WO1994017783A2

WO1994017783A2 - Cleansing composition

Info

Publication number: WO1994017783A2
Application number: PCT/EP1994/000278
Authority: WO
Inventors: Paul Anthony Bowser
Original assignee: Unilever Plc; Unilever N.V.
Priority date: 1993-02-03
Filing date: 1994-01-29
Publication date: 1994-08-18
Also published as: AU6000794A; GB9302130D0; WO1994017783A3

Abstract

The invention provides a cleansing composition, which comprises in addition to water, (a) from 10 to 30 % by weight of one or more C6 to C16 acyl glycolates and (b) from 5 to 25 % by weight of one or more co-surfactants, such as acyl taurates, isethionates, sarcosinates and sulphosuccinates. The cleansing compositions are primarily intended to be used as personal washing products, such as facial wash foams, bath foams and hair shampoos.

Description

CLEANSING COMPOSITION

FIELD OF THE INVENTION

The invention relates to cleansing compositions. In particular, the invention is concerned with very mild and high foaming cleansing compositions suitable for cleansing the skin and hair.

BACKGROUND TO THE INVENTION AND PRIOR ART

The most widely used anionic surfactants in cleansing compositions are alkyl sulphates, polyoxyethylene alkyl sulphates and alkyl benzene sulphonates. These compounds are known to have a good foaming and deterging power. Due to their harshness, however, they are not desirable as components for cleansing compositions topically applied to human skin and hair. Their damaging effect particularly where young, tender or damaged skin is involved, has been the subject of intense study for many years.

On the other hand milder surfactants often suffer from the draw-back that they do not provide high foam which is very important for the consumer. Therefore, there is a strong need for products which are not only very mild but also possess an excellent foaming power.

US-A-3,728,447 (C J Patterson) discloses hair shampoo compositions containing fatty acid lactylates or glycolates. While the cleaning action of shampoos based on the fatty acid glycolates is satisfactory, the foam is minimal. In order to achieve higher foaming action it is described to include harsh detergents such as sodium lauryl sulphate or triethanolamine lauryl sulphate. When the glycolates are used in conjunction with such a booster, detergent the quantity of the glycolates present in the composition is reduced down to about 1 to 2% by weight.

Applicants in their search for mild cleansing compositions, in particular for cleansing human skin or hair, with the added attribute that full lather is produced, have unexpectedly discovered that a narrow range of acyl glycolates in combination with specific co- surfactants provide the desired effects when used in particular amounts. The compositions so obtained are capable of producing a superior lather and accordingly have great consumer appeal. Also, the compositions are so mild that they can safely be used for cleansing the skin and the hair and other more delicate skin areas.

DEFINITION OF THE INVENTION

Accordingly, the invention provides a cleansing composition which comprises, in addition to water,

(a) from 10 to 35% by weight of one or more acyl glycolate(s) of the following structure (1)

where R^]CO represents a C₆ to C₁₆ acyl radical; a is an integer from 1 to 3; M¹ represents hydrogen or a counterion chosen from alkali metal, ammonium or a substituted ammonium group having one or more Cj to C₃ alkyl or hydroxy alkyl group(s) ; and

(b) from 5 to 25% by weight of one or more co- surfactant(s) chosen from the following compounds (A) to (0):

(A) N-methyl-N-acyl taurates of the following structure (2) CH₃

I R²C0 N — CH,CH, — S0₃M² (2)

where R²CO represents a C₁₀ to C₁₈ acyl group; and M² is as M¹ in structure (1) ;

(B) Acylisethionates of the following structure (3)

R³C0 OCH₂CH₂ S0₃M³ (3)

where R³C0 represents a C₁₀ to C₁₈ acyl group; and M³ is as M¹ in structure (1) ;

(C) Alkylesters of ω-sulphonated carboxylic acids of the following structure (4)

R⁴ O C (CH₂)_b SO₃M⁴ (4)

where R⁴ represents a C₁₀ to Cι₈ alkyl group; M⁴ is as M¹ in structure (1) ; and (b) is an integer from 1 to 3;

(D) Fatty acylamido polyoxyethylene sulphates of the following structure (5)

R⁵C0 NH (CH,CH₂0)_c S0₃M⁵ (5) where R⁵CO represents a C₁₀ to C₁₈ acyl group; M⁵ is as M¹ in structure (1) ; and c is an integer from 1 to 10;

(E) Fatty acid poly lvceride sulphates of the following structure (6)

R⁶CO O (CH₂ - CHOH - CH₂0)_d S0₃M° (6)

where R⁶CO represents a C₁₀ to C₁₈ acyl group; M⁶ is as M¹ in structure (1); and d is an integer from 1 to 4;

(F) Mono substituted sulphosuccinates of the following structures (7a) or (7b)

S0₃X⁷

I Z⁷C0 CH CH, CO,Y⁷ (fc)

S0₃X⁷

I Z⁷C0 CH, CH C0₂Y⁷ ty

where Z⁷ is chosen from the following groups (i) to (iϋ):

(i) R^aC0 - NH - (CH,CH,0)_e -, where R^aCO represents a C₁₀ to C₁₈ acyl group; and e is an integer from 1 to 10;

