EP4106713A1 - Rasierhilfsmittel enthaltend hydroxyalkylcellulosen - Google Patents
Rasierhilfsmittel enthaltend hydroxyalkylcellulosenInfo
- Publication number
- EP4106713A1 EP4106713A1 EP21702398.5A EP21702398A EP4106713A1 EP 4106713 A1 EP4106713 A1 EP 4106713A1 EP 21702398 A EP21702398 A EP 21702398A EP 4106713 A1 EP4106713 A1 EP 4106713A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- shaving aid
- weight
- aid according
- shaving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q9/00—Preparations for removing hair or for aiding hair removal
- A61Q9/02—Shaving preparations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/042—Gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/361—Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/36—Carboxylic acids; Salts or anhydrides thereof
- A61K8/365—Hydroxycarboxylic acids; Ketocarboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/37—Esters of carboxylic acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/731—Cellulose; Quaternized cellulose derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
Definitions
- the present invention describes a novel shaving aid, in particular a shaving gel, which contains hydroxyalkyl celluloses.
- the term shave is associated with shaving a man's beard hair.
- the whiskers are cut off as directly as possible on the surface of the facial skin.
- Whether and where a shave takes place is also subject to fashion trends and cultural idiosyncrasies. If it is trendy or desired, the whiskers or only part of the whiskers are removed. It may also be desirable to remove the hair on other parts of the body. This aspect is increasingly coming to the fore with young girls (teens) and (young) women. The desire to remove hair, for example on the legs and / or in the armpits, is widespread.
- the hair removal i.e. the shave can be done as a dry or wet shave.
- a wet shave the hair is softened before the hair is cut.
- the hair to be shaved must absorb water.
- this water absorption can only take place once the sebum layer has been removed from the hair.
- shaving aids are used.
- the shaving aids have a lubricating effect, which leads to the razor blade sliding and ensures that there is little or no skin irritation when shaving.
- shaving aids for wet shaving There are various forms of shaving aids for wet shaving, starting with shaving soaps, through shaving creams, shaving foams and shaving gels.
- the classic shaving soaps which only existed in the past, contain a mixture of sodium and potassium soaps, with potassium soaps predominating.
- the main component of these soaps is stearate.
- Shaving creams, shaving foams and shaving gels differ from classic shaving soaps in that they have a higher water content and more potassium soaps.
- Shaving aids can also contain fatty acids, oils / fats and / or optionally other lipids.
- Oils and fats essentially consist of triacylglycerols, which are of vegetable or animal origin.
- the oils and fats mentioned contain small amounts of unsaponifiable components and acyl lipids.
- the triacylglycerols can be saponified with soaping agents.
- the saponifying agents in shaving aids also neutralize the fatty acids they contain.
- Triethanolamine is a colorless, viscous liquid that smells like fish and has a strongly alkaline reaction. Triethanolamine is a synthetic compound that is synthesized from non-natural starting materials, namely ethylene oxide and ammonia.
- a shaving aid in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponification and neutralizing agent, was able to achieve the above objects.
- the shaving aid according to the invention is a cosmetic preparation which is intended for use on human hair and on human skin.
- the preparation according to the invention is particularly suitable for shaving beard hair. At the same time, however, hair on other parts of the human body can also be conveniently removed with the aid of the shaving aid according to the invention.
- the shaving aid according to the invention in particular a shaving gel, is an aqueous preparation; the water content is in the range from 60 to 85% by weight, preferably 70 to 80% by weight, based on the total weight of the shaving aid.
- natural, cosmetic ingredients can be summarized as substances that are obtainable from plants, animals, minerals or microorganisms, including those substances that are obtained from the named sources through physical processes, fermentation processes (only those fermentation processes that also occur in nature and lead to products that are also created in nature) and other manufacturing methods are obtained without intended chemical modification.
- the microorganisms may only be those that have not been genetically modified.
- nature-based substances are compounds that are derived from natural starting materials or are produced on the basis of natural starting materials.
- biodegradability describes the process of degradation of organic compounds by living things, especially saprobionts.
- inorganic substances such as CO2, O2 and ammonia are produced; Compounds that are used again by plants and microorganisms to build up organic compounds.
