CZ418498A3 - Liquid cleansing agent with increased stability against gelatinization - Google Patents

Abstract

Liquid dishwashing compositions are disclosed which contain a robust surfactant system, a solvent to control viscosity, a hydrotrope to ensure appropriate solubility of the composition, and an effective amount of an anti-gelling polymer to inhibit gelling of the composition.

Description

Field of the Invention ^J

The invention relates to liquid dishwashing detergent compositions. The compositions comprise a surfactant system that is not sensitive to small variations in environmental parameters, is relatively water soluble, and has enhanced gelling stability.

BACKGROUND OF THE INVENTION

Liquid dishwashing detergent compositions with excellent grease action are highly desirable for the user and it is therefore essential that the detergent compositions herein incorporate a surfactant system insensitive to minor changes in environmental performance. Such surfactant systems, insensitive to small changes in environmental parameters, cause an increase in viscosity, making these compositions unsuitable for use. For this reason, solvents are added to the composition to reduce the viscosity of the composition to an acceptable value. The problem with these compositions is the evaporation of such a solvent over a period of time, which in turn leads to their gelation.

Another requirement for dishwashing detergents concerns their easy solubility in water prior to use, and this question is also somewhat contradictory to the presence of a surfactant system insensitive to minor parameter changes. Solutions to this problem are prepared formulations which additionally contain a hydrotropic agent which increases the solubility (and stability) of the formulation. However, we have now discovered that formulations containing a hydrotropic material have a greater tendency to gel than the same formulations not containing this hydrotropic material.

It is known that the addition of inorganic salts, such as chlorine salts, can reduce the susceptibility of the gelling agent to some extent. However, these salts are disadvantageous for use as inorganic salts, namely, they may negatively affect the solubility of the compositions and may also cause problems during formulation or corrosion problems.

It is therefore an object of the present invention to provide liquid dishwashing detergent compositions comprising a surfactant system insensitive to minor parameter changes and having effective solubility and increased gelling stability.

We have now found that the formulation - in a composition comprising a system of surfactants insensitive to minor parameter changes together with a solvent and a hydrotropic agent - of a polymeric gelling agent solves this problem.

φ

SUMMARY OF THE INVENTION The compositions of the present invention are liquid dishwashing detergent compositions comprising:

=> from 15% to 60% by wt. an alkyl ethoxy sulphate surfactant;

=> from 0% to 30% wt. an amine oxide surfactant;

from 0% to 2.0 wt. magnesium ions;

=> effective amount of solvent;

=> effective amount of hydrotrope; and => effective amount of the polymeric gelling agent.

The invention further encompasses a method of washing dishes using said compositions.

Alkylethoxysulfate surfactant

The compositions of the present invention comprise an alkyl ethoxy sulphate surfactant as an essential ingredient. Such surfactants are represented by the formula (1)

R 10 (CH ₂ CH ₂ O) _n SO ₃ M (1) wherein R 1 represents a straight or branched alkyl or alkenyl group having 9 to 15 carbon atoms, n represents 0.5 to 7 actual average number and M represents an alkali metal, an alkali earth metal, ammonium group or alkanol substituted ammonium group. If the number of carbon atoms R! is less than 9, the cleaning effect is insufficient, and if greater than 16, the stability of the composition at low temperatures is noticeably impaired and will therefore not be satisfactory. A very preferred number of carbon atoms is 10-13. Further, if the number of addition moles n of ethylene oxide in formula (1) is less than 0.5, the hand and skin stimulus increases and is no longer preferred if n is greater than 3, the effects worsen considerably, which is also undesirable. Accordingly, the desired range of addition moles of ethylene oxide is from 0.5 to 3.

The compositions of the present invention comprise from 15% to 60% by weight. the surfactant or mixture thereof, preferably from 15% to 40% by weight, most preferably from 20% to 30% by weight of the total composition. means.

