ANHYDROUS SOLID COMPOSITION COMPRISING AN ISETHIONIC ACID DERIVATIVE, A GLUTAMIC ACID DERIVATIVE, AN AMPHOTERIC SURFACTANT AND FILLERS

Abstract

Anhydrous solid composition comprising an isethionic acid derivative, a glutamic acid derivative, an amphoteric surfactant and fillers The subject of the present invention is a composition, preferably a cosmetic composition, in anhydrous solid form, comprising at least one anionic surfactant chosen from isethionic acid derivatives and salts thereof, at least one anionic surfactant chosen from glutamic acid derivatives and salts thereof, at least one amphoteric surfactant, and at least 20% by weight of fillers, relative to the total weight. The composition in accordance with the invention is advantageously in the form of granules, the particle size of which is homogeneous. It readily disaggregates or disintegrates, it is easy to apply to keratin materials, and it allows rapid foam initiation, when the composition is applied to said keratin materials, and also good foam quality.

Claims

1. A composition in anhydrous solid form, preferably in the form of particles, comprising at least one anionic surfactant chosen from isethionic acid derivatives and salts thereof, at least one anionic surfactant chosen from glutamic acid derivatives and salts thereof, at least one amphoteric surfactant, and at least 20% by weight of fillers, relative to the total weight of the composition.

2. The composition as claimed in claim 1, wherein the isethionic acid derivative(s) and salts thereof are chosen from acyl isethionic acids, salts thereof and mixtures thereof, the hydrocarbon-based chain of the acyl group being linear or branched, and saturated or unsaturated, and comprising from 8 to 30 carbon atoms.

3. The composition as claimed in claim 1, wherein the isethionic acid derivative(s) and salts thereof are chosen from the compounds of formula: ##STR00004## in which: R1 represents a linear or branched, saturated or unsaturated hydrocarbon-based chain, comprising from 8 to 30 carbon atoms M.sup.+ represents H.sup.+ or a cation, and R2, R3, R4 and R5 independently represent a hydrogen atom or a linear or branched alkyl group comprising from 1 to 4 carbon atoms.

4. The composition as claimed in claim 1, wherein the isethionic acid derivative(s) are chosen from sodium lauroyl methyl isethionate, sodium methyl isethionate, sodium cocoyl isethionate, and mixtures thereof.

5. The composition as claimed in claim 1, wherein the isethionic acid derivative(s) and salts thereof are present in an active material content ranging from 1% to 60% by weight relative to the total weight of the composition.

6. The composition as claimed in claim 1, wherein the glutamic acid derivative(s) and salts thereof are chosen from acylglutamic acids in which the acyl group comprises from 10 to 30 carbon atoms. and the salts of these acids.

7. The composition as claimed in claim 1, wherein the glutamic acid derivative(s) and salts thereof are present in an active material content ranging from 1% to 60% by weight relative to the total weight of the composition.

8. The composition as claimed in claim 1, wherein the amphoteric surfactant(s) are chosen from N—(C.sub.8-C.sub.22)alkylbetaines, N—(C.sub.8-C.sub.22)alkylsulfobetaines, N—(C.sub.8-C.sub.22)alkylamido(C.sub.1-C.sub.6)alkylbetaines, N—(C.sub.8-C.sub.22)alkylsultaines, N—(C.sub.8-C.sub.22)alkylhydroxysultaines, N—(C.sub.8-C.sub.22)alkylamido(C.sub.1-C.sub.6)alkylhydroxysultaines, N—(C.sub.8-C.sub.22)alkylamphoacetates, N—(C.sub.8-C.sub.22)alkylamphodiacetates, N—(C.sub.8-C.sub.22)alkylamphopropionates, N—(C.sub.8-C.sub.22)alkylamphodipropionates, N—(C.sub.8-C.sub.22)alkylamphohydroxypropylsulfonates, diethylaminopropyl cocoaspartamide, and mixtures thereof.

9. The composition as claimed in claim 1, comprising at least one N—(C.sub.8-C.sub.22)alkylamido(C.sub.1-C.sub.6)alkylbetaine.

10. The composition as claimed in claim 1, wherein the amphoteric surfactant(s) are present in an active material amount of between 0.5% and 40% by weight relative to the total weight of the composition.

11. The composition as claimed in claim 1, wherein the fillers are present in a content of greater than or equal to 20% by weight relative to the total weight of the composition.

12. The composition as claimed in claim 1, wherein the amount of fillers ranges from 20% to 80% by weight relative to the total weight of the composition.

13. The composition as claimed in claim 1, comprising at least one filler chosen from talcs, starches and mixtures thereof.

14. The composition as claimed in claim 1, comprising at least one binding agent.

15. The composition as claimed in claim 1, comprising at least one binding agent chosen from polyols.

16. The composition as claimed in claim 14, wherein the binding agent(s) represent from 1% to 30% by weight relative to the total weight of the composition.

