Water in oil emulsions with high water content

• US 10,456,336 B2
• Filed: 10/01/2012
• Issued: 10/29/2019
• Est. Priority Date: 09/30/2011
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Motornov, Mikhail, Bui, Hy Si, Simonnet, Jean-Thierry, Pang, Christopher
• Primary Examiner(s): Tran, Susan T
• Application Number:
  US14/241,361
• Publication Number:
  US 20140322152A1
• Time in Patent Office: 2,584 Days
• Field of Search: None
• CPC Class Codes: A61K 2800/10 General cosmetic use
• CPC Class Codes: A61K 8/06 Emulsions
• CPC Class Codes: A61K 8/064 Water-in-oil emulsions, e.g. Water-in-silicone emulsions
• CPC Class Codes: A61K 8/31 Hydrocarbons
• 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 8/8164 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers, e.g. poly (methyl vinyl ether-co-maleic anhydride)
• CPC Class Codes: A61K 8/88 Polyamides
• CPC Class Codes: A61Q 1/00 Make-up preparations; Body powders; Preparations for removing make-up
• CPC Class Codes: A61Q 1/02 Preparations containing skin colorants, e.g. pigments preparations in powder form A61Q1/12
• CPC Class Codes: A61Q 1/06 Lipsticks
• CPC Class Codes: A61Q 1/10 for eyes, e.g. eyeliner, mascara
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: A61Q 19/00 Preparations for care of the skin

Abstract

The present invention generally relates to a water-in-oil emulsion comprising at least one oil-soluble polar modified polymer and at least one polylysine, wherein the emulsion has a high water content.

Claims

1. An emulsion comprising:

(a) at least 45% water by weight with respect to the total weight of the emulsion;

(b) a water-insoluble, crosslinked reaction product of (i) at least one polylysine; and

(ii) at least one low carbon oil-soluble polar modified polymer comprising at least one C2-C4 monomer and modified with maleic anhydride, and having a weight-average molecular weight of less than or equal to 25 000 g/mol and a melting point above 75°

C.,

wherein the emulsion is in the form of a water-in-oil emulsion.

2. The emulsion of claim 1, wherein the at least one low carbon oil-soluble polar modified polymer consists essentially of polypropylene and maleic anhydride.

3. The emulsion of claim 1, further comprising at least one coloring agent.

4. The emulsion of claim 1, wherein the emulsion is made using from 0.01 to 10% by weight, based on the weight of the emulsion, of the polylysine.

5. The emulsion of claim 1, wherein the emulsion is made using from 0.05 to 8% by weight, based on the weight of the emulsion, of the polylysine.

6. The emulsion of claim 1, wherein the emulsion is made using from 1 to 30% by weight, based on the weight of the emulsion, of the low carbon oil-soluble polar modified polymer.

7. The emulsion of claim 1, wherein water is present in an amount of from 45 to 90% by weight, based on the weight of the emulsion.

8. A cosmetic composition comprising the emulsion of claim 1.

9. A method of making up skin comprising applying the composition of claim 8 to the skin.

10. A method of making up lips comprising applying the composition of claim 8 to the lips.

11. A method of making up eyelashes comprising applying the composition of claim 8 to the eyelashes.

12. The emulsion of claim 1, wherein the at least one low carbon oil-soluble polar modified polymer is a polypropylene and/or polyethylene maleic anhydride wax.

13. The emulsion of claim 12, wherein water is present in an amount of at 45% to 90% by weight with respect to the total weight of the emulsion.

14. The emulsion of claim 13, further comprising at least one coloring agent.

15. The emulsion of claim 13, wherein the emulsion is made using from 0.01 to 10% by weight, based on the weight of the emulsion, of the polylysine.

16. The emulsion of claim 13, wherein the emulsion is made using from 0.05 to 8% by weight, based on the weight of the emulsion, of the polylysine.

17. The emulsion of claim 13, wherein the emulsion is made using from 1 to 30% by weight, based on the weight of the emulsion, of the low carbon oil-soluble polar modified polymer.

18. The emulsion of claim 1, wherein the emulsion is substantially free of surfactants.

19. The emulsion of claim 13, wherein the emulsion is substantially free of surfactants.

20. The emulsion of claim 1, wherein water is present in an amount of 45% to 90% by weight with respect to the total weight of the emulsion and wherein the emulsion is substantially free of surfactants.

21. The emulsion of claim 18, wherein only O/W surfactants are present.

22. The emulsion of claim 19, wherein only O/W surfactants are present.