(ii) R^b - O - (CH,CH₂0)_f -, where R^b represents a C₁₀ to C₁₈ alkyl group; and f is an integer from l to 10;

(iii) R^c - O -, where R^c represents a C₁₀ to C,₈ alkyl group; and

X⁷ and Y⁷ are independently from each other chosen from the counterions represented by M¹ in structure (1) ;

(G) Mono substituted phosphates of the following structure (8)

R⁸ (OCH,CH₂)_g 0 P OM⁸³ (8)

I OM^8b

where R⁸ represents a C₁₀ to C_]8 alkyl group; M⁸³ and M⁸⁵ are independently from each other chosen from the group of species represented by M¹ in structure (1) ; and g is an integer from 0 to 3;

(H) Alkyl polvfethylene αlycol) acetates of the following structure (9)

(CH,CH,0)_h CH, OM^v (9)

where R⁹ represents a C₁₀ to C₁₈ alkyl group; M⁹ is as M¹ in structure (1) ; and h is an integer from 1 to 10;

(I) Salts of N-acyl -amino acids of the following structure (10)

Z¹⁰ Y¹⁰ O

! I II

R¹⁰CO — N CH C OM¹⁰ (10)

where R¹⁰CO represents a C₁₀ to C₁₈ acyl group; Z¹⁰ represents H or C, to C, alkyl; Y¹⁰ represents H, C, to C₃ alkyl or Cj to C₃ alkyl substituted with a COOH group; and

M¹⁰ is chosen from the counterions represented by M¹ in structure ( 1) ;

(K) Alkyl polyσlucosides of the following structure

(ID

where R¹¹ represents a C₁₀ to C_]4 alkyl group; and n is an integer f om 1 to 3;

(L) Poly(oxyalkylene) fatty alkyl ether of the following structure (12)

R¹² O (Z¹²0)_D H 02)

where R¹² represents a C₈ to C₁₈ alkyl group; Z¹² is a C₂ or C₃ alkylene group; and p is an integer from 1 to 10;

(M) N-substituted betaines of the following structure

(13)

CH,

,13 N⁺ CH,COO^" CD)

CH*,

where Z .1¹3^J represents

( i) a C₁₀ to C_]8 alkyl group ; or

( ii ) a R¹³CO - NH - (CH,) ₃ group , where R¹³C0 represents a C₁₀ to C₁₈ acyl group ; (N) Sultaines of the following structure (14)

CH₃ OH

I I Z¹⁴ N⁺ CH, CH, CH₂ SO- 0-4)

I CH₃

where Z¹⁴ represents a C_w to C₁₈ alkyl group or a C_ϊ0 to C_x8 acyl amido group; and

(0) Alkyl a phocarboxylates of the following structure (15)

,15

R¹⁵CO NH (CH,), N⁺ (CH,)_rCOOM¹⁵ Q5)

rl5

where R¹⁵CO represents a C_l0 to C₁₈ acyl group; Z¹⁵ and Y¹⁵ are independently from each other chosen from H, CH₂CH,OH or (CH₂)_rCOO^"; r is 1 or 2; and M¹⁵ is as M¹ in structure (1) ;

Preferably the composition according to the invention has a foam height of more than 130mm, as measured by the foam height test described herein.

DISCLOSURE OF THE INVENTION

The Acyl glycolates

The composition according to the invention comprises from 10 to 35% by weight of one or more acyl glycolate(s) of the following structure (1)

where R^O represents a C₆ to C₁₆ acyl radical; a is an integer from 1 to 3; M¹ represents hydrogen or a counterion chosen from alkali metal, ammonium or substituted ammonium group having one or more Cj to C₃ alkyl or hydroxy alkyl group(s) .

Examples of acyl glycolates having the above structure (1) include:

Sodium lauroyl monoglycolate

Sodium myristoyl monoglycolate

Sodium decanoyl monoglycolate

Potassium dodecanoyl monoglycolate

Potassium dodecanoyl diglycolate Sodium myristoyl diglycolate

Sodium lauroyl diglycolate

Lauroyl diglycolic acid

Palmitoyl diglycolic acid

Triethanolammonium dodecanoyl monoglycolate Ammonium decanoyl monoglycolate, and

Triethanolammonium decanoyl monoglycolate.

The preferred acyl group RC0 is a C₁₀ to C₁₄ acyl group.

Preferred examples for M¹ include sodium, potassium, ammonium and triethanolammonium.

The amount of the acyl glycolate present in the composition according to the invention is preferably from 15 to 30%, most preferred from 20 to 30% by weight of the composition. The Co-surfactant

The composition according to the invention further comprises one or more co-surfactant(s) in an amount from 5 to 25% by weight of the composition. The co-surfactant is chosen from the compounds (A) to (0) described hereinafter.

The preferred amount of the co-surfactant present in the composition is from 10 to 25% by weight.

The co-surfactants useful in the present invention are not only very mild but also result in high foaming compositions when combined with the acyl glycolate in the specified amounts.

The following compounds are suitable as co-surfactant in the cleansing composition according to the invention.

(A) N-methyl-N-acyl taurates, having the following structure (2)

CH₃

I

R²C0 N CH,CH, S0₃M² (2)

where R²C0 represents a C,₀ to C_]8 acyl group; and M² is as M¹ in structure (1) .