17. The composition as claimed in claim 1, comprising at least one cyclodextrin.

18. The composition as claimed in claim 17, wherein the cyclodextrin(s) are oligosaccharides of formula: ##STR00005## in which x may be a number equal to 4 (which corresponds to α-cyclodextrin), to 5 (β-cyclodextrin) or to 6 (γ-cyclodextrin).

19. The composition as claimed in claim 17, wherein the cyclodextrin(s) are chosen from β-cyclodextrin and γ-cyclodextrin.

20. The composition as claimed in claim 17, wherein the cyclodextrin(s) represent from 1% to 70% by weight relative to the total weight of the composition.

21. A process for cleansing or removing makeup from keratin materials, wherein a composition as defined in claim 1 is applied to the keratin materials.

22. A process for preparing a composition as defined in claim 1 by wet granulation, comprising the following steps, it being possible for some of them to take place simultaneously: homogeneous mixing of the pulverulent raw materials in the granulator; preparation of the wetting solution, it being possible for this solution to contain at least one binding agent, and transfer into the granulator; wetting of the powders and mixing; granulation in order to to mix powder and liquid so as to achieve the granular structure, by mechanical shear or by pulverization; drying, in order to reduce the moisture content of the granules; calibration, which makes it possible to obtain a good particle size distribution by passing through a calibrated grill or sieve; optionally, addition of lubricants and/or disintegrating agents; and transfer of the calibrated grains into a mixer.

Description

EXAMPLES

[0292] The compositions described in the examples are prepared by wet granulation according to the procedure below.

[0293] Procedure

[0294] The powders are mixed in a 1 l Baker Perkins granulator. The fragrance, then the binding agent, are added by means of a pipette, with stirring. The stirring is maintained so as to obtain granulation of the mixture by mechanical shear.

[0295] The granules thus obtained are distributed on a 160 micron sieve. They are subsequently placed in a ventilated oven at 50° C. and then under a fume hood for drying.

[0296] The composition is then calibrated on a sieve in order to obtain a particle size of between 400 microns and 2500 microns.

[0297] The compositions thus obtained are then evaluated either qualitatively or quantitatively according to the tests below.

[0298] In Vitro Dispersion Test

[0299] 0.5 g of granules is mixed with 1 g of Hépar hard water at ambient temperature in a 15 ml graduated tube. The mixture is stirred for 10 seconds, in a Vortex-Genie 2 apparatus from Scientific Industries, at vortex speed 1.

[0300] In Vitro Foam Test

[0301] 0.5 g of granules is mixed with 1 g of Hépar hard water at ambient temperature in a 15 ml graduated tube. The mixture is stirred for 40 seconds, in a Vortex-Genie 2 apparatus from Scientific Industries, at vortex speed 1.

[0302] The amount of foam generated is measured in ml on the pipette.

Example 1 According to the Invention: Shower Granules

[0303] The composition below is prepared.

TABLE-US-00001 Pulverulent SODIUM COCOYL ISETHIONATE 16.65 phase (PUREACT I-85 from INNOSPEC ACTIVE CHEMICALS or HOSTAPON SCI 85 from CLARIANT) SODIUM N-LAUROYL L-GLUTAMATE 8.33 (AMISOFT LS 11 from AJINOMOTO) COCAMIDOPROPYLBETAINE POWDER 5.56 (TEGO BETAIN CK D from EVONIK GOLDSCHMIDT) Beta-cyclodextrin 10.17 (CAVAMAX W7 PHARMA from WACKER) Rice starch 18.01 (REMY DR I (IRRADIATED) from BENEO-REMY) Talc 21.43 (IMERCARE PHARMA from IMERYS) Dye(s) qs Liquid phase Propylene glycol 18.91 Fragrance(s) 0.93

[0304] The composition above is evaluated qualitatively. It is in the form of granules, the particle size of which is homogeneous. It mixes well with water and readily disintegrates. It is easy to apply to the skin and the hair. It has good foaming properties: foam initiation is rapid, that is to say that an adequate and sufficiently abundant foam is rapidly obtained, and the foam quality is good; in particular, the foam is creamy and abundant.

Comparative Example 2

[0305] The composition below is prepared.

