EP1032625A1

EP1032625A1 - Skin-friendly washing up detergents

Info

Publication number: EP1032625A1
Application number: EP98961114A
Authority: EP
Inventors: Udo Hees; Rolf Wachter
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 1997-11-10
Filing date: 1998-10-30
Publication date: 2000-09-06
Also published as: DE19749560A1; JP2001522930A; DE19749560C2; WO1999024535A1

Abstract

The invention relates to skin-friendly washing up detergents by hand, consisting of aqueous tenside preparations or concentrates. The detergents are obtained using at least one ceramide and/or ceramide derivative and/or pseudoceramide as the skin-care component, a tenside or tenside mixture and optionally, at least one non-tenside component and water. The pseudoceramides are selected from the following classes of compounds: a) esters of alkyl succinic acid with fatty alcohols, b) fatty acid-N-alkylpolyhydroxyalkyl amides, c) N-acylated mono- and/or bis-amino acid oligohydroxyalkyl amides, d) esters of fatty acids with hydroxyalkyl glucosides, e) esters of N-disubstituted dicarboxylic acid amides with alcohols, f) esters of N-disubstituted alkyl succinic acid with alcohols, g) disubstituted amides of hydroxycarboxylic acid esters or lactones, h) acylated sugar monoacid fatty alkyl amides, i) oligohydroxydicarboxylic acid derivatives and j) dicarboxylic acid ester derivatives with a diacyloxypropyl radical.

Description

"Skin-friendly hand dishwashing detergent P '

The invention relates to aqueous skin-friendly surfactant preparations or concentrates, in particular for manual dishwashing, made of ceramides, ceramide derivatives and / or pseudoceramides or mixtures of ceramides, ceramide derivatives or pseudoceramides and surfactants and the use thereof.

On manual dishwashing center! If consumers make special demands regarding both the performance of the detergent and the skin-friendliness, there is therefore a permanent need to further improve the dermatological compatibility of preserved detergent compositions. Two solution paths can be followed to increase the skin-friendliness of a detergent. On the one hand, detergent compositions can be used , which have a high spuimant performance and dermatological advantages, on the other hand you can also add certain skin-protecting substances to known surfactant compositions

Ceramides are known from the literature as lipophilic amide components of the myema layer (Rompp Chemie Lexikon Vol. 1, 9 edition 1989, p. 623). They also occur as components of the lipid membrane in the intercellular spaces of the stratum corneum. Due to this biological property, ceramides have also been used as components of cosmetic preparations. In this application they cause a demonstrable improvement in the surface area of the skin.

From the document "GlycoCERAMIDES" (SÖFW-Journal 1995, 121, 566-580) dermatologically active substances from the class of ceramides or their derivatives, e.g. glycosylceramides, are known as components of cosmetic products for topical treatment.

From the statements by imokawa et al. (J. Soc. Cosm. Chem. 1989, 40, 273-285) the positive cosmetic effects when using synthetic compounds which are structurally and functionally related to the ceramides (so-called pseudoceramides) can be seen. As components of cosmetic preparations, they protect against skin dehydration

The complex object of the present invention was then to provide hand dishwashing detergents which are distinguished by high washing performance, dirt dispersing agents and like and excel in foaming power, but at the same time have optimal skin friendliness and tolerance.

It was surprisingly found experimentally that additions of ceramides, ceramide derivatives and / or pseudoceramides to surfactant compositions a) with anionic surfactants and / or b) amphoteric surfactants or / and optionally c) with nonionic surfactants for manual dishwashing do not impair the high washing performance of the surfactant components and have gentle and gentle effects on the skin at the same time.

The present invention thus maintains the synergistic effects of the surfactant components during rinsing, while the added ceramides, ceramide derivatives and / or pseudoceramides develop positive dermatological properties.

The invention thus relates to a hand dishwashing detergent in the form of an aqueous surfactant preparation which contains at least one ceramide and / or ceramide derivative and / or pseudoceramide to protect the skin, a surfactant or a surfactant mixture and optionally at least one non-surfactant component and water, the pseudoceramides consisting of the compound classes a) esters of alkylsuccinic acid with fatty alcohols, b) fatty acid-N-alkylpolyhydroxyalkylamides, c) N-acylated mono- and / or bis-amino acid oyohydohydroxyalkylamides, d) esters of fatty acids with hydroxyalkylglucosides, e) esters of N-disubstituted dicarboxylic acid amides with alcohols , f) esters of N-disubstituted alkyl succinic acid amides with alcohols, g) disubstituted amides of hydroxycarboxylic acid esters or lactones, h) acylated sugar monoacid fatty alkylamides, i) oligohydroxydicarboxylic acid derivatives and j) dicarboxylic acid ester derivatives with a diacyloxypropyl radical.