Preferred examples for taurates having the structure (2) include:

- Sodium N-methyl-N-cocoyl taurate, eg. available as Diapon K from Nippon Oil and Fats,

- Sodium N-methyl-N-lauroyl taurate, eg. available as Diapon LM from Nippon Oils and Fats,

- Sodium N-methyl-N-myristoyl taurate, eg. available as Nikkol MMT from Nikkol Chemicals. (B) Acylisethionates, having the structure (3) ;

where R³C0 represents a Cj₀ to C₁₈ acyl group; and M³ is as M¹ in structure (1) .

The preferred example for an Acylisethionate having the structure (3) is sodium cocoyl isethionate, eg. available as Fenopon AC 78 from Rhone Poulenc.

(C) Alkylesters of ω-sulphonated carboxylic acids, having the structure (4) ;

R⁴ 0 C (CH₂)_b SO₃M⁴ (4)

where R⁴ represents a C₁₀ to C₁₈ alkyl group; M⁴ is as M¹ in structure (1); and (b) is an integer from 1 to 3.

The preferred example for an Alkylester of a ω- sulphonated carboxylic acid having the structure (4) is sodium lauryl sulphoacetate, eg. available as Lathanol LAL from Stepan or as Nikkol LSA and Nikkol Chemicals.

(D) Fatty acylamido polvoxyethylene sulphates, having the structure (5) ;

R⁵CO NH (CH,CH,0)_c S0₃M⁵ (5)

where R⁵C0 represents a C₁₀ to C₁₈ acyl group; M⁵ is as M¹ in structure (1) ; and c is an integer from 1 to 10.

The preferred example for a sulphate having the structure (5) is sodium cocoyl amide EO-3 sulphate, eg. available as Sunamide C-3 from Nippon Oils & Fats.

(E) Fatty acyl polyαlvceride sulphates. having the structure (6) ;

R⁶CO O (CH₂ - CHOH - CH₂0)_d SO^ (6)

A preferred example for a fatty acyl poly(glyceride) sulphate having the structure (6) is sodium cocoyl monoglyceride sulphate, available from Jan Dekker International.

(F) Mono substituted sulphosuccinates. having the structures (7a) or (7b) ;

S0₃X⁷

I Z⁷C0 CH CH, C0,Y⁷ Oa)

S0₃X⁷

I Z⁷CO CH, CH CO,Y⁷ fc*

where Z⁷ is chosen from the following groups (i) to (iϋ):

(i) R^aCO - NH - (CH,CH,0)_c -, where R^aCO represents a C₁₀ to C₁₈ acyl group; and e is an integer from l to 10;

(ii) R^b - O - (CH,CH,0)_f -, where R^b represents a C₁₀ to C₁₈ alkyl group; and f is an integer from

1 to 10; (iii) R^c - O -, where R^c represents a C₁₀ to C₁₈ aklyl group; and

X⁷ and Y⁷ are independently from each other chosen from the counterions represented by M¹ in structure (1) .

Preferred examples for mono substituted sulphosuccinates represented by the structures (7a) and (7b) include:

- Disodium lauroyl a ido (E0)-2 to 3 sulphosuccinate eg. available as Beaulight A-5000 from Sanyo Chemicals,

- a mixture of Disodium lauryl (PEG) -2 sulphosuccinate and Disodium myristyl (PEG) -2 sulphosuccinate, eg. available as Beaulight ESS from Sanyo Chemicals, -Disodium lauryl (PEG) -2 to 3 sulphosuccinate, eg. available as Rewopol SBFA 30 from Rewo, and

- Disodium lauryl sulphosuccinate, eg. available as Beaulight SSS from Sanyo Chemicals.

The short form (E0)-2 to 3 denotes that, as an averaage value, 2 to 3 oxyethylene groups are present per molecule sulphosuccinate. On the other hand, the short form (PEG) -2 to 3 stands for the presence of a polyethylene glycol group derived from, as an average value, 2 to 3 ethylene glycol molecules per molecule sulphosuccinate.

(G) Mono substituted phosphates, having the structure (8),

0M^8b where R⁸ represents a C₁₀ to C₁₈ alkyl group; M⁸³ and M^8b are independently from each other chosen from the group of species represented by M¹ in structure (1) ; and g is an integer from 0 to 3.

Preferred examples for Mono substituted phosphates having the structure (8) include:

- Monosodium monolauryl phosphate, eg. available as Phosten HLP from Nikkol Chemicals,

Monosodium monolauryl (E0)-1 phosphate, eg. available as Phosten HLP-1 from Nikkol Chemicals, and

- Monosodium monolauryl (E0)-2 to 3 phosphate, eg. available as Phosphanol ML 220 from Toho Chemicals.

(H) Alkyl poly(ethylene glycol) acetate, having the structure (9) ,

R⁹ O (CH,CH,0)_h CH, C OM⁹ (9)

where R⁹ represents a Cι₀ to C₁₈ alkyl group; M⁹ is as M¹ in structure (1) ; and h is an integer from 1 to 10.

Preferred examples for Alkyl (PEG) acetates having the structure (9) include, Sodium Cocoyl PEG-10 acetate, eg. available as Marlinat CM 105 from Huls, and Sodium tridecyl

(PEG)-3 acetate, eg. available as Beaulight ECA from Sanyo Chemicals.