TABLE-US-00002 Composition A B C Pulverulent SODIUM LAURYL SULFATE POWDER  8.33 14.65 22.98 phase (TEXAPON Z 95 P from BASF) SODIUM COCOYL ISETHIONATE 16.65 — — (PUREACT I-85 from INNOSPEC ACTIVE CHEMICALS or HOSTAPON SCI 85 from CLARIANT) SODIUM N-LAUROYL L-GLUTAMATE —  8.33 — (AMISOFT LS 11 from AJINOMOTO) COCAMIDOPROPYLBETAINE POWDER  5.56  5.56  5.56 (TEGO BETAIN CK D from EVONIK GOLDSCHMIDT) Beta-cyclodextrin 10.17 12.17 12.17 (CAVAMAX W7 PHARMA from WACKER) Rice starch 18.01 18.01 18.01 Talc 21.43 21.43 21.43 (IMERCARE PHARMA from IMERYS) Dye(s) qs qs qs Liquid phase Propylene glycol 18.91 18.91 18.91 Fragrance(s)  0.93  0.93  0.93

[0306] Dispersion Results Obtained

TABLE-US-00003 Composition Example 1 A B C (invention) (comparative) (comparative) (comparative) Dispersion Instantaneous Partial, slow Partial, slow Partial, slow

[0307] Foam Results Obtained

TABLE-US-00004 Composition Example 1 A B C (invention) (comparative) (comparative) (comparative) Foam 6 ml 3 ml 4 ml 4 ml

[0308] The composition of example 1 according to the invention disperses better and more rapidly and makes it possible to obtain more foam, under the hard water conditions at ambient temperature, than the comparative compositions A, B and C.

Example 3 According to the Invention: Shower Granules

[0309] The composition below is prepared.

TABLE-US-00005 Pulverulent SODIUM COCOYL ISETHIONATE 17.43 phase (PUREACT 1-85 from INNOSPEC ACTIVE CHEMICALS or HOSTAPON SCI 85 from CLARIANT) SODIUM N-LAUROYL L-GLUTAMATE 8.71 (AMISOFT LS 11 from AJINOMOTO) COCAMIDOPROPYLBETAINE POWDER (TEGO 5.82 BETAIN CK D from EVONIK GOLDSCHMIDT) Beta-cyclodextrin 10.65 (CAVAMAX W7 PHARMA from WACKER) Corn starch 41.27 Dye(s) qs Liquid phase Propylene glycol 15.14 Fragrance(s) 0.98

[0310] The composition above is evaluated qualitatively. It is in the form of granules, the particle size of which is homogeneous. It mixes well with water and readily disintegrates. It is easy to apply to the skin and the hair. It has good foaming properties: foam initiation is rapid, that is to say that an adequate and sufficiently abundant foam is rapidly obtained, and the foam quality is good; in particular, the foam is creamy and abundant.

Example 4 According to the Invention: Shower Granules

[0311] The composition below is prepared.

TABLE-US-00006 Pulverulent SODIUM COCOYL ISETHIONATE 16.65 phase (PUREACT I-85 from INNOSPEC ACTIVE CHEMICALS or HOSTAPON SCI 85 from CLARIANT) SODIUM N-LAUROYL L-GLUTAMATE 8.33 (AMISOFT LS 11 from AJINOMOTO) COCAMIDOPROPYLBETAINE POWDER 5.56 (TEGO BETAIN CK D from EVONIK GOLDSCHMIDT) CROSSLINKED SODIUM 9.31 CARBOXYMETHYL STARCH (POTATO) (GLYCOLYS from ROQUETTE) Rice starch 18.01 Talc 22.30 (IMERCARE PHARMA from IMERYS) Dye(s) qs Liquid phase Propylene glycol 18.91 Fragrance(s) 0.93

[0312] The composition above is evaluated qualitatively. It is in the form of granules, the particle size of which is homogeneous. It mixes well with water and readily disintegrates. It is easy to apply to the skin and the hair. It has good foaming properties: foam initiation is rapid, that is to say that an adequate and sufficiently abundant foam is rapidly obtained, and the foam quality is good; in particular, the foam is creamy and abundant.

Example 5 According to the Invention: Shower Granules

[0313] The composition below is prepared.

TABLE-US-00007 Pulverulent SODIUM COCOYL ISETHIONATE 16.65 phase (PUREACT I-85 from INNOSPEC ACTIVE CHEMICALS or HOSTAPON SCI 85 from CLARIANT) SODIUM N-LAUROYL L-GLUTAMATE 8.33 (AMISOFT LS 11 from AJINOMOTO) COCAMIDOPROPYLBETAINE POWDER 5.56 (TEGO BETAIN CK D from EVONIK GOLDSCHMIDT) Rice starch 18.01 Talc 31.60 (IMERCARE PHARMA from IMERYS) Dye(s) qs Liquid phase Propylene glycol 18.91 Fragrance(s) 0.93

[0314] The composition above is evaluated qualitatively. It is in the form of granules, the particle size of which is homogeneous. It mixes well with water and readily disintegrates. It is easy to apply to the skin and the hair. It has good foaming properties: foam initiation is rapid, that is to say that an adequate and sufficiently abundant foam is rapidly obtained, and the foam quality is good; in particular, the foam is creamy and abundant.