WO2022050871A1

WO2022050871A1 - Cosmetic preparation containing dissolved hydrogen and method for producing same

Info

Publication number: WO2022050871A1
Application number: PCT/RU2021/050191
Authority: WO
Inventors: Вячеслав Валентинович ЛАПАЧЕВ
Original assignee: Вячеслав Валентинович ЛАПАЧЕВ
Priority date: 2020-09-02
Filing date: 2021-06-30
Publication date: 2022-03-10
Also published as: RU2747334C1

Abstract

A cosmetic preparation containing dissolved hydrogen and a method and device for producing same relate to cosmetics manufacturing and can be used to make hydrogen-saturated cosmetic compositions, which comprise water, surface-active agents (surfactants) and other cosmetic ingredients. The purpose of the claimed invention is to provide hydrogen-containing cosmetic compositions with a higher hydrogen concentration (in comparison to hydrogen water), which concentration is preserved during all the lifetime stages of the product, including the manufacturing, storage and use of the cosmetic preparation. The technical result of the claimed invention is the increased hydrogen concentration in the cosmetic composition and the preservation of the hydrogen concentration during the storage of the cosmetic products as well as during their use by a consumer. Thus, the claimed technical result is achieved by means of a cosmetic preparation that includes water, cosmetic ingredients, hydrogen and an easily liquefiable propellant or mixture of propellants, and during production of which hydrogen gas and the easily liquefiable propellants are injected under pressure into an airtight container that already contains a pre-prepared mixture of water and cosmetic ingredients.

Description

COSMETIC PRODUCT CONTAINING DISSOLVED HYDROGEN AND ITS PRODUCTION

Technical field

[001] The invention relates to cosmetic production and can be used to create hydrogen-saturated cosmetic compositions containing water, surfactants, and other cosmetic ingredients. Such compositions may be used as detergents and other cosmetics such as foams, gels, shaving creams, liquid soaps, shampoos and other hair and body washes and care products.

State of the art

[002] In recent years, various effects of the positive effect of dissolved hydrogen gas on skin condition have been found, and its high antioxidant activity has been established (Fundamental Introduction to Hydrogen Water Methodology in Biological Research. Authors: Li, Qiang; Asada, Ryoko; Tanaka, Yoshiharu; Miwa, Nobuhiko, Source: Journal of Nanoscience and Nanotechnology, Volume 17, Number 7, July 2017, pp. 5134-5138).

[003] Antioxidant activity is an important characteristic of the quality and value of cosmetic compositions. An increase in the antioxidant activity of the compositions leads to an increase in their reducing properties and the ability to react with reactive oxygen species and radicals attacking cell membranes, tissue proteins, enzymes and DNA. Numerous studies have shown that hydrogen has anti-inflammatory, antitumor effects, and can prevent radiation and ultraviolet damage to the skin. With this in mind, the consumption of hydrogen-saturated drinking water is expanding, and more and more hydrogen-enriched cosmetics, called "hydrogen cosmetics", are appearing. Hydrogen water, hydrogen masks, hydrogen creams and other products are known on the market. Below are a number of patented technical solutions related to cosmetic compositions saturated with hydrogen, including those containing surfactants.

[004] A technical solution disclosed in the patent application for invention JP 2015188857 A (IPK A61K 33/00, A61K 9/72, A61P 39/06, B01F 13/08, B01F 15/02, B01F 3/04, B01F 5/06, B01F 5/10, B01F 7/16, B01F 7/28, C02F 1/68; published 02.11.2015) Hydrogen Water with Nanoscale Hydrogen Bubbles and Foam Production System with hydrogen", which is a hydrogen gas generator for producing hydrogen gas by contacting an element such as a metal that forms hydrogen gas when in contact with a liquid, the liquid is water or an aqueous solution contained in this generator and a sealed container with an outlet for purging hydrogen gas through the liquid through a porous plate, a stirrer to evenly distribute the hydrogen gas contained in the liquid by stirring it inside the sealed vessel, circulating the supplied hydrogen gas from the bottom of the closed vessel back into the liquid, or hydrogen bubbles remaining in the upper part of the sealed container to form hydrogen water with nanoscale hydrogen bubbles.

[005] Like other options based on saturation of water or aqueous solutions, this technical solution has a number of disadvantages, namely, low concentrations of hydrogen gas in the resulting cosmetic composition (no more than 0.0002%, 2 ppm, or about 2 milliliters of hydrogen gas per 100 water). In addition, the problem of maintaining the concentration of hydrogen remains unresolved, that is, this cosmetic composition will lose its antioxidant properties over time.

