Alkaline cleaners based on alcohol ethoxy carboxylates
AssigneeEcolab Inc.
InventorVictor Fuk-Pong Man
Life of this patent
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Abstract
An alkaline cleaner composition comprising an alkyl or alkylaryl ethoxy carboxylate, a strong chelating agent and a source of alkalinity, its manufacture and use in removing greasy soil from hard surface areas is described. The compositions are especially effective in removing lime-soaps in such greasy soil especially on institutional and commercial kitchen floors.
Claims5
An aqueous alkaline cleaner composition for removing greasy soil containing lime-soaps from hard quarry or ceramic tile surfaces consisting essentially of:
- (1) about 0.1-20 wt % alkylaryl ethoxy carboxylates of the formula;
- R—O—(CH2CH2O)n(CH2)m—CO2X
- wherein R is
- in which R1 is a C4-C16 alkyl group,
- n is an integer of 1-20,
- m is an integer of 1-3, and
- X is hydrogen, sodium, potassium, lithium, ammonium, or an amine cation selected from monoethanolamine, diethanolamine and triethanolamine;
- (2) about 1-20 wt % of a chelating agent selected from the group consisting of nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, and diethylene-triamine pentaacetic acid, and
- (3) about 2-30 wt % of a source of alkalinity selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, potassium hydroxide, sodium hydroxide, ammonia, ammonium hydroxide and mixtures thereof.
A method for removing greasy soil containing lime-soaps from hard quarry or ceramic tile surfaces comprising applying to said surface a dilute aqueous alkaline cleaner composition which consists essentially of in concentrate form:
- (1) about 0.1-20 wt-% alkylaryl ethoxy carboxylates of the formula;
- R—O—(CH2CH2O)n(CH2)m—CO2X
- wherein R is R1
- in which R1 is a C4-C16 alkyl group,
- n is an integer of 1-20,
- m is an integer of 1-3, and
- X is hydrogen, sodium, potassium, lithium, ammonium, or an amine cation selected from monoethanolamine, diethanolamine and triethanolamine;
- (2) about 1-20 wt-% of a chelating agent selected from the group consisting of nitrilotriacetic acid, ethylenediamine tetraacetic acid, N-hydroxyethyl-ethylenediamine triacetic acid, and diethylene-triamine pentaacetic acid, and
- (3) about 2-30 wt-% of a source of alkalinity.
Dependencies are inferred from the claim text.