I · I · 4 · 4 · 4 · 4 ·

Amine oxide surfactant ^J The compositions herein may also optionally, but preferably, contain amine oxide component of the surfactant. Such surfactants are represented by the formula (2)

R ₃

R ₂ -N ⁺ -O- (1)

R ₄ wherein R ₂ represents a straight or branched alkyl or alkenyl group having 10 to 16 carbon atoms and R ₃ and R ₄ respectively represent a methyl group or an ethyl group. If the number of carbon atoms R ₂ is less than 10, the cleaning effects of the composition are small and if the number of carbon atoms exceeds 16, stability at low temperatures greatly deteriorates, which is not preferred.

The compositions of the present invention comprise from 0% to 30% by weight. by weight of the total composition said surfactant, preferably from 1.5% to 15% by weight, most preferably from 1.5% to 10% by weight. means.

magnesium ions

The compositions of the invention comprise, as a further optional but preferred component, from 0% to 2.0% by weight, most preferably from 0.3% to 2% by weight. magnesium ions, which can be added to the liquid detergent compositions of the invention in order to achieve enhanced product stability, favorable foaming, and non-irritating cosmetic properties of the product.

The magnesium ions are preferably introduced by neutralizing the acid form of the alkyl ethoxy surfactants with magnesium oxide or liquid mass of magnesium hydroxide in water. This method is normally limited by the amount of anionic surfactants in the composition. An alternative method is to use MgCl ₂ , MgSO ₄ or other inorganic magnesium salts. These materials are less preferred because they can cause corrosion problems (chloride salts), reduced solubility of the formulations, or formability / stability problems of the compositions. Therefore, it is desirable to limit the supply of inorganic salts to less than 2 wt%, preferably less than 1 wt%. anionic inorganic counter ions.

·· «4 44 4444

4 4 · 4 4 4 4

4 4 4 9 4 5

4 4 9 4

Solvent

The compositions of the invention comprise, as an additional constituent, an effective amount of solvent such that the viscosity of the compositions herein is in the range of 50 cps to 2000 cps, preferably 100 cps to 450 cps, most preferably 100 cps to 350 cps, measured at 20 ° C. Brookfield viscometer, shaft No. 18.

Solvents suitable for use in the invention include low molecular weight alcohols such as C 1 -C ₁₀ , preferably C 1 -C ₄ mono- and dihydric alcohols, preferably ethyl alcohol, isopropyl alcohol, propylene glycol, and hexylene glycol.

The compositions of the invention typically contain from 3% to 20% by weight. % of the total alcohol composition or mixture thereof, preferably 3% to 15% by weight, most preferably 5% to 10% by weight. means.

Hydrotropic substance

The compositions of the present invention contain, as a further essential component, a hydrotropic agent in an effective amount such that the compositions are reasonably soluble in water. The term "adequate solubility in water" indicates that the solubility of the product is adequate for the particular washing practices and conditions of use. Products that do not dissolve in water fast enough may result in negative washing effects with respect to grease removal, saponification, easy washability of the product from the dishes / glass, etc., or the possibility of settling residual product on the dishes / glass after use.

Hydrotropes suitable for use in the invention include anionic type hydrotropes, particularly sodium, potassium and ammonium xylene sulfonates (preferred), sodium, potassium and ammonium toluenesulfonates, sodium, potassium and ammonium cumene sulfonates (most preferred), and mixtures thereof and corresponding compounds (as described in No. 3,915,903).

The compositions of the invention typically contain from 1.0% to 15% by weight. % of the total composition hydrotrope or mixtures thereof, preferably from 3% to 10% by weight, most preferably from 3% to 6% by weight. means.

Polymeric anti-gelling agents

The compositions of the present invention comprise, as a further essential component, a polymeric gelling agent which enhances the gelling resistance of the composition. Polymers suitable for use in the invention have a molecular weight of at least 500, preferably 500 to 20,000, more preferably 1,000 to 5

000, most preferably 1,000 to 3,000.

9 9 99 99 99 99 99

999 99 9,999

4 44 44 444444

444 4945 4 9

The desired amount of polymer to be gelled can be readily determined by test and varying test values, but the compositions of the invention generally contain from 0.5% to 6% by weight. the total composition of the polymeric gelling agent or a mixture thereof, preferably from 0.5% to 4% by weight, most preferably from 1.5% to 3% by weight of the composition.

