Cosmetic emulsion with reduced sand adhesion

Abstract

The present invention relates to a cosmetic preparation containing glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) and acetyl hydroxyproline (INCI: Acetyl Hydroxyproline), as well as methods and uses with acetyl hydroxyproline (INCI: Acetyl Hydroxyproline) for reducing the sand adhesion of cosmetic preparations.

Description

[0001] The present invention relates to a cosmetic preparation containing glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) and acetyl hydroxyproline (INCI: Acetyl Hydroxyproline), as well as methods and uses with acetyl hydroxyproline (INCI: Acetyl Hydroxyproline) for reducing the sand adhesion of cosmetic preparations.

[0002] The desire to look beautiful and attractive is rooted in human nature. Even though the ideal of beauty has changed over time, the pursuit of a flawless appearance has always been a human goal. The condition and appearance of the skin plays a significant role in achieving a beautiful and attractive appearance.

[0003] For the skin to fully perform its biological functions, it requires regular cleansing and care. Skin care products, usually creams, ointments, or lotions, primarily serve to moisturize and replenish the skin's natural oils. They often contain active ingredients intended to regenerate the skin and, for example, prevent and reduce premature aging (such as the formation of fine lines and wrinkles).

[0004] Skincare products typically consist of emulsions. Emulsions are generally understood to be heterogeneous systems made up of two immiscible or only partially miscible liquids, usually referred to as phases, in which one of the two liquids is dispersed in the other liquid in the form of very fine droplets. Externally, and to the naked eye, emulsions appear homogeneous.

[0005] State-of-the-art cosmetic skincare emulsions, due in part to their lipophilic ingredients, typically exhibit a certain stickiness. This stickiness, particularly when used at the beach, leads to sand adhering to the treated skin. It's important to distinguish this problem of sand adhesion from the subjective perception of a product's stickiness, as even products that don't feel sticky to the touch can exhibit significant sand adhesion. While numerous attempts have been made in the past to develop sand-repellent cosmetic preparations, especially emulsions, this problem remains unsatisfactorily resolved.

[0006] The object of the present invention was therefore to develop a cosmetic emulsion, in particular an oil-in-water emulsion (O / W emulsion) with reduced sand adhesion (“sand-repellent”).

[0007] This task is surprisingly solved by a cosmetic preparation containing a) Glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) and b) Acetylhydroxyproline (INCI: Acetyl Hydroxyproline).

[0008] This problem is surprisingly solved by a method for reducing sand adhesion, a cosmetic preparation containing glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate), wherein acetyl hydroxyproline (INCI: Acetyl Hydroxyproline) is added to the preparation.

[0009] This task is surprisingly solved, not least, by the use of acetylhydroxyproline (INCI: Acetyl Hydroxyproline) in cosmetic preparations containing glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) to reduce sand adhesion.

[0010] The isomer of acetylhydroxyproline that is particularly preferred according to the invention is N-acetyl-L-hydroxyproline.

[0011] Within the scope of the present disclosure, formulations such as "according to the invention", "advantageous in the sense of the present invention", etc. always refer to the preparation according to the invention, the method according to the invention as well as to the use according to the invention, unless otherwise stated.

[0012] According to the invention, it is preferred if the preparation is in the form of an oil-in-water emulsion.

[0013] Advantageous embodiments of the present invention are characterized in that the preparation contains glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) in a concentration of 1.0 to 3.0 wt%, based on the total weight of the preparation.

[0014] It is advantageous within the meaning of the present invention if the preparation contains acetylhydroxyproline (INCI: Acetyl Hydroxyproline) in a concentration of 0.01 to 1.2 wt%, based on the total weight of the preparation. The preferred concentration according to the invention is 0.03 to 0.3 wt%, based on the total weight of the preparation.

[0015] It is advantageous according to the invention if the preparation contains one or more polymers selected from the group of compounds xanthan gum (INCI: Xanthan Gum), distarch phosphate (INCI: Distarch Phosphate) and carrageenan.

[0016] In particular, it is advantageous according to the invention if the preparation contains xanthan gum (INCI: Xanthan Gum) in a concentration of 0.1 to 0.6 wt%, based on the total weight of the preparation.

[0017] Advantageous embodiments of the present invention are further characterized in that the preparation contains one or more fatty alcohols selected from the group of compounds cetyl alcohol (INCI: Cetyl Alcohol), stearyl alcohol (INCI: Stearyl Alcohol), cetearyl alcohol (INCI: Cetearyl Alcohol), behenyl alcohol (INCI: Behenyl Alcohol).

[0018] According to the invention, it is preferred if the preparation contains stearyl alcohol (INCI: Stearyl Alcohol) in a concentration of 1.0 to 3.0 wt%, based on the total weight of the preparation.

[0019] Furthermore, it is advantageous in the sense of the present invention if the preparation contains one or more glyceride esters selected from the group of compounds coco glycerides (INCI: Coco Glycerides), hydrogenated coco glycerides (INCI: Hydrogenated Coco Glycerides) and caprylic / capric triglycerides (INCI: Caprylic / Capric Triglycerides).

