ACRYLATE AND SILICONE-FREE COSMETIC O/W EMULSION

Abstract

The present application relates to a cosmetic emulsion.

Claims

1.-15. (canceled)

16. A cosmetic oil-in-water (O/W) emulsion, wherein the emulsion is acrylate- and silicone-free and comprises (a) at least one substance selected from alkali metal alkyl sulfates, wherein the alkyl group comprises 15 to 19 carbon atoms, (b) hydroxypropyl starch phosphate, and (c) glyceryl stearate SE.

17. The emulsion of claim 16, wherein (a) comprises one or more of sodium cetyl sulfate, sodium stearyl sulfate, and sodium cetearyl sulfate.

18. The emulsion of claim 16, wherein the emulsion comprises from 0.05% by weight to 2.0% by weight of (a), based on a total weight of the emulsion.

19. The emulsion of claim 18, wherein the emulsion comprises from 0.08% by weight to 1.5% by weight of (a).

20. The emulsion of claim 16, wherein the emulsion comprises from 0.1% by weight to 5% by weight of (b), based on a total weight of the emulsion.

21. The emulsion of claim 20, wherein the emulsion comprises from 0.15% by weight to 4% by weight of (b).

22. The emulsion of claim 16, wherein the emulsion comprises from 0.1% by weight to 6.0% by weight of (c), based on a total weight of the emulsion.

23. The emulsion of claim 22, wherein the emulsion comprises from 0.5% by weight to 5.0% by weight of (c).

24. The emulsion of claim 16, wherein an oil phase concentration is from more than 2% by weight to 30% by weight, based on a total weight of the emulsion.

25. The emulsion of claim 24, wherein an oil phase concentration is from more than 3% by weight to 20% by weight.

26. The emulsion of claim 16, wherein the emulsion further comprises glyceryl stearate.

27. The emulsion of claim 26, wherein the emulsion comprises from 0.3% by weight to 7% by weight of glyceryl stearate, based on a total weight of the emulsion.

28. The emulsion of claim 16, wherein the emulsion further comprises one or more fatty alcohols having from 14 to 22 carbon atoms.

29. The emulsion of claim 16, wherein the emulsion does not contain mineral oil.

30. The emulsion of claim 16, wherein the emulsion further comprises coco glycerides.

31. The emulsion of claim 16, wherein the emulsion further comprises coco caprylate/caprate.

32. The emulsion of claim 16, wherein the emulsion further comprises Butyrospermum parkii butter.

33. The emulsion of claim 16, wherein the emulsion comprises not more than 2% by weight of further surfactants and/or emulsifiers, based on a total weight of the emulsion.

34. The emulsion of claim 16, wherein the emulsion has a viscosity of 3,000 mPa.Math.s to 6,000 mPa.Math.s 24 hours after preparation at 25° C., as determined with a Rheomat R 123 from ProRheo using measuring bob 1 at a speed of 62.5 min.sup.−1.

35. A method of reducing white residues caused by applying an acrylate- and silicone-free O/W emulsion onto skin, wherein the method comprises including in the emulsion a mixture of (a) at least one substance selected from alkali metal alkyl sulfates, wherein the alkyl group comprises 15 to 19 carbon atoms, (b) hydroxypropyl starch phosphate, and (c) glyceryl stearate SE.

Description

COMPARATIVE EXPERIMENTS AND EXAMPLES

[0077] The examples below are intended to illustrate the present invention without limiting it. Unless otherwise stated, all quantitative data, fractions, and percentages are based on the weight and the total amount or on the total weight of the preparations.

[0078] The following table shows with Comp. 1 and Comp. 2 two emulsions not according to the invention, while Ex. 1 represents an emulsion according to the invention. The properties of Comp. 1 and Comp. 2 were compared to Ex. 1. When applying the emulsions to the skin, a panel of experts found that Comp. 1 and Comp. 2 leave significant amounts of white residue when applied to the forearm. In contrast, Ex. 1 shows almost no white residues.