Polymers suitable for use in the invention include:

=> polyalkene glycols, preferably polyethylene glycols and polypropylene glycols;

=> polyamines; polyamine polymers, highly preferred for the purposes of the invention, are alkoxylated or polyalkoxylated polyamines. Such materials may advantageously be present as molecules of empirical structures with repeating units:

- [N - R] - n amine form

I (alkoxy) _y

R ¹

AND

- [N ⁺ - R] - n nX 'quaternary form

I (alkoxy) _y wherein R is a hydrocarbyl group, usually containing 2 to 6 carbon atoms; R ¹ can be a C 1 -C 20 hydrocarbon; alkoxy groups are ethoxy, propoxy and the like and y is 2 to 30, most preferably 10 to 20; n is an integer of at least 2, preferably from 2 to 20, most preferably 3 to 5; and X is an anion, such as halide or methyl sulfate, obtained from the quaternization reaction.

The most preferred polyamines for use in the invention are the so-called ethoxylated polyethylene amines, i.e. the polymerized reaction product of ethylene oxide with ethyleneimine having the general formula:

(EtO) _ [N -CH ₂ _ CH ₂ _] _ n _ N_ (EtO) y (EtO) y (EtO) y · · · · · · · · φ · · · where y = 2 to 30. For use in the invention, ethoxylated polyethylene amine, especially ethoxylated tetraethylenepentamine, is very preferred. and quaternary ethoxylated hexamethylenediamine.

=> terephthalate-based polymers; terephthalate polymers suitable for use in the invention include polymers having the formula:

0 0 0 0 0

II II II II II II

X- (OCH ₂ CH ₂ ) _n - [(- OC-R ¹ -CO-R ² -) u (-OC-R ¹ -CO-R ³ -) v -] - OC-R-CO- (CH ₂ CH ₂ O _n -X wherein R ¹ is a 1,4-phenylene moiety; R ² is 1,2-propylene base portion; R ³ is essentially a polyoxyethylene moiety - (CH ₂ H ₂ O) _q -CH ₂ -CH ₂ -; each X is ethyl or preferably methyl; each n is from about 12 to about 45; q is from about 12 to about 90; the average u is from about 5 to about 20; the average value of v is from about 1 to about 10; the mean u + v is from about 6 to about 30; a ratio of about 1 to about 6.

Highly preferred polymers for use in the invention are polymers of the formula:

0 0 0

X- (OCH ₂ CH ₂ ) _n - (OCR ¹ -C -OR ² ) -u- (O-CR ¹ -CO) - - (CH ₂ CH ₂ O) - _n -X wherein X may be any suitable end group each X is selected from the group consisting of hydrogen and alkyl or acyl groups containing from 1 to about 4 carbon atoms, preferably 1 to 2 carbon atoms, most preferably alkyl. Further, the alkyl groups may contain anionic, cationic or nonionic substituents, such as sulfonate, sulfato, ammonium, hydroxy, etc., n is selected to achieve suitable water solubility and suitably ranges from generally average values from about 10 to about 10 50, preferably from about 10 to about 25. Very little material, preferably less than about 10 mol, should be incorporated in the composition. %, more preferably less than 5 mol. %, most preferably less than 1 mol. %, in which u is greater than 5. Further, at least 20 mol. %, preferably at least 40 mol. % of the material in which u ranges from 3 to 5.

The R ¹ moieties of the base are 1,4-phenylene moieties. As used herein, the term "R ¹ moieties represent 1,4-phenylene moieties" refers to compounds wherein the R ¹ moieties are only 1,4-phenylene moieties, or compounds that are further partially substituted by other arylene or alkarylene moieties, alkene moieties, alkenylene moieties, or mixtures thereof. Arylene and alkarylene moieties that may be # 9 ############################################## 9 ~ · partially replace 1,4-phenylene include 1,3-phenylene, 1,2-phenylene, 1,8-naphthylene, 1,4-naphthylene, 2,2-diphenylene 4,4'-Diphenylene and mixtures thereof. The alkene and alkenylene moieties which may be partially substituted for the compound include ethylene, 1,2-propylene, 1,4-butylene, 1,5-pentene, 1,6hexamethylene, 1,7-heptamethylene, 1,8-octamethylene, 4-Cyclohexylene and mixtures thereof.