The ceramides which can be used according to the invention are amide esters of a long-chain fatty acid and sphingosine. Sphingosine is an aminodiol (4-sphingenine) residue that carries a long-chain alkyl residue. Typical derivatives of the ceramides are the glycoceramides which carry sugar residues on the terminal OH group of the ceramide (eg glucoceramide as cerebroside, sulfatide or ganglioside). lfomonosacc arid complex carbohydrate

ramid ceramide

Ceramide Cerebroside Sulfatide GangliosiC

The pseudoceramides which can be used according to the invention are a structurally heterogeneous connecting group which nevertheless have certain similarities to the ceramides and have comparable functional properties as components of cosmetic preparations.

Preferred pseudoceramides according to the invention from the compound classes a) to j) are the compounds of the formulas (I) to (XIII) described below and known from the German patent applications indicated in each case.

DE 42 38 032 skin-conditioning succinic acid derivatives of the formula (I),

R ¹ O (C _n H _2n O) _x CO-CHR ² -CHR ³ -CO (OC _n H _2n ) _y OR ⁴ (D

in which R ^{1 is} an alkyl, alkenyl, mono- or dihydroxyalkyl or a hydroxyalkenyl group with 6 to 22 C atoms, one of the groups R ² and R ^{3 is} hydrogen and the other is an alkyl or alkenyl group with 12 to 22 C atoms, n is the number 2 or 3, x and y mean degrees of oxalkylation, namely x from 0 to 20 and y from 1 to 20 and R ^{4 is} hydrogen or a group R ¹ O- (C _n H _2n O) _x - CO-CHR ² -CHR ³ -CO- or has the same meaning as R ¹ ; obtainable by reacting alkyl succinic anhydrides with long-chain, optionally ethoxylated fatty alcohols.

DE 43 26 958 Use of fatty acid N-alkylglycosylamides of the formula (II),

R ² R ¹ CO-N- [Z] (II) in which R ¹ CO stands for an aliphatic acyl radical with 6 to 22 carbon atoms, R ² for an alkyl or hydroxyalkyl radical with 4 to 22 carbon atoms and [Z] for a glycosyl radical with 6 to 12 carbon atoms, as synthetic barrier lipids in skin care products ; obtainable by condensing fatty acid methyl esters with longer-chain glucosylamines.

DE 43 26 959 Use of fatty acid N-alkyl polyhydroxyalkylamides of the formula (IT),

R ² R ¹ CO-N- [Z] (II ')

in which R ¹ CO is preferred for an aliphatic acyro radical with 6 to 22 carbon atoms, R ² for an alkyl or hydroxyalkyl radical with 4 to 22 carbon atoms and [Z] for a linear or branched polyhydroxyalkyl radical with 3 to 12 carbon atoms and 3 to 10 hydroxyl groups a glycosyl residue with 5 or 6 carbon atoms, in particular a glucosyl residue, stands as synthetic barrier lipids in skin care products; Fatty acid N-alkylglucamides are available, for example, by condensing fatty acid esters with longer-chain alkylglucamides.

DE 43 41 451 N-acylated mono- and / or bis-amino acid oligohydroxyalkylamides of the formula (IV),

R ² R ³

I I

R ¹ CO-NH-CH-CON-R ⁴ (IV)

in the R ¹ CO for a linear or branched acyl radical having 6 to 30 carbon atoms, R ² for hydrogen or a radical [A] -R ⁵ , R ³ for hydrogen or an optionally hydroxyl-substituted alkyl radical with 1 to 30 carbon atoms, R ⁴ for one Oligohydroxyalkylrest with 4 to 12 carbon atoms and 3 to 10 hydroxyl groups or a glycosyl radical, A for a linear or branched, optionally hydroxyl-substituted alkylene group with 1 to 6 carbon atoms and R ⁵ for hydrogen, an optionally hydroxyl-substituted phenyl radical, an indolyl radical, a hydroxyl radical, one Thiol radical, a thioalkyl radical, an acyloxy radical, an amide radical, an amino group or an NH-COR ¹ radical; obtainable by reacting amino acids with acid chlorides, the resulting

N-acylated amino acids with chlorine compounds are converted into their acid chlorides and these are then condensed with secondary amines (example: N-tallow acylglycine-N-tallow alkyl giucosylamide).