- OECD 301 Organic chemical compounds that are easily biodegradable are classified according to OECD 301, for cosmetic compositions mostly OECD 301 B. These substances can be broken down quickly and completely.
- Organic chemical compounds that are classified according to OECD 302 are restricted, but basically biodegradable.
- At least one hydroxyalkyl cellulose is contained in the shaving aid.
- Hydroxyalkyl celluloses have a thickening effect and can therefore be counted among the thickeners.
- Thickeners are macromolecules that have a largely linear, partly networked structure and have intermolecular interaction forces that enable secondary and main valence bonds between the individual molecules and thus the formation of a network-like structure. Some of them are water-soluble or water-swellable natural or synthetic polymers that form gels or viscous solutions in aqueous systems. They increase the viscosity of the water by either binding water molecules (hydration) or by absorbing and enveloping the water in their interwoven macromolecules, while at the same time restricting the mobility of the water.
- Such water-soluble and water-swellable polymers represent a large group of chemically very different natural and synthetic polymers, the common feature of which is their solubility or swellability in water or aqueous media.
- the prerequisite for this is that these polymers have a sufficient number of hydrophilic groups for water solubility or water swellability and are not excessively crosslinked.
- the hydrophilic groups can be nonionic, anionic or cationic in nature.
- hydrocolloids that can be used in cosmetics and also dermatology, only natural or nature-based polymers are examined and / or used in connection with this invention, namely:
- organic, natural compounds such as agar agar, carrageenan, tragacanth, gum arabic, alginates, pectins, polyoses, guar flour, carob tree gum, dextrins, gelatine, casein, xanthan gum, gellan gum, succinoglycan gum, scleroglucan,
- organic, modified natural substances such as B. carboxymethyl cellulose and other cellulose ethers, hydroxyethyl and -propyl cellulose and the like are used.
- Thickeners according to the invention are hydroxyalkyl celluloses, that is to say celluloses whose hydroxyl groups are derivatized.
- Hydroxyalkyl celluloses are characterized by the following structural formula in which R can represent a hydrogen or a hydroxyalkyl group.
- the hydroxyalkyl celluloses can also be described as cellulose ethers, the hydroxyalkyl groups advantageously being 2-hydroxyethyl, 2-hydroxypropyl or 2-hydroxybutyl groups.
- the use of hydroxyethyl cellulose is particularly preferred in the shaving aid according to the invention.
- the radicals R in the above formula represent hydrogen or 2-hydroxyethyl radicals. Hydroxyethyl cellulose can be obtained, for example, from SE Tylose under the trade name Tylose H 100070 NP2.
- hydroxyalkyl celluloses are either biodegradable or easily biodegradable.
- the at least one hydroxyalkyl cellulose is present with a total weight of 0.1 to 1.5% by weight, preferably 0.3 to 1.3% by weight, based on the total weight of the shaving aid.
- Tables 1a and 1b A comparison of hydroxyalkyl cellulose, using the example of hydroxyethyl cellulose, to other natural thickeners is shown in Tables 1a and 1b.
- Tables 1a and 1b A comparison of hydroxyalkyl cellulose, using the example of hydroxyethyl cellulose, to other natural thickeners was shown in Tables 1a and 1b.
- Table 1a various natural or nature-based thickeners were examined.
- 6 different thickeners shown in bold in Table 1a
- the results, shown in Table 1b showed that hydroxypropyl methyl cellulose and hydroxyethyl cellulose are suitable for thickening at a pH of about 10.
- the further investigations were therefore carried out with hydroxyalkyl celluloses and in particular with hydroxyethyl cellulose.
- the shaving aid contains at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms.
- the fatty acids can be fatty acids each with a certain number of carbon atoms or mixtures of fatty acids that can come from natural sources, such as coconut oil, palm oil, soybean oil or beef fat (tallow).
- the fatty acids are advantageously selected from the group consisting of lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid and / or oleic acid.
- the group comprises lauric acid, myristic acid and / or stearic acid, more preferably the group consists of lauric acid, myristic acid and stearic acid.
- the at least one fatty acid is selected from fatty acids having 6 to 22 carbon atoms, lauric acid.
- an unsaturated fatty acid is included.
- the fatty acids are advantageously selected from the group consisting of lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid and / or oleic acid.