(I) Salts of N-acyl α-amino acids, having the structure (10) ;

Z¹⁰ Y¹⁰ O

I I II

R¹⁰CO N CH OM¹⁰ QD) where R>1^ι0^υ,CO represents a C₁₀ to C₁₈ acyl group; Z10 represents H or C_j to C, alkyl; Y¹⁰ represents H, Cj to C₃ alkyl or C_j to C₃ alkyl substituted with a COOH group; and M¹⁰ is chosen from the counteriouns represented by M¹ in structure (1) .

Preferred examples for salts of N-acyl α-amino acids having the structure (10) include:

Sodium N-lauroyl glutamate, available as .Amisoft,

LS-11 from Ajinomoto Inc.,

Sodium N-cocoyl glutamate, eg. available as

Amisoft CS-ll from Ajinomoto Inc.,

Triethanolammonium N-cocoyl sarcosinate, eg. available as Firet KT from Nippon Oil and Fats,

Sodium N-decanoyl sarcosinate,

Sodium N-lauroyl alaninate, eg. available as

Alaninate LN-30 from Nikkol Chemicals,

Sodium N-cocoyl alaninate,

Sodium N-cocoyl aspartate, and

Sodium N-lauroyl aspartate.

(K) Alkyl poly glucoside, having the structure (11) ;

where R¹¹ represents a C,₀ to C,₄ alkyl group; and n is an integer from 1 to 3.

Preferred examples for Alkyl poly glucosides having the structure (11) include; Decyl poly glucoside (n = 1.44), eg. available as Oramix NS10 from Seppic, and

C₉ - C_n Alkyl poly glucoside (n = 1.4) , eg. available as APG 300 from Henkel.

(L) Polv(oxyalkylene) fatty alkyl ether, having the structure (12) ,

R¹² O (Z¹²0)_p H 02)

where R¹² represents a C₈ to C₁₈ alkyl group; Z¹² is a C₂ or C₃ alkylene group; and p is an integer from 1 to 10.

Preferred examples for a poly(oxyalkylene)-fatty alkyl ether having the structure (12) are (PEG)-6 lauryl ether and (PEG)-6 myristyl ether. A mixture of (PEG)-6 C₁₂-C₁₅ is available as Dobanol 91-6 from Shell Chemicals.

(M) N-substituted Betaines. having the structure (13);

CH*,

^•■13 N⁺ CH,COO- 03)

CH,

where Z¹³ represents

(i) a C_JO to C₁₈ alkyl group; or

(ii) a R¹³CO - NH - (CH,)₃ group, where R¹³CO represents a C₁₀ to C_]8 acyl group.

Preferred examples for N-substituted Betaines having the structure (13) include:

Lauryl dimethyl betaine, eg. available as Empigen BB from Albright & Wilson, and

Cocoamidopropyl betaine, eg. available as

Tegobetaine L7F from Goldschmidt.

(N) Sultaines, having the structure (14) ;

CH, OH

>1 N⁺ CH, CH, CH, SO, 04)

CH₃

where Z¹⁴ represents a C_]0 to C₁₈ alkyl group or a C₁₀ to C₁₈ acyl amido group.

A preferred example for a Sultaine having the structure (14) is Cocoamidopropyl hydroxysultaine, eg. available as Cycloteric BET-CS from Alcolac.

(O) Alkylamphocarboxylates, having the structure

(15) ;

z¹⁵ I R¹⁵CO NH (CH,) , N⁺ (CH₂) _rCOOM¹⁵ Q5)

I γl5

where R¹⁵CO represents a C_J0 to C₁₈ acyl group; Z¹⁵ and Y¹⁵ are independently from each other chosen from H, CH₂CH₂OH or (CH₂)_rCOO^"; r is 1 or 2; and M¹⁵ is as M¹ in structure (1).

Preferred examples for Alkylamphocarboxylates having the structure (15) include:

Cocoamphoglycinate eg. available from GAF, Wheatgerm amphodiglycinate, Cocamphodipropionate, eg. available as Mirataine C2MS from Rhone Poulenc,

Caprylamphodipropionate, eg. available as Miranol S2MSF from Rhone Poulenc, - Cocoamphoacetate, eg. available as Nissan Anon

GLM-R from Nippon Oils & Fats.

Water

The cleansing composition according to the invention also comprises water. The water will normally be present in an amount of up to 85%, preferably from 10 to 85% by weight of the composition.

Optional Ingredients

The cleansing composition according to the invention can also comprise optional ingredients to modify the physical or chemical characteristics of the composition, eg. product form, foaming properties, pH-value or shelf life.

Examples for ingredients which can be included in the compositions according to the invention are:

Emollients, such as:

[PEG]-20 Corn Glycerides, [PEG]-60 Corn Glycerides, [PEG]-20 Almond Glycerides, - [PEG]-60 Almond Glycerides,

[PEG]-12 Palm Kernel Glycerides, [PEG]-45 Palm Kernel Glycerides, [PEG]-20 Evening Primrose Glycerides, [PEG]-60 Evening Primrose Glycerides, - Ethoxylated (EO)-20 methyl glucoside, also referred to as Methyl gluceth-20 Propoxylated (E0)-10 methyl glucoside. A group of preferred emollients are poly (oxyalkylene) glycerides mono-substituted with a Cι₀ to C₁₈ alkyl group and having up to 20 C₂ to C₃ oxyalkylene moieties per molecule of the glyceride, as an average value.