[0020] In such a case, it is preferred according to the invention if the preparation contains coconut glycerides (INCI: Coco Glycerides) in a concentration of 2.0 to 5.0 wt%, based on the total weight of the preparation.

[0021] Furthermore, according to the invention, it is preferred if the preparation contains hydrogenated coco glycerides (INCI: Hydrogenated Coco Glycerides) in a concentration of 2.0 to 5.0 wt%, based on the total weight of the preparation.

[0022] Furthermore, according to the invention, it is preferred if the preparation contains caprylic / capric triglycerides (INCI: Caprylic / Capric Triglycerides) in a concentration of 2.0 to 6.0 wt%, based on the total weight of the preparation.

[0023] Particularly advantageous according to the invention are preparations, processes, or uses characterized in that the preparation is free from polyacrylates (INCI: Carbomers), 2-ethylhexyl 2-hydroxybenzoate (INCI: Ethylhexyl Salicylate) and 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate (INCI: Homosalate), 3-(4-methylbenzylidene)-camphor, 2-hydroxy-4-methoxybenzophenone (INCI: Oxybenzone), ethylhexyl 2-cyano-3,3-diphenyl acrylate (INCI: Octocrylene), 2-ethylhexyl 3-(4-methoxyphenyl)prop-2-enoate (INCI: Ethylhexyl Methoxycinnamate), polyethylene glycol, polyethylene glycol ethers and polyethylene glycol esters (so-called PEG derivatives), parabens, methylisothiazolinone, chloromethylisothiazolinone, and DMDM hydantoin.

[0024] Furthermore, the preparation according to the invention can contain the usual components of cosmetic care products. Comparative tests / measurement methods

[0025] The tendency to sand adhesion was determined using a method and a sliding device as described, among others, in EP 3 093 007, with the difference that the angle between the adjacent side and the hypotenuse is 74.6°.

[0026] The following recipes were produced: INCI JV_SENSNIGHT#6(Konzentration inGew.-%) JV_SENSNIGHT#7(Konzentration inGew.-%) Creatine 0.10 0.10 1-Methylhydantoin-2-Imide 0.02 0.02 Acetyl Hydroxyproline 0 1.00 Panthenol+Aqua+Pantolactone+CitricAcid 0.88 0.88 Ubiquinone 0.03 0.03 Ethylhexylglycerin 0.30 0.30 Glycyrrhiza Inflata Root Extract 0.025 0.025 Cocoglycerides 3.00 3.00 Caprylic / Capric Triglyceride 4.00 4.00 Butyrospermum Parkii Butter 4.00 4.00 Macadamia Integrifolia Seed Oil 1.00 1.00 Hydrogenated Coco-Glycerides 2.50 2.50 Ricinus Communis Seed Oil 0.50 0.50 Glyceryl Stearate Citrate 2.00 2.00 Glycerin+Aqua 9.00 9.00 Methylpropanediol 3.00 3.00 Caprylyl Glycol+Aqua 0.20 0.20 Aqua+Sodium Hydroxide 0.06 0.56 Phenoxyethanol+Aqua 0.90 0.90 Aqua 62.785 61.285 Cetearyl Alcohol 4.00 4.00 Stearyl Alcohol 1.50 1.50 Xanthan Gum 0.20 0.20 Total : 100.00 100.00 Results of the sand adhesion test:

[0027] Conclusion: The addition of acetylhydroxyproline (INCI: Acetyl Hydroxyproline) significantly reduces the tendency for sand to adhere. Examples

[0028] The following examples are intended to illustrate the present invention without limiting it. Unless otherwise stated, all quantities, proportions, and percentages are based on the weight and total quantity or total weight of the preparations. INCI 1 2 3 4 5 Creatine 0,15 0,05 1-Methylhydantoin-2-Imide 0,03 0,01 Acetyl Hydroxyproline 0,01 0,2 0,5 0,5 1 Panthenol+ Pantolactone+ Citric Acid 0,5 1 0,3 Tocopherylacetate 0,5 0,65 Ubiquinone 0,05 0,1 0,01 Ethylhexylglycerin 0,25 0,3 0,2 0,4 Glycyrrhiza Inflata Root Extract 0,03 0,01 0,1 0,05 Cocoglycerides 2 1,9 2,5 1 4 Dibutyl Adipate 2 3 Caprylic / Capric Triglyceride 3,85 3,7 4,5 2 5 Butyrospermum Parkii Butter 3,6 3,9 2 1 3 C12-15 Alkyl Benzoate 2 3 Macadamia Integrifolia Seed Oil 1,5 1,1 0,5 0,8 Hydrogenated Coco-Glycerides 2 1,8 2,6 2,1 3,5 Ricinus Communis Seed Oil 1 0,8 1,5 1,2 Glyceryl Stearate Citrate 1,75 2,8 1 1,3 1,5 Glycerin+Aqua 5 8 12 6 2 Methylpropanediol 2,8 3,5 4 2 3,75 Caprylyl Glycol+Aqua 0,25 0,1 0,15 0,05 Aqua+Sodium Hydroxide 0,1 0,3 0,5 0,2 0,05 Phenoxyethanol+Aqua 0,54 0,49 0,8 0,6 0,7 Cetearyl Alcohol 3,5 3 2 3,6 4,2 Stearyl Alcohol 1,8 2 1,4 2,5 1 Distarch Phosphate 0,5 Carrageenan 0,15 0,1 Xanthan Gum 0,15 0,1 0,3 0,25 0,5 Aqua to 100 to 100 to 100 to 100 to 100 QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] EP 3 093 007

