Light duty liquid cleaners comprising a monoalkoxylated quaternary ammonium surfactant
View Patent ↗The present invention relates to a clear liquid detergent composition suitable for use in dishwashing and multipurpose cleaners for household applications as well as for industrial and institutional uses. The clear liquid detergent comprises a) 1 to 40 percent an anionic surfactant or group of anionic surfactants, b) 0.01 to 10 percent cationic surfactants, and c) optionally, 0.05 to 15 percent amphoteric and/or nonionic surfactants. More particularly, the light duty detergents of the present invention cationic compounds of the formula: wherein R 1 is C 8 -C 22 -alkyl, C 8 -C 22 -alkenyl, C 8 -C 22 -alkyl/alkenylamidopropyl, C 8 -C 22 alkoxyalkenylethyl, C 8 -C 22 -alkyl/alkenyi(poly)alkoxyalkyl, C 8 -C 22 -alkanoylethyl or C 8 -C 22 -alkenoylethyl, R 2 is C 1 -C 22 -alkyl, Cl—C 22 -alkenyl or a group of the formula —A—(OA) n —OH, R 3 and R 4 are C 1 -C 22 -alkyl, C 2 -C 21 -alkenyl or a group of the formula —A—(OA) n —OH, A is —C 2 H 4 — and/or —C 3 H 6 — and n is a number from 0 to 20 and X is an anion.
1. A light duty liquid cleaner consisting of
a) water;
b) from 1 to 40% by weight of an anionic surfactant;
c) from 0.01 to 10% by weight of a cationic compound of the formula
wherein R 1 is selected from the group consisting of C 8 -C 22 -alkyl, C 8 -C 22 -alkenyl, C 8 -C 22 -alkyl/alkenylamidopropyl, C 8 -C 22 alkoxyalkenylethyl, C 8 -C 22 -alkyl/alkenyi(poly)alkoxyalkyl, C 8 -C 22 -alkanoylethyl, C 8 -C 22 -alkenoylethyl, and mixtures thereof,
R 2 is a group of the formula —A—(OA) n —OH,
R 3 and R 4 are selected from the group consisting of C 1 -C 22 -alkyl, C 2 -C 21 -alkenyl, or mixtures thereof.
A is —C 2 H 4 — and/or —C 3 H 6 — and
n is a number from 0 to 20 and
X is an anion;
d) from 0.05 to 15% by weight of a non-ionic surfactant and/or an amphoteric surfactant;
e) at least one additive or auxiliary selected from the group consisting of builders, salts, solubilizers, solvents, enzymes, thickeners, preservatives, fragrances, dyes, pearlizing agents, emulsifiers, sequestering agents, and mixtures thereof, wherein said thickeners are selected from the group consisting of hydrogenated castor oil, salts of long-chain fatty acids, polysaccharides, carboxymethylcellulose, hydrocellulose, polyethylene glycol mono- and di esters of fatty acids, poly acrylates, polyvinyl alcohol, polyvinylpyrolidone, electrolytes, and mixtures thereof; and
wherein in said light duty cleaner glycols are dispensed with.
2. A light duty liquid cleaner as claimed in claim 1 , wherein the anionic surfactant is selected from the group consisting of alkylbenzene sulfonates, olefinsulfonates, alkyl sulfates, alkyl ether sulfates, sec. Alkanesulfonates, and mixtures thereof.
3. A light duty liquid cleaner as claimed in claim 1 , wherein the cationic compound is an C 8 -C 22 -alkyl- or C 8 -C 22 -alkenyl-dimethyl-hydroxy-ethyl ammonium compound.
4. A light duty liquid cleaner as claimed in claim 1 , wherein the anionic surfactant is present in an amount of from 3 to 20% by weight.
5. A light duty liquid cleaner as claimed in claim 1 , wherein the cationic compound is present in an amount of from 0.02 to 5% by weight.
6. A process for washing dishes comprising contacting the dishes with the light duty liquid cleaner of claim 1 .