- the at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms is a mixture of fatty acids, with myristic acid and a mixture containing palmitic acid, stearic acid, myristic acid, arachidic acid and oleic acid being included. It is particularly preferred if the mixture consists only of palmitic acid, stearic acid, myristic acid, arachidic acid and oleic acid. It is also very particularly preferred if the mixture of fatty acids consists of myristic acid and a mixture consisting of palmitic acid, stearic acid, myristic acid, arachinic acid and oleic acid.
- the mixture of fatty acids can contain 44 to 50% by weight of palmitic acid, 45 to 50% by weight of stearic acid, 2 to 3% by weight of myristic acid, 1 to 2% by weight of arachidic acid and 0.5 to 1% by weight. % Oleic acid, based on the total weight of the mixture.
- Such a mixture can be obtained from Omya, for example, under the trade name Omyacid 48-cosmed grade MB.
- the named raw material contains according to the manufacturer's instructions
- myristic acid and the mixture containing palmitic acid, stearic acid, myristic acid, arachidic acid and oleic acid in particular consisting of palmitic acid, stearic acid, myristic acid, arachidic acid and oleic acid, are present in a certain weight ratio.
- the at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms is a mixture of fatty acids, namely myristic acid and stearic acid.
- Table 2b shows that a mixture of myristic acid and stearic acid also leads to stable shaving aids. This is particularly the case when the weight ratio of myristic acid to stearic acid is also from 2: 1 to 6: 1, in particular from 2.1: 1 to 5.5: 1.
- the at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms is a mixture of fatty acids, namely myristic acid and a mixture of stearic acid and palmitic acid. It is particularly advantageous if the mixture of stearic acid and palmitic acid consists of 40 to 60% by weight of stearic acid and 60 to 40% by weight of palmitic acid, ideally 50% by weight of stearic acid and 50% by weight of palmitic acid, based on the total weight of the mixture. In this case too, it is preferred if the weight ratio of myristic acid to the mixture consisting of stearic acid and palmitic acid is in the range from 2: 1 to 6: 1, in particular from 2.2: 1 to 5.5: 1.
- the shaving aid according to the invention in particular shaving gel, advantageously contains 3 to 25% by weight, preferably 5 to 15% by weight, of the at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, based on the total weight of the shaving aid.
- the shaving aid according to the invention contains NaOH and / or KOH as simultaneous saponifying agent and neutralizing agent, preferably KOH as the sole saponifying agent and neutralizing agent.
- the simultaneous saponification and neutralizing agent is advantageously contained in the shaving aid at a content of 0.5 to 15% by weight, preferably 1.0 to 10% by weight, based on the total weight of the shaving aid.
- Saponification can be understood as the hydrolytic cleavage of esters with the help of alkalis.
- the result is alcohols (glycerine in the case of triacylglycerols) and the salts of the corresponding fatty acids.
- the saponification number is a key figure for characterizing fats and oils. This number is a measure of the free or bound fatty acids contained in a fat or oil. The number indicates how much KOH (in mg) is required to neutralize the free acids contained in 1 g of fat / oil and the bound fatty acids to release the ester bonds.
- the degree of saponification is given in%. At a degree of saponification of 100%, the saponification and neutralizing agent releases all bound fatty acids and neutralizes all fatty acids in total. At degrees of saponification above 100%, more saponification and neutralizing agent is contained than is required for complete saponification and neutralization, so that this excess is more base and the pH increases. With a degree of saponification below 100%, not all fatty acids can be saponified and neutralized, so that these fatty acids / fats / oils are unsaponified; this can lead to excessively fatty preparations.
- the shaving aid In order to be suitable as a shaving aid for wet shaving, the shaving aid must have an alkaline pH value, namely a pH value of 8 to 12, preferably 8.5 to 11. According to the invention, this pH value is determined with the aid of NaOH and / or KOH, in particular KOH. However, it is also conceivable to use other natural neutralizing agents customary in the cosmetic industry in order to set an alkaline pH.
- KOH potassium hydroxide
- the addition of potassium hydroxide (KOH) can be increased so that degrees of saponification of more than 100% are achieved.
- long-chain fatty acids and / or vegetable fats and oils, which are saponified and neutralized the pH value sometimes increases so much that it has to be reduced again by adding acid.
