ACRYLATE-FREE COSMETIC EMULSION

Abstract

Acrylate-free cosmetic O/W emulsion containing at least one polyglycerol ester, hydroxypropyl starch phosphate, and glycerol monostearate and/or sorbitan monostearate.

Claims

1.-15. (canceled)

16. A cosmetic emulsion, wherein the emulsion is an acrylate-free O/W emulsion which is also free of silicone oil and comprises (a) at least one substance selected from polyglyceryl-3 methylglucose distearate, polyglyceryl-10 stearate, polyglyceryl-6 stearate, and polyglyceryl-6 behenate, (b) hydroxypropyl starch phosphate, and (c) glycerol monostearate and/or sorbitan monostearate.

17. The cosmetic emulsion of claim 16, wherein (a) comprises polyglyceryl-3 methylglucose distearate.

18. The cosmetic emulsion of claim 16, wherein (a) comprises polyglyceryl-10 stearate.

19. The cosmetic emulsion of claim 16, wherein (a) comprises polyglyceryl-6 stearate.

20. The cosmetic emulsion of claim 16, wherein (a) comprises polyglyceryl-6 behenate.

21. The cosmetic emulsion of claim 16, wherein the emulsion comprises from 0.1% to 5.0% by weight of (a), based on a total weight of the emulsion.

22. The cosmetic emulsion of claim 21, wherein the emulsion comprises from 0.5% to 3.5% by weight of (a).

23. The cosmetic emulsion of claim 16, wherein the emulsion comprises from 0.1% to 10% by weight of (b), based on a total weight of the emulsion.

24. The cosmetic emulsion of claim 23, wherein the emulsion comprises from 0.2% to 5.0% by weight of (b).

25. The cosmetic emulsion of claim 16, wherein (b) comprises an esterification product based on corn starch.

26. The cosmetic emulsion of claim 16, wherein the emulsion comprises from 0.1% to 5.0% by weight of (c), based on a total weight of the emulsion.

27. The cosmetic emulsion of claim 26, wherein the emulsion comprises from 0.2% to 3.0% by weight of (c).

28. The cosmetic emulsion of claim 16, wherein the emulsion comprises from more than 3% to 30% by weight of an oil phase, based on a total weight of the emulsion.

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

30. The cosmetic emulsion of claim 16, wherein the emulsion further comprises one or more of waxes and oils based on hydrocarbons; saturated, unsaturated or hardened triglycerides; dialkyl ethers having 12 to 24 carbon atoms; esters of monohydric alcohols and monocarboxylic acids having at least 10 carbon atoms.

31. The cosmetic emulsion of claim 16, wherein the emulsion comprises from 0% to 2% by weight of further surfactants and/or emulsifiers, based on a total weight of the emulsion.

32. The cosmetic emulsion of claim 31, wherein the emulsion is free of further surfactants and/or emulsifiers.

33. The cosmetic emulsion of claim 16, wherein the emulsion comprises from 60% to 95% by weight of water, based on a total weight of the emulsion.

34. The cosmetic emulsion of claim 33, wherein the emulsion comprises from 70% to 90% by weight of water.

35. A method of preventing phase separation of an acrylate-free cosmetic O/W emulsion which is also free of silicone oil, wherein the method comprises including in the emulsion (a) at least one substance selected from sodium stearoyl glutamate, alkali metal alkyl sulfates and alkali metal alkyl phosphates, wherein the alkyl group has in each case 16 to 18 carbon atoms, (b) hydroxypropyl starch phosphate, and (c) glycerol monostearate and/or sorbitan monostearate.

Description

COMPARATIVE EXPERIMENTS AND EXAMPLES

[0132] 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.

[0133] The following tables list the example formulations Ex. 1 to Ex. 9, in which only the example formulations Ex. 4 to 7 disclose O/W emulsions according to the invention. The other example formulations are not in accordance with the invention. Comparison of the O/W emulsions according to the invention and those not according to the invention shows that the O/W emulsions according to the invention do not show any phase separation and are thus significantly more stable at elevated temperatures.

[0134] The O/W emulsions are produced by heating phase A and phase C to 75° C. until all components have dissolved. The phases are then mixed. The mixture is homogenized and then cooled to room temperature with stirring. Phase B is stirred into 60 mL of water (separately from phase A) and, after phase D, is added to the emulsion. The emulsion is then homogenized again.