TABLE-US-00001 Ingredient Comp. 1 Comp. 2 Ex. 1 Sodium cetearyl sulfate 0.15 0.15 0.15 Glyceryl stearate SE 1.5 1.5 1.5 Glyceryl stearate 1 1 1 Cetearyl alcohol 4 4 4 Butyrospermum parkii butter 1 1 1 Coco glycerides 6 6 6 Coco caprylate 4 4 4 Carbomer 0.1 Hydroxypropyl starch 1 phosphate Xanthan gum 0.5 Glycerol 7 7 7 Phenoxyethanol 0.9 0.9 0.9 Ethylhexylglycerin 0.2 0.2 0.2 45% sodium hydroxide 0.06 solution Aqua to 100 to 100 to 100 White residue after Significant Very Sparse application to the forearm significant Viscosity 24 hours after 4650 mPas 3250 mPas 4550 mPas preparation, 25° C. Stability, storage at 40° C. for OK OK OK 1 month Stability, storage at 50° C. for OK Sharp OK 1 month water separation

[0079] The abbreviation OK above signifies in order; no phase separation was found.

[0080] The further examples are intended to illustrate the invention further without limiting it.

TABLE-US-00002 Ingredients Ex. 2 Ex. 3 Ex. 4 Ex. 5 Ex. 6 Ex. 7 Sodium cetearyl sulfate 0.15 0.25 0.15 0.15 0.2 0.05 Glyceryl stearate SE 1.5 3 3 1.5 1.5 2.5 Glyceryl stearate 1 1 1 1 1 Cetearyl alcohol 4 3 3.5 4 4 Stearyl alcohol 3 Butyrospermum parkii 1 1 1 1 butter Coco caprylate/caprate 3 2 Coco glycerides 3 6 1 6 Coco caprylate 4 4 4 4 Helianthus annuus seed 2 oil Dicaprylyl ether 3 2 2 Ethylhexyl cocoate 3 2 Hydroxypropyl starch 1 0.5 1 0.7 1.5 2 phosphate Glycerol 7 8 5 6 5 7 Phenoxyethanol 0.9 0.9 0.9 0.5 Ethylhexylglycerin 0.2 0.2 0.2 Glyceryl caprylate 0.3 0.3 Glyceryl caprate 0.5 Alcohol 3.0 Perfume 0.2 0.4 0.3 Aqua to 100 to 100 to 100 to 100 to 100 to 100

TABLE-US-00003 Ingredients Ex. 8 Ex. 9 Ex. 10 Ex. 11 Ex. 12 Ex. 13 Sodium cetearyl sulfate 0.15 0.1 0.15 0.2 0.1 0.15 Glyceryl stearate SE 2 2.5 3.0 1.5 2.5 2.5 Glyceryl stearate 1 Cetearyl alcohol 4 4 3.5 2.5 5 3 Cetyl palmitate 1.0 Dicaprylyl ether 3 Caprylic/capric 4 3 triglycerides Coco caprylate/caprate 4 3 2 Vegetable oil 4 3 Theobroma cacao seed 1 butter Octyldodecanol 3 3.0 Undecane/tridecane 3 Hydroxypropyl starch 0.4 0.5 0.5 0.8 1 0.7 phosphate Glycerol 5 6 7 7 5 8 Phenoxyethanol 0.5 1 0.8 Alcohol Denat. 2 2 2 1 Citric acid 0.2 0.3 Caprylyl glycol 1.0 Ethylhexylglycerin 0.5 Benzyl alcohol 0.3 Sodium phytate 0.2 Perfume 0.4 Aqua to 100 to 100 to 100 to 100 to 100 to 100

TABLE-US-00004 Ingredients Ex. 14 Ex. 15 Ex. 16 Sodium cetearyl sulfate 0.2 0.15 0.15 Glyceryl stearate SE 1.5 1.5 1 Glyceryl stearate 3 5 Cetearyl alcohol 4.5 Cetyl alcohol 2 Stearyl alcohol 2 4 Caprylic/capric triglycerides 2 Octyldodecanol 3 Triisostearin 1 Prunus amygdalus dulcis oil 2 Vegetable oil 0.9 0.4 3 Hydrogenated coco glycerides 1 0.5 1 Butyrospermum parkii butter 0.5 1 Hxdroxypropyl starch phosphate 0.75 1 2 Tapioca starch 2 Xanthan gum 0.1 Ethylhexylglycerin 0.5 0.3 0.1 Glycerol 8 5 15 Alcohol 3 4 5 Perfume 0.2 0.3 0.4 Aqua to 100 to 100 to 100