The R ¹ moieties preferably include only (i.e., comprise 100%) 1,4-phenylene moieties, i.e. each R ¹ moiety is 1,4-phenylene.

Suitable ethylene or substituted ethylene moieties ^R2 moieties include ethylene, 1,2propylen, 1,2-butylene, 1,2-hexylene, 3-methoxy-1,2propylen and mixtures thereof. The R ² moieties are preferably basically ethylene moieties or preferably 1,2-propylene moieties or mixtures thereof.

Preferably, from about 75% to about 100%, more preferably from about 90% to about 100% of the R ² moiety is 1,2-propylene moieties.

The value of n is at least approximately 10, but the extension of the n values is actual. The value of each n typically ranges from about 10 to about 50. The value of each n preferably ranges from about 10 to about 25.

The most preferred polymers for use in the invention include polymers in accordance with the formula:

OO 0 0

X- (OCH ₂ CH ₂ ) _n - (- OCR ¹ -C -OR ² ) -u- (OCR ¹ -CO) - (CH ₂ CH ₂ O) _n -X wherein X is methyl, n is 16, R ¹ is 1,4-phenylene moiety, R ² is 1,2-propylene part and the base is between 3 and fifth

Optional folders

The compositions of the invention may further comprise a number of optional ingredients described below.

The compositions of the invention preferably comprise certain additional surfactants to promote foaming, cleansing and / or skin irritation. This category includes some anionic surfactants used in liquid dishwashing detergents or detergent gels. Examples of anionic adjunct surfactants which are useful in the present invention include the following classes:

1) Alkylbenzene sulfonates in which the alkyl group contains from 9 to 15 carbon atoms, preferably 11 to 14 carbon atoms in a straight or branched chain configuration. A highly preferred linear alkyl benzene sulfonate contains about 12 carbon atoms. These surfactants are described in more detail in U.S. Pat. U.S. Patent Nos. 2,220,099 and 2,477,383.

2) Alkyl sulphate compounds obtained by sulfating an alcohol having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms. Alkyl sulfates have the formula ROSO ₃ -M ⁺ wherein R is a C ₈ -C ₂ 2 alkyl group and M is a mono- and / or divalent cation.

3) Paraffin sulfonates having 8 to 22 carbon atoms in the alkyl portion, preferably 12 to 16 carbon atoms. These surfactants are commercially available under the name Hostapur SAS from Hoechst Celanese.

4) Olefinine sulfonates having 8 to 22 carbon atoms, preferably 12 to 16 carbon atoms. U.S. Pat. No. 3,332,880 discloses suitable olefin sulfonates.

5) Alkyl glyceryl ether sulfonates having 8 to 22 carbon atoms in the alkyl portion, preferably 12 to 16 carbon atoms.

6) Fatty acid ester sulfonates of the formula:

R ¹ -CH (SO 3 -M ⁺ ) CO ₂ R ₂ wherein R ¹ is a straight or branched alkyl having from about C 8 to C 18, preferably C12 to C16 and R ² is a straight or branched alkyl having from about C 1 to C ₆ , preferably C 6 and M ⁺ represent a monovalent or divalent cation.

7) Sulfur surfactants of secondary alcohols having 6 to 18, preferably 8 to 16 carbon atoms.

Other suitable 'common' surfactants include:

(8) Fatty acid amide surfactants having the formula:

O

II

R ⁶ - C - N (R ⁷ ) ₂ wherein R ⁶ is an alkyl group containing from 7 to 21, preferably from 9 to 17 carbon atoms and each R ⁷ is selected from the group consisting of hydrogen, C 1 -C 1 alkyl, C 1 -C ₄ hydroxyalkyl and (C ₂ H ₄ O) x H, wherein x varies from 1 to about 3.