- the use of at least one organic acid is advantageous for this.
- the addition takes place after the saponification reaction or the saponification step.
- the organic acid is particularly advantageously to be selected from the group consisting of tartaric acid, lactic acid and / or citric acid, more particularly citric acid.
- the shaving aid according to the invention contains at least one organic acid, in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further especially citric acid, the total content of the at least one organic acid is in a range from 0.005 to 10 wt. -%, preferably 0.1 to 5.0% by weight, based on the total weight of the shaving aid.
- Table 3a shows that citric acid, in addition to lowering the pH, increases the stability of the shaving aid; in addition, the viscosity of the shaving aid is also increased.
- the present invention thus also relates to a shaving aid, in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponifying and neutralizing agent and at least one organic acid, in particular selected from Group tartaric acid, lactic acid and / or citric acid, further particularly citric acid.
- a shaving aid in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponifying and neutralizing agent and at least one organic acid, in particular selected from Group tartaric acid, lactic acid and / or citric acid, further particularly citric acid.
- the present invention also relates to the use of at least one organic acid, in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid in a shaving aid according to the invention as an agent for improving stability and / or increasing viscosity.
- at least one organic acid in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid in a shaving aid according to the invention as an agent for improving stability and / or increasing viscosity.
- the at least one organic acid in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid, is added to the composition when the composition is still hot, ie a temperature of 60 up to 80 ° C.
- a temperature of 60 up to 80 ° C This is illustrated by the results presented in Table 3b.
- the addition of at least one organic acid, using the example of citric acid, to a shaving aid that is still at a temperature of 60 to 80 ° C. increases the thermal stability of the shaving aid.
- the present invention thus also relates to the use of at least one organic acid, in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid in a shaving aid according to the invention as a means to improve stability and / or to increase viscosity, where the addition
- the at least one organic acid, in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid, is added to the shaving aid while the shaving aid has a temperature of 60 to 80.degree.
- a lubricant is included in shaving aids.
- the lubricant is used to make the razor glide more easily over the skin to be shaved when shaving wet.
- Lubricant polymers are often used as lubricants; these are in particular long-chain polyethylene glycols with a very high molecular weight, for example PEG-90M.
- the lubricants are often synthetic compounds. The aim of the present invention was to identify and use natural ingredients that correspond to those synthetic substances in their function.
- coconut oil helps to improve the stability of the shaving aid. This is clear from the results shown in Table 4.
- the total amount of avocado oil and / or coconut oil is 1 to 10% by weight, preferably 2 to 8% by weight, based on the total weight of the shaving aid .
- the present invention thus also relates to a shaving aid, in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponifying and neutralizing agent and optionally at least one organic acid, in particular selected from from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid, avocado oil and / or coconut oil.
- a shaving aid in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponifying and neutralizing agent and optionally at least one organic acid, in particular selected from from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid, avocado oil and / or coconut oil.
- the present invention also relates to the use of avocado oil and / or coconut oil in a shaving aid according to the invention as a lubricant.
- the present invention also relates to the use of avocado oil and / or coconut oil in a shaving aid according to the invention as an agent for improving stability.
- the shaving aid according to the invention can contain further lubricants.
- These further lubricant may be selected from the group consisting of lanolin, especially purcellin oil, and Neocerit® Eucerit ® ®, in particular Eucerit ®, are selected.
- lubricants can be selected from the group of fatty alcohols with 6 to 22 carbon atoms.
- Fatty alcohols are linear, saturated or unsaturated primary alcohols (alkan-1-ols) with 6-22 carbon atoms.
- the fatty alcohols can advantageously be selected from the group consisting of cetyl alcohol and / or stearyl alcohol.
- the shaving aid according to the invention contains at least one further lubricant
- the at least one further lubricant has a total weight of 0.1 to 10% by weight, preferably 1 to 5% by weight, based on the total weight of the shaving aid , before.
- alkyl palmitate preferably cetyl palmitate
- the use of at least one alkyl palmitate, preferably cetyl palmitate has proven to be advantageous for the shaving aid according to the invention.
- alkyl palmitates in particular cetyl palmitate, can make a contribution to increasing the stability. This effect occurs in particular when at least one hydroxyalkyl cellulose, in particular a hydroxyethyl cellulose, is used as the thickener and the above-mentioned fatty acids, in particular those which are described in the preferred embodiments, are used.
