Patent Application
20160287503
The present invention generally relates to cosmetics, and more particularly relates to mild cleansing agents that contain a special surfactant mixture.
Cosmetic cleansing agents, such as hair shampoos, are based on conventional anionic, amphoteric, zwitterionic, nonionic and/or cationic surfactants. Owing to their outstanding cleansing and foaming power, predominantly anionic surfactants, optionally mixed with small amounts of co-surfactants, are used. Typical anionic surfactants that are used in a multitude of commercially available shampoos are alkyl sulfates or alkyl ether sulfates. Alkyl ether sulfates are usually preferred since they are milder and have excellent foaming power.
When formulating particularly mild cleansing compositions for use on sensitive parts of the skin (such as the facial skin), for use on baby skin or for use on sensitive and/or damaged hair, alkyl ether sulfates are not always satisfactory since the irritation potential of the same is too high for these uses and they can impart increased brittleness to damaged hair.
Numerous attempts have therefore been made in the past to find particularly mild surfactant mixtures that have sufficiently large amounts of foam and sufficiently high foam qualities and that have little or no irritation potential on the skin and/or the mucous membrane. The surfactant mixtures additionally were to be suitable for use in hair treatment products, specifically for use in hair cleansing products having good care properties.
The application WO 92/08440 discloses mild surfactant mixtures having outstanding foam properties, which contain a mixture of acyl isethionates, zwitterionic surfactants, and alkyl ether sulfates. WO 11/015857 discloses cleansing compositions that have low irritation potential on the skin and contain novel C5-30 alkoyl-alkyl isethionates and amphoteric surfactants in a weight ratio of 4:1 to 1:4. The mild cleansing agents are suitable for use as baby shampoo.
The disadvantage of many mild skin and hair cleansing agents is that the improved skin compatibility thereof often comes at the expense of the texture of the cleansing agents. The often unsatisfactory amounts of foam and foam properties that can be achieved with mild cleansing agents are another disadvantage. It has moreover been observed that the care properties of mild cleansing agents (in particular on hair) are not always satisfactory.
it is therefore desirable to produce particularly mild cleansing agents that are tolerated well by the skin and mucous membranes. The cleansing agents should have a user-friendly texture and, in conjunction with water, generate large amounts of foam. Furthermore, the cleansing agents should have improved care properties.
Furthermore, other desirable features and characteristics of the present invention will become apparent from the subsequent detailed description of the invention and the appended claims, taken in conjunction with this background of the invention.
A cosmetic cleansing agent includes in at least one suitable carrier at least one first anionic surfactant according to the following formula (I)
in which at least one of the groups R2 to R5 denotes a C1 to C4 alkyl group, and the remaining groups independently of one another denote a hydrogen atom or a C1 to C4 alkyl group, R1 in each case denotes a linear or branched, saturated or unsaturated alkyl group having 6 to 30 carbon atoms, and M+ in each case denotes an ammonium, alkanol ammonium or metal cation; at least one second anionic surfactant of the following formula (II)
in which R′ denotes a linear or branched, saturated or unsaturated alkyl group having 6 to 30 carbon atoms, n denotes a number from 0 to 20, preferably from 1 to 10, and X denotes an ammonium, alkanol ammonium or metal cation; and at least one C2 to C4 monoalkanolamide and/or dialkanolamide of at least one C8 to C24 carboxylic acid.
The following detailed description of the invention is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any theory presented in the preceding background of the invention or the following detailed description of the invention.
A first subject atter of the invention is a cosmetic cleansing agent, including in a suitable carrier
A suitable carrier shall preferably be understood to mean an aqueous or aqueous-alcoholic carrier. The carrier preferably contains at least 50 wt. %, more preferably at least 60 wt. %, and particularly preferably at least 70 wt. % water.
The cosmetic carrier can moreover contain 0.01 to 40 wt. %, preferably 0.05 to 35 wt. %, and in particular 0.1 to 30 wt. % of at least one alcohol, which can be selected from ethanol, 1-propanol, 2-propanol, isopropanol, glycerol, diglycerol, triglycerol, 1-butanol, 2-butanol, 1,2-butanediol, 1,3-butanediol, 1-pentanol, 2-pentanol, 1,2-pentanediol, 1,5-pentanediol, 1-hexanol, 2-hexanol; 1,2-hexanediol, 1,6-hexandiol, polyethylene glycols, sorbitol, sorbitan, benzyl alcohol, phenoxyethanol or mixtures of these alcohols. The water-soluble alcohols are preferred. Ethanol, 1-propanol, 2-propanol, isopropanol, 1,2-propylene glycol, glycerol, benzyl alcohol and/or phenoxyethanol and mixtures of these alcohols are particularly preferred. In particular glycerol is preferred.
Preferred anionic surfactants of the aforementioned formula (I) comprise a linear or branched, saturated or unsaturated alky group having 8 to 18 carbon atoms as group R1. The group R1 particularly preferably denotes a C8, C10, C11, C14, C16 group, or mixtures of these fatty acid groups, as they are obtained when the fatty acid(s) is/are derived from natural oils such as coconut oil.
