CA2352097A1

CA2352097A1 - High foaming, grease cutting light duty liquid detergent

Info

Publication number: CA2352097A1
Application number: CA002352097A
Authority: CA
Inventors: Leonard Zyzyck; Joan Gambogi; Evangelia Arvanitidou
Original assignee: Individual
Current assignee: Colgate Palmolive Co
Priority date: 1998-12-02
Filing date: 1999-12-01
Publication date: 2000-06-08
Also published as: EP1135453A1; WO2000032725A1; US6214783B1; AU756405B2; AU2161100A; US6387860B1

Abstract

A light duty, liquid comprising: a paraffin sulfonate, an alpha olefin sulfonate, an amine oxide, a magnesium containing inorganic compound, and water.

Description

c CV . y'O.'s : EP.rI-VlllE\CHf:!~; Op : 31 - 8- O : 19 = 39 : I 908 878 7853-»
+49 89 2:3994 4fi5 : # 4 . J 'J ~ 1 . ~ ,; . 1U V V v a ~ 1 :, a 1 . 1, n ! ~ L 1 A 1'. . :.a L . t n !
n r . : L = _ l .

la HIGH FOAMING, GREASE CUTTING SIGHT DUTY LIQUID DETERGENT
IE~;~k round 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 andlor betaine surfactants wherein the nonionic detergent is not the major active surfactant. In U.S. Patent No.
3,658,985 an anionic based shampoo contains a minor amount of a fatty acid alkanolamide.
U.S.
Patent 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. Patent 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 di-ethanolamide. U.S. Patent No. 4,259,204 dixloses a shampoo comprising 0.8 to 20%
by weight of an anionic phosphoric acid ester and one additional surfactant which may be either anionic, amphote~~C, or nonionic. U.S. Patent No. 4,329,334 disdos8s an anionic-amphoteric based shampoo containing a major amount of anionic surfactant and lesser amounts of a betaine and nonionic surfactants.
U.S. Patent 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 andlor nonionic detergent in the Liquid deaning composition. Mowever, the foaming properties of these determent compositions are not discussed therein.
U.S. Patent 4,297,251 teaches a cleaning composition containing a vegetable lecithin detergency boosting ingredient and an alkyl ethoxylated sulfate surfactant.

AMENDED SHEET

c CV . 1 ON : L:P:1- MUGNCH6N US : ~ 1 - ti - 0 : t a : 4 U : 1 9Ut3 875 7853-.
+4:1 tZ9 '73J94~465 : # :3 W : c . n i ,: 1. J . J 7 1 sil .. ~.i L V A t 1, t f1 l i.:v i l~~ L _ : .., t 1~1L. Y 1 1v V , J v. , .. t 31-08-2000 ~ US 009928376 lb PCT/US94l09923 teaches a leaning composition Containing a protease enzyme and an alkyl ethoxylated alkyl ether sulfate.
U.S. Patent No. 4,129,515 discloses a heavy duty liquid detergent for laundering f~rics comprising a mixture of substantially equal amounts of anionic and nonionic AMENDED SHEET

surfactants, alkanolamines and magnesium salts, and, optionally, zwitterionic surfactants as suds modifiers.
U.S. Patent 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 7l0 surfactants as shown in U.S. Patent 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. Patent 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. Patent 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 poiyoxyethylene nonionic detergent.
U.S. Patent No. 4,595,526 describes a composition comprising a nonionic 2~i surfactant, a betaine surfactant, an anionic surfactant and a C12-C14 fatty acid monoethanolamide foam stabilizer.

