High foaming, grease cutting light duty liquid detergent

Details High foaming, grease cutting light duty liquid detergent High foaming, grease cutting light duty liquid detergent

2000-05-05

2001-04-10

Delcotto, Gregory (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

For cleaning a specific substrate or removing a specific...

C510S428000, C510S432000, C510S433000, C510S503000, C510S492000

Reexamination Certificate

active

06214783

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to novel light duty liquid detergent compositions with high foaming and good grease cutting properties.
The prior art is replete with light duty liquid detergent compositions containing nonionic surfactants in combination with anionic and/or betaine surfactants wherein the nonionic detergent is not the major active surfactant. In U.S. Pat. No. 3,658,985 an anionic based shampoo contains a minor amount of a fatty acid alkanolamide. U.S. Pat. No. 3,769,398 discloses a betaine-based shampoo containing minor amounts of nonionic surfactants. This patent states that the low foaming properties of nonionic detergents renders its use in shampoo compositions non-preferred. U.S. Pat. No. 4,329,335 also discloses a shampoo containing a betaine surfactant as the major ingredient and minor amounts of a nonionic surfactant and of a fatty acid mono- or diethanolamide. U.S. Pat. No. 4,259,204 discloses a shampoo comprising 0.8 to 20% by weight of an anionic phosphoric acid ester and one additional surfactant which may be either anionic, amphoteric, or nonionic. U.S. Pat. No. 4,329,334 discloses an anionic-amphoteric based shampoo containing a major amount of anionic surfactant and lesser amounts of a betaine and nonionic surfactants.
U.S. Pat. No. 3,935,129 discloses a liquid cleaning composition containing an alkali metal silicate, urea, glycerin, triethanolamine, an anionic detergent and a nonionic detergent. The silicate content determines the amount of anionic and/or nonionic detergent in the liquid cleaning composition. However, the foaming properties of these detergent compositions are not discussed therein.
U.S. Pat. No. 4,129,515 discloses a heavy duty liquid detergent for laundering fabrics comprising a mixture of substantially equal amounts of anionic and nonionic surfactants, alkanolamines and magnesium salts, and, optionally, zwitterionic surfactants as suds modifiers.
U.S. Pat. No. 4,224,195 discloses an aqueous detergent composition for laundering socks or stockings comprising a specific group of nonionic detergents, namely, an ethylene oxide of a secondary alcohol, a specific group of anionic detergents, namely, a sulfuric ester salt of an ethylene oxide adduct of a secondary alcohol, and an amphoteric surfactant which may be a betaine, wherein either the anionic or nonionic surfactant may be the major ingredient.
The prior art also discloses detergent compositions containing all nonionic surfactants as shown in U.S. Pat. Nos. 4,154,706 and 4,329,336 wherein the shampoo compositions contain a plurality of particular nonionic surfactants in order to affect desirable foaming and detersive properties despite the fact that nonionic surfactants are usually deficient in such properties.
U.S. Pat. No. 4,013,787 discloses a piperazine based polymer in conditioning and shampoo compositions which may contain all nonionic surfactant or all anionic surfactant.
U.S. Pat. No. 4,450,091 discloses high viscosity shampoo compositions containing a blend of an amphoteric betaine surfactant, a polyoxybutylenepolyoxyethylene nonionic detergent, an anionic surfactant, a fatty acid alkanolamide and a polyoxyalkylene glycol fatty ester. But, none of the exemplified compositions contain an active ingredient mixture wherein the nonionic detergent is present in major proportion which is probably due to the low foaming properties of the polyoxybutylene polyoxyethylene nonionic detergent.
U.S. Pat. No. 4,595,526 describes a composition comprising a nonionic surfactant, a betaine surfactant, an anionic surfactant and a C
12
-C
14
fatty acid monoethanolamide foam stabilizer.
SUMMARY OF THE INVENTION
It has now been found that a high foaming liquid detergent properties can be formulated with a paraffin sulfonate, an alpha olefin sulfonate, an amine oxide, and magnesium ions.
