WO2001060332A1

WO2001060332A1 - Cleaning foam containing sulfosuccinic acid monoesters and amphoteric surfactants or betaine surfactants dispensed from dispensing containers without a propellant gas

Info

Publication number: WO2001060332A1
Application number: PCT/EP2001/001348
Authority: WO
Inventors: Heike Schelges; Wolfhard Scholz
Original assignee: Henkel Kommanditgesellschaft Auf Aktien
Priority date: 2000-02-17
Filing date: 2001-02-08
Publication date: 2001-08-23
Also published as: DE10007321A1; AU2001231713A1

Abstract

The invention relates to a cleaning foam product comprised of an aqueous cleaning agent and of a dispensing container, which does not contain a propellant gas and which is provided with a foam valve. The aqueous cleaning agent contains 5-20 wt. % of a surface-active sulfosuccinic acid monoester salt, 1-10 wt. % of a surface-active amphoteric surfactant or betaine surfactant, and 60-90 wt. % of water. Said cleaning agent is suited for producing a particularly fine-bubble and creamy cleaning foam which exhibits a good skin compatibility. In addition, the inventive cleaning foam preferably contains 1-10 wt. % non-ionic surfactants and 0.1-1 wt. % of a fatty acid monoglyceride of a fatty acid having 12-18 C atoms.

Description

CLEANING FOAM CONTAINING SU FOBERSTONIC ACID MONOESTER AND AMPHO OR BETAINTENSIDE FROM GAS-FREE DONATION TANKS

The invention relates to a foam cleaning product for personal care, consisting of an aqueous cleaning agent and a propellant-free foam dispensing container, which is characterized by particular skin friendliness and a particularly creamy consistency of the foam.

For cleaning the skin and hair, preference is given to using those surfactants and combinations of surfactants which form a certain viscosity up to a gel structure in aqueous solution, so that the cleaning solution can be distributed on the skin during application and does not run between the fingers , or from hair or skin.

For the same reason, strongly foaming surfactants are preferred for body cleansing, since the foam formed during application also adheres longer to the skin or hair.

Unfortunately, some particularly skin-friendly anionic surfactants in aqueous solution are very low-viscosity and with the usual methods, e.g. B. by adding electrolyte, hardly thicken. This also applies to some particularly skin-friendly surfactant combinations that are difficult to thicken by adding electrolytes or conventional ner thickeners.

A particularly interesting class of skin-friendly anionic surfactants is that of sulfosuccinates. These surfactants are rarely used for liquid personal cleansing agents because they are difficult to thicken in dilute aqueous solution. Combination with betaine surfactants achieves somewhat higher viscosities, but this no longer applies when using the particularly low-irritation C ₈ -Cιo-acylamidobetaines. It has now been found that sulfosuccinate surfactants and their combination with surface-active ampho- or betaine surfactants are outstandingly suitable for the production of foam cleaning products which are used as cleaning foam from propellant-free dispensing containers with a foam valve (so-called airfoamers). The foam produced from such foam dispensers when applied even with water-thin preparations is particularly fine-bubble and creamy and is therefore ideal for distribution on the skin and for gentle, low-irritation cleaning. Sulfosuccinates are used as surfactants for skin cleansers e.g. B. from WO 84/03622 AI known. Cleaning foams based on a mixture of anionic and amphoteric surfactants are known from WO 99/39689 A2. WO 93/00089 AI also describes body cleansing foams which are used from propellant-free dispensing containers with a foam valve.

Compared to the products mentioned, the task was to improve the fine bubbles and creaminess of the foam and to further reduce the potential for irritation. The invention therefore relates to a foam cleaning product for personal hygiene, consisting of an aqueous cleaning agent and a propellant-free dispensing container with a foam valve, the cleaning agent at least

5-20% by weight of a surfactant sulfosuccinic acid monoester salt

1-10% by weight of a surface-active ampho- or betaine surfactant and

Contains 60-90 wt .-% water.