Especially preferred emollients are Polyoxyalkylene methyl glucosides having, as an average value, up to 20 C₂ - C₃ oxyalkylene moieties per molecule glucoside. These emollients are very beneficial as they impart a soft feeling to the skin and support the ability of the skin to retain moisture. Examples for such Polyoxyalkylene methyl glucosides are available as Glucam E-20 and Glucam P10, respectively, from Amerchol.

Humectants, such as glycerine, sorbitol, sodium 2- pyrrolidone-5-carboxylate, soluble collagen, gelatine, ethoxylated (E0)-20 methyl glucoside, and propoxylated (E0)-10 methyl glucoside.

Preservatives, such as ethanol, benzoic acid, sodium benzoate, sorbic acid, alkali metal halides;

PH controlling agents, such as Sodium hydroxide,

Citric acid, Triethanolamine, Potassium hydroxide, Amino Sorbitol. The pH controlling agents are preferably present in an amount sufficient to adjust the composition to a pH value in the range of 5.5 to 8.5.

Propellants, such as fluorochloro hydrocarbons, propane, butane, isobutane, dimethyl ether, carbon dioxide, nitrous oxide;

Foam modifying agents, such as cationic polymers, especially quaternised ammonium hydroxy ethyl cellulose polymers, eg. available as polyquaternium-24 or polyquaternium-10. These polymers make the foam creamier and richer. Further Optional Ingredients

The composition according to the invention can also contain other optional agents, that is ingredients other than the main ingredients already defined which are conventionally employed in cleansing compositions, such as thickeners.

USE OF THE COMPOSITION

The cleansing composition according to the invention is primarily intended as a personal washing product for cleansing the face. It can also be used for washing the hair as well as the whole body. The composition according to the invention is preferably used as facial cleanser, facial wash foam, hair shampoo, body shampoo, bath foam or shaving cream. Due to the high detergency provided by the composition it is also possible to use it in non-cosmetic applications, such as a household cleanser, carpet cleanser or detergent for tableware.

The following procedure is an example for the use of the cleansing composition according to the invention; a small quantity, for example from 1 to 5ml, of the composition is either rubbed between the hands, together with water together to form a foam which is then used for washing or applied via a sponge to the area to be cleansed, or the foam is generated directly on that area. The foam is subsequently rinsed away with clean water.

The cleansing composition according to the invention can take the form of a liquid or gel, intended to be dispensed from a capped container such as a bottle, roll-on applicator or tube, or a pump-operated or propellant-driven aerosol dispenser. The composition can also take the form of a solid, such as a stick or a bar or tablet intended to be used for washing instead of a conventional soap bar. Foaming Properties of the Composition

Although the composition according to the invention does not include harsh surfactants, as are found in conventional cleansing compositions, its foaming power is excellent.

Foam-Height Test

The test-method which can be used to assess the foaming power of the cleansing compositions according to the invention is the ASTM D 1173-53 test, also referred to as Ross-Miles test, and described in J Ross and G D Miles, American Society for Testing Materials, 1953, pages 644- 646. The test is carried out at a temperature of 20°C by using an aqueous test solution of 0.3% by weight acyl glycolate and 0.1% by weight co-surfactant. This is a realistic concentration of the cleansing composition according to the invention when used by the consumer, eg. when topically applied on the face or body together with water to generate the desired foam. The pH value of the test solution has been adjusted to a pH of 7.5 by addition of aqueous sodium hydroxide solution.

The cleaning composition according to the invention conveniently has a foam height of more than 130mm, as measured by the foam height test carried out under the conditions described above.

Preferably the compositions according to the invention have a foam height of more than 150mm, more preferably more than 170mm and most preferably more than 190mm. EXAMPLES

The following examples further illustrate the invention by giving conventionally prepared formulations for different types of cleansing compositions.

Example 1 - Facial Cleanser wt

Potassium dodecanoyl monoglycolate 15, .00

Potassium dodecanoyl diglycolate 15, .00

Disodium lauryl sulphosuccinate 7, .00

Glycerol (Humectant) 5, .00 Sodium chloride (Thickener) 4, .20

Methyl gluceth-20 (Humectant/Emollient) 3, .00

Polyquaternium 10 (Foam modifier) 0, .40

Ethyleneglycol monostearate (Thickener) 0, .40

Preservative 0. .30 Fragrance 0, .30

Citric acid to pH 7. 0-7.5

Distilled water to 100.1 30

Example 2 - Mild Facial Cleanser wt

Sodium myristoyl diglycolate

20.00

Sorbitol (Humectant) 9. .00

Sodium cocoyl isethionate 7, .00 Cocoamidopropyl hydroxysulphobetaine 4 .00

Polyoxyethylene [E0]-20 sorbitan monolaurate 3 .00

(Thickener)