- the incorporation of at least one alkyl palmitate, in particular cetyl palmitate, has an emulsifying effect and therefore also leads to an improvement in the consistency of the shaving agent according to the invention.
- an improvement in the sliding of the shaver is observed when at least one alkyl palmitate is incorporated into the shaving aid according to the invention.
- the at least one alkyl palmitate using the example of cetyl palmitate, contributes to increasing the stability of the shaving aid according to the invention, especially when a combination of hydroxyethyl cellulose and cetyl palmitate is used.
- the at least one alkyl palmitate with a total content of 0.5 to 6.0% by weight, preferably 1.0 to 5.0% by weight, is %, based on the total weight of the shaving aid.
- the present invention therefore also relates to a shaving aid, in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponification and neutralizing agent, at least one alkyl palmitate, in particular cetyl palmitate, optionally at least an organic acid, in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid and optionally avocado oil and / or coconut oil.
- a shaving aid in particular a shaving gel, containing at least one hydroxyalkyl cellulose, at least one fatty acid selected from fatty acids having 6 to 22 carbon atoms, at least one simultaneous saponification and neutralizing agent, at least one alkyl palmitate, in particular cetyl palmitate, optionally at least an organic acid, in particular selected from the group of tartaric acid, lactic acid and / or citric acid, further in particular citric acid and optionally avocado oil and / or coconut oil
- the present invention also relates to the use of at least one alkyl palmitate, in particular cetyl palmitate, in a shaving aid according to the invention as an agent for increasing stability.
- the shaving aid can contain at least one humectant.
- Humectants can, for example, give the skin moisture and support the razor's ability to slide on the application area.
- the humectants are hygroscopic substances that can bind water. This water-binding capacity is based on hydrophilic groups such as hydroxyl groups, but also amine groups and carboxyl groups.
- Humectants are, for example, glycerin, butylene glycol, propylene glycol, Biosaccaride Gum-1, ethylhexyloxyglycerin, pyrrolidonecarboxylic acid, urea, sorbitol, xylitol, aloe vera gel and others.
- the use of propylene glycol and / or glycerine is preferred according to the invention.
- the shaving aid according to the invention contains the at least one humectant with a total content of 0.01 to 30% by weight, preferably 5 to 20% by weight, based on the total weight of the shaving aid.
- further triacylglycerols preferably of vegetable or animal origin, can be contained in the shaving aid.
- These other triacylglycerols are not coconut oil and / or avocado oil.
- the triacylglycerols are esters of glycerol with three fatty acids, which preferably have 6 to 22 carbon atoms.
- the triacylglycerols are usually oils or fats obtained from plants or animals.
- the vegetable oil (s) can preferably be selected from olive oil, jojoba oil and sunflower oil; the vegetable fat can for example be selected from palm fat.
- the at least one triacylglycerin which is not coconut oil and / or avocado oil, is contained in the shaving aid according to the invention, then the at least one triacylglycerin with a total weight of 0.1 to 10% by weight, preferably 1 to 5% by weight, is %, based on the total weight of the shaving aid.
- the shaving aid in particular in the form of a shaving gel, can contain at least one further O / W emulsifier which is not an alkyl palmitate.
- O / W emulsifiers are characterized by HLB values that are greater than or equal to 8. HLB values can be determined using the following formula:
- HLB 20 x (1- Mii pophii / M), where M üpophii stands for the molar mass of the lipophilic component in the emulsifier and M for the molar mass of the entire emulsifier.