DE 44 01 102 pseudoceramides, obtainable by using hydroxyalkyl glucosides of the formula (V),

R ¹ O- [G] _p (V)

in which R ^{1 stands} for a hydroxyalkyl radical with 2 to 18 carbon atoms, G for a sugar radical with 5 or 6 carbon atoms and p for numbers from 1 to 10, in the presence of acidic or basic catalysts with fatty acids or fatty acid esters, for example methyl esters, of the formula R. ² CO - OR ³ , in which R ² CO represents a linear or branched acyro radical with 6 to 22 carbon atoms and 0 and / or 1, 2 or 3 double bonds and R ^{3 represents} hydrogen or an alkyl radical with 1 to 4 carbon atoms, esterified or transesterified (e.g. 1, 10-decanedioiglucoside dilaurate).

DE 44 02 929 pseudoceramides of the formula (VI),

OOR ²

₁ II II ι ₃

R ¹ OC- [X] -CNR ³ (VI)

in which R ^{1 is} a branched alkyl and / or alkenyl radical having 12 to 50 carbon atoms, R ^{2 is} hydrogen or an optionally hydroxy-substituted alkyl radical having 1 to 30 carbon atoms, R ^{3 is} a hydroxyalkyl radical having 2 to 12 carbon atoms and 1 to 10 Hydroxyl groups or a glycosyl radical and X represents a linear or branched alkylene radical having 1 to 6 carbon atoms; obtainable by acylating branched primary alcohols with dicarboxylic acid anhydrides, converting the acylation products by means of chlorine compounds into the acid chlorides or mixed anhydrides and condensing them with hydroxyalkylamines or glucosylamines (e.g. hexadecylsuccinic acid guerbetalkylester-N-methylsorbitylamide). DE 44 03 258 pseudoceramides of the formula (VII),

OOR ²

II II I

R YC- [X] -CNR ³ (VII)

in which R ^{1 is} a linear alkyl and / or alkenyi radical having 6 to 30 carbon atoms, R ^{2 is} hydrogen or an optionally hydroxyl-substituted alkyl radical having 1 to 30 carbon atoms, R ^{3 is} an oligohydroxyalkyl radical having 4 to 12 carbon atoms and 3 to 10 hydroxyl groups or a glycosyl radical, X represents a linear or branched alkylene radical having 1 to 6 carbon atoms, Y represents oxygen, sulfur or an NR ⁴ radical and R ^{4 represents} hydrogen or an alkyl radical having 1 to 30 carbon atoms; obtainable by acylating long-chain fatty alcohols with dicarboxylic acid anhydrides, converting the acylation products by means of chlorine compounds into the acid chlorides or mixed anhydrides and condensing them with hydroxyalkylamines or glucosylamines (e.g. hexadecyl succinic acid behenyl ester-N-octadecylglucosylamide).

DE 44 04 175 pseudoceramides of the formula (VIII),

OOR ²

, II II I

R ¹ OC- [X] -CNR ³ (VIII)

in which R ^{1 is} a radical of a hydroxydicarboxylic acid diester having 3 to 10 carbon atoms in the dicarboxylic acid component and in each case 1 to 30 carbon atoms in the alcohol components, R ^{2 is} hydrogen or an optionally hydroxy-substituted alkyl radical having 1 to 30 carbon atoms, R ^{3 is} a hydroxyalkyl radical having 2 to 12 carbon atoms and 1 to 10 hydroxyl groups or a glycosyl radical and X stands for a linear or branched alkylene radical with 1 to 6 carbon atoms, preferably R ¹ for the rest of a diester of malic acid with fatty alcohols with 12 to 18 carbon atoms, R ² for hydrogen or one Methyl group, R ^{3 represents} a hydroxyalkyl radical having 6 carbon atoms and 5 hydroxyl groups or a glucosyl radical and X represents an ethylene group; obtainable by acylating hydroxydicarboxylic acid diesters (based on malic, citric, tartaric acid) with dicarboxylic acid anhydrides, converting the acylation products to the acid chlorides or mixed anhydrides using chlorine compounds, and combining these with hydroxyal- condensed kylamines or glucosylamines (example: succinic acid 1,2-bis-stearyl [oxycarbonylethyl] ester-N-methylsorbitylamide).

