Reduced residue hard surface cleaner comprising hydrotrope
AssigneeStepan Company
InventorsIrma Ryklin, Arshad Malik
Life of this patent
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Abstract
Disclosed are aqueous hard surface cleaning compositions comprising detergent surfactant and, optionally, detergent builder and a hydrotrope in an amount sufficient to prevent filming and/or streaking after a surface is cleaned with the compostions.
Claims15
In a composition for cleaning hard surfaces comprising at least one detergent surfactant and at least one detergent builder where the composition is free from organic solvents, the improvement comprising a hydrotrope in a ratio of the weight of hydrotrope to the weight of solids exclusive of hydrotrope of about at least about 1:3.5 and wherein the ratio of the weight of hydrotrope to the weight of builder is about 1:1.8 to 4:1.
A method for preparing a hard surface cleaner composition capable of cleaning a hard surface substantially without providing the surface with a residue visible as a film or streaks comprising:
- (a) preparing an aqueous detergent base comprising at least one surfactant and at least one builder where the detergent base is free from organic solvents;
- and
- (b) adding to the aqueous base a hydrotrope in a ratio of the weight of hydrotrope to the combined weight of other solids of at least about 1:3.5.
A liquid hard-surface cleaning composition free from organic solvents and comprising:
- (a) from 0.1% to 40% of an anionic detergent surfactant selected from the group consisting of salts linear alkyl benzene sulfonic acid, salts of coconut alkyl ether sulfate containing 3 moles of ethylene oxide, mono-salts of alpha-sulfonated alkyl esters of fatty acids;
- di-salts alpha-sulfonated alkyl esters of fatty acids, the sodium and potassium salts of coconut fatty acids, zwitterionic surfactants, betaine surfactants, sulfobetaine surfactants, and mixtures thereof;
- (b) a hydrotrope selected from the group consisting of benzene sulfonates, xylene sulfonates, naphthalene sulfonates, short chain alkyl benzene sulfonates, medium chain (C6-8) alkyl sulfonates, medium chain (C6-C11) alkyl sulfates, medium chain (C6-C10) alkyl dimethyl amine oxides, and alkyl diphenyloxide disulfonates, medium chain (C6-11) alkyl ether (up to 10 moles of ethylene oxide) sulfates, polymeric hydrotropes, an alkylpolyglycoside having an average of about 10 carbon atoms in the alkyl portion, and mixtures thereof;
- (c) from 0.01% to 30% of a deterrent builder;
- and
- (d) the balance water;
- the amount of hydrotrope producing a weight ratio of hydrotrope to solids exclusive of hydrotrope of at least 1:3.5;
- and wherein the ratio of hydrotrope to detergent builder is from 1:1.8 to 4:1.
An aqueous liquid hard-surface cleaning composition free from organic solvents and comprising:
- (a) from about 1 to 10 weight % of a detergent surfactant selected from
- sodium linear alkyl benzene sulfonate (LAS);
- salts of coconut alkyl ether sulfate containing 3 moles of ethylene oxide;
- the adducts of primary, secondary, and tertiary alcohols having a range of alkyl chain lengths of from 11 to 15 carbon atoms and an average of 2 to 12 ethylene oxide moieties;
- the sodium and potassium salts of coconut fatty acids (coconut soaps);
- condensation products of a straight or branched chain alcohol containing from about 8 carbons to about 16 carbon atoms and having an average carbon chain length of from about 8 to about 12 carbon atoms with from about 2 to about 8 moles of ethylene oxide per mole of alcohol;
- an amide having the formula:
- wherein R is a straight-chain alkyl group containing from about 7 to about 15 carbon atoms and having an average carbon chain length of from about 9 to about 13 carbon atoms and wherein each R1 is a hydroxy alkyl group containing from 1 to about 3 carbon atoms or a hydroxyalkyl group ethoxylated with up to about 6 moles of ethylene oxide;
- zwitterionic surfactants;
- or
- phosphine oxide surfactants;
- or mixtures thereof;
- (b) a hydrotrope selected from the group consisting of benzene sulfonates, xylene sulfonates, naphthalene sulfonates, short chain alkyl benzene sulfonates, medium chain (C6-8) alkyl sulfonates, medium chain (C6-C10) alkyl dimethyl amine oxides, and alkyl diphenyloxide disulfonates;
- (c) from 0.01% to 30% of a detergent builder;
- and
- (d) the balance water;
- the amount of hydrotrope producing a weight ratio of hydrotrope to solids exclusive of hydrotrope of at least about 1:3.5;
- and wherein the ratio of hydrotrope to detergent builder is from 1:1.8 to 4:1.
Dependencies are inferred from the claim text.