Cosmetic skin-cleansing mask compositions containing graded spheroidal polyamide particles

• US 5,690,945 A
• Filed: 03/24/1995
• Issued: 11/25/1997
• Est. Priority Date: 03/24/1994
• Status: Expired due to Fees

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Bui-Bertrand, Lien, Louvet-Plaisant, Nathalie
• Primary Examiner(s): Hulina, Amy
• Application Number:
  US08/409,608
• Time in Patent Office: 977 Days
• Field of Search: 424/401, 514/844, 514/944, 514/951, 514/846
• US Class Current: 424/401
• CPC Class Codes: A61K 8/0212 Face masks
• CPC Class Codes: A61K 8/88 Polyamides
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations

Abstract

A cosmetic skin-cleansing mask composition which contains, as its principal cleansing constituent, graded or calibrated spheroidal polyamide particles which are dispersed in an aqueous gel, the particles being present in an amount greater than or equal to 12% by weight relative to the total weight of the composition.

These particles impart to the composition a texture and qualities which are close to those of a cream.

Claims

1. A gelled cosmetic composition for use as a cleansing mask, said composition comprising an aqueous gel and, as principal cleansing agent, graded spheroidal polyamide particles which are dispersed in said aqueous gel, wherein said aqueous gel contains at least one gelling agent present in an amount ranging from 0.3 to 1.0% by weight relative to the total weight of the composition and said particles are present in an amount greater than or equal to 12% by weight relative to the total weight of the composition.

2. A cosmetic composition according to claim 1, wherein the particles are present in an amount which ranges from 12% to 35% by weight relative to the total weight of the composition.

3. A cosmetic composition according to claim 1, wherein the particles have a density which ranges from 1.0 g/cm³ to 1.84 g/cm³.

4. A cosmetic composition according to claim 3, wherein the particles have a density of 1.02 g/cm³ to 1.4 g/cm³.

5. A cosmetic composition according to claim 1, wherein the particles have a size ranging from 5 to 50 μ

m.

6. A cosmetic composition according to claim 5, wherein the particles have a size ranging from 10 μ

m to 30 μ

m.

7. A cosmetic composition according to claim 1, wherein said at least one gelling agent is selected from water-soluble polymers and polymers which give colloidal solutions in water.

8. A cosmetic composition according to claim 1, wherein the gelling agent is selected from polymers and copolymers of unsaturated carboxylic organic acid, polymers and copolymers of unsaturated ester, polysaccharide derivatives, gums, colloidal silicates, polyethylene glycols (PEGs) and derivatives thereof, polyvinylpyrrolidones and derivatives thereof, and hydrophilic silica gels.

9. A cosmetic composition according to claim 1, wherein the gelling agent is selected from acrylic and/or methacrylic polymers and copolymers, carboxyvinyl polymers and copolymers, polyglyceryl acrylates, polyglyceryl methacrylates, cellulose derivatives, starch derivatives, chitin derivatives, alginates, hyaluronic acid and its salts, chondroitin sulphates, xanthan gum, gellan gum, rhamsan gum, karaya gum, guar gum, carob flour, colloidal silicates of aluminium and colloidal silicates of magnesium.

10. A cosmetic composition according to claim 1, characterized in that the gelling agent is present in an amount which ranges from 0.5% to 0.8% of the total weight of the composition.

11. A cosmetic composition according to claim 1, wherein said composition additionally contains water-soluble additives.

12. A cosmetic composition according to claim 11, wherein said water-soluble additives are selected from glycerol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, polyglycerol, sorbitol, glucose, sucrose, magnesium gluconate, trace elements, and water-soluble silicone-containing acids.

13. A cosmetic composition according to claim 1, wherein said composition additionally contains a filler other than said spheroidal polyamide particles.

14. A cosmetic composition according to claim 13, wherein said filler is selected from talc, kaolin, hollow microspheres, modified corn-starch powder, silk powder, clays, silicas, silicone powders, and polymethyl methacrylate powders.

15. A method of cleansing facial skin, comprising the step of applying to the face a cosmetic composition as defined in claim 1.

16. A method of cosmetic treatment, comprising the step of applying to facial skin a cosmetic composition as defined in claim 1.