[006] A technical solution disclosed in patent application CN 106265240 A (MIC A61K 8/02, A61K 8/04, A61K 8/19, A61K 8/25, A61K 8/65, A61K 8/73, A61K 8/ 92, A61K 8/97, A61Q 17/04, A61Q 19/00, A61Q 19/08; published on 01/04/2017) "Hydrogen-containing gel mask", which is a cosmetic composition with increased antioxidant activity, namely a gel mask containing hydrogen, powdered agent A and gelled agent B: powdered agent containing the following mass percentages of constituent components: potassium carbonate - 0.01-5%, sunflower oil - 0.1-10%, magnesium - 0.1-5%, hydrogen - O.OOOGO.5 %, silicon dioxide - 0.1-5%, buffer pH 0.0001-0.05%, the balance is replenished with corn starch to reach 100%; gel agent B containing the following mass percentages of ingredients: pharmaceutical polyhydric alcohol moisturizers - 1-20%, thickener - 0.05%-0.001%, active additive - crystalline cosmetic carrier - 0.1-5%, the balance is replenished with water to reach 100%.

[007] This technical solution has a number of disadvantages, namely the complexity of manufacturing a cosmetic composition, as well as the complexity of controlling the decrease in the concentration of hydrogen in a cosmetic composition placed in a disposable package. [008] Obtaining hydrogen water containing antioxidants is given in the application for a patent for the invention WO 2017030467 A1 (IPC A61K 33/00, A61K 9/12, A61P 17/18; published on February 23, 2017) "Hydrogen cocktail with increased antioxidant activity" . The cocktail is a mixture containing pure water, hydrogen dissolved in it under pressure and a nutritional supplement - an antioxidant. The authors of the patent set a goal to increase the redox potential of the previously obtained hydrogen water and achieved this by adding an additional antioxidant. At the same time, the antioxidant is added in a minimal amount so as not to change the organoleptic properties of water, which is important for the resulting drink. The composition has increased antioxidant activity (redox potential from minus 600 to minus 50 mV), and the authors state that the product can be used directly as a drink or can be used in the production of soft drinks and cosmetics with increased antioxidant activity.

[009] This aqueous hydrogen cocktail was obtained by a traditional method similar to the production of hydrogen water. Pure water with an antioxidant dissolved in it is bottled into standard polyethylene terephthalate (PET) bottles with a volume of 0.5 to 2 liters, saturated in them with hydrogen under pressure using a device for carbonation and liquid capping. In addition, it is also proposed that an aqueous hydrogen cocktail with an antioxidant already prepared in this way can be packaged in aerosol cans, where the propellant (a substance that creates pressure inside the aerosol can to displace the product from the package) is hydrogen gas.

[0010] However, it is known that packaging in aerosol cans with hydrogen as a propellant has serious drawbacks and is technically difficult. Hydrogen belongs to the group of low-boiling gases that are difficult to liquefy (air, nitrogen, hydrogen, and others), the disadvantages of which as propellants are well known (an increased volume of the cylinder, increased pressure is required, it is difficult to ensure the complete release of the product from aerosol packages). In view of this, its use as a propellant is very difficult and practically does not occur, which explains the extremely rare (unknown to us) use of hydrogen as a propellant in aerosol cans. In addition, the use of hydrogen as the main propellant has the additional disadvantage of being explosive. Naturally, such a danger increases many times over if a canister of hydrogen is used at elevated pressure inside the container. [UN] A method for solving the problem of increasing the concentration of hydrogen and maintaining hydrogen in water and cosmetic compositions is discussed in the international application PCT/IB2017/001067 (publication: W02018011634A1, priority date: 07/15/2016).

[0012] The authors, with reference to the regulatory authorities of Japan, give an example that at the time of sale, the declared concentration of hydrogen in many compositions is not maintained or even close to zero. The authors propose a special composition in the form of a tablet, which contains metallic magnesium, a water-soluble acid and a binder, the composition may also include a lubricant. The tablet releases hydrogen when in contact with water, which makes it possible to prepare highly saturated hydrogen water shortly before its use, and thus maintain hydrogen saturation for the consumer. The tablet is proposed to be placed in water, which water may also contain other ingredients such as fruit juice, carbonated water or dissolved solids such as table sugar or salt. The disadvantage of this method is that self-preparation of the hydrogen composition for many consumers is an inconvenience. At the same time, the use of the proposed tablets in the case of standard ready-made cosmetic packages (tubes, bottles, jars, aerosol cans) is difficult or technically impossible.

[0013] Summarizing the above data shows that hydrogen cosmetics, as a rule, are prepared on the basis of hydrogen water, the commercial industrial production of which is widely mastered. The range of products on the market is quite small, there are practically no detergent compositions. Meanwhile, soaps, shampoos, and other cosmetics containing surfactants (hereinafter referred to as “surfactants”) most often come into contact with the skin of the face and body, since many of them are everyday products.

[0014] The production of hydrogen cosmetics based on hydrogen water has disadvantages:

[0015]- The solubility of hydrogen gas in water is very low. If cleaning compositions with hydrogen are obtained on the basis of a standard scheme (that is, based on hydrogen water), then, due to the low solubility of hydrogen in water, the concentration of hydrogen in cosmetics obtained from it will also remain low.