[0025]

Claims

[1] Cosmetic preparation containing a) Glyceryl Stearate Citrate (INCI: Glyceryl Stearate Citrate), b) Acetylhydroxyproline (INCI: Acetyl Hydroxyproline). [2] Method for reducing sand adhesion to a cosmetic preparation containing glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) wherein acetyl hydroxyproline (INCI: Acetyl Hydroxyproline) is added to the preparation. [3] Use of acetylhydroxyproline (INCI: Acetyl Hydroxyproline) in cosmetic preparations containing glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) to reduce sand adhesion. [4] Preparation, method or use according to any of the preceding claims, characterized by that the preparation is in the form of an oil-in-water emulsion. [5] Preparation, method or use according to any of the preceding claims, characterized bythat the preparation contains glyceryl stearate citrate (INCI: Glyceryl Stearate Citrate) in a concentration of 1.0 to 3.0% by weight, based on the total weight of the preparation. [6] Preparation, method or use according to any of the preceding claims, characterized by , that the preparation contains acetylhydroxyproline (INCI: Acetyl Hydroxyproline) in a concentration of 0.01 to 1.2% by weight, based on the total weight of the preparation. [7] Preparation, method or use according to any of the preceding claims, characterized by that the preparation contains one or more polymers selected from the group of compounds xanthan gum (INCI: Xanthan Gum), distarch phosphate (INCI: Distarch Phosphate) and carrageenan. [8] Preparation, method or use according to any of the preceding claims, characterized bythat the preparation contains xanthan gum (INCI: Xanthan Gum) in a concentration of 0.1 to 0.6 wt%, based on the total weight of the preparation. [9] Preparation, method or use according to any of the preceding claims, characterized by that the preparation contains one or more fatty alcohols selected from the group of compounds cetyl alcohol (INCI: Cetyl Alcohol), stearyl alcohol (INCI: Stearyl Alcohol), cetearyl alcohol (INCI: Cetearyl Alcohol), behenyl alcohol (INCI: Behenyl Alcohol). [10] Preparation, method or use according to any one of the preceding claims, characterized by that the preparation contains stearyl alcohol (INCI: Stearyl Alcohol) in a concentration of 1.0 to 3.0% by weight, based on the total weight of the preparation. [11] Preparation, method or use according to any of the preceding claims, characterized bythat the preparation contains one or more glyceride esters selected from the group of compounds coco glycerides (INCI: Coco Glycerides), hydrogenated coco glycerides (INCI: Hydrogenated Coco Glycerides) and caprylic / capric triglycerides (INCI: Caprylic / Capric Triglycerides). [12] Preparation, method or use according to any one of the preceding claims, characterized by that the preparation contains coconut glycerides (INCI: Coco Glycerides) in a concentration of 2.0 to 5.0% by weight, based on the total weight of the preparation. [13] Preparation, method or use according to any of the preceding claims, characterized by , that the preparation contains hydrogenated coco glycerides (INCI: Hydrogenated Coco Glycerides) in a concentration of 2.0 to 5.0% by weight, based on the total weight of the preparation. [14] Preparation, method or use according to any of the preceding claims, characterized bythat the preparation contains caprylic / capric triglycerides (INCI: Caprylic / Capric Triglycerides) in a concentration of 2.0 to 6.0% by weight, based on the total weight of the preparation. [15] Preparation, method or use according to any of the preceding claims, characterized by , that the preparation is free from polyacrylates (INCI: Carbomere), 2-ethylhexyl 2-hydroxybenzoate (INCI: Ethylhexyl Salicylate) and 3,3,5-trimethylcyclohexyl 2-hydroxybenzoate (INCI: Homosalate), 3-(4-methylbenzylidene)-camphor, 2-hydroxy-4-methoxybenzophenone (INCI: Oxybenzone), ethylhexyl 2-cyano-3,3-diphenyl acrylate (INCI: Octocrylene), 2-ethylhexyl 3-(4-methoxyphenyl)prop-2-enoate (INCI: Ethylhexyl Methoxycinnamate), polyethylene glycol, polyethylene glycol ethers and polyethylene glycol esters (so-called PEG derivatives), parabens, methylisothiazolinone, chloromethylisothiazolinone and DMDM ​​hydantoin.