Hydroxypropyl methylcellulose (Thickener) 0 .20

Preservative , 0 .20 Fragrance 0 .10

Citric acid to PH 6. 0-6. .5

Distilled water to 100.1 00 Example 3 - Facial Cleanser for Dry Skin t

Sodium lauroyl diglycolate 25.00 Sodium monolauryl phosphate 10.00

Propylene glycol 10.00

Polyethyleneglycol (PEG)-150 distearate 5.00

Preservative 0.25

Fragrance 0.20 Citric acid to pH 6.5-7.0

Distilled water to 100.00

Example 4 - Mild Facial Cleanser for Sensitive Skin wt % Lauroyl diglycolic acid 20.0

Sodium N-methyl-N-myristoyl taurate 6.00

Cocoamphoacetate 3.50

Glycerol (Humectant) 9.00

Diglycerol (Humectant) 1.00 PEG-20 almond glycerides (Emollient) 5.00

Polyquaternium 24 (Thickener, Foam Modifier) 0.40

Sodium Hydroxide (aq. soln.) to pH 6.0-6.5

Distilled water to 100.00

Example 5 - Liquid Hand Soap wt

Lauroyl diglycolic acid 7.50

Palmitoyl diglycolic acid 7.50

Triethanolammonium N-lauroyl glutamate 9.00 Cocoamidopropyl betaine 4.00

Propyleneglycol hydroxy isostearate (Thickener) 1.00 Trisodium citrate (Thickener) 7.00

Preservative 0.26

Fragrance , 0.15 Triethanolamine to pH 7.0-7.3

Distilled water to 100.00 Example 6 - Anti-Acne Facial Cleansing Scrub Gel wt

Sodium decanoyl monoglycolate 18.00

Sodium N-cocoyl sarcosinate 6.00 Benzoyl peroxide (70% aq.soln.) 14.30

Polyoxyethylene (PEG)-20 cetyl ether (Thickener, Emulsifier) 10.00

Magnesium aluminium silicate (Thickener) 1.00

Disodium ethylenediamine tetraacetate (Chelating Agent) 0.20

Sodium Hydroxide to pH 7.0-7.

Distilled water to 100.00

Example 7 - Hair Shampoo wt

Triethanolammonium dodecanoyl monoglycolate 21 .00

Sodium lauryl (PEG)-10 acetate 4 .00

Cocoamphodipropionate 3 .00

Propylene glycol (Humectant) 2 .50 Sodium chloride (Thickener) 1 .20

Preservative 0 .20

Fragrance 0 .20

Citric acid to pH 6. 0-6. .5

Distilled water to 100.1 DO

Example 8 - Mild Hair Shampoo wt

Potassium myristoyl diglycolate 15. .00

Lauryl ethoxylated (EO)-2.5 phosphoric acid 8. .00 Sodium pyrrolidone carboxylate (50% aq.soln.) 1. .00

(Humectant)

Sodium chloride (Thickener) 3 .00

Fragrance 0 .24

Preservative 0 .10 Potassium hydroxide (aq.soln.) to pH 6. 0-6. .5

Distilled water to 100.1 00 Example 9 - Conditioning Shampoo wt

Potassium lauroyl monoglycolate 11.00

Sodium lauroylamide polyoxyethylene (EO)-3 sulphate 4.50

Lauryldimethyl betaine 4.00

Potassium chloride (Thickener) 2.50

Dimethicone copolyol (Conditioning agent) 0.50

Preservative 0.17 Fragrance 0.11

Dye 0.02

Citric acid to pH 6.5-7,

Distilled water to 100.00

Example 10 - Antidandruff Shampoo wt

Ammonium decanoyl monoglycolate 14, .00

Ammonium decanoyl diglycolate 4, .00

Ammonium lauryl sulphoacetate 5, .00 Zinc Pyrithione (48% aq.soln.) (Anti-fungal agent) 2, .10

Hydroxypropyl methylcellulose 1, .25

Magnesium aluminium silicate (Thickener) 1, .00

Preservative 0, .36 Fragrance 0, .20

Dye 0, .03

Citric acid to pH 7. 0-7. .3

Distilled water to 100. ( DO

Example 11 - Body Shampoo wt %

Dodecanoyl diglycolic acid 13.00

Sodium N-cocoyl alaninate 4.00

Lauroamphoglycinaate 4.00 (PEG)-80 sorbitan laurate (Thickener) 3.30

Disodium ethylenediamine tetraacetate 0.20

Preservative 0.10 Fragrance 0.05

Dye 0.01

Citric acid to pH 7.0-7.5

Distilled water to 100.00

Example 12 - Mild Body Shampoo wt %

Triethanolammonium lauroyl monoglycolate 7.50

Triethanolammonium myristoyl monoglycolate 7.50 Disodium lauryl (PEG) -2.5 sulphosuccinate 10.00 Cocoamidoproyl betaine 5.00

Glycerol 5.00

Polyoxyethylene (PEG) -45 monostearate (Thickener) 2.00 Preservative 0.35 Fragrance 0.35

Citric acid to pH 7.0-7.5

Distilled water to 100.00

Example 13 - Liquid Body Shampoo wt_

Potassium decanoyl monoglycolate 10 , . 00

Potassium decanoyl diglycolate 10 , . 00

Decyl polyglucoside (n=1.44) 5 . 00

Glycerol 5 . 00 Trisodium citrate dihydrate (Thickener) 1 . 50

Sodium carboxymethyl cellulose (Thickener) 1 . 00

Citric acid to pH 7 . 0-7

Distilled water to 100. 1 DO

Example 14 - Aerosol Body Shampoo wt

Sodium decanoyl monoglycolate 10.00

Sodium decanoyl diglycolate 10.00

Decyl polyglucoside (n=1.44) 5.50 Glycerol 2.00

Trisodium citrate dihydrate 1.50

Sodium carboxymethyl cellulose 1.00

Preservative 0.35

Fragrance 0.35 Citric acid to pH 7.0-7.5

Distilled water to 100.00

95% by weight of the solution obtained by mixing the above ingredients was combined with 5% by weight propellant and then sealed into a container.