- emulsifiers can act as O / W emulsifiers:
- Ceteareth-25 sodium cetyl stearyl sulfate, laureth-4 phosphate, stearic acid, PEG-6 caprylic acid / capric acid glycerides, ceteth-2, ceteth-20, polysorbate 60, glyceryl stearate mixed with PEG-100 stearate, laureth-4, ceteareth-3, Laureth-23, steareth-2, glyceryl stearate mixed with PEG-30 stearate, polyglyceryl-2-PEG-4-stearate, ceteareth-20, methylglucose sesquistearate, steareth-10, PEG-20 stearate, steareth-21, Steareth-20, isosteareth-20, PEG-45 / dodecylglycol-copolymer, PEG-20-glyceryl stearate, polyglyceryl-2-laurate, isostearyl diglyceryl succinate, glyceryl
- the O / W emulsifiers are selected from the group glyceryl stearate citrate (INCI name: Glyceryl Stearate Citrate), polyglyceryl-3 Distearate, PEG-40 stearate, polyglyceryl-10 stearate (INCI name: Polyglyceryl-10 stearate), glyceryl stearate SE (INCI name: Glyceryl Stearate SE), sodium cetearyl sulfate (INCI name: Sodium Cetearyl Sulfate), stearic acid, Potassium cetyl phosphate (INCI name: Potassium Cetyl Sulfate), polyglyceryl-3 methylglucose distearate (INCI-Polyglyceryl Methylglycose Distearate) and / or sodium stearoyl glutamate (INCI name: Sodium Stearoyl Glutamate), particularly preferably from the group of potassium 3-methyl
- Embodiments of the present invention which are advantageous according to the invention are characterized in that the shaving aid comprises the at least one further O / W emulsifier with a total weight of 0.01 to 5% by weight, preferably 0.1 to 2.5% by weight based on the total weight of the shaving aid.
- the shaving aid according to the invention can contain preservatives. It should be noted that the preservatives must be suitable for use at high pH values, i.e. pH values greater than or equal to 8.
- the parabens which are usually used in the cosmetic industry and phenoxyethanol, can advantageously be used. Preservatives do not need to be added at pH values greater than or equal to 10.
- the shaving aid according to the invention can contain further cosmetic auxiliaries such as are customarily used in such a shaving aid.
- the shaving aid according to the invention advantageously has a certain viscosity or consistency; the viscosity is measured with a Rheomat proRheo 123 brand viscometer (spindle 1, 25 ° C., 62.5 rpm).
- temperature cycles are run through in continuous repetition.
- the temperature is kept at -10 ° C for 10 hours, then heated to + 40 ° C during 2 hours, kept at + 40 ° C for 10 hours and cooled to -10 ° C for 2 hours; this cycle repeats itself over and over again.
- the shaving gel according to the invention can be produced by any known method which is suitable for producing shaving gels. However, it is advantageous according to the invention if the shaving gel according to the invention is produced in the following way: Put water in a suitable container.
- the dissolver stirrer can be, for example, a dissolver stirrer from IKA.
- the stirrer should have a speed of 50 to 2000 rpm, advantageously a stirrer should be selected for the manufacture of a shaving gel according to the invention, which can move the stirrer at 200 to 1200 rpm.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Emergency Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Dermatology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Cosmetics (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020202019.1A DE102020202019A1 (de) | 2020-02-18 | 2020-02-18 | Rasierhilfsmittel enthaltend Hydroxyalkylcellulosen |
| PCT/EP2021/051235 WO2021164974A1 (de) | 2020-02-18 | 2021-01-21 | Rasierhilfsmittel enthaltend hydroxyalkylcellulosen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4106713A1 true EP4106713A1 (de) | 2022-12-28 |
Family
ID=74418413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21702398.5A Pending EP4106713A1 (de) | 2020-02-18 | 2021-01-21 | Rasierhilfsmittel enthaltend hydroxyalkylcellulosen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4106713A1 (de) |
| DE (1) | DE102020202019A1 (de) |