[0016]-hydrogen easily diffuses and evaporates from the water layer, i.e. the concentration of hydrogen will decrease even more due to its loss in the process of technological operations for the preparation of a cosmetic product, [0017] - after product manufacture and subsequent pre-sale storage, the decrease in hydrogen concentration will continue, since it has exceptional penetrating power and erodes through plastic, plugs, valves, and so on,

[0018] - the hydrogen evaporation process will accelerate even more after the start of using the cosmetic product due to repeated opening (depressurization) and closing of the package with the cosmetic product. As a result, a cosmetic product saturated with hydrogen at the beginning of production may end up without an active substance during use and become of little use.

[0019] Thus, in the production of hydrogen-containing compositions, increasing the concentration of hydrogen in a cosmetic product and maintaining the hydrogen content during the production of the product, during storage of the product and at the stage of its use is an urgent and significant technical problem.

The essence of the invention

[0020] The objective of the claimed invention is the creation of hydrogen-containing cosmetic compositions with an increased (compared to hydrogen water) hydrogen concentration, which is maintained at all stages of the product's life, including the production, storage and use of a cosmetic product.

[0021] The technical result of the claimed invention is to increase the hydrogen concentration in the cosmetic composition and maintain the hydrogen concentration during storage of cosmetic products, as well as at the stage of its use by the consumer.

[0022] The proposed solution is based on the fact that not the source water is subjected to hydrogen saturation, but the final cosmetic composition, placing it in a sealed vessel under pressure of a mixture consisting of at least two components, one of which is hydrogen, the second is light room temperature liquefiable propellant such as isopentane, isobutane, and the like. This combination makes it possible to increase the concentration of hydrogen in the composition, preserve hydrogen during storage and use, and reduce the pressure of the propellant when packaged in aerosol cans.

[0023] Thus, the claimed technical result is achieved in that the cosmetic product includes water, cosmetic ingredients, hydrogen, an easily liquefiable propellant or a mixture of propellants, upon receipt of which hydrogen gas and easily liquefiable propellants are introduced under pressure into a sealed container containing a pre-prepared mixture water and cosmetic ingredients. The manufacture of a cosmetic product consists in the preparation of an aqueous cosmetic composition by mixing the components, placing the composition in a sealed container and closing it with a valve, adding an easily liquefied propellant or a mixture of propellants through the valve, adding hydrogen gas through the valve, to the required pressure.

[0024] Cosmetic ingredients may include surfactants.

[0025] Easily liquefied propellant can be used both in liquid state, the most common way to achieve a liquid state is cooling to a temperature below the boiling point. Or in a gaseous state.

[0026] As easily liquefiable propellants, isobutane or isopentane or a mixture thereof can be used.

[0027] Neutral gases can be included in easily liquefied propellants. [0028] It is possible to perform a cosmetic product in such a way that the cosmetic ingredients of the composition are selected in accordance with the standards of the respective formulations to form a product from the series: liquid soap, shampoo, shaving foam, shaving gel, shower gel, cream, balm, tonic, micellar water.

[0029] The technical result is also achieved by making a sealed container with the declared cosmetic made of metal or composite materials, containing a valve. At the same time, the sealed container may have an additional internal protective coating that is resistant to hydrogen.

[0030] The most common type of sealed cosmetic container may be the well-known aerosol can.

[0031] The technical result can also be achieved by a method for obtaining the claimed cosmetic product, including at least the following operations:

[0032] a) preparing an aqueous cosmetic composition,

[0033] b) placing the composition in a sealed container and closing it with a valve, [0034] c) adding an easily liquefiable propellant or mixture of propellants through the valve,

[0035] d) adding hydrogen gas through the valve to the required pressure.

[0036] In the manufacture of a cosmetic product, the addition of propellants and hydrogen gas in a premix may be added to the cosmetic composition at the same time.

[0037] In the manufacture of a cosmetic product, a neutral gas can be added to the composition of easily liquefied propellants. [0038] In the manufacture of a cosmetic, the readily liquefiable propellant or mixture of propellants may be added in a liquefied or gaseous state.

[0039] In the manufacture of a cosmetic product, isobutane or isopentane, or a mixture thereof, can be used as an easily liquefied propellant.

[0040] In the manufacture of a cosmetic product, easily liquefiable propellants can be pumped up to a pressure in the range of 1.5 - 10 atmospheres.

[0041] In the manufacture of a cosmetic product, hydrogen gas can be pumped up to a pressure in the range of 1.5 to 10 atmospheres.

Trial description of the claimed solution

[0042] In the following detailed description of an implementation of the invention, numerous implementation details are provided to provide a clear understanding of the present invention. However, one skilled in the art will appreciate how the present invention can be used, both with and without these implementation details. In other cases, well-known methods, procedures, and components are not described in detail so as not to unduly obscure the features of the present invention.

[0043] In addition, from the foregoing it is clear that the invention is not limited to the above implementation. Numerous possible modifications, alterations, variations, and substitutions that retain the spirit and form of the present invention will be apparent to those skilled in the art.

