Wax-in-water emulsion comprising a combination of a glutamic acid derivative and an alkylpolyglycoside

• US 9,320,920 B2
• Filed: 04/22/2010
• Issued: 04/26/2016
• Est. Priority Date: 04/30/2009
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Arditty, Stephane, Lahousse, Florence
• Primary Examiner(s): Barham, Bethany
• Assistant Examiner(s): Anthopolos, Peter
• Application Number:
  US12/765,481
• Publication Number:
  US 20100278770A1
• Time in Patent Office: 2,196 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/44 Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
• CPC Class Codes: A61K 8/604 Alkylpolyglycosides; Derivatives thereof, e.g. esters
• CPC Class Codes: A61K 8/922 of vegetable origin
• CPC Class Codes: A61K 8/927 of insects, e.g. shellac
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 1/10 for eyes, e.g. eyeliner, mascara

Abstract

The present invention relates to a composition for coating keratin fibers, more particularly the eyelashes, characterized in that it is present in the form of a wax-in-water emulsion comprising a combination of at least one glutamic acid derivative and/or salt thereof and at least one alkylpolyglycoside.

Claims

1. A mascara composition in the form of a wax-in-water emulsion, the emulsion comprising:

at least one wax, wherein the total wax concentration, exclusive of C10-C30 fatty alcohols, is 15% to 30% by weight of the emulsion;

monosodium N-stearoyl-L-glutamate at a concentration 0.2% to 2.0% by weight of the emulsion;

cetylstearylglucoside at a concentration of 0.2 to 2.0% by weight of the emulsion; and

cetylstearyl alcohol at a concentration of 1 to 10% by weight of the emulsion;

wherein the emulsion is homogenous.

2. The mascara composition according to claim 1, wherein the monosodium N-stearoyl-L-glutamate is present in the aqueous phase of the emulsion.

3. The mascara composition according to claim 1, wherein a weight ratio of the cetylstearylglucoside to the monosodium N-stearoyl-L-glutamate is greater than or equal to 0.2.

4. The mascara composition according to claim 1, wherein a weight ratio of the cetylstearylglucoside to the monosodium N-stearoyl-L-glutamate is less than 2.0.

5. The mascara composition according to claim 1, wherein a weight ratio of the cetylstearylglucoside to the monosodium N-stearoyl-L-glutamate is greater than or equal to 0.2 and less than 2.0.

6. A method comprising applying to eyelashes the mascara composition according to claim 1.

7. A method comprising applying to eyelashes the mascara composition according to claim 2.

8. A method comprising applying to eyelashes the mascara composition according to claim 3.

9. A method comprising applying to eyelashes the mascara composition according to claim 4.

10. A method comprising applying to eyelashes the mascara composition according to claim 5.

11. A mascara composition in the form of a wax-in-water emulsion, the emulsion comprising:

at least one wax, wherein the total wax concentration, exclusive of C10-C30 fatty alcohols, is 15% to 30% by weight of the emulsion;

monosodium N-stearoyl-L-glutamate at a concentration 0.2% to 2.0% by weight of the emulsion;

cetylstearylglucoside at a concentration of 0.2 to 2.0% by weight of the emulsion; and

cetylstearyl alcohol at a concentration of 1 to 10% by weight of the emulsion;

wherein;

the emulsion is homogenous; and

the emulsion comprises less than 1% by weight of triethanolamine and derivatives thereof.

12. The mascara composition according to claim 11, wherein the monosodium N-stearoyl-L-glutamate is present in the aqueous phase of the emulsion.

13. The mascara composition according to claim 11, wherein a weight ratio of the cetylstearylglucoside to the monosodium N-stearoyl-L-glutamate is greater than or equal to 0.2.

14. The mascara composition according to claim 11, wherein a weight ratio of the cetylstearylglucoside to the monosodium N-stearoyl-L-glutamate is less than 2.0.

15. The mascara composition according to claim 11, wherein a weight ratio of the cetylstearylglucoside to the monosodium N-stearoyl-L-glutamate is greater than or equal to 0.2 and less than 2.0.

16. A method comprising applying to eyelashes the mascara composition according to claim 11.

17. A method comprising applying to eyelashes the mascara composition according to claim 12.

18. A method comprising applying to eyelashes the mascara composition according to claim 13.

19. A method comprising applying to eyelashes the mascara composition according to claim 14.

20. A method comprising applying to eyelashes the mascara composition according to claim 15.