9) Polyhydroxy fatty acid amide surfactants of the structural formula:

♦ · Φ • • • Φ · » « • φφφ · « φ φ φφ • φ · φ φ * • • • Φ • φ Φ φ · φ φ φ φ • • • • • φ Φ φ • ♦ · • · · • Φ Φ · • φ · •

OR ¹

II I

^R2 - C - N - Z (I) wherein ^R1 is hydrogen, C1-C4 hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl or a mixture thereof, preferably C1-C4 alkyl, more preferably Cl or C2 alkyl, most preferably on whether the alkyl ( ie methyl); and R ² is C ₅ -C 31 hydrocarbyl, preferably straight C ₁ -C ₁₇ alkyl or alkenyl, more preferably straight C ₉ -C ₁₇ alkyl or alkenyl, most preferably straight C 1 -C ₁₇ alkyl or alkenyl or mixtures thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain containing at least 3 hydroxyl groups directly bonded to the chain or alkoxylated derivatives thereof (preferably ethoxylated or propoxylated). Z will preferably be derived from a reducing sugar in a reductive amination reaction; Z is preferably glycityl. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose xylose. Z will preferably be selected from the group consisting of -CH ₂ - (CHOH) _n -CH ₂ OH, -CH (CH ₂ OH) - (CHOH) _n -CH ₂ OH, -CH ₂ .

(CHOH) ₂ (CHOR ') (CHOH) -CH ₂ OH wherein n is an integer from 3 to 5 inclusive, and R' is hydrogen or a cyclic or aliphatic monosaccharide or alkoxylated derivatives thereof. Most preferred are glycityls wherein n is 4, especially -CH ₂ - (CHOH) ₄ -CH ₂ OH

R ¹ , in formula (I), may be, for example, N-methyl, N-ethyl, N-propyl, N-isopropyl, N-butyl, N-2-hydroxyethyl or N-2-hydroxypropyl.

R ² -CO-N <may be eg coconut oil amide, stearate amide, oleanane amide, laurate amide, myristan amide, caprinate amide, palmitate amide, tall oil amide, etc.

Z may be 1-deoxyglucityl, 2-deoxyfruktyl, 1-deoxymaltyl, 1-deoxylactyl, 1-deoxygalactyl, 1deoxymannityl, 1-deoxymaltotriotyl, etc.

(10) Betaine-based detergent surfactants having the general formula:

R - N ⁽⁺⁾ (R ¹ ) ₂ - R ² COO ⁽⁾ wherein R is a hydrophobic group selected from the group consisting of alkyl groups containing from 10 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, alkylaryl and arylalkyl groups containing a similar number of carbon atoms with a benzene ring modified equivalent to approximately 2 carbon atoms and similar structures interrupted by an amide or ether bond; each R ¹ is an alkyl group containing from 1 to about 3 carbon atoms; and R ² is an alkylene group containing from 1 to about 6 carbon atoms.

11) Ethylene oxide condensates, which can be broadly defined as compounds prepared by condensation of ethylene oxide groups (hydrophilic in nature) with an organic hydrophobic compound, fcfc ·· · · · fcfc · · fcfc Fcfc which may be aliphatic or alkyl-aromatic in nature. The length of the hydrophilic or polyoxyalkene radical which is condensed by any single hydrophobic group can be readily adjusted to obtain a water-soluble compound having the desired balance between hydrophilic and hydrophobic elements.

Examples of such ethylene oxide condensates useful as suds stabilizers are the condensation products of aliphatic alcohols with ethylene oxide. The alkyl chain of the aliphatic alcohol may be either straight or branched and generally contains from about 8 to about 18, preferably from about 8 to about 14 carbon atoms for higher suds stabilizer effects, ethylene oxide is present in amounts from about 8 moles to about 30 moles, preferably from about 8 moles to about 14 moles of ethylene oxide per mole of alcohol.