[0044] As follows from the described prior art, in most cases, hydrogen-saturated water is used as the initial hydrogen-containing component in cosmetic compositions. This is largely due to the fact that the production of such water and related equipment has been mastered on an industrial scale. The experimentally measured solubility of hydrogen in water is very low, which corresponds to the well-known physical regularity: gases in which the molecule is polar dissolve better in polar liquids and vice versa. Due to the fact that the hydrogen molecule is non-polar (the dipole moment is close to zero), and water is one of the most polar solvents (the dipole moment is 1.84 D), the solubility of hydrogen in it is extremely low (about 2 ppm or 2 ml of H2 per 100 ml of water , "Brief reference book of physical and chemical quantities", edited by K.P. Mishchenko and A.A. Ravdel, L.: Chemistry, 1974, p. 95).

[0045] It is known that organic molecules can exhibit a greater affinity for hydrogen. For example, if the nonpolar solvent toluene acts as a solvent, the equilibrium concentration of dissolved hydrogen in it can increase order and higher, for toluene - 15 times higher with respect to water (“Phase equilibria in multicomponent systems” Authors: V. Barabanov, G. Bulidorova, Yu. Galyametdinov, V. Proskurina, X. Yaroshevska, Ministry of Education and Science of Russia , year 2014). Meanwhile, most surfactants and other traditional cosmetic additives (surfactants, long-chain alcohols, fats, oils, propellants, isopentane) belong to different classes of organic compounds and have much less polarity than water (Exper O., Dipole moments in organic chemistry, Thieme, Stuttg., 1975.). It should be noted that the content of such substances in aqueous cosmetic compositions is quite high and can reach 20–50% at the end of the technological chain, and 50–80%, taking into account the weight of propellants. Consequently, cosmetic compositions, as low-polarity and organic ingredients are added, show an increasing affinity for hydrogen, when compared with the original water.

[0046] With this in mind, hydrogen saturation of the final cosmetic composition is more preferable compared to the option of hydrogen saturation of the original polar water, since there is a possibility of a strong increase in the hydrogen concentration (5-10 times) in the cosmetic product (effect 1).

[0047] Having obtained a highly concentrated solution of hydrogen in a cosmetic composition, care must be taken to maintain the hydrogen content and effectiveness of the cosmetic product throughout the life cycle of the product from receipt to end of use. To prevent evaporation of hydrogen during the preparation of a cosmetic surfactant composition, during its storage and use by the consumer, it is advisable to pack the finished product in sealed vessels under pressure of a gas mixture containing hydrogen. At the beginning of the technological chain of production, various metal or composite cylinders for storing and transporting hydrogen, which have been well mastered in industrial production in recent years, can be used as technical containers for the manufacture and storage of a hydrogen-saturated cosmetic composition. In the final stage of production, where hydrogenated cosmetics are packaged for the market, any container of known design, such as a standard aerosol can, can be used as a container. For poorly soluble gases at a relatively low pressure, the following relationship is known (Henry's law): the amount of gas dissolved at a given temperature in a certain volume of liquid is directly proportional to the gas pressure. Thus, the rise in hydrogen pressure above the surface cosmetic composition up to 2 - 6 atmospheres will lead to an additional increase in the amount of equilibrium dissolved hydrogen approximately 2 - 6 times (effect 2). Accordingly, the simultaneous use of the two effects 1 and 2 makes it possible to greatly increase the concentration of hydrogen in the cosmetic composition in the range of 10 to 60 times.

[0048] However, as noted above, the use of hydrogen gas as a propellant is very problematic. Specialists separate hydrogen into a group of hardly liquefiable, poorly soluble gases - propellants (air, nitrogen, hydrogen, and others) with a very low boiling point (minus 180 - minus 260 degrees C). They have characteristic disadvantages - they are difficult to liquefy, require a large volume of the cylinder, high pressure and do not provide a complete release of the product from aerosol packages. When they are consumed during use, the pressure in the can drops and can equalize with atmospheric pressure before all the product is expelled.

[0049] To overcome this, it is proposed to use a multicomponent mixture consisting of at least two components.

[0050] The first in the mixture is the hydrogen discussed above, which maintains a high concentration of hydrogen in the cosmetic composition, serving as an active cosmetic ingredient. The free, unoccupied volume of a conventional container, for example, is 50 - 100 ml. When filling the free volume with hydrogen, such a volume far exceeds the minimum volume of hydrogen required for saturation (for example, 2 ml per 100 ml of water) and can provide multiple over-saturation of the cosmetic composition.