DE 44 07 016 pseudoceramides of the formulas (IXa / b),

OR ⁴ OR ² OR ⁴ OR ²

II I II I H I II I

R ¹ YC-CH ₂ CH-CNR ³ (IXa) R ¹ YC-CHCH ₂ -CNR ³ (IXb)

in which R ¹ for a linear or branched alkyl and / or alkenyl radical having 6 to 30 carbon atoms, Y for oxygen or an NR ⁵ group, R ² for hydrogen or an optionally hydroxy-substituted alkyl radical with 1 to 30 carbon atoms, R ³ for one Hydroxyikylrest with 2 to 12 carbon atoms and 1 to 10 hydroxyl groups or a glycosyl radical, R ⁴ for an alkyl and / or alkenyl radical with 6 to 30 carbon atoms and R ⁵ for hydrogen or an optionally hydroxy-substituted alkyl radical with 1 to 6 carbon atoms, preferably R ¹ for an alkyl and / or alkenyl radical with 12 to 18 carbon atoms, Y for oxygen, R ² for hydrogen or a methyl group, R ³ for a hydroxyalkyl radical with 6 carbon atoms and 5 hydroxyl groups or a glucosyl radical and R ⁴ for an alkyl and / or Alkenyl radical having 12 to 18 carbon atoms; obtainable by converting alkyl succinic acid monoesters or amides by means of chlorine compounds into the acid chlorides or mixed anhydrides and condensing them with hydroxyalkylamines or glucosylamines (eg: hexadecylsuccinic acid, monobhenyl ester-N-methylsorbitylamide).

DE 44 20 736 pseudoceramides of the formula (X),

R ¹ CO-NR ³ (X)

wherein R ¹ CO stands for a hydroxyacyl radical with 3 to 8 carbon atoms and 2 to 7 hydroxy groups and R ² and R ^{3 can be the} same or different and for hydrogen, a linear or branched alkyl group with 1 to 50 carbon atoms or a group of the formula -R ⁴ -COO-R ⁵ , in which R ^{4 represents} an alkylene group with 1 to 18 carbon atoms, which may contain a further ester group COO-R ⁶ with a linear or branched alkyl group R ⁶ with 1 to 50 carbon atoms, and R ⁵ a is linear or branched alkyl group with 6 to 50 carbon atoms, at least two of the groups R ² , R ³ , R ⁵ and R ^{6 being} long-chain radicals with 6 to 50 carbon atoms or at least one of the groups R ² , R ³ , R ⁵ and R ^{6 is} a branched alkyl group, the branches having at least 6 carbon atoms; obtainable by condensing hydroxycarboxylic acid esters or lactones with selected amines (example: ND-gluconoyl-L-aspartic acid ditallow alkyl ester).

DE 44 21 208 Cosmetic and / or pharmaceutical O / W emulsions obtainable by using an oil phase containing pseudoceramides of the alkyl succinic acid ester type of the formula (I ')

RO (CH ₂ CH ₂ O) _x CO-CHR ² -CHR ³ -CO (OCH ₂ CH ₂ ) _y OR ⁴ (I ')

in which R ^{1 represents} an alkyl and / or alkenyl radical having 6 to 22 carbon atoms, R ^{4 represents} hydrogen or R ¹ and R ² and R ³ independently of one another represent hydrogen or an alkyl and / or alkenyl radical with 6 to 22 carbons, with the proviso that at most one of these two radicals can be hydrogen, and the sum (x + y) stands for numbers from 1 to 20, emulsified with water above the phase inversion temperature.

DE 44 24 530 pseudoceramides of the formula (III),

R ²

in which R ¹ CO is a branched, saturated and / or unsaturated acyro radical having 8 to 50 carbon atoms, R ^{2 is} hydrogen or an optionally hydroxyl-substituted alkyl radical having 1 to 30 carbon atoms, R ^{3 is} a hydroxyalkyl radical having 2 to 12 carbon atoms and 1 to 10 Hydroxyl groups or a glycosyl radical, with the proviso that the sum of the carbon atoms of the radicals R ¹ and R ^{2 is} at least 16; obtainable by converting branched carboxylic acids by means of chlorine compounds into the acid chlorides or mixed anhydrides and condensing them with hydroxyalkylamines or glucosylamines (e.g. Guerbet acid-N-methylsorbitylamide). DE 44 24 533 oligohydroxydicarboxylic acid derivatives of the formula (XII),

