PEG-modified castor oil based compositions for microemulsifying and removing multiple oily soils
AssigneeEcolab USA Inc.
InventorsVictor Fuk-Pong Man, Gang Pu
Life of this patent
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Abstract
Compositions are disclosed that include PEG-modified triglycerides as a surfactant. The mixtures form stable microemulsions with oils and fatty acids which can be the resultant product, such as lubricants, sunscreens, or triglyceride-based products. These emulsions or microemulsions are stable, irreversible, and can be created at low temperature. These can be used in detergents, rinse aids and the like to form microemulsions to remove oils and greasy soils, such as non-trans fats and fatty acids from substrates/surfaces often without the need for linker or other cosurfactants. Methods of making the compositions/microemulsions are included as well as uses thereof.
Claims46
A composition for forming stable emulsions or microemulsions with oils comprising:
- between about 45 wt. % and about 80 wt. % of a surfactant system comprising a PEG modified triglyceride of the following formula:
- R1CO2(CH2CH2O)lCH2CH(OCH2CH2)m(O2CR2)CH2(CH2CH2O)nCO2R3
- wherein R1, R2, and R3 are the same or different lipophilic moiety, a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from about 8 to 30 carbon atoms;
- and l, m, and n are the same or different number of moles of ethylene oxide (EO), having from about 1 to about 100 moles, wherein the PEG modified triglyceride is included in an amount sufficient to reduce surface tension and form a microemulsion;
- and
- one or more additional components comprising one or more of builders, chelating agents, dye transfer inhibiting agents, viscosity modifiers, dispersants, additional enzymes, and enzyme stabilizers, catalytic materials, bleaches, bleach activators, hydrogen peroxide, sources of hydrogen peroxide, preformed peracids, polymeric dispersing agents, threshold inhibitors for hard water precipitation pigments, clay soil removal/anti-redeposition agents, brighteners, suds suppressors, dyes, fabric hueing agents, perfumes, structure elasticizing agents, fabric softeners, carriers, additional hydrotropes, processing aids, solvents, pigments antimicrobials, pH buffers, processing aids, active fluorescent whitening ingredient, additional surfactants and mixtures thereof,
- wherein the composition is capable of forming a stable emulsion or microemulsion with oils.
An irreversible emulsion or microemulsion product comprising:
- about 33.3 wt. % of a surfactant system comprising a PEG modified triglyceride;
- about 33.3 wt. % of an oil;
- and
- about 33.3 wt. % of water,
- wherein the components, when heated to about 60 to 180 degrees F. form a stable irreversible emulsion or microemulsion.
A method of forming stable and irreversible emulsions with non-trans fats and fatty acids comprising:
- mixing about 33.3 wt. % of a surfactant system comprising a PEG modified triglyceride of the following formula:
- R1CO2(CH2CH2O)lCH2CH(OCH2CH2)m(O2CR2)CH2(CH2CH2O)nCO2R3
- wherein R1, R2, and R3 are the same or different lipophilic moiety, a linear or branched, saturated or unsaturated, substituted or unsubstituted, aliphatic or aromatic hydrocarbon radical having from about 8 to 30 carbon atoms;
- and l, m, and n are the same or different number of moles of ethylene oxide (EO), having from about 1 to about 100 moles, about 33.3 wt. % water, and about 33.3 wt. % of a non-trans-fat and/or fatty acid.
Dependencies are inferred from the claim text.