[0051] As an auxiliary component that will ensure the displacement of the cosmetic product from the aerosol can, the present invention proposes to use easily liquefied propellants known in the industry. Easily liquefiable propellants in the present application means a propellant or a mixture of propellants from the group of substances that easily become liquid even at room temperature under the influence of a small pressure of 1.5 to 10 atmospheres. This pressure indicator is not mandatory, since under other conditions the technical result can be achieved. This ease of liquefaction usually correlates with much higher boiling points than hydrogen (hydrogen bp minus 253°C). Known and widely used propellants of this kind are compounds of the hydrocarbon group (general formula SpH2n + 2, where n is the number of carbon atoms, for example, isopentane, bp. 28 C, isobutane, bp -11 C), dimethyl ether, bp. -24 C, a large group of freons and other relatively high-boiling gases that easily liquefy at room temperature under pressure. The positive properties of such propellants are that a propellant that is easily liquefied at elevated pressure occupies a much smaller volume compared to a gaseous one (hundreds of times), so its content in a vessel can be excessive and reach 30-50% by weight or more, which ensures 100% delivery of the product from the can at a relatively low pressure. As the contents of the package are used up, the resulting lack of propellant in the gas phase is constantly replenished due to the evaporation of the liquid fraction of the propellant, which ensures a stable pressure in the can and the necessary characteristics of the cosmetic product throughout the use of the package. As a result, the propellants of this group provide 100% delivery of the product from the can, and at a relatively low operating pressure of about 6 atm. and less. ("Modern aerosol packaging - metal cans" Journal Raw materials and packaging No. 4 (43), Aerosols. Journal Raw materials and packaging No. 10 (29), https://cosmetic-

Easily liquefiable propellants such as isopentane and isobutane are also convenient in that they are easy to dose and apply to the canister in a liquid state. Such an operation has long been mastered in industry and is used in modern automatic lines for filling aerosol cans. At the beginning of the technological chain of production, various metal or composite cylinders for storing and transporting hydrogen, which have been well mastered in industrial production in recent years, can be used as technical containers for the manufacture and storage of a hydrogen-saturated cosmetic composition. Container materials should be selected from stable hydrogen compatible materials such as steel, aluminium, zinc and silver plated materials, and others already known to the state of the art. In the next step, where the final product is packaged for the market, an aluminum or steel (coated or uncoated) container of known design, such as an aerosol can, can be used as a container for hydrogen-containing cosmetics with a mixture of hydrogen-containing propellants.

[0052] The claimed invention is illustrated in Fig.1, which shows a sealed container with the claimed cosmetic composition.

[0053] The container, which is represented by a standard aerosol can, consists of a strong sealed housing 1, which is usually able to withstand pressure approximately in the range of 2 - 10 atmospheres and valve 2, when pressed, the cosmetic is squeezed out and exits through the tube 3 from the container.

[0054] In this case, the container will naturally divide into two volumes A, B. In its first part (A) there is a gas phase, that is, a mixture of gaseous propellants and hydrogen, which is an active antioxidant component of the cosmetic composition. In the gas volume, hydrogen will prevail due to the extremely low boiling point (minus 253 degrees C). The second part (B) contains the liquid phase, which contains the cosmetic composition saturated with hydrogen and the liquefied part of the propellant. The liquid phase can also be two-layered (not shown in the figure), since many easily liquefied propellants are hydrocarbons (pentane, butane) and practically do not mix with the aqueous phase in which the cosmetic composition is distributed. In practice, the proportions of the added propellant in the cans may be in the range of 20 to 80 weight percent relative to the weight of the original composition. Increased proportions of propellant are characteristic of medical compositions, while cosmetic compositions usually contain less propellant. Most of the easily liquefiable propellant is in the liquid phase (B), is released from it as the cosmetic composition is consumed, passing into the gas part A and thus maintaining the pressure of the propellant mixture. At the same time, a large excess of hydrogen will constantly saturate the cosmetic composition, compensating for the evaporation of hydrogen during storage and opening the valve when using the product.

[0055] An estimate of the minimum proportions of hydrogen, confirmed by experimental data, shows that for a cosmetic composition with a volume of 100 ml in a 200 ml can, only 2 ml of hydrogen is needed to achieve a concentration equivalent to "hydrogen water" (in 100 ml of which only about 2 ml of hydrogen). To estimate the maximum possible volume of hydrogen in the cylinder, let us assume for simplicity that the maximum possible volume of hydrogen at atmospheric pressure in the cylinder corresponds to the volume of sector A of the cylinder (Fig.), i.e. 100 ml. (fifty-fold excess). If, however, we take into account that hydrogen can be pumped at an increased pressure (2–6 atmospheres), then, accordingly, the maximum possible volume of hydrogen will increase by a factor of approximately 2–6 times, i.e. up to 200 - 600 ml of hydrogen when referred to normal pressure. Thus, in standard volumes of aerosol cans, it is technically easy to achieve a multiple (hundreds of times) excess of hydrogen, sufficient to saturate the cosmetic composition in an increased concentration, far exceeding that for hydrogen water. At the same time, when pumping hydrogen at at elevated pressure, it also begins to act as a propellant, although the main propellant will remain a fraction of easy-boiling propellants such as butane due to the effect of the liquid-gas phase transition described above.