Accordingly, one object of this invention is to provide novel, high foaming, light duty liquid detergent compositions containing an alpha olefin sulfonate surfactant.
To achieve the foregoing and other objects and in accordance with the purpose of the present invention, as embodied and broadly described herein the novel, high foaming, light duty liquid detergent of this invention comprises an alpha olefin sulfonate, an amine oxide, magnesium ions and water wherein the composition does not contain an alkyl benzene sulfonate surfactant, an ethoxylated alkyl ether sulfate surfactant, a glycol ether solvent, an ethoxylated and/or propoxylated nonionic surfactant, a zwitterionic surfactant, a mono- or di-saccharides, a polyoxyalkylene glycol, fatty acid, a builder, a polymeric thickener, an acid, a clay, a fatty acid alkanol amide, abrasive, silicas, tricloscan, alkaline earth metal carbonates, alkyl glycine surfactant, cyclic imidinium surfactant, or more than 0.2 wt. % of a perfume or water insoluble hydrocarbon other than trichlorocarbanilibe.
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a light duty liquid detergent which comprises approximately by weight:
(a) 6% to 30% of a paraffin sulfonate surfactant;
(b) 12% to 22% of an alpha olefin sulfonate surfactant;
(c) 3% to 12% of an amine oxide surfactant;
(d) 0.25% to 13% of magnesium containing inorganic compound; and
(e) the balance being water wherein the composition does not contain a glycol ether solvent, an ethoxylated and/or propoxylated nonionic surfactant, a zwitterionic surfactant, an alkyl benzene sulfonate surfactant, an ethoxylated alkyl ether sulfate surfactant, a polyoxyalkylene glycol fatty acid, a mono- or di-saccharides, a builder, a polymeric thickener, an acid, a clay, a fatty acid alkanol amide, abrasive, silicas, triclosan, alkaline earth metal carbonates, alkyl glycine surfactant, cyclic imidinium surfactant, or more than 0.2 wt. % of a perfume or water insoluble hydrocarbon other than trichlorocarbanilibe.
The C
12
-C
20
paraffin sulfonates used at a concentration of 6 wt. % to 30 wt. %, more preferably 8 wt. % to 14 wt. % in the instant compositions may be monosulfonates or di-sulfonates and usually are mixtures thereof, obtained by sulfonating paraffins of 10 to 20 carbon atoms. Preferred paraffin sulfonates are those of C
12-18
carbon atoms chains, and more preferably they are of C
14-17
chains. Paraffin sulfonates that have the sulfonate group(s) distributed along the paraffin chain are described in U.S. Pat. Nos. 2,503,280; 2,507,088; 3,260,744 and 3,372,188 and also in German Patent 735,096. Such compounds may be made to specifications and desirably the content of paraffin sulfonates outside the C
14-17
range will be minor and will be minimized, as will be any contents of di- or poly-sulfonates.
The present invention also contains 12 wt. % to 30 wt. %, more preferably 20 wt. % to 24 wt. % of an alpha olefin sulfonates, including long-chain alkene sulfonates, long-chain hydroxyalkane sulfonates or mixtures of alkene sulfonates and hydroxyalkane sulfonates. These alpha olefin sulfonate surfactants may be prepared in a known manner by the reaction of sulfur trioxide (SO
3
) with long-chain olefins containing 8 to 25, preferably 12 to 21 carbon atoms and having the formula RCH═CHR
1
where R is a higher alkyl group of 6 to 23 carbons and R
1
is an alkyl group of 1 to 17 carbons or hydrogen to form a mixture of sultones and alkene sulfonic acids which is then treated to convert the sultones to sulfonates. Preferred alpha olefin sulfonates contain from 14 to 16 carbon atoms in the R alkyl group and are obtained by sulfonating an a-olefin.
The amine oxides used at a concentration of 3 to 10 wt. %, more preferably 4 wt. % to 8 wt. % in forming the light duty liquid compositions are depicted by the formula:
wherein R
1
is a C
10
-C
18
a linear or branched chain alkyl group, R
2
is a C
1
-C
16
linear alkyl group and R
3
is a C
1
-C
16
linear alkyl group, or the amido radical:
wherein R is an alkyl group having about 9 to 19 carbon atoms and a is the integer 1 to 4: R
2
and R
3
are each alkyl groups having 1 to 3 carbons and preferably 1 carbon;
The magnesium inorganic

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