| WO (1) | WO2021164974A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5248495A (en) | 1992-04-16 | 1993-09-28 | The Procter & Gamble Company | Post foaming shaving gel composition |
| US5340571A (en) | 1993-03-26 | 1994-08-23 | The Gillette Company | Non-aerosol shaving gel |
| DE10252395A1 (de) * | 2002-11-12 | 2004-05-27 | Beiersdorf Ag | Temperaturstabile kosmetische Reinigungszubereitung mit Hydroxyalkylcellulosen |
| DE102004027323A1 (de) | 2004-06-03 | 2005-12-22 | Beiersdorf Ag | Seifenhaltige kosmetische Zubereitung mit ethoxylierten Glycerinen |
| DE102004049773A1 (de) | 2004-10-12 | 2006-04-13 | Beiersdorf Ag | Rasierhilfsmittel |
| DE102005024211A1 (de) | 2005-05-23 | 2006-11-30 | Beiersdorf Ag | Elektrolytstabile Stearatemulsion |
| EP2211824B1 (de) * | 2007-10-18 | 2015-09-02 | Unilever PLC | Rasierzusammensetzung mit aftershave-hautpflegeeigenschaft |
| DE102012203565A1 (de) | 2012-03-07 | 2013-09-12 | Beiersdorf Ag | Siliciumdioxid in Rasierprodukten |
| FR3032114B1 (fr) * | 2015-01-30 | 2018-04-06 | Sudcosmetics | Base-gel sous forme de gel translucide sans triethanolamine |
-
2020
- 2020-02-18 DE DE102020202019.1A patent/DE102020202019A1/de not_active Withdrawn
-
2021
- 2021-01-21 WO PCT/EP2021/051235 patent/WO2021164974A1/de not_active Ceased
- 2021-01-21 EP EP21702398.5A patent/EP4106713A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021164974A1 (de) | 2021-08-26 |
| DE102020202019A1 (de) | 2021-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3445749C2 (de) | Beständige gelförmige Rasiercreme | |
| DE69709315T3 (de) | Weichmacherlotionzusammensetzung, ihre verwendung in der papierherstellung und papierprodukt | |
| DE2353088C3 (de) | Gemische aus N-Acyl-asparaginsäurediestem und Gemische aus N-Acylglutaminsäure-diestern sowie diese Gemische enthaltende öllösliche nichtionische oberflächenaktive Mittel und kosmetische Mittel | |
| EP3020390A1 (de) | Shampoos und Spülungen mit konditionierender Wirkung | |
| EP2855650A2 (de) | N-methyl-n-acylglucamin enthaltende zusammensetzung | |
| DE10058384A1 (de) | Kosmetisches oder dermatologisches Mittel in Form eines cremigen Permanentschaums oder einer stabil aufgeschäumten Creme | |
| DE69618940T2 (de) | Tensidzusammensetzungen | |
| DE102010029628A1 (de) | Öl-in-Wasser-Emulsion mit hohem Ölphasengehalt und hoher Reinigungswirkung, Herstellung und Verwendung davon | |
| WO2021148249A1 (de) | Neuartige zusammensetzung als rasierhilfsmittel | |
| DE2536597A1 (de) | Verfahren zur herstellung von emulgatoren und solubilisatoren | |
| WO2024017699A2 (de) | Verfahren zur herstellung einer kosmetischen wasser-in-öl-emulsion aus einer glycerin-in-öl-emulsion | |
| DE1467825A1 (de) | Transparente Mineraloel-Wasser-Gele | |
| DE2736429B2 (de) | Kosmetikum mit einem Gehalt eines polymeren Esters oder eines daraus gebildeten Salzes oder Amids | |
| EP4106713A1 (de) | Rasierhilfsmittel enthaltend hydroxyalkylcellulosen | |
| EP4157201A1 (de) | Peg-freie seifengelzubereitung | |
| DE19630176A1 (de) | Stabile multiple Emulsionen des Typs W/O/W insbesondere für kosmetische Zwecke und Verfahren zur Herstellung derselben | |
| EP1295588B1 (de) | Nachschäumendes kosmetisches Gel und Verfahren zu dessen Herstellung | |
| DE10020874A1 (de) | Kosmetisch-pharmazeutisches Kombinationspräparat | |
| DE202015005287U1 (de) | Zusammensetzung zur Pflege der Haut | |
| EP4580584A1 (de) | Rasierhilfsmittel, freisetzbar aus einem pumpfoamer | |
| WO2019158409A1 (de) | Verfahren zur herstellung grenzflächenaktiver kondensate von citronensäure sowie produkte dieses verfahrens | |
| DE3407821A1 (de) | Hydrophiles derivat von natuerlichem bienenwachs, verfahren zur herstellung desselben und mittel, die dieses enthalten | |
| AT337903B (de) | Kosmetisches mittel | |
| DE2623085C2 (de) | Verwendung von Umsetzungsprodukten von Glycidylethern als Wasser-in-Öl-Emulgatoren | |
| WO2025093277A1 (de) | Kosmetisches mittel enthaltend adenosin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20220919 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BEIERSDORF AG |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20250924 |