In further preferred anionic surfactants of the aforementioned formula (I), the groups R2 to R5 can each denote hydrogen or a methyl, ethyl, n-propyl, n-butyl or 2-butyl group. The groups R2 to R5 preferably denote hydrogen, or at least one of the groups R2 to R5 denotes a methyl, ethyl or n-propyl group, and in particular a methyl group. In a particularly preferred embodiment, one of the groups R2 to R5 denotes a C1 to C4 alkyl group, in particular a methyl group, and the remaining groups each denote a hydrogen atom. In principle, it is also possible for the anionic surfactant according to formula (I) to contain a mixture of isomers including both components that comprise, for example, a C1 to C4 alkyl group, in particular a methyl group, as group R2 and a hydrogen atom in each case as groups R3 to R5, and components that comprise, for example, a C1 to C4 alkyl group, in particular a methyl group, as group R5 and a hydrogen atom in each case as groups R2 to R4. M+ in the aforementioned formula (I) preferably denotes an alkali metal cation or an ammonium ion. M+ particularly preferably denotes a potassium or a sodium ion, and in particular preferably a sodium ion. Particularly preferred anionic surfactants according to the aforementioned formula (I) are the compounds known by the MCI names Sodium Cocoyl isethionate, Sodium Lauroyl Isethionate, Sodium Myristyl isethionate, Sodium Palmitoyl Isethionate, Sodium Stearyl Isethionate, Sodium Oleyl Isethionate, Sodium Cocoyl Methyl Isethionate, Sodium Lauroyl Methyl Isethionate, Sodium Myristyl Methyl Isethionate, Sodium Palmitoyl Methyl Isethionate, Sodium Stearyl Methyl Isethionate and/or Sodium Oleyl Methyl isethionate. In particular, Sodium Cocoyl Methyl Isethionate and/or Sodium Lauroyl Methyl Isethionate are preferred. Corresponding commercial products are available, for example, from Innospec under the trade name “Iselux®” and from Clariant or Uniquema under the trade name “Hostapon®” or “Arlatone®”.
Preferred anionic surfactants of the aforementioned formula (II) preferably comprise a linear or branched, saturated or unsaturated alky group having 8 to 18 carbon atoms as the group R′ The group R′ particularly preferably denotes a C8, C10, C12, C14, C16 group, or mixtures of these fatty acid groups, as they are obtained when the fatty acid(s) is/are derived from natural oils such as coconut oil. The number n particularly preferably denotes 0 or the numbers 1, 2, 3, 4, 5, 6, 7, or 8. X preferably denotes an alkali metal ion or an ammonium ion in the aforementioned formula (IV). X particularly preferably denotes a potassium or sodium ion, and in particular preferably a sodium ion.
Most particularly preferred anionic surfactants according to formula (II) are the compounds known by the INCI names Di sodium Lauryl Sulfosuccinate, Disodium Laureth Sulfosuccinate, and Disodium Cocoyl Sulfosuccinate, for example. In particular, Disodium Laureth Sulfosuccinate is preferred. Corresponding commercial products are available, for example, from Evonik under the trade name “Rewopol®” or from BASF under the trade name “Texapon SB®.”
Preferred “C2 to C4 monoalkanolamides and/or dialkanolamides of at least one C8 to C24 carboxylic acid” shall preferably be understood to mean the ethanolamides and/or isopropanolamides of C8 to C24 carboxylic acids, wherein the representatives derived from coconut fatty acids, lauric acid, myristic acid, palmitic acid and stearic acid are particularly preferred. Particularly preferred C2 to C4 monoalkanolamides and/or dialkanolamides according to the invention are those known by the INCI nomenclature Cocamide MEA, Cocamide DEA, Cocamide MIPA, Lauramide MEA, Lauramide DEA, Lauramide MIPA, Palmitoylamid MEA, Pahnitoylamid DEA, Stearamid MEA, and Stearamid DEA. Within the scope of the present invention, in particular the compounds known by the INCI names Cocamide MEA, Cocamide MIPA and/or Lauramide MEA are preferred.
In a first preferred embodiment, cosmetic cleansing agents according to the invention are characterized by comprising
Within this embodiment, particularly preferred cosmetic cleansing agents are those that comprise
So as to generate an optimal amount of foam, it is preferred according to the invention if surfactants a), h) and c) are present in the cosmetic cleansing agents according to the invention in certain quantity ranges:
In a second preferred embodiment, cosmetic cleansing agents according to the invention are thus characterized in that
It was found that the feel of the foam generated by way of the agents according to the invention and the creaminess of the foam can be enhanced even further if the cleansing agents contain the surfactants a), b) and c) in a certain weight ratio.
In a third preferred embodiment, cosmetic cleansing agents according to the invention are thus characterized by preferably comprising the surfactants a), b) and c) in a weight ratio of (1-4):(1-3):(0.5-2), and particularly preferably of (2-4):(1.5-2.5):(0.75-1.5).
