High performance low viscoelasticity foaming detergent compositions employing extended chain anionic surfactants
AssigneeEcolab USA Inc.
InventorsVictor Fuk-Pong Man, Yvonne Marie Killeen, Derrick Richard Anderson
Life of this patent
Estimating the term…
Abstract
The invention meets the needs above by providing a surfactant system, mixture or blend that can be used as a part of a soaking composition. The surfactant system is capable of forming emulsions with, and thus removing, oily and greasy stains. In a preferred embodiment the surfactant compositions of the invention can remove non-trans fat and fatty acid stains. The invention involves foaming soaking compositions that have some or part of the anionic surfactant present in the same replaced with an extended chain anionic surfactant.
Claims20
A dishware soaking composition comprising:
- a positively charged polymer;
- an anionic surfactant comprising an extended chain anionic surfactant having the formula:
- R-[L]x-[O—CH2—CH2]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 wherein said linking group has greater than 5 moles of propoxylation, M is one or more of an ionic species comprising a carboxylate, a sulfonate, a sulfate, and/or a phosphate, x is the chain length of the linking group ranging from 5-16, and y is the average degree of ethoxylation ranging from 1 to 5;
- and
- a carrier, wherein said composition has less than 0.5 wt. % cocamide DEA.
A method of loosening greasy soils from dishware, the method comprising:
- applying to a soiled dishware a dishware soaking composition comprising a positively charged polymer, a carrier, and an anionic surfactant comprising an extended chain anionic surfactant having the formula:
- R-[L]x-[O—CH2—CH2]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 wherein said linking group has greater than 5 moles of propoxylation, M is one or more of an ionic species comprising a carboxylate, a sulfonate, a sulfate, and/or a phosphate, x is the chain length of the linking group ranging from 5-16, and y is the average degree of ethoxylation ranging from 1 to 5;
- and thereafter
- passing the dishware through a dishmachine.
Dependencies are inferred from the claim text.