c ;.'\'. 1'ON : EYA -Atl_'ENCIiE!~ Ou : :3 ( _ f3 _ 0 : 19 : 40 1 908 878 78S:j-~ +4.J f3~3 '?:;yc),~4f;5 : ,a f;
31-08-2CI00 J J ~ " "' '4 "''~"' L i " L." L L. ~i. 1 If.L.! 1 ~1 V. ~ ~ : ~ ' summary of the Invention It has now been found that a high toaming 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 suffonate, 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 andlor 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 fakty acid alkanol amide, abrasive, silicas, tricloscan, alkaline earth metal carbonates, alkyl glycine surfactant, cyclic innidinium surfactant, or more than D.2 wt. % of a perfume or water insoluble hydrocarbon other than trichlorocarbanilibe.
_D~taifed Dascript'o~ n of the Invention The present invention relates to a light duty liquid detergent which comprises 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 3% 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 suifonate surfactant, an ethoxylated alkyl ether sulfate surfactant, a polyoxyalkylene glycol fatty acid, a mono- or di-saccharides, a AMENDED SHEET

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 C12-C20 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 C12-18 carbon atoms chains, and more preferably they are of C14-17 chains.
Paraffin sulfonates that have the sulfonate groups) distributed along the paraffin chain are described in U.S. Patents 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 C14-17 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 (S03) with long-chain olefins containing 8 to 25, preferably 12 to 21 carbon atoms and having the formula RCH=CHR1 where R is a higher alkyl group of 6 to 23 carbons and R1 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 18 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:

C
~V. VUN.: f~l',~-MU~NCHEN E~5 ::31 - 8- 0 : ly: øy : 1 J08 878 7853-. 1. J
+q.9 89 239~J~~4.E,~.5: H 7 VVV .~.~1:~. wVLW'~lL :.'SuL: L'Lt(11~1_7.:.W . ,ILW l 31-O8-x!000 5a R1-N--~O
I

wherein R~ is a Cep-Cog a linear or branched chain alkyl group, R2 is a C~-C1g linear alkyl group and R3 is a C1-C~ g linear alkyl group, or the amido radical:
O H
Il I
R - C - N - (CH2)a-urherein R is an alkyl group having 9 to 19 Carbon atoms and a is the integer 1 to 4: R2 and R3 are each alkyl groups having 1 to 3 carbons and preferably 1 carbon;
The magnesium inorganic compound used at a concentration of 0.25 wt.
°% to 3 Hrt. %, more preferably 0.5 wt. % to 2 wt. % of the instant compos'ttion is a magnesium oxide, sulfate or chloride. The magnesium salt or oxide provides several benefits including improved cleaning performance in dilute usage, parlicuiarly in soft water areas. Magnesium sulfate, either anhydrous or hydrated (e.g., heptahydrate), is especially preferred as the magnesium salt. Good results also have been obtained ~nrith magnesium oxide, magnesium chloride, magnesium acetate, magnesium propionate and magnesium hydroxide. These magnesium salts can be used with formulations at neutral or acidic pH since magnesium hydroxide will not precipitate at these pH levels.
The wafer is present at a concentration of 40 wt. % to 8,3 wt. %.
In addition to the previously mentioned essential and optional constituents of the iit~ht duty liquid detergent, one may also employ normal and conventional adjuvants, provided they do not adversely affect the properties of the detergent, Thus, there may be used various coloring agents and perfumes; ultraviolet light absorbers such as the Uvinuts, which are products of GAF Corporation; sequestering agents such as ethylene diamine tetraacetates; magnesium sulfate heptahydrate; pH modifiers, preservative, AMENDED SHEET

C
.'V. VON : EPA-MI~ENCHEN OS : ~l - 8i 0 : 19: 40 : 1 9U8 878 7853 +49 t39 '__>39i344G5 : #! 8 'VL',l ~TJ:u4 '.W LUI'SlL IWL.11 L'L:.l,vtl1_..1~~ 11:~, J;~v 31-08-2000 . U S 009928376 5b color stabilizer; etc, The proportion of such adjuvant matgriais, in total will normally not exceed 15% by weight of AMENDED SHEET