Suitable dispensing containers with foam nozzles are known, e.g. B. from US 3,709,437; US 3,937,364; US 5,635,469 or WO 94/09345 AI. In these devices, the cleaning liquid is conveyed to the foam valve either by pressure on the flexible container wall (squeeze bottle) or by a manually operated pump. The liquid is then mixed with air in the foam valve and discharged as foam.

The surface-active sulfosuccinic acid monoester salts are the salts of sulfosuccinic acid monoesters of fatty alcohols or fatty alcohol polyglycol ethers of the general formula

R'-O (CH ₂ CH ₂ O) _n -CO-CH ₂ -CH (SOs ^ -COO ^ M ^ in which R ^{1 is} an alkyl group with 12-18 C atoms, n has an average value of 0-6 and M is an alkaline application, preferably sodium. Particularly preferred sulfosuccinic acid monoester salts correspond to the formula

R -O (CH ₂ CH ₂ O) ₂ -CO-CH ₂ -CH (SO ₃ Na) -COO Na

in which R is an alkyl group with 12-16 C atoms and n has an average value of 1-6. Products with n = 3 are available under the trade name Texapon SB 3 (Cologne Germany).

Ampholytic surfactants are surface-active compounds which, in addition to a C ₈ -alkyl or acyl group, contain at least one free amino group and at least one -COOH or -SO ₃ H group in the molecule and are capable of forming internal salts. Examples of suitable ampholytic surfactants are N-alkylglycines, N-alkylaminopropionic acids, N-alkylaminobutyric acids,

N-alkyliminodipropionic acids, H-hydroxyethyl-N-alkylamidopropylglycine, N-

Alkyl taurine, N-alkyl sarcosine and alkyl amino acetic acids each with about 8-18 C atoms in the alkyl group. Particularly preferred ampholytic surfactants are the N-cocoalkylaminopropionate and the cocoacylaminoethylaminopropionate.

Zwitterionic surfactants are those surface-active compounds that have at least one quaternary ammonium group and at least one -COO - or -SO ₃ ^(_) group in the molecule. Particularly suitable zwitterionic surfactants are the so-called betaines such as the N-alkyl-N, N-dimethylammonium glycinate, for example coconut alkyldimethylammonium glycinate, N-acylaminopropyl-N, N-dimethylammonium glycinate, for example coconut acylaminopropyl dimethylammonium glycinate, and 2-alkyl-3 -carboxymethyl-3-hydroxyethyl-imidazolines each having 8 to 18 carbon atoms in the alkyl or acyl group and the cocoacylaminoethylethyloxycarboxymethylglycinate. A preferred zwitterionic surfactant is the fatty acid amide derivative known under the CTFA name Cocamidopropyl Betaine. Particularly suitable for the purposes of the present invention are those ampho- and betaine surfactants which have an alkyl or acyl group with 8-10 C atoms, in particular the betaine surfactant of the formula (II)

R ² CONH (CH ₂ ) _m -N ⁽⁺⁾ (CH ₃ ) ₂ -COO (-)

in which R .2 C, O is a group derived from caprylic and capric acid and m = 3. Such a surfactant is commercially available as a skin and mucous membrane-friendly and low-irritation beta surfactant with the name Tego Betain 810 (Goldschmidt).

In addition to the mandatory surfactant components mentioned, the foam cleaning agents according to the invention can also contain nonionic surfactants.

