Cosmetic composition comprising a superabsorbent polymer and a lamellar or platelet-shaped matting mineral filler

Abstract

The present invention relates to a composition for topical application, comprising at least one aqueous phase, at least one superabsorbent polymer and at least one lamellar or platelet-shaped matting mineral filler. A subject of the invention is also a cosmetic treatment process for keratin materials, which consists in applying to the keratin materials a composition as defined above, and also the use of this composition in the cosmetic or dermatological field, and in particular for caring for, protecting and/or making up bodily or facial skin, or for haircare. The composition according to the invention has both a matt appearance throughout all the steps of its use, from the appearance of the product up to the finished skin, and a comfortable sensation throughout its use, from the application to the total penetration of the product.

Claims

1. A composition for topical application, comprising at least one aqueous phase, 0.05% to 15% of at least one superabsorbent polymer, wherein the at least one superabsorbent polymer is selected from the group consisting of crosslinked acrylic homopolymers or copolymers and 0.05% to 10% of at least one lamellar or platelet-shaped matting mineral filler, wherein the at least one lamellar or platelet-shaped matting mineral filler is a member selected from the group consisting of perlite and expanded perlite and mixtures thereof, and the at least one superabsorbent polymer is, in dry form, in the form of particles with a weight-average size of less than or equal to 100 m, and wherein the composition is in the form of an oil-in-water emulsion or a water-in-oil emulsion.

2. The composition according to claim 1, in which the at least one superabsorbent polymer is, once hydrated, in the form of particles with a weight-average size ranging from 10 m to 1000 m.

3. The composition according to claim 1, in which the at least one superabsorbent polymer has a capacity to absorb water at 0.9% of NaCl from 10 to 100 g/g.

4. The composition according to claim 1, in which the at least one superabsorbent polymer is chosen from crosslinked sodium polyacrylates.

5. The composition according to claim 1, in which the at least one superabsorbent polymer is in the form of spherical particles.

6. The composition according to claim 1, in which the at least one lamellar or platelet-shaped matting mineral filler is solid mineral particles with a refractive index of less than or equal to 1.55.

7. The composition according to claim 6, in which the length of the particles ranges from 0.01 to 100 m, and their height (thickness) ranges from 0.1 nm to 1 m (0.1 to 1000 nm).

8. The composition according to claim 1, in which the at least one lamellar or platelet-shaped matting mineral filler is chosen from particles with a water absorption capacity, measured at the wet point, of greater than or equal to 100 g.

9. The composition according to claim 1, in which the at least one superabsorbent polymer is, in dry from, in the form of particles with a weight-average size of less than or equal to 50 m.

10. The composition according to claim 1, in which the at least one superabsorbent polymer, once hydrated, in the form of particles with a weight-average size ranging from 20 m to 500 m.

11. The composition according to claim 1, in which the at least one superabsorbent polymer is an acryloacrylamide/sodium acrylate copolymer.

12. The composition according to claim 6, wherein said crosslinked acrylic homopolymers or copolymers is a neutralized crosslinked acrylic homopolymer or copolymer.

13. The composition according to claim 6, in which the length of the particles ranges from 0.1 to 50 m and their height (thickness) ranges from 1 nm to 600 nm.

14. The composition according to claim 1, in which the at least one lamellar or platelet-shaped matting mineral filler is chosen from particles with a water absorption capacity, measured at the wet point, ranging from 200% to 1500%.

15. A composition for making up facial skin to impart a matt appearance to the facial skin comprising: at least one aqueous phase; 0.05% to 15% of at least one superabsorbent polymer that is crosslinked acrylic homopolymer or copolymer, wherein the at least one superabsorbent polymer is, in dry form, in the form of particles with a weight-average size of less than or equal to 100 m; 0.05% to 10% of at least one lamellar or platelet-shaped matting mineral filler selected from the group consisting of perlite, expanded perlite, and mixtures thereof; wherein the composition is in the form of an oil-in-water emulsion or a water-in-oil emulsion, and the composition provides a matt appearance to the facial skin.

16. The matt composition of claim 15, further comprising: at least one linear or branched lower monoalcohols containing from 1 to 8 carbon atoms.

17. A cosmetic process for treating a keratin material, in which a cosmetic composition as defined in-claim 1 is applied to the keratin material.

Description

EXAMPLES

(1) For all the compositions made, the following parameters were evaluated:

(2) Matt Appearance

(3) The matt appearance of the products and of the skin is evaluated: in the conditioning during spreading onto the skin at the end of application (before total drying) 2 minutes after total penetration.

(4) The reflection of the product is defined on a scale from very matt to very glossy: very matt; matt; quite matt; glossy; very glossy.

(5) Comfort

(6) The comfort of the products on the skin is evaluated 2 minutes after total penetration. On a scale ranging from Not, sparingly, moderately, quite and very.

(7) These parameters were evaluated visually and by touch by a panel of 10 experts, according to the following protocol.

(8) The panel of experts trained in the description of care products evaluates the formulations monadically. The products are conditioned in standard 15 ml transparent jars that are coded. Within the same session, the samples are presented in random order to each panelist. 0.05 ml of product is applied to the top half of the hand (washed beforehand with water and liquid soap and wiped with a paper handkerchief) and then spread out (10 passes with the index and major fingers).