[0056] It has been experimentally found that the possibility of such a multiple excess of hydrogen has important consequences for the technology of manufacturing the product. It is a large excess of hydrogen, which is possible even for a standard volume of the cartridge, which opens up the possibility for the manufacture of the final hydrogen-containing product without prior separate hydrogenation of the cosmetic composition as a separate technological operation. In our version, a cosmetic hydrogen-containing composition is obtained by conventional packaging of a prepared cosmetic composition (for example, an aqueous mixture of surfactants and other necessary components without hydrogen) into aerosol cans, followed by pumping the multicomponent mixture of hydrogen and propellants proposed by us above (for example, hydrogen, and an easily liquefied propellant isopentane in the approximate ratio of 0.05 g of hydrogen and 10 g of isopentane). The hydrogen introduced into the can initially enters zone A (gas phase) and then, due to its exceptional penetrating ability, quickly saturates the cosmetic composition in zone B.

[0057] The technological scheme for the manufacture of a cosmetic surfactant composition saturated with hydrogen in aerosol cans consists of the following main operations.

[0058] 1. Preparation of an aqueous cosmetic composition by standard methods by mixing the components

[0059]2. Packing the composition in sealed containers, such as aerosol cans, technological vessels, cylinders.

[0060] 3. Addition of an easily liquefiable propellant, such as isobutane and isopentane or a mixture thereof, in the range of 30-80% by weight of the cosmetic composition until a pressure of 1.5-10 atmospheres is reached. This pressure range is most commonly used for various aerosol cosmetics that are squeezed out of a can in the palm of your hand and then used for further procedures.

[0061] 4. Adding hydrogen gas to the required pressure (typically, but not necessarily 1.5 to 10 atmospheres) and sealing the can. This increased pressure allows larger areas of skin to be quickly covered and treated, for example in the case of a massage or shower.

[0062] Steps 3 and 4 can be combined using a pre-mixed propellant mixture with a calculated hydrogen content. [0063] Stage 1 involves the preparation of the final cosmetic composition with all the necessary ingredients except hydrogen. Such a stage may include operations known from the prior art that are typical for cosmetic production (mixing ingredients, heating, filtering, and others). Stages 2-4 are also widely used in the industry on automated lines for filling and sealing aerosol cans. Any equipment known in the art can be used to fill them, usually with a large number of options and settings to adapt to any particular product. In view of this, the present invention opens up wide possibilities for the production of a variety of hydrogen-saturated cosmetics, including detergents, cosmetic masks, creams, balms, tonics. In each individual case, the manufacturing scheme proposed above, while maintaining the basic essence, can be supplemented and modified taking into account the production of a specific hydrogen-containing cosmetic product. Hydrogen is distinguished by an exceptionally high diffusion rate in liquids and is able to quickly penetrate thin polymer (and even metal) films. So, for example, when obtaining hydrogen water, hydrogen, even at atmospheric pressure, reaches equilibrium and saturation in a day or less, and under pressure in a few minutes. Since the typical time between product packaging and sale is much longer than a day, the step of hydrogenating the cosmetic composition in an aerosol can will not cause any negative commercial consequences. Aerosol cans allow rotation and shaking, which will enhance the mixing of the phases and additionally accelerate the diffusion of hydrogen into the liquid medium. A possible pressure drop in the canister caused by the escape of hydrogen into the liquid phase of the composition is immediately compensated by the transition of an easily liquefied propellant into the gas phase. Similarly, the proposed process occurs when packaging cosmetic products in other types of cans. For example, in cans with an internal valve package, the cosmetic composition can be separated from the propellant by a thin polymer film, which will only slow down, but not stop, the diffusion of hydrogen and the saturation of the liquid phase with hydrogen.

[0064] According to the claimed invention, after the standard operations of filling and sealing the can, due to the rapid diffusion of hydrogen gas into the liquid phase (cosmetic composition), there is a rapid saturation of the cosmetic composition with hydrogen to the equilibrium content of dissolved hydrogen. In this case, due to the large excess of gaseous hydrogen, a significant part of it after saturation will remain in the gas phase above the cosmetic composition. This allows maintain saturation of the cosmetic composition with hydrogen during storage and use.

[0065] It has already been noted above as a disadvantage for hydrogen that it is highly explosive. To reduce the fire hazard, you can reduce its amount or dilute it with some neutral (inert, non-combustible) gas, since it is known that the chemical chain reaction of combustion and explosion of hydrogen is blocked and slowed down by such molecules. It is preferable to use a slightly soluble gas (for example, nitrogen, argon) as a neutral gas, so that it does not pass into the liquid phase, but remains in the gas phase and reduces the fire hazard of the gas mixture in the event of a leak. Such a technical possibility of adding a neutral inert gas exists, since, as noted above, a large excess of hydrogen is possible in the volume of an aerosol can. Thus, "dilution" of hydrogen by half when using a mixture of propellants "hydrogen - nitrogen" in the ratio 1 1 will retain a multiple excess of the hydrogen content in relation to its content in hydrogen-saturated water. Thus, an additional substance that is part of a multicomponent mixture of propellants can be, in particular, a neutral gas (for example, nitrogen, argon, and others), which will help reduce the fire and explosion hazard of the product. Of course, you can use other non-flammable gases (for example, new atmosphere-friendly freons), which will improve the properties of the propellant mixture and cosmetic composition.