Example 15 - Bath Foam Concentrate wt Lauroyl monoglycolic acid 15.00

Lauroyl diglycolic acid 10.00

Cocoamphopropionate 5.00

Sorbitol 9.00

Sodium chloride 6.00 Sodium carboxymethyl cellulose (Thickener) 1.00

Preservative 0.30

Fragrance 0.60

Chamomile distillate (Anti-inflammatory agent) 1.00

Aminosorbitol to pH 7.0-7.5 Distilled water to 100.00

Example 16 - Mild Bath Foam wt

Sodium myristoyl monoglycolate 18.00 Sodium myristoyl diglycolate 6.00

Sodium lauroyl monoglyceride sulphate 5.00

Cocoamidopropyl hydroxysulphobetaine 4.00

Preservative 0.20

Fragrance 1.00 Citric acid to pH 7.2-7.7

Distilled water to 100.00

Example 17 - Conditioning Bubble Bath wt Triethanolammonium decanoyl monoglycolate 20.00 Cocoamphodiacetate 5.00

Polyoxyethylene (PEG)-20 cetyl ether 4.00 Polyoxyethylene (PEG)-50 stearyl ether 4.00 Lauryl methyl gluceth-10 hydroxypropyl diammonium chloride (Conditioner) 0.50 Polyquaternium 24 (Thickener) 0.40 Citric acid to pH 7.0-7.5 Distilled water to 100.00

Example 18 - Cleansing Bar wt Sodium lauroyl diglycolate 20.00

Sodium myristoyl diglycolate 15.00 Sodium N-cocoyl glutamate 15.00 Sodium N-stearoyl aspartate 10.00 Glycerol 8.00 Diglycerol 8.00

Preservative 0.30 Fragrance 0.60 Pigment 0.10 Distilled water to 100.00%

Example 19 - Facial Wash Foam w/w

Sodium lauroyl glycolate 14.00

Sodium myristoyl glycolate 6.00 Sodium lauryl ethoxy phosphate 6.00

Disodium lauroyl amido ethoxy sulphosuccinate 2.00

Disodium wheatgerm amido PEG-2 sulphosuccinate 2.00

Polyquaternium-24 0.40

Glycerol (humectant) 10.00 (PEG)-12 palm kernel glycerides (emollient) 5.00

Sodium hydroxide solution to pH 6.8-7.0

Distilled water to 100.00%

Example 20 - Facial Wash Foam

%w/w

Sodium lauroyl glycolate 14.00 Sodium myristoyl glycolate 6.00 Sodium cocoyl isethionate 6.00

Wheatgerm amphodiacetate 2.00

Cocoamphocarboxy glycinate 2.00

Polyquaternium-24 0.40

Glycerol (humectant) 10.00

(PEG)-40 almond glycerides (emollient) 5.00

Sodium hydroxide solution to pH 6.8-7.0

Distilled water to 100.00%

Example 21 - Facial wash foam wt %

Sodium lauroyl glycolate 14.00

Sodium myristoyl glycolate 6.00

Sodium cocoyl isethionate 6.75 Monolauryl phosphoric acid 2.40

Dilauryl phosphoric acid 0.60

Triethanolammonium N-cocoyl sarcosinate 1.00

Glycerol 10.00

Polyquaternium 10 0.40 Sodium hydroxide solution to pH 6.8-7.0

Distilled water to 100.00%

Example 22 - Facial wash foam wt Sodium lauroyl glycolate 14 , . 00

Sodium myristoyl glycolate 6 , . 00 Sodium cocoyl isethionate 6 , . 00 Sodium N-methyl-N-cocoyl taurate 3 . 00 Sodium N-cocoyl sarcosinate 1 , . 00 Glycerol 10 . 00

Polyquaternium 10 0 . 40

Sodium hydroxide solution to pH 6 . 8-7

Distilled water to 100 . ( D0%

Claims

1. A cleansing composition which comprises, in addition to water,

where R^O represents a C₆ to C₁₆ acyl radical; a is an integer from 1 to 3; M¹ represents hydrogen or a counterion chosen from alkali metal, ammonium or a substituted ammonium group having one or more C] to C₃ alkyl or hydroxy alkyl group(s); and

(A) N-methyl-N-acyl taurates of the following structure (2)

CH,

R²C0 N CH,CH, — S0₃M² (2 )

where R²C0 represents a C₁₀ to C₁₈ acyl group ; and M² is as M¹ in structure ( 1) ;

(B) Acyl isethionates of the following structure (3 )