TABLE-US-00001 Phase Ingredients Ex. 1 Ex. 2 Ex. 3 Ex. 4 A Glycerol 5 5 5 5 Aqua To 100 To 100 To 100 To 100 B Hydroxypropyl — — 2.5 2.5 starch phosphate .sup.1 Tapioca starch — — — — Distarch phosphate — — — — C Cetyl alcohol 2 2 2 2 Polyglyceryl-3 1.5 1.5 1.5 1.5 Methylglucose Distearate Hydrogenated 2 2 2 2 coco-glycerides Dicaprylyl ether 3.8 3.8 3.8 3.8 Caprylic/capric 4 4 4 4 triglyceride Glyceryl stearate — 1 — 1 D Phenoxyethanol 0.8 0.8 0.8 0.8 Trisodium EDTA 0.2 0.2 0.2 0.2 Methylparabens 0.3 0.3 0.3 0.3 Storage at 40° C. for 7 days Phase Phase Phase Stable separation separation separation at 50° C. for 7 days Phase Phase Phase Stable separation separation separation Properties when applied to skin No residues, rapid absorption on skin .sup.1 commercial product: C*HiForm A 12747 from Cargill

TABLE-US-00002 Phase Ingredients Ex. 5 Ex. 6 Ex. 7 Ex. 8 Ex. 9 A Glycerol 5 5 5 5 5 Aqua To 100 To 100 To 100 To 100 To 100 B Hydroxypropyl 2.5 5.5 2.5 — — starch phosphate.sup.1 Tapioca starch — — — 2.5 — Distarch phosphate — — — — 2.5 C Cetyl alcohol 2 2 2 2 2 Polyglyceryl-3 4 1.5 1.5 1.5 1.5 Methylglucose Distearate Hydrogenated coco- 2 2 2 2 2 glycerides Dicaprylyl ether 3.8 3.8 3.8 3.8 3.8 Caprylic/capric 4 4 4 4 4 triglyceride Glyceryl stearate 1 1 3.5 1 1 D Phenoxyethanol 0.8 0.8 0.8 0.8 0.8 Trisodium EDTA 0.2 0.2 0.2 0.2 0.2 Methylparabens 0.3 0.3 0.3 0.3 0.3 Storage at 40° C. for 7 days Stable Stable Stable Phase Phase separation separation at 50° C. for 7 days Stable Stable Stable Phase Phase separation separation Properties when applied to skin Distinct Distinct Distinct residues, residues, residues, slow slow slow absorption absorption absorption .sup.1commercial product: C*HiForm A 12747 from Cargill

[0135] In the examples below, the substances listed in the following table are used in each case.

TABLE-US-00003 Substance A Polyglyceryl-3 methylglucose distearate, polyglyceryl-10 stearate, polyglyceryl-6 stearate or polyglyceryl-6 behenate Substance B Glycerol monostearate or sorbitan monostearate

[0136] This means that if an example preparation comprises the ingredient substance A, this example preparation is shown once with polyglyceryl-3 methylglucose distearate, once with polyglyceryl-10 stearate, once with polyglyceryl-6 stearate and once with polyglyceryl-6 behenate. The same applies to substance B.

TABLE-US-00004 Phase Ingredients Ex. 10 Ex. 11 Ex. 12 Ex. 13 A Glycerol 5 5 5 5 Aqua To 100 To 100 To 100 To 100 B Hydroxypropyl 2.5 2.5 5.5 2.5 starch phosphate.sup.1 C Cetyl alcohol 2 2 2 2 Substance A 1.5 4 1.5 1.5 Hydrogenated 2 2 2 2 coco-glycerides Dicaprylyl ether 3.8 3.8 3.8 3.8 Caprylic/capric 4 4 4 4 triglyceride Substance B 1 1 1 3.5 D Phenoxyethanol 0.8 0.8 0.8 0.8 Trisodium EDTA 0.2 0.2 0.2 0.2 Methylparabens 0.3 0.3 0.3 0.3 .sup.1commercial product: C*HiForm A 12747 from Cargill