c 'CV. ~'UN : !rl'A - AIIENCHf:N 05 : 31 - 8- 0 : 19 = 41 : 1 ;3U8 878 78~~3-.
+g.c~_ 89 ?:39944E~5 :
~ V L U : , a L 1 :1 1 ..:' ~ ! L L 1 .l :: i 111 L .1 1 31-08-2000 ",,. ~'' ', 1 the detergent composition, and the percentages of most of such individual components will be a maximum of 5% by weight and preferably less than 2°~ by weight. Sodium iormate or formalin can be included in the formula as a perservative at a concentration of 0.1 to 4.0 wt. %. Sodium bisulfite can be used as a color stabilizer at a concentration of 0.01 to 0.2 wt. °~. The present light duty liquid detergents such as dishwashing liquids are readily made by simple mixing methods from readily available components which, on storage, do not adversely affect the entire composition.
Solubilizing agent :>uch as ethanol, sodium chloride andlor sodium salts of Ct-C3 substituted benzene sulfonates hydrotropes such as sodium xylene or sodium xylene sulfonate are used at a concentration of i % to 15% by weight to assist in solubilizing the surfactants. The viscosity of the light duty liquid composition desirably will be at least 100 centipoises (cps) at room temperature, but may be up to i ,000 centipoises as measured with a lBrookfield Viscometer using a number 21 spindle rotating at 20 rpm. The viscosity of 'the light duty liquid composition may approximate those of commercially acceptable light duty liquid compositions now on the market. The viscosity of the light duty liquid composition and the light duty liquid composition itself remain stable on storage for lengthy periods of time, without color changes or settling out of any insoluble materials.
The pH of the composition is substantially neutral to skin, e.g., 4.5 to 8 and preferably 5.0 to 7Ø The pH of the composition can be adjusted by the addition of Na20 (caustic soda) to the composition.
The instant compositions have a minimum foam volume of 350 mls after 40 rotation at 2b°C as measured by the foam volume test using 0.033 wt. %
of the composition in 150 ppm of water. The foam test is an inverted cylinder test in which i 00 ml. of a 0.033 wt. °~ LDL formula in 150 ppm of H20 is placed in a stoppered graduate cylinder (500 ml) and inverted 40 cycles at a rate of 30 cyciesJminute. Aft 40 inversions, the foam volume which has been generated is measured in mls insic the graduated cylinder. This value Includes the 100 ml of LOL solution inside the cylinder.

AMENDED SHEET

The following examples illustrate liquid cleaning compositions of the described invention. Unless otherwise specified, all percentages are by weight. The exemplified compositions are illustrative only and do no limit the scope of the invention.
Unless otherwise specified, the proportions in the examples and elsewhere in the specification are by weight.
Description of the Preferred Embodiments Example 1 The following formulas were prepared at room temperature by simple liquid mixing procedures as previously described A B

14/C16 Sodiuma ha olefin sulfo 16 24 nate _ 5.5 10 Cocoamido ro I amine oxide 14-C17 Paraffin Sulfonate 22.5 12 Ma nesium Chloride 6-H drate 4.2 4.2 ater Bal. Bal.

Foam Volume ml 362 398

Claims

WHAT IS CLAIMED IS

1, A light duty liquid detergent composition comprising by weight:
(a) 6% to 30% of a C10-C20 paraffin sulfonate;
(b) 12% to 22% of an alpha olefin sulfonate;
(c) 3% to 12% of an amine oxide;
(d) 0.25% to 3% of a 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.

2. A light duty liquid composition according to Claim 1 which includes, in addition, 1% to 15% by weight of a solubilizing agent which is ethanol, sodium chloride and/or a water soluble salts of C1-C3 substituted benzene sulfonate hydrotropes and mixtures thereof.

3. A light duty liquid composition according to Claim 1 further including a preservative.

4. A light duty liquid composition according to Claim 1 further including a color stabilizer.

5. A light duty liquid cleaning composition according to Claim 1 wherein said magnesium containing inorganic compound is magnesium sulfate.