CLEANING COMPOSITIONS EMPLOYING EXTENDED CHAIN ANIONIC SURFACTANTS
The invention discloses synergistic combinations of surfactants blends and cleaning composition. In certain embodiments a surfactant system is disclosed which includes extended anionic surfactants, linker surfactants, and a multiply charged cation component. 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 surfactant system or cleaning composition comprising:
an extended chain anionic surfactant,
a linker surfactant; and
a multiply charged cation component selected from the group consisting of: Ca2+, Mg2+, a chelating agent, source of alkalinity or combinations thereof wherein the cleaning composition is capable of removing oily soils.
2 . The surfactant system of claim 1 wherein said linker surfactant is amine oxide.
3 . The surfactant system of claim 2 wherein said surfactant system is employed under alkaline or acid conditions.
4 . The surfactant system of claim 1 wherein said surfactant system removes oily soils at room temperature.
5 . The surfactant system of claim 1 wherein said linker surfactant is dioctyl sulfosuccinate.
6 . The surfactant system of claim 1 wherein said multiply charged cation is Mg2+.
7 . The surfactant system of claim 1 wherein said system forms an emulsion or microemulsion with oily soils.
8 . The surfactant system of claim 7 wherein said emulsion or microemulsion is formed with non-trans fats.
9 . The surfactant system of claim 1 wherein said extended 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 such as carboxylates, sulfonates, sulfates, and phosphates, 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.
10 . The surfactant system of claim 1 wherein said system is used as a pre-spotter.
11 . A cleaning composition including the surfactant system of claim 1 .
12 . The cleaning composition of claim 11 wherein said cleaning composition is a hard surface cleaner.
13 . The cleaning composition of claim 11 wherein said cleaning composition is a detergent.
14 . A method for removing a soil from a hard or soft surface comprising:
applying a cleaning composition containing the surfactant system according to claim 1 to the hard or soft surface and;
rinsing and/or wiping the cleaning composition from the hard or soft surface.
15 . An emulsion product comprising:
the surfactant system of claim 1 and an oil.
16 . The emulsion of claim 15 wherein said oil is a vegetable oil.
17 . The emulsion of claim 15 wherein said emulsion is an oil based lubricant.
18 . The emulsion of claim 15 wherein said oil synthetic oil.
19 . The emulsion of claim 15 wherein said emulsion is a microemulsion.
20 . A surfactant system of comprising:
from about 15% by weight to about 45% by weight of a anionic extended chain surfactant
from about 2.5% by weight to about 17.5% by weight linker;
and from about 2.5% to about 10% by weight of multiply charged cation.
21 . The surfactant system of claim 20 wherein said extended surfactant is C 12-14 —(PO) 16 -(EO) 2 -sulfate.
22 . The surfactant system of claim 20 wherein said linker is either amine oxide or dioctyl sulfosuccinate.
23 . The surfactant system of claim 20 wherein said multiply charged cation is selected from the group consisting of Ca2+, Mg2+, a chelating agent, source of alkalinity or combinations thereof.
24 . The surfactant system of claim 20 wherein said multiply charged cation is Mg2+.
25 . The surfactant system of claim 20 wherein said surfactant system is essentially free of unreacted alcohols.
26 . A method of laundering a cleaning article that is contacted with a non-transfat, comprising:
providing a cleaning article that has been contacted with a non-trans fat;
washing the cleaning article;
rinsing the cleaning article;
drying the cleaning article; and
treating the cleaning article with an effective amount of a composition comprising a surfactant system according to claim 1 , wherein the treating occurs prior to or during the washing step.