TABLE-US-00005 Example A O/W cream wt % Polyglyceryl-3 methylglucose distearate 2 Glyceryl stearate 2 C.sub.12-15 Alkyl benzoate 2 Dicaprylyl ether 2 Octyldodecanol 2 Caprylic acid/capric acid triglycerides 1 Jojoba oil 0.5 Tocopheryl acetate 0.3 Sodium ascorbyl phosphate 0.1 Phenoxyethanol 0.7 Hydroxypropyl starch phosphate 3 Octanediol 0.3 Benzethonium chloride 0.05 Pentylene glycol 2 Glycerol 7 Fillers/additives (TiO.sub.2, BHT) 0.5 Parfum as required Water to 100

TABLE-US-00006 Example B O/W day cream with light protection wt % Polyglyceryl-3 methylglucose distearate 2.5 Sorbitan monostearate 2 Macadamia oil 0.5 C.sub.12-15 Alkyl benzoate 3 Caprylic acid/capric acid triglycerides 2 Dicaprylyl carbonate 2 Methylene bis-benzotriazolyl tetramethylbutylphenol 1 (Tinosorb M) Octocrylene 2 Ethylhexyl methoxycinnamate 3 Octyl salicylate 1 Terephthalylidene dicamphor sulfonic acid, sodium salt 0.5 Niacinamide 0.1 Folic acid 0.05 Phenoxyethanol 0.8 Octopirox 0.1 Hexanediol 1 EDTA 0.2 Hydroxypropyl starch phosphate 2.5 Glycerol 7 Additives (xanthan gum, TiO.sub.2) 0.9 Parfum as required Water to 100

TABLE-US-00007 Example C O/W Day cream with light protection wt % Polyglyceryl-10 stearate 1 Glyceryl stearate 2 Cetearyl alcohol 2 Isopropyl palmitate 2 Ethylhexyl stearate 2 C.sub.12-15 Alkyl benzoate 2 Octocrylene 3 Octyl salicylate 4 Methylene bis-benzotriazolyl tetramethylbutylphenol 1 (Tinosorb M) Coenzyme Q10 (ubiquinone) 0.05 Tocophol 0.1 Methylpropanediol 2 Phenoxyethanol 0.5 Benzyl alcohol 0.2 Hydroxypropyl starch phosphate 2 Hyaluronic acid, sodium salt 0.1 Glycerol 5 Additives (EDTA, carrageenan, NaOH.sub.aq) 0.6 Parfum as required Water to 100

TABLE-US-00008 Example D O/W cream wt % Polyglyceryl-10 stearate 1.5 Sorbitan stearate 2 Stearyl alcohol 2 C.sub.12-15 Alkyl benzoate 2 Shea butter 0.5 Caprylic acid/capric acid triglycerides 3 Dicaprylyl carbonate 2 Dicaprylyl ether 1 Homosalate 2 Octocrylene 5 Octyl salicylate 2 Citric acid sodium salt as required Phenoxyethanol 0.8 Benzyl alcohol 0.2 Glycyrrhiza inflata root extract (licochalcone A) 0.1 Ethylhexylglycerol 0.4 Hydroxypropyl starch phosphate 2 EDTA 0.2 Ethanol 3 Glycerol 5 Additives (EDTA, TiO.sub.2; locust bean gum) 1.5 NaOH.sub.aq as required Parfum as required Water to 100

TABLE-US-00009 Example E O/W cream wt % Polyglyceryl-3 methylglucose distearate 1.5 Sorbitan monostearate 2 Cetearyl alcohol 2 Caprylic acid/capric acid triglycerides 3 C.sub.12-15 alkyl benzoate 2 Coconut glycerides 2 Octyldodecanol 2 Methyl p-hydroxybenzoate (paraben) 0.2 Hydroxypropyl starch phosphate 1.5 Octanediol 0.2 4-hydroxyacetophenone 0.2 Glycerol 5 Panthenol 1 Glycerylglucose 0.5 Additives (hydroxypropylmethylcellulose, benzethonium 0.7 chloride, o-cymen-5-ol) Parfum (containing citral, carvone, carvacrol, carveol, as required geraniol, nerol, thymol, menthone, cinnamaldehyde, vanillin, p-anisaldehyde, eugenol, anisyl alcohol, isopropylmethylphenol, terpineol, heliotropin) Water to 100