12) Cationic quaternary ammonium surfactants of the formula:

[R ¹ (OR ² ) y] [R ³ (OR ² ) y] ₂ R ⁴ N ⁺ X or amine surfactants of the formula:

[R ¹ (OR ² ) y] [R ³ (OR ² ) y] R ⁴ N wherein R ¹ is an alkyl or alkylbenzyl group having from about 6 to about 16 carbon atoms in the alkyl chain; each R ² is selected from the group consisting of -CH 2 CH 2 -, CH 2 CH (CH 3) -, -CH 2 CH (CH 2 OH) -, -CH 2 CH 2 CH 2 - and mixtures thereof; each R ³ is selected from the group consisting of C 1 -C 4 alkyl, C 1 -C ₄ hydroxyalkyl, benzyl and hydrogen when y is not 0; R ⁴ is the same as R ³ or is an alkyl chain in which the total number of carbon atoms R ¹ plus R ⁴ is from about 8 to about 16, each y is from about 0 to about 10 and the sum of y values is from about 0 to about 15; and X is any compatible anion.

In addition to the optional "common" surfactants described above, the compositions may contain other optional ingredients suitable for use in liquid dishwashing detergents, such as perfumes, dyes, opacifiers, enzymes, fillers and chelating agents, and leveling agents. pH so that said compositions generally have a pH of from 5 to 11, preferably from 6, to 8.5, most preferably from 7 to 8.

Method of use

In view of the method of use according to the invention, an effective amount is applied to the soiled dishes, usually from about 0.5 ml to about 20 ml (per 25 pieces of dishwashed), preferably from about 3 ml to about 10 ml of the detergent composition of the present invention. Really

9 99

9

9 9 9 9 · 999 · 9 · · ·

The amount of liquid cleaning agent used will depend on the consumer's judgment and will generally depend on such factors as the detailed formulation of the product of the composition, including the concentration of active ingredients in the composition, the amount of soiled dishwashed and the like. The individual formulation of the product will in turn depend on a number of factors, such as the envisaged market (i.e., U.S., Europe, Japan, etc.) and the production of the compositions.

Generally, from about 0.01 ml to 150 ml, preferably from about 3 ml to about 40 ml of the liquid detergent composition of the invention is combined with from about 2,000 ml to about 20,000 ml, more usually from about 5,000 ml to about 15,000 ml of water in a washbasin having a volume capacity in the range of from about 1000 ml to about 20,000 ml, more usually from about 5,000 ml to about 15,000 ml. , fungi or the like. A cloth, sponge or similar article may first be immersed in a solution of water and detergent and subsequently used to wipe and clean the surface of the dishes, the time of use for cleaning the surface of the dishes being from about 1 to about 10 seconds, although the actual time will vary applications and consumers. The use of a cloth, sponge or the like in cleaning the surface of the dishes is preferably accompanied by conventional scrubbing of the dishes. Another method of use will include immersing soiled dishes in a water bath free of any liquid dishwashing detergent. The liquid dishwashing detergent composition, such as a sponge, is immersed directly into a separate amount of undiluted liquid dishwashing detergent for a period of usually from about 1 to about 5 seconds. Further, the absorbent article with undiluted liquid dishwashing detergent is individually applied to the surface of each soiled item to remove said impurities. The absorbent article is typically allowed to act on the individual surface of the soiled dishware for a time ranging from about 1 to about 10 seconds, although the actual application time will depend on factors such as the degree of soiling of the dishware. The action of the absorbent on the surface of the dishes is preferably accompanied by conventional scrubbing.

* ···· «· · M · · · 000 · 000 · 0 · 00 0 00 000000 000 0000 0 0

000 00 00 ·· 0 ·

EXAMPLES Example ¹ 1

The following compositions were prepared by mixing said ingredients in the specified proportions.