(9) Comparative Examples: Matting Emulsion

(10) TABLE-US-00001 A* B PHASE A Water qs 100 qs 100 Preserving agent(s) 0.4 0.4 PHASE B Glycerol 7 7 Sodium acrylates crosspolymer-2 (and) water (and) 0.8 silica (Aquakeep 10 SH NF sold by the company Sumimoto Seika) Sodium polyacrylate (Cosmedia SP sold by the 0.8 company Cognis) PHASE C Dicaprylyl carbonate 10 10 Inulin lauryl carbamate (Inutec SP1 from Beneo Bio 0.2 0.2 Based Chemicals) PHASE D Perlite (Optimat 2550 OR sold by the company World 1 1 Minerals) PHASE E Denatured alcohol 5 5 Fragrance 0.1 0.1 *Composition according to the invention

(11) Manufacturing Process

(12) Heat phase A up to 80 C. to dissolve the preserving agents. Cool to 70 C. and add phase B while mixing with a Rayneri blender. Homogenize until a homogeneous gel is obtained and add phase C, while mixing with a Rayneri blender, at about 50 C. Cool to room temperature and add phases D and E.

(13) Evaluation

(14) Matt Effect:

(15) Emulsion A: According to the Invention

(16) 8/10 of the volunteers considered the product to be from very matt to matt over all the steps of its use.

(17) 2/10 considered the product to be matt over all the steps of its use, except at the end of application, where the product was judged to be quite matt.

(18) Emulsion B: Outside the Invention

(19) 9/10 of the volunteers considered the product to be very glossy over all the steps of its use before the total penetration and quite matt 2 minutes after penetration.

(20) 1/10 of the volunteers considered the product to be glossy over all the steps of its use before the total penetration and quite matt 2 minutes after penetration.

(21) Comfort:

(22) Emulsion A: According to the Invention

(23) 9/10 of the volunteers considered the product to be very comfortable.

(24) 1/10 of the volunteers considered the product to be quite comfortable.

(25) Emulsion B: Outside the Invention

(26) 8/10 of the volunteers considered the product to be sparingly comfortable.

(27) 2/10 of the volunteers considered the product to be quite comfortable.

(28) Thus, composition A according to the invention is judged to be both more matt and more comfortable than composition B outside the invention.

(29) Example According to the Invention: Moisturizing Cream for Greasy Skin

(30) TABLE-US-00002 Composition C PHASE A Water qs 100 Preserving agent(s) 0.4 PHASE B Glycerol 10 Sodium acrylates crosspolymer-2 (and) water (and) silica 0.8 (Aquakeep 10 SH NF sold by the company Sumimoto Seika) PHASE C Polydimethylsiloxane 5 cSt 5 Isohexadecane 5 Inulin lauryl carbamate (Inutec SP1 from Beneo Bio Based 0.2 Chemicals) PHASE D Perlite 1 (Optimat 2550 OR sold by the company World Minerals) PHASE E Denatured alcohol 7 Fragrance 0.1

(31) Manufacturing Process

(32) Heat phase A up to 80 C. to dissolve the preserving agents. Cool to 70 C. and add phase B while mixing with a Rayneri blender. Homogenize until a homogeneous gel is obtained and add phase C, while mixing with a Rayneri blender, at about 50 C. Cool to room temperature and add phases D and E.

(33) Results

(34) The formulation is quite matt in appearance, until after application. It is judged to be comfortable.

(35) Example According to the Invention: Matt-Effect After-Shave Serum for Men

(36) TABLE-US-00003 Composition D PHASE A Water qs 100 Preserving agent(s) 0.4 PHASE B Caprylic/capric triglyceride (and) sodium acrylate copolymer 2 (Luvigel EM sold by the company BASF) PHASE C Glycerol 7 Sodium acrylates crosspolymer-2 (and) water (and) silica 0.4 (Aquakeep 10 SH NF sold by the company Sumimoto Seika) PHASE C Isohexadecane 2 PHASE D Silica (Sunsphere H51 sold by the company AGC SI-Tech) 1 Perlite (Optimat 2550 OR from World Minerals) 1 PHASE E Denatured alcohol 5 Fragrance 0.1

(37) Manufacturing Process

(38) Heat phase A up to 80 C. to dissolve the preserving agents. Cool to 70 C. and add phase B while mixing with a Rayneri blender. Homogenize until a homogeneous gel is obtained and add phase C, while mixing with a Rayneri blender, at about 50 C. Cool to room temperature and add phases D and E.

(39) Results

(40) The formulation is quite matt in appearance, until after application. It is judged to be comfortable.

(41) Example According to the Invention: Moisturizing Cream

(42) TABLE-US-00004 Composition E PHASE A Disodium EDTA 0.1 Water qs 100 Glycerol 7 Preserving agent(s) 1 PHASE B Cetyl alcohol 0.5 Isopropyl lauroyl sarcosinate 5 Hydrogenated polyisobutene 4 Lipophilic thickener(s) 2 Behenyl alcohol (and) glyceryl stearate (and) disodium 2 ethylene dicocamide PEG-15 disulfate (and) glyceryl stearate citrate (Ceralution H from Sasol) PHASE C Silica 0.5 (Silica beads SB 700 sold by the company Miyoshi Kasei) Sodium acrylates crosspolymer-2 (and) water (and) silica 0.8 (Aquakeep 10 SH NFC sold by the company Sumimoto Seika)

(43) Manufacturing Process

(44) Heat phase A up to 80 C. to dissolve the preserving agents. Cool to 70 C. Heat phase B to 80 C. Add phase B while mixing with an Ultra-Turrax blender. Homogenize until a homogeneous emulsion is obtained and add phase C, while mixing with a Rayneri blender, at about 50 C.

(45) Results

(46) The formulation is quite matt in appearance, until after application. It is judged to be comfortable.