OR ³ O

II I II

RX ¹ -C- (CH) _n -CX ² R ² (XII)

wherein R ¹ for a linear or branched alkyl and / or alkenyl radical with 3 to 30 carbon atoms, and R ² for a linear or branched alkyl and / or alkenyl radical with 1 to 30 carbon atoms, X ¹ and X ^{2 are the} same or different and represents oxygen or an NR ⁴ group, in which R ^{4 is} hydrogen or a linear or branched alkyl radical having 1 to 30 carbon atoms, R ^{3 is} hydrogen or a hydroxyl group and n is a number from 1 to 5, where R ³ in the case t ? = 1 is a hydroxy group; which are obtained by condensing oligohydroxydicarboxylic acids with long-chain alcohols or amines (e.g. dodecyl mucic acid).

DE 44 30 851 dicarboxylic acid ester derivatives with a diacyioxypropyl radical of the formulas (Xllla / b),

CH ₂ -O-CO-R ² O-CO-R ²

I I

R ¹ O-CO- [X] -CO-CH (Xllla) R ¹ O-CO- [X] -CO-O-CH ₂ -CH (Xlllb)

C ¹ H ₂ -O-CO-R 3 ³ C 'H ₂ -O-CO-R 3 ³

in which R ^{1 is} a poly- (C ₂ -C ₃ ) -alkylene oxide residue with 2 to 20 monomer units or an oligohydroxyalkyl residue with 2 to 8 carbon atoms and 1 to 6 hydroxy groups, R ² and R ^{3 are the} same or different and are a straight-chain or branched, saturated or unsaturated alkyl radical with 8 to 30 carbon atoms, X for a linear or branched alkylene radical with 1 to 6 carbon atoms, which can also be unsaturated and part of a ring system, oxygen, sulfur, the thionyl or sulfonyl group, and Y oxygen or one Represent group NR ⁴ , where R ^{4 represents} a hydrogen atom, an alkyl radical having 1 to 4 carbon atoms or a hydroxyalkyl group having 2 to 4 carbon atoms; obtainable by converting the reaction product of diglyceride and succinic anhydride into the acid chlorides or mixed anhydrides using chlorine compounds and these are condensed with hydroxyalkylamines or glucosylamines (example: succinic acid 1 (2), 3-distearoyl-2 (1) propyl ester-N-methyisorbitylamide).

DE 195 23479 Use of acylated sugar mono fatty acid alkylamides of the formula (XI),

R ¹

R ³ -CO-O-CH ₂ - (CHOH) _n -CO-N ¹ -R 2 ² (XI)

in which R ¹ and R ^{3 may be the} same or different and, independently of one another, one for a linear or branched alkyl and / or alkenyl radical having 6 to 30 carbon atoms or R ¹ for a radical with the formula -CH ₂ - (CHR ⁵ ) _m -CO-OR ⁴ , wherein R ^{4 is} a linear or branched alkyl and / or alkenyl radical having 6 to 30 carbon atoms, R ^{5 is} hydrogen or a linear or branched alkyl or alkenyl radical having 1 to 6 carbon atoms and m numbers from 1 to 10 ,

R ^{2 stands} for hydrogen or an alkyl group with 1 to 4 carbon atoms and n stands for a number from 1 to 5, in skin care products. The products are manufactured by aminolysis of sugar acid lactones.

For optimal success according to the invention, between 1 to 20% by weight, preferably 1 to 5% by weight, ceramides, ceramide derivatives and / or pseudoceramides, based on the entire formulation, are used.

A further class of compound which can be used is, according to the invention, the surfactants and in particular the anionic surfactants and / or nonionic surfactants and / or amphoteric surfactants and / or cationic surfactants, at least one anionic surfactant and at least one amphoteric surfactant preferably being present.

Anionic surfactants according to the present invention can be aliphatic sulfates such as fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates and aliphatic sulfonates such as alkane sulfonates, olefin sulfonates, ether sulfonates, n-alkyl ether sulfonates, ester sulfonates, and lingin sulfonates. Fatty acid cyanamides, sulfosuccinic acid esters, fatty acid isethionates, acylaminoalkane sulfonates (fatty acid taurides), fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates can also be used in the context of the present invention. Fatty alcohol ether sulfates are particularly preferred as anionic surfactants, which can be used alone or in combination with further ethoxylated fatty alcohol ether sulfates. A combination of several, for example two, and very particularly preferably a combination of three fatty alcohol ether sulfates with different degrees of ethoxylation is particularly preferred. The EO chain length is preferably between 1 and 40, particularly preferably between 2 and 10. The chain length of these fatty alcohol ether sulfates is preferably 12 (C ₁₂ ) and / or 14 (d) carbon atoms. However, a combination of fatty alcohol sulfates and ethoxylated fatty alcohol ether sulfates is also preferred as the anionic component of the surfactants.

