Cleaning compositions employing extended chain anionic surfactants
The invention discloses synergistic combinations of surfactant blends and cleaning compositions employing the same. In certain embodiments a surfactant system is disclosed which includes an extended anionic surfactant with novel linker surfactants including one or more of an alkyl glycerol ether, an ethoxylated alkyl glycerol ether, an alcohol ethoxylate and/or a Gemini surfactant. This system forms emulsions with, and can remove greasy and oily stains, even those comprised of non-trans fats. The compositions may be used alone, as a pre-spotter or other pre-treatment or as a part of a soft surface or hard surface cleaning composition.
1. A cleaning composition comprising:
a surfactant system comprising an extended chain anionic surfactant and a linker surfactant of a branched alkyl glycerol ether, an ethoxylated alkyl glycerol ether, a C 2 to C 6 alcohol ethoxylate, and/or a Gemini surfactant having two or more head groups and two or more tails; and
an acid source.
2. The cleaning composition of claim 1 wherein said linker surfactant is ethyl hexyl glycerol ether.
3. The cleaning composition of claim 1 wherein said extended chain anionic surfactant and the linker surfactant are present in a ratio of greater than 1:1 percent by weight of extended chain anionic surfactant to linker surfactant.
4. The cleaning composition of claim 1 wherein said extended chain anionic surfactant and the linker surfactant are present in a ratio of 1:1.2 or greater percent by weight of extended chain anionic surfactant to linker surfactant.
5. The cleaning composition of claim 1 wherein said ethoxylated alkyl glycerol ether has from about 1 to about 3 moles of ethoxylation.
6. The cleaning composition of claim 1 wherein said extended chain anionic surfactant comprises a compound of formula:
R-[L] x -[O—CH 2 —CH 2 ] y -M
where R is a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from about 6 to 20 carbon atoms, L is a linking group, M is any ionic species, x is the chain length of the linking group ranging from 2-16, and y is the average degree of ethoxylation ranging from 1 to 5.
7. The cleaning composition of claim 6 wherein said linking group has 5 or more moles of propoxylation.
8. The cleaning composition of claim 7 wherein said extended chain anionic surfactant is C 12 -(PO) 16 -(EO) 2 sulfate.
9. The cleaning composition of claim 1 , further comprising one or more of a co-surfactant, solvent, or water conditioning agent.
10. The cleaning composition of claim 1 , wherein said composition is a hard surface cleaning composition.
11. The cleaning composition of claim 1 , wherein the surfactant system is included in an amount of from about 40 wt. % to about 80 wt. % and the acid source is included in an amount of from about 0.1 wt. % to about 0.55 wt. %.
12. A laundry detergent composition comprising:
a surfactant system comprising an extended chain anionic surfactant and a linker surfactant of a branched alkyl glycerol ether, an ethoxylated alkyl glycerol ether, a C 2 to C 6 alcohol ethoxylate, and/or a Gemini surfactant having two or more head groups and two or more tails; and
a builder.
13. The laundry detergent composition of claim 12 wherein said linker surfactant is ethyl hexyl glycerol ether.
14. The laundry detergent composition of claim 12 wherein said extended chain anionic surfactant and the linker surfactant are present in a ratio of greater than 1:1 percent by weight of extended chain anionic surfactant to linker surfactant.
15. The laundry detergent composition of claim 12 wherein said extended chain anionic surfactant and the linker surfactant are present in a ratio of 1:1.2 or greater percent by weight of extended chain anionic surfactant to linker surfactant.
16. The laundry detergent composition of claim 12 wherein said ethoxylated alkyl glycerol ether has from about 1 to about 3 moles of ethoxylation.
17. The laundry detergent composition of claim 12 wherein said extended chain anionic surfactant comprises a compound of formula:
R-[L] x -[O—CH 2 —CH 2 ] y -M
where R is a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from about 6 to 20 carbon atoms, L is a linking group, M is any ionic species, x is the chain length of the linking group ranging from 2-16, and y is the average degree of ethoxylation ranging from 1 to 5.
18. The laundry detergent composition of claim 17 wherein said linking group has 5 or more moles of propoxylation.
19. The laundry detergent composition of claim 18 wherein said extended chain anionic surfactant is C 12 -(PO) 16 -(EO) 2 sulfate.
20. The laundry detergent composition of claim 12 , further comprising an enzyme.