It was a goal of the invention to provide particularly mild, strongly foaming cosmetic compositions, which was able to be achieved by the combination of surfactants a), b) and c). The amount of foam generated by the agents according to the invention approximately corresponds to the amount of foam that can be achieved with alkyl ether sulfate-based cleansing agents, wherein the agents according to the invention are milder. The additional use of anionic alkyl ether sulfates in the cleansing agents according to the invention is therefore not necessary.
In a further preferred embodiment of the invention, cosmetic cleansing agents according to the invention are therefore characterized in that the percentage by weight of sulfate group-containing surfactant based on the total weight of the compositions is preferably less than 0.5 wt. %, more preferably less than 0.3 wt. %, and in particular less than 0.2 wt. %.
In contrast, it was possible to increase the amount of foam, the foam properties (in particular the high foam density) and/or the mildness of the compositions according to the invention even further when specific amphoteric surfactants were added. Suitable amphoteric and/or zwitterionic surfactants preferably correspond to at least one compound of the following formulas (i) to (vii), in which the group R denotes a straight-chain or branched, saturated or monounsaturated or polyunsaturated alkyl or alkenyl group having 7 to 23 carbon atoms (formulas (i) and (ii)) or a straight-chain or branched, saturated or monounsaturated or polyunsaturated alkyl or alkenyl group having 8 to 24 carbon atoms (formulas (iii) to (vii)).
Preferred amphoteric and/or zwitterionic surfactants of one of the aforementioned formulas (i) to (vii) predominantly contain a straight-chain or branched, saturated or monounsaturated or polyunsaturated alkyl group having 8 to 20, more preferably 8 to 16, and in particular 8 to 12 carbon atoms as the group R. Amphoteric and/or zwitterionic surfactants in which the group R is derived from coconut oil are more preferred. Amphoteric and/or zwitterionic surfactants of formulas (iii), (v), (vi) and (vii) are particularly preferred.
In particular, the amphoteric surfactants known by the INCI names Cocamidopropyl Betaine and/or Cocoampho(di)acetate, which are commercially available from several suppliers, are preferred. The percentage by weight of the amphoteric/zwitterionic surfactant(s) of one of the aforementioned formulas (i) to (vii) based on the total weight of the cosmetic agents of the use according to the invention is preferably 0.1 to 15 wt. %, preferably 0.5 to 12.5 wt. %, and in particular 1 to 10 wt. %,
In a further preferred embodiment of the invention, cosmetic cleansing agents according to the invention are therefore characterized by additionally comprising at least one amphoteric surfactant, preferably an amphoteric surfactant according to one of the formulas (i) to (vii), wherein the percentage by weight of the amphoteric surfactant based on the total weight of the composition is preferably 0.1 to 15 wt., more preferably 0.5 to 12.5 wt., and in particular 1 to 10 wt.
So as to further optimize the hair care properties of the cosmetic cleansing agents according to the invention, it is advantageous when these additionally contain a conditioning active ingredient complex d), in addition to the surfactant mixture a), b) and c). It was found that specific active ingredient complexes in combination with the surfactant combination a), b) and c) are particularly suitable for imparting a high care effect to the cleansing agents according to the invention. In particular, the wet and dry combability of the hair was able to be increased even further by adding the active ingredient complex.
In a fourth preferred embodiment, cosmetic cleansing agents according to the invention are thus characterized by additionally comprising at least one conditioning active ingredient complex d), containing at least one silicone compound and at least one cationic polymer.
Silicones effectuate outstanding conditioning properties on the hair. In particular, they positively affect the feel of the hair and the softness of the hair in many instances. It is therefore desirable to use silicones in cosmetic hair treatment products. Suitable silicone compounds within the meaning of the present invention can be selected from:
Examples of silicone compounds that are particularly suited according to the invention are:
In preferred silicones according to the invention according to formula (III),
Suitable C1 to C4 alkyl groups shall be understood to mean methyl, ethyl, n-propyl, isopropyl and n-butyl groups. Methyl and ethyl groups are preferred. In particular, methyl groups are preferred.
Particularly preferred are silicone compounds according to formula in which
In particular, silicone compounds according to formula (III) are preferred in which
A particularly suitable silicone compound according to formula (III) for the cosmetic cleansing agents according to the invention is known, for example, by the INCI name Silicone Quaternium-22 and is commercially available. One example of a commercial product that is based on a silicone compound by the INCI name Silicone Quaternium-22 and can be used in the cleansing agents according to the invention is Abil® T Quat 60 from Evonik. Abil® T Quat 60 contains a mixture of the active ingredients known by the INCI names Silicone Quaternium-22 (65%) and PPG-3 Myristyl Ether (35%).
Preferred silicones according to formula (IV) are water-soluble. Within the meaning of the invention, “water-soluble” shall be understood to mean silicones that have a solubility of at least 2 g/100 g water under standard conditions (25° C., 1013 mbar). Particularly preferred silicones b) have at least a water solