethyl betaine, stearyl dimethyl betaine, and mixtures thereof. 
     
     
       15. A liquid detergent composition comprising from about 1 percent by weight to about 35 percent by weight, basis the total weight of the composition, of one or more secondary alkyl sulfate compounds, from about 1 percent by weight to about 30 percent by weight, basis the total weight of the composition, of one or more alcohol ethoxysulfate compounds, from about 0.1 percent by weight to about 20 percent by weight, basis the total weight of the composition, of one or more suds stabilizers, from about 0.1 percent by weight to about 8 percent by weight, basis the total weight of the composition, of a water-soluble zwitterionic surfactant, from about 2 percent by weight, basis the total weight of the composition, to about 5 percent by weight of a solubilizer and from about 50 percent by weight to about 97 percent by weight, basis the total weight of the composition, of water.