Nonionic surfactants in the context of the present invention can be alkoxylates such as polyglycol ethers, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, end-capped polyglycol ethers, mixed ethers and hydroxy mixed ethers and fatty acid polyglycol esters. Ethylene oxide-propylene oxide block polymers and fatty acid alkanolamides and fatty acid polyglycol ethers can also be used. An important class of nonionic surfactants that can be used according to the invention are the Poiyoi surfactants and here in particular the glucose surfactants, such as alkyl polyglucoside and fatty acid glucamides. The alkyl polyglycosides are particularly preferred.

Alkyl polyglycosides are surfactants which can be obtained by the reaction of sugars and alcohols according to the relevant methods of preparative organic chemistry, with a mixture of monoalkylated, oligomeric or polymeric sugars depending on the type of preparation. Preferred alkyl polyglycosides can be alkyl polyglucosides, the alcohol being particularly preferably a long-chain fatty alcohol or a mixture of long-chain fatty alcohols and the degree of oligomerization (DP) of the sugars being between 1 and 10. In the context of the present invention, alkyl polyglycosides, preferably alkyl polyglucosides, having C8 to C12 alkyl radicals and a degree of polymerization of 1 to 5, in particular 1.4 to 2.5, are particularly preferred.

Fatty acid polyhydroxyiamides (glucamides) are acylated reaction products of the reductive amination of a sugar (glucose) with ammonia, whereby long-chain fatty acids, long-chain fatty acid esters or long-chain fatty acid chlorides are generally used as acylating agents. Secondary amides are formed when reducing with methylamine or ethylamine instead of with ammonia, as described, for example, in SÖFW-Journal 1993, 119, 794-808. Carbon chain lengths of C ₆ to C ₁₂ in the fatty acid residue are preferably used. The amphoteric surfactants which can be used according to the invention include the alkyl betaines, acetyl betaines, alkyl amido betaines, imidazolinium betaines and amino propionates, as well as the sulfobetaines and biosurfactants. The betaines are particularly preferred, the alkyl-, acetylbetaines and / or alkylamidobetaines being very particularly preferred.

Amounts of 1 to 30% by weight, preferably 10 to 25% by weight, of anionic surfactants and 1 to 20% by weight, preferably 1 to 5% by weight, of amphoteric surfactants and, if appropriate, have been found in the hand dishwashing detergents according to the invention from 0 to 15% by weight, preferably 0.1 to 12% by weight, of nonionic surfactants has proven to be advantageous.

In a preferred embodiment of the invention, fatty alcohol ether sulfates serve as anionic surfactants, betaines as amphoteric surfactants and alkyl polyglycosides as nonionic surfactants.

The agents according to the invention can also have further ingredients, which are summarized as non-surfactant components. These include, in particular, solubilizers, solvents, pH regulators, corrosion inhibitors, preservatives, thickeners as well as colorants and fragrances and other non-surfactant ingredients common in hand dishwashing detergents. These non-surfactant components are used in amounts of 0 to 30% by weight, preferably 0.1 to 25% by weight, in the hand dishwashing detergents.

As solubilizers, for example for dyes and perfume oils, for example alkanolamines, polyols such as ethylene glycol, propylene glycol-1, 2, glycerol and other mono- and polyhydric alcohols and alkylbenzenesulfonates with 1 to 3 carbon atoms in the alkyl radical can be used.

Accordingly, hand dishwashing detergents according to the invention contain in a preferred embodiment of the invention

A) 1 to 20% by weight, preferably 1 to 5% by weight, ceramides, ceramide derivatives and / or pseudoceramides,

B) 1 to 30% by weight, preferably 10 to 25% by weight, of anionic surfactants,

C) 1 to 20% by weight, preferably 1 to 5% by weight, of amphoteric surfactants,

D) 0 to 30% by weight, preferably 0.1 to 25% by weight, non-surfactant components,

E) nonionic surfactants 0 to 15 wt .-%, preferably 0.1 to 12 wt .-% and F) water.