Component AND (B) C Alkyl ethoxy (x) coconut oil sulphate 25 (x = 1) 25 (x = 1) 25 (x = 1) Glucose amide 5 5 5 Amine oxide 5 5 5 Betainy C10E8 ethoxylated alcohol 1 5 5 Mg 0.5 0.5 0.5 Hydrotropic substance 10 kumen- sodium sulfonate 5 kumen- sodium sulfonate 5 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 7 7 7 Polypropylene glycol (Mw 2000) 2 2 2 Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 150 cps 150 cps 150 cps PH 7 7 8

Component D E F Alkyl ethoxy (x) coconut oil sulphate 16 (x = 1.0) 25 (x = 1.5) 25 (x = 1.5) Glucose amide 10.0 5 5 Amine oxide 2.5 2.5 Betainy 2 2.5 2.5 C10E8 ethoxylated alcohol 10 4 4 Mg 0.3 0.5 0.5 Hydrotropic substance 2,0 kumen- sodium sulfonate 5 kumen- sodium sulfonate 5 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 7 7 7 Polypropylene glycol (Mw 2000) 1.5 1.5 2,0 Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 300 cps 150 cps 150 cps pH 7 8 8

Component G H AND Alkyl ethoxy (x) coconut oil sulphate 25 (x = 1.5) 25 (x = 1.5) 25 (x = 1.5) Glucose amide 5 5 5 Amine oxide 5 2.5 2.5 Betainy 2.5 2.5 C10E8 ethoxylated alcohol 5 4 4 Mg 0.5 0.5 Hydrotropic substance 3.0 kumen- sodium sulfonate 5 kumen- sodium sulfonate 5 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 7 7 7 Polypropylene glycol (Mw 2000) 1.5 1.5 1.5 Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 150 cps 250 cps 250 cps PH 8 8 8

99 99

9 9 9 9 9 9 9 9 9

9 9 9 9 9 9 9 9 9 • 9 9 999999

9 9 9 9 9 9 ·

Component J TO L Alkyl ethoxy (x) coconut oil sulphate 25 (x = 2.0) 25 (x = 1.5) 30 (x = 0.5) Glucose amide 5 5 2 Amine oxide 5 2.5 2 Betainy 2.5 2 C10E8 ethoxylated alcohol 1 4 5 Mg 0.5 0.5 0.5 Hydrotropic substance 10 xylene- sodium sulfonate 5 xylene- sodium sulfonate 5 xylene- sodium sulfonate Solvent (EtOH + propylene glycol) 6 7 10 Polypropylene glycol (Mw 2000) 2 1.5 2.5 Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 150 cps 250 cps 200 cps pH 7 8 8

• 9 «99,999» 99,99

9 9 9 9 9 4 9 9 9

9 9 4 9 4

9 4 9 · 4 4 444 44 4

9 9 9 9 9 9 94 95 44 44

Component M N O Alkyl ethoxy (x) coconut oil sulphate 30 (x = 0.5) 22 (x = 2) 20 (x = 2) Glucose amide 6 7 Amine oxide 4 2 1.5 Betainy 2.5 2 1.5 C10E8 ethoxylated alcohol 3 7 4 Mg 1.0 0.5 0.6 Hydrotropic substance 5 xylene- sodium sulfonate 5 xylene- sodium sulfonate 5 xylene- sodium sulfonate Solvent (EtOH + propylene glycol) 5 5 5 Polypropylene glycol (Mw 2000) 2.5 2,0 1.5 Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 300 cps 300 cps 300 cps pH 9 7 7

9 « 9 • 9 • 9 99 9999 9 • 9 «9 9 9 9 • • 9 4 9 9 9 9 999 • 9 « 9 9 999 • 9 99 9 9 99 9 99

Component P Q R Alkyl ethoxy (x) coconut oil sulphate 30 (x = 1) 15 (x = 4) 35 (x = 1.5) Glucose amide 15 Dec Amine oxide 3 4 Betainy 0.5 C10E8 ethoxylated alcohol 1.0 7 Mg 0.8 1.0 Hydrotropic substance 2,0 xylene- sodium sulfonate 8 toluene- sodium sulfonate 8 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 5 7 7 Polypropylene glycol 3.0 (Mw1000) 2,0 (Mw 3000) 2.5 (Mw 5000) Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 300 cps 200 cps 150 cps PH 7 7 8