[0066] The present invention is applicable to the production of a broad class of hydrogen-based surfactant cosmetics in which the cosmetic ingredients are organic molecules of less polarity than water. Modern synthetic surfactants (derivatives of fatty acids, alkyl sulfates, alkyl glucosides, carboxyethoxylates) are mostly organic molecules, the presence of which in the composition will increase the hydrogen concentration. Surfactants are part of a large group of cosmetic products (liquid soaps, shampoos, shower and bath gels, foams, shaving gels and creams, and others), the beneficial properties of which can be enhanced by the addition of hydrogen gas in an increased concentration compared to hydrogen water.

[0067] The selection of cosmetic formulations that correspond to the chosen form of a cosmetic product, in most cases, is routine at the current technical level. For the group of surfactant-containing cosmetic compositions, it is characteristic that even a slight change in the composition of additives can lead to construction of various cosmetics, in commercial form corresponding to liquid soap, shampoos, shower gel, etc. So, for hydrogen-containing shaving foam, it is necessary to use foaming additives, as well as foam stabilizers, moreover, cans with a special foaming head are used to dispense foam. If, however, wound healing and nourishing additives are added to this cosmetic mixture with surfactants and an aerosol can with reduced pressure is used, then an appropriate “after shave” cream can be obtained.

[0068] From the point of view of industrial applicability, the invention proposed by us allows:

[0069] 1) to obtain cosmetic compositions with surfactants with a high content of hydrogen by saturating the final cosmetic composition with hydrogen in a pressurized canister of a mixture of propellants containing at least hydrogen and easily liquefied propellants such as isobutane, isopentane, freon

[0070] 2) reduce the capital cost of production, since for the manufacture of such hydrogen-containing cosmetic products, it is not necessary to develop special production lines from scratch. Modern lines for the production of aerosol cosmetic compositions have a wide range of settings and modifications. Therefore, the production process of the hydrogen cosmetics we offer can take place with little modification or even adjustment of existing aerosol lines and will not require large costs. All this in sum means that the invention is industrially applicable.

[0071] The present application materials provide a preferred disclosure of the implementation of the claimed technical solution, which should not be used as limiting other, private embodiments of its implementation, which do not go beyond the scope of the requested legal protection and are obvious to specialists in the relevant field of technology.

Examples of the implementation of the invention

[0072] Standard 200 ml aerosol cans and a laboratory aerosol can filling and sealing machine, which are widely available on the market, were used in the preparation of samples of hydrogen-containing cosmetics. The canister and propellants were used chilled to avoid problems due to violent boiling and vaporization of the propellants. Hydrogen concentration in ppm (concentration expressed in parts per million) was measured with a portable hydrogen meter. Before sampling, a ready-made container with hydrogen-containing agent was kept for 3-5 days at room temperature, after which the pressure was released by turning the can with the valve down.

[0073] A 10 ml sample or a 1 ml sample was taken for measurement and diluted 10 times with distilled water. The results of the five measurements were averaged, the excess of hydrogen concentration compared to hydrogen-saturated water was compared, and the excess coefficient was obtained.

[0074] Example 1.

[0075] a) 50 g of shower gel was added to a 200 ml aerosol can and cooled to minus 20°C in a refrigerator.

[0076] b) 30 g of liquefied propellant (isobutane 98%) was added, closed with a valve and hydrogen was pumped through the valve to a pressure of 4 atmospheres.

[0077] Hydrogen content 16(ppt) (+ - 2), excess factor 8 [0078] Change in hydrogen content in the gel after 1, 3 and 12 months of storage and use, ppm

[0079] Example 2 a) 50 g micellar water (contains 75% water and 25% cosmetic ingredients) was added to a 200 ml aerosol can and cooled to minus 20 C in a refrigerator.

[0080] b) 30 g of propellant (isobutane 98%) was added, closed with a valve and hydrogen was pumped through the valve to a pressure of 2 atmospheres.

[0081] Hydrogen content 6 ppm (+ - 1), excess factor 3

[0082] Change in hydrogen content in micellar water after 1, 3 and 12 months of storage and use, ppm

[0083] Example 3 a) 50 g of shampoo was added to a 200 ml aerosol can and cooled to minus 20°C in a refrigerator. [0084] b) 30 g of propellant (isobutane 98%) was added, closed with a valve and hydrogen was pumped through the valve to a pressure of 4 atmospheres.

[0085] Hydrogen content 16 (+ - 2), excess factor 8

[0086] Change in hydrogen content in shampoos after 1, 3 and 12 months of storage and use, ppm

[0087] Example 4 a) 50 g of liquid soap was added to a 200 ml aerosol can and cooled to minus 20°C in a refrigerator.