The following preferred ranges of apply to the individual non-surfactant ingredients listed above

D1) 0 to 15% by weight, preferably 1 to 10% by weight, of solvents such as monofunctional lower alcohols with up to 8 carbon atoms, preferably ethanol,

D2) 0 to 3% by weight, preferably 0.1 to 1% by weight, pH adjusting agents such as organic acid components, preferably citric acid,

D3) 0 to 5% by weight, preferably 0.1 to 2% by weight, fragrances,

D4) 0 to 7% by weight, preferably 0.5 to 3% by weight, NaCl, and

D5) 0 to 10% by weight of other customary ingredients.

Another object of the invention relates to the use of one or more ceramides and / or ceramide derivatives and / or pseudoceramides from the compound classes a) esters of alkylsuccinic acid with fatty alcohols, b) fatty acid N-alkylpolyhydroxyalkylamides, c) N-acylated mono- and / or bisamino acid oligohydroxyalkylamides , d) esters of fatty acids with hydroxyalkyl glucosides, e) esters of N-disubstituted dicarboxylic acid amides with alcohols, f) esters of N-disubstituted alkyl succinic acid amides with alcohols, g) disubstituted amides of hydroxycarboxylic acid esters or lactones, h) acylated sugar mono-carboxylic acid fatty acid hydroxides, ) Dicarboxylic acid ester derivatives with a diacyloxypropyl radical, in particular alkylsuccinic alkyl half-ester, as component (s) of skin-friendly

Detergents for hard surfaces, especially for dishes.

Examples

The compositions according to the invention are illustrated by the following examples.

Ingredient Recipe 1 Recipe 2 Recipe 3 Recipe 4

C12-14 alkyl ether sulfate (2 EO), 10 10 10 10

Na salt

C12-14 alkyl sulfate, Na salt 6 6

C12-14 alkyl ether sulfate (3.6 EO), - - 10 10

Na salt

Lauric acid monoethanolamide - - 1, 5 1, 5

C12-16-Alkyipolygiucosid 2 2 - -

(DP = 1, 4)

Dimethyl- (C8-18-acylamido-1, 5 1, 5 1, 5 1, 5 propy!) - ammonium acetobetaine

Pseudoceramide (e.g. formula (I), 1 2 1 2 e.g. hexadecyl succinic acid behenyl half ester)

NaCI 1, 3 1, 3 1 1

Ethanol 5 5 5 5

Water ad 100 ad 100 ad 100 ad 100 pH 6.8 6.8 6.8 6.8

The skin protection of the pseudoceramides was first checked by experts in the field of hand dishwashing detergent formulation using sensory methods.

For sensory testing of the feeling on the skin (skin softness, skin moisture), hands and forearms are first prewashed with a neutral product (e.g. an alkyl ether sulfate, 1% solution in water) and rinsed with water. After pre-washing, it is dried thoroughly. The forearm to be washed first and the hand that washes first are moistened again. Then you put about 0.5 g of one of the above recipes on your forearm with a dispenser and spread it with your palm and palm for 20 seconds. After the time has elapsed, rinse the arm and hand without any mechanics with 38 ° C warm water, carefully pat dry and repeat the washing process Approx. 0.5 g of a corresponding formulation without ceramide, ceramide derivative or pseudoceramide on the second forearm, dab dry again and then you have to let it dry for at least 5 minutes. Then you check whether there are any differences. On the arm, this is done by sliding slowly over the arm with your fingertips or with your fingers (inside or outside surface). With a very rough arm, you can also differentiate by ear. If the skin is dull, the skin on the wrist pushes away beneath the ball of the hand when sliding over it. Differences can be felt on the ball of the hand or in the palm of the hand with the fingertips. Skin softness and skin moisture are rated on a scale from 1 to 7.

10 test subjects (5 male, 5 female, ages 20 to 40 years) were familiarized with the method according to the invention and trained to assess the sensory parameters. When selecting the test subjects, care was taken to ensure that there were no skin defects and only slight hair on the arms and hands, no calluses on the fingers and no disorders of the nervous system or blood circulation.

The tests were carried out 1 hour after a thorough cleaning of the forearms and hands with a neutral cleaning agent (C12-14-alkyl ether sulfate (2 EO), sodium salt, 1% by weight aqueous solution).

The formulations were examined with and without pseudoceramides (active substance was exchanged for water). A positive effect of skin protection and skin mildness in the presence of pseudoceramide was confirmed by the test panel.

Other ceramides, ceramide dehvates and pseudoceramides also had a beneficial effect on the skin when used in hand dishwashing detergent formulations.