• · · ·

·· ·· · · · · · · · · · · · · · · · · · · · ·

Component WITH T AT Alkyl ethoxy (x) coconut oil sulphate 25 (x = 1.5) 25 (x = 1.5) 25 (x = 2.2) Glucose amide 5 5 5 Amine oxide 2.5 5 5 Betainy 2.5 C10E8 ethoxylated alcohol 4 5 1.0 Mg 0.5 0.5 1, o Hydrotropic substance 5 xylene- sodium sulfonate 5 xylene- sodium sulfonate 10 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 7 7 7 Polypropylene glycol 1.5 (Mw 4000) 1.5 (Mw 600) 3.0 (Mw 2000) Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 150 cps 150 cps 200 cps PH 8 8 7

· · · · · · · · · · · · · · · · · · · · · · · · · · · ·

Component IN W X Alkyl ethoxy (x) coconut oil sulphate 20 (x = 1) 25 (x = 1.5) 25 (x = 1.5) Glucose amide 5 5 5 Amine oxide 5 2.5 2.5 Betainy 2.5 2.5 C10E8 ethoxylated alcohol 4 4 4 Mg 0.5 0.5 0.5 Hydrotropic substance 1.5 kumen- sodium sulfonate 5 kumen- sodium sulfonate 5 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 5 7 7 Polymer 2.5 (Polypropylene- glycol Mw 2000) 1.5 (Polyethoxy- amine Mw 5000) 1.5 (Polyethylene- terephthalate Mw 4000) Water and blends (dyes, perfumes, quenching agents, etc. balance up to 100% balance up to 100% balance up to 100% Viscosity 300 cps 150 Cps 150 cps PH 8 8 8

• 9 · 4 4 4 4 4 4 4 4 9

9999 99 4 9944 • 4 4 4 · · 9994

4 44 44 44 4444444

995 4444 4 4

944 44 44 44 94

Component Y Alkyl ethoxy (x) coconut oil sulphate 25 (x = 1.5) Glucose amide 5 Amine oxide 2.5 Betainy 2.5 C10E8 ethoxylated alcohol 4 Mg 0.5 Hydrotropic substance 5 kumen- sodium sulfonate Solvent (EtOH + propylene glycol) 7 Polymer 1.5 (Polyethylene- terephthalate terminated sulfoalkyl) Water and blends (dyes, perfumes, balance quenching agents, etc. up to 100% Viscosity 150 cps PH 8

PATENT CLAIMS

Claims (9)

A liquid dishwashing composition comprising: 0 from 15% to 60% of an alkyl ethoxy sulphate surfactant; 0 from 0% to 30% amine oxide surfactant; 0 from 0% to 2% magnesium ions; 0 effective amount of solvent; 0 an effective amount of a hydrotropic; An effective amount of a polymeric gelling agent. 2. A composition according to claim 1 comprising: 0 from 15% to 60% of said alkyl ethoxy sulphate surfactant; 0 from 0% to 30% of said amine oxide surfactant; 0 from 0% to 2% of said magnesium ions; 0 from 3% to 20% of said solvent; 0 from 1.5% to 20% of said hydrotropic; From 0.5% to 6% of said polymeric gelling agent. Composition according to any one of the preceding claims, characterized in that it has a viscosity value of from 50 cps to 2000 cps. Composition according to any one of the preceding claims, characterized in that said polymeric gelling agent is selected from the group consisting of polyalkene glycols, polyamines and terephthate-based polymers. Composition according to any one of the preceding claims, characterized in that said polymeric gelling agent has a molecular weight of from 500 to 20 000. Composition according to any one of the preceding claims, characterized in that it comprises from 0.5% to 10% of said polymeric gelling agent. • · · · · Composition according to any one of the preceding claims, characterized in that said ¹ hydrotrope is selected from the group consisting of anionic type hydrotropes, preferably sodium cumene sulphonate, sodium xylene sulphonate, sodium toluene sulphonate and mixtures thereof. Composition according to any one of the preceding claims, characterized in that said solvent is selected from the group consisting of C 1 -C ₁₀ monohydric and divalent alcohols and mixtures thereof. A method of washing dishes according to which the dishes are immersed in a water bath, an effective amount of the composition of any one of claims 1 to 8 is absorbed into the auxiliary tool, and the absorbed instrument is individually contacted with the surface of each piece of soiled dish.