R³CO 0CH,CH, SO-_jM³ (3)

where R³CO represents a C₁₀ to C₁₈ acyl group ; and M³ is as M¹ in structure (1) ;

R⁴ 0 C (CH₂)_b SOaM⁴ (4)

where R⁴ represents a C₁₀ to C₁₈ alkyl group; M⁴ is as M¹ in structure (1); and (b) is an integer from 1 to 3;

(D) Fatty acylamido polyoxyethylene sulphates of the following structure (5)

R⁵CO NH (CH,CH₂0)_c S0₃M⁵ (5)

where R^sCO represents a C₁₀ to C₁₈ acyl group; M⁵ is as M¹ in structure (1) ; and c is an integer from 1 to 10;

(E) Fatty acid polyglyceride sulphates of the following structure (6)

R⁶C0 O (CH, - CHOH - CH,0)_d S0₃M° (6)

where R⁶C0 represents a C₁₀ to C₁₈ acyl group; M⁶ is as M¹ in structure (1); and d is an integer from 1 to 4;

(F) Mono substituted sulphosuccinates of the following structures (7a) or (7b)

S0₃X⁷

I Z⁷C0 CH CH, C0,Y⁷ £)

S0₃X⁷

I Z⁷C0 CH, CH C0,Y⁷ fy where Z⁷ is chosen from the following groups (i) to (iii):

(i) R^aCO - NH - (CH₂CH₂0)_e -, where R^aC0 represents a C₁₀ to C₁₈ acyl group; and e is an integer from 1 to

10;

(ii) R^b - 0 - (CH₂CH₂0)_f -, where R^b represents a C₁₀ to C₁₈ alkyl group; and f is an integer from l to 10;

(iii) R^c - 0 -, where R^c represents a C₁₀ to C₁₈ aklyl group; and

(G) Mono substituted phosphates of the following structure (8)

R⁸ (OCH,CH,). OM° (8)

OM⁸

where R⁸ represents a C₁₀ to C₁₈ alkyl group; M⁸³ and M^8b are independently from each other chosen from the group of species represented by M¹ in structure (1) ; and g is an integer from 0 to 3;

(H) Alkyl poly(ethylene glycol) acetates of the following structure (9)

R⁹ 0 (CH,CH,0)_h CH, C OM⁹ (9) where R⁹ represents a C₁₀ to C₁₈ alkyl group; M⁹ is as M¹ in structure (1) ; and h is an integer from 1 to 10;

(I) Salts of N-acyl α-amino acids of the following structure (10)

rl rlO

R¹⁰CO N CH OM 10

Cio)

where R¹⁰CO represents a C₁₀ to C₁₈ acyl group; Z¹⁰ represents H or C_! to C, alkyl; Y¹⁰ represents H, C-* to C₃ alkyl or C-* to C₃ alkyl substituted with a COOH group; and M¹⁰ is chosen from the counterions represented by M¹ in structure (1) ;

(K) Alkyl polyglucosides of the following structure

(11)

where R^π represents a C₁₀ to C₁₄ alkyl group; and n is an integer from 1 to 3;

(L) Poly(oxyalkylene) fatty alkyl ether of the following structure (12)

where R¹² represents a C₈ to C₁₈ alkyl group ; Z¹² is a C₂ or C₃ alkylene group ; and p is an integer from 1 to 10 ; (M) N-substituted betaines of the following structure (13)

CH,

?13 N⁺ CH₂COO- 03)

CH,

where Z 1"3 represents

( i) a C₁₀ to C₁₈ alkyl group ; or

( ii) a R¹³CO - NH - (CH,) ₃ group , where R¹³CO represents a C₁₀ to C₁₈ acyl group ;

(N) Sultaines of the following structure ( 14 )

CH₃ OH

I I Z¹⁴ N⁺ CH, CH, CH, S0₃ ^" 0-4)

I CH₃

where Z¹⁴ represents a C₁₀ to C₁₈ alkyl group or a C-*₀ to C₁₈ acyl amido group;

(O) Alkyl a phocarboxylates of the following structure (15)

Z¹⁵

I R¹⁵CO NH (CH,), N⁺ (CH,)_rCOOM¹⁵ QS)

γl5

where R¹⁵CO represents a C₁₀ to C₁₈ acyl group; Z¹⁵ and Y¹⁵ are independently from each other chosen from H, CH₂CH,OH or (CH₂)_rCOO"; r is 1 or 2; and M¹⁵ is as M¹ in structure (1) ;

2. A composition according to claim 1, which has a foam height of more than 130mm, as measured by the foam height test described herein.

3. A composition according to claim 1, in which the acyl group RCO in structure (1) represents a C₁₀ to C₁ acyl group.

4. A composition according to any one of claims 1 to 3, in which the acyl glycolate is present in an amount from 15 to 30% by weight.

5. A composition according to any one of claims 1 to 4, in which the co-surfactant is present in an amount of 10 to 15% by weight.

6. A composition according to any one of claims 1 to 5, which further comprises a quaternised ammonium hydroxy ethyl cellulose polymer.

7. Method of cleansing skin or hair using a composition according to any one of claims 1 to 6.

8. Use of a composition according to any one of claims 1 to 6 as a skin or hair cleansing composition.