Suitable nonionic surfactants are, for example, the alkyl (oligo) glucosides, which are obtainable by reacting alcohols with 8-16 carbon atoms with, for example, butylglucoside by transacetalization or by direct acetalization from glucose and fatty alcohol and of the formula RO- (Z) _x correspond in which R is a C ₈ -C ₆ alkyl group and Z is a monosaccharide residue, in particular a glucose residue, and x is its average degree of oligomerization, a number from 1-5, preferably from 1-2. Other suitable nonionic surfactants are, for example

- Adducts of 2-30 mol ethylene oxide and / or 1-5 mol propylene oxide with linear fatty alcohols with 8-18 C atoms, with fatty acids with 12-18 C atoms, with fatty acid monoglycerides from C | ₂ -C ₈ fatty acids, on sorbitan monofatty acid esters of fatty acids with 12-18 C atoms, on fatty acid alkanolamides, on methylglucoside fatty acid esters, on hardened castor oil and on other lipids with mobile hydrogen atoms.

- Amine oxide surfactants, for example alkylamine oxides with 12-18 C atoms and acylamido propyl dimethylamine oxide with 12-18 C atoms in the acyl group. Even non-water-soluble surfactants, but which are solubilized in the presence of water-soluble surfactants and then contribute to improving the feeling on the skin and to the fine bubbles and creaminess of the foam, can be present in the hair cleansing agents according to the invention in amounts of up to 5% by weight. Such products are, for example

- Fatty acid monoethanolamides, fatty acid diethanolamides and fatty acid monoisopropa- nolamides of Cι -Cι ₈ fatty acids.

Fatty acid partial glycerides (monoglycerides and mono- / diglyceride mixtures) and sorbitan mono- and difatty acid esters

In a preferred embodiment, the foam cleaning product according to the invention contains a cleaning agent which additionally

1 to 10% by weight of nonionic surfactants and

0.1-1% by weight of a fatty acid monoglycerial of a fatty acid with 12-18

Contains carbon atoms.

A product which is commercially available under the name Lamesoft PO 65 (Cognis Germany) and which contains a combination of an alkyl (oligo) glucoside and a glycerol monooleate with more than 95% monoester content is particularly suitable as a moisturizing and moisturizing component.

In addition to the surfactant components mentioned, the skin cleanser according to the invention can contain up to 10% by weight of further anionic surfactants. Particularly preferred are foam-rich and skin-friendly surfactants. Suitable anionic surfactants such. B. alkyl sulfates in the form of their alkanolammonium salts, alkyl ether sulfates, alkyl ether carboxylates, alkane sulfonates, alpha olefin sulfonates, acyl isethionates, acyl taurides, acyl sarcosides, acyl monoglyceride sulfates, each with a preferably linear alkyl or acyl group having 12-18 C atoms and in the form of their , Magnesium, ammonium or alkanolammonium salts are used. For the purposes of the present invention, it is advantageous that the detergent composition is low viscosity and can be easily transported to the foam valve by the pump mechanism of the dispensing container. The viscosity of the cleaning agent is therefore preferably in a range below 500 m • Pa s (20 ° C.), preferably below 200 m ^• Pa s (20 ° C.), measured with a Brookfield rotary viscometer (type RTV, spindle 2 at 20 rpm).

The viscosity can be reduced by a content of glycols or polyols. These products also have a skin-moisturizing and sensory beneficial effect. In a preferred embodiment, the liquid cleaning agent therefore contains 0.5 to 5% by weight of a water-soluble glycol or polyol with 2-6 C atoms, or a polyalkylene glycol. Suitable glycols are e.g. B. ethylene glycol, 1, 2-propylene glycol, pentandol-1,4 or hexanediol-1,6. Suitable polyols are e.g. B. glycerin, erythritol, sorbitol. Suitable water-soluble polyalkylene glycols are e.g. B. the polyethylene glycols with molecular weights up to about 800 and the water-soluble ethylene oxide / propylene oxide copolymers with a proportion of more than 50% by weight of ethylene glycol ether groups.