Ceramides, ceramide derivatives and pseudoceramides also showed in other surfactant hand dishwashing detergent compositions a favorable influence of the compositions according to the invention on the skin protection of the hand dishwashing detergents.

Claims

claims

1. Hand dishwashing detergent in the form of an aqueous surfactant preparation containing at least one ceramide and / or ceramide derivative and / or pseudoceramide to protect the skin, a surfactant or a surfactant mixture and optionally at least one non-surfactant

5 component and water, the pseudoceramides from the compound classes a) esters of alkyl succinic acid with fatty alcohols, b) fatty acid-N-alkyipolyhydroxyalkylamides, c) N-acylated mono- and / or bis-amino acid oigohydroxyalkylamides, d) esters of fatty acids with hydroxyalkylglucosides,

10 e) esters of N-disubstituted dicarboxylic acid amides with alcohols, f) esters of N-disubstituted alkyl succinic acid amides with alcohols, g) disubstituted amides of hydroxycarboxylic acid esters or lactones, h) acylated sugar monoacid fatty alkylamides, i) oligohydroxydicesteryl dicarboxylic acid derivatives and a) .

2. Composition according to claim 1, characterized in that the surfactant or the surfactant mixture is selected from the group of anionic surfactants and / or nonionic

20 surfactants and / or amphoteric surfactants and / or cationic surfactants, preferably containing at least one anionic surfactant and at least one amphoteric surfactant.

3. Means according to claim 1 or 2, characterized in that it

25 A) 1 to 20% by weight, preferably 1 to 5% by weight, ceramides, ceramide derivatives and / or pseudoceramides,

B) 1 to 30% by weight, preferably 10 to 25% by weight, of anionic surfactants,

C) 1 to 20% by weight, preferably 1 to 5% by weight, of amphoteric surfactants,

D) 0 to 30% by weight, preferably 0.1 to 25% by weight, non-surfactant components, 30.E) nonionic surfactants 0 to 15% by weight, preferably 0.1 to 12% by weight % and

F) contains water.

4. Agent according to one of the preceding claims, characterized in that it contains fatty alcohol ether sulfates as anionic surfactants, betaines as amphoteric surfactants and alkyl polyglycosides as nonionic surfactants.

5. Agent according to one of the preceding claims, characterized in that it is a combination of anionic surfactants, preferably a plurality of fatty alcohol ether sulfates (EO chain length: 1-40, preferably 2-10), preferably of fatty alcohol ether sulfates with 12 (C ₁₂ ) as anionic surfactants and / or with 14 (d) carbon atoms.

6. Agent according to one of the preceding claims, characterized in that it contains alkyl polyglycosides, preferably alkyl polyglucosides, with C8 to C12 alkyl radicals and a degree of polymerisation of 1 to 5, preferably 1, 4 to 2.5.

7. Composition according to one of the preceding claims, characterized in that it contains alkyl and / or acetyl betaines.

8. Agent according to one of the preceding claims, characterized in that it as a non-surfactant components

D1) 0 to 15% by weight, preferably 1 to 10% by weight, monofunctional lower alcohols having up to 8 carbon atoms, preferably ethanol,

D2) 0 to 3% by weight, preferably 0.1 to 1% by weight, organic acid components, preferably citric acid,

D3) 0 to 5% by weight, preferably 0.1 to 2% by weight, fragrances,

D4) 0 to 7 wt .-%, preferably 0.5 to 3 wt .-%, NaCl, and D5) 0 to 10 wt .-% contains other conventional ingredients.

9. Use of one or more ceramides and / or ceramide derivatives and / or pseudoceramides from the compound classes a) esters of alkyl succinic acid with fatty alcohols, b) fatty acid N-alkylpolyhydroxyalkylamides, c) N-acylated mono- and / or bisamino acid oligohydroxyalkylamides, d) Esters of fatty acids with hydroxyalkyl glucosides, e) esters of N-disubstituted dicarboxylic acid amides with alcohols, f) esters of N-disubstituted alkyl succinic acid amides with alcohols, g) disubstituted amides of hydroxycarboxylic acid esters or lactones, h) acylated sugar monoacid fatty alkylamides, i) oligohydroxydicarboxylic acid derivatives and j) dicarboxylic acid ester derivatives with a diacyloxypropyl radical, in particular alkylsuccinic acid alkyl half-ester, as component (s) of skin-protecting

Detergents for hard surfaces, especially for dishes.