[0088] b) 30 g of propellant (isobutane 98%) was added, closed with a valve and hydrogen was pumped through the valve to a pressure of 4 atmospheres.

[0089] Hydrogen content 29 (+ ■■ 2), excess factor 14.5

[0090] Change in hydrogen content in liquid soap after 1, 3 and 12 months of storage and use, ppm

[0091] Example 5 a) 50 g of liquid soap was added to a 200 ml aerosol can and cooled to minus 20°C in a refrigerator.

[0092] b) 30 g of Propel anap propellant (dimethyl ether 99.9%) was added, valved, and hydrogen was pumped through the valve to a pressure of 4 atmospheres.

[0093] Hydrogen content 18 (+ - 2 ), excess factor 9

[0094] Change in hydrogen content in liquid soap after 1, 3 and 12 months of storage and use, ppm

[0095] Example 6 a) 50 g of liquid soap was added to a 200 ml aerosol can and cooled to minus 20°C in a refrigerator.

[0096] b) added 30 g of hydrocarbon propellant HVA U (isobutane, propane, n-butane of the highest grades - 98%), closed the valve and pumped hydrogen through the valve to a pressure of 4 atmospheres.

[0097] Hydrogen content 16 (+ - 2), excess factor 8

[0098] Change in hydrogen content in liquid soap after 1, 3 and 12 months of storage and use, ppm

[0099] Example 7 a) 50 g of shaving gel was added to a 200 ml aerosol can and cooled to minus 20°C in a refrigerator.

[00100] b) 30 g of hydrocarbon propellant GVAU (isobutane, propane, n-butane of the highest grades - 98%) was added, closed with a valve and hydrogen was pumped through the valve to a pressure of 3 atmospheres.

[00101] with 'hydrogen content 14 (+ - 2 ) excess factor 7

[00102] Change in hydrogen content in the gel after 1, 3 and 12 months of storage and use, ppm

Claims

Claim

1. A cosmetic product comprising water, cosmetic ingredients, hydrogen, an easily liquefiable propellant or a mixture of propellants, upon receipt of which hydrogen gas and easily liquefiable propellants are introduced under pressure into a sealed container containing a pre-prepared mixture of water and cosmetic ingredients.

2. A cosmetic product according to claim 1, characterized in that the composition of cosmetic ingredients includes surface-active substances (surfactants).

3. A cosmetic product according to claim 1, characterized in that an easily liquefiable propellant in a liquid state is used.

4. Cosmetic product according to claim 3, characterized in that the liquid state of the easily liquefied propellant is achieved by cooling it to a temperature below the boiling point.

5. A cosmetic product according to claim 1, characterized in that an easily liquefied propellant in a gaseous state is used.

6. Cosmetic product according to claim 1, characterized in that isobutane or isopentane or a mixture thereof is used as easily liquefied propellants.

7. Cosmetic product according to claim 1, characterized in that neutral gases are additionally added to the sealed container.

8. Cosmetic product according to and.1-7, characterized in that the cosmetic ingredients of the composition are selected in accordance with the standards of the respective formulations to form a product from the series: liquid soap, shampoo, shaving foam, shaving gel, shower gel, cream, balm, tonic, micellar water.

9. A sealed container with a cosmetic according to 1-8, made of metal or composite materials and containing a valve.

10. Sealed container according to and. 9, characterized in that it has an additional internal protective coating that is resistant to hydrogen.

11. A sealed container according to item 9, characterized in that it is made in the form of an aerosol can.

12. A method for producing a cosmetic product according to claim 1, including at least the following operations: a) preparing an aqueous cosmetic composition, b) placing the composition in a sealed container and closing it with a valve, c) adding an easily liquefied propellant or mixture of propellants through the valve , d) adding gaseous hydrogen through the valve to the required pressure.

13. The method for producing a cosmetic product according to claim 12, characterized in that the addition of easily liquefiable propellants and hydrogen gas in the form of a pre-prepared mixture is carried out simultaneously.

14. A method for producing a cosmetic product according to claim 12, characterized in that a neutral gas is additionally added.

15. A method for producing a cosmetic product according to claim 12, characterized in that aerosol cans are used as a sealed container.

16. A method for producing a cosmetic product according to claim 12, characterized in that the easily liquefiable propellant or mixture of propellants is added in a liquefied state.

17. A process for the preparation of a cosmetic according to claim 12, characterized in that the easily liquefied propellant or mixture of propellants is added in a gaseous state.

18. A method for producing a cosmetic product according to claim 12, characterized in that isobutane, or isopentane, or a mixture thereof is used as an easily liquefied propellant.

19. A method for obtaining a cosmetic product according to clauses 12-18, characterized in that the injection of easily liquefied propellants is carried out until a pressure in the range of 1.5 - 10 atmospheres is reached.

20. The method for obtaining a cosmetic product according to 12-19, characterized in that the injection of hydrogen gas is carried out until a pressure in the range of 1.5 - 10 atmospheres is reached.