In a particularly preferred embodiment, the foam cleaning product according to the invention contains an aqueous cleaning agent which contains 8-12% by weight of a sulfosuccinate of the formula:

R'θ- (CH ₂ CH ₂ O) _n -CO-CH ₂ -CH (SO ₃ Na) -COONa, in which R ^{1 is} an alkyl group with 12-18 C atoms and n is one

Averages 1-6, 1-5% by weight of a betaine surfactant of the formula

R ₂ -CO NH- (CH ₂ ) _m -N ⁽⁺⁾ (CH ₃ ) ₂ -COO ^(") , in which R CO is an acyl group with 8-10 C atoms and m = 2 or 3

1-5% by weight of an alkyl (oligo) glucoside of the formula

R ³ -O (C ₆ H ₁₂ O ₅ ) _n -H in which R is an alkyl group with 8-16 C atoms and n is one

Has mean of 1-2, 0.2% by weight of a Gl / cerinmonofatty acid ester and

Contains 1-5 wt .-% of a polyol from the group 1,2-propylene glycol, glycerol, sorbitol or an mixture thereof.

Lipid components, e.g. cosmetic oil components, fats, waxes and lipid-soluble vitamins (tocophenols, retinol palmitate) can be contained in emulsified microemulsified or solubilized form in amounts of 0.01-3% by weight.

In addition, the foam cleaning products according to the invention can contain other cosmetically and sensorially active or stabilizing additives, e.g. As skin moisturizers such as pyrrolidone carboxylic acid, lactic acid, sodium lactate, citric acid, sodium citrate, urea, allantoin, ascorbic acid, water-soluble protein derivatives and protein hydrolysates, plant extracts, panthenol, preservatives such as. B. sorbic acid, Na benzoate, p-hydroxybenzoic acid ester, phenoxyethanol, complexing agents, electrolyte salts, dyes and fragrances in smaller amounts of up to 5 wt .-% total.

The foam cleaning products of the invention produce a cleaning foam that is not only excellent for skin cleaning, e.g. B. is suitable for removing the face or for cleaning the hands or sensitive areas of skin, but leaves the skin in a refreshed and well-groomed state. The following examples are intended to explain the subject of the invention in more detail:

Examples:

130 g of the cleaning agents were poured into a 150 ml non-aerosol foam dispenser of the Airfoamer F2 type (manufacturer: Airspray International B.V.).

Claims

claims

1. foam cleaning product for personal care, consisting of an aqueous cleaning agent and a propellant-free dispenser with foam valve, characterized in that the cleaning agent at least

5-20% by weight of a surface-active sulfosuccinic acid monoester salt 1-10% by weight of a surface-active ampho- or betaine surfactant and

Contains 60-90 wt .-% water.

2. foam cleaning products according to claim 1, characterized in that the cleaning agent in addition

1 to 10% by weight of nonionic surfactants and

Contains 0.1-1 wt .-% of a fatty acid monoglyceride of a fatty acid with 12 to 18 carbon atoms.

3. Foam cleaning product according to one of claims 1 or 2, characterized in that the cleaning agent contains up to 10% by weight of further anionic surfactants.

Foam cleaning product according to one of Claims 1-3, characterized in that the cleaning agent contains 0.5 to 5% by weight of a water-soluble glycol or polyol with 2-6 C atoms or a polyalkylene glycol.

5. foam cleaning product according to any one of claims 1-4, characterized in that the aqueous cleaning agent 8-12 wt .-% of a sulfosuccinate of the formula

Averages 1-6, 1-5% by weight of a betaine surfactant of the formula

R ₂ -CO NH- (CH ₂ ) _m -N ⁽⁺⁾ (CH ₃ ) ₂ -COO ^H , in which R ² CO is an acyl group with 8-10 C atoms and m = 2 or 3

1-5% by weight of an alkyl (oligo) glucoside of the formula

R ³ -O (C ₆ H ₁₂ O ₅ ) _n -H in which R ^{3 is} an alkyl group with 8-16 C atoms and n is one

Has an average of 1-2, contains 0.2-2% by weight of a glycerol monofatty acid ester and 1-5% by weight of a polyol from the group 1,2-propylene glycol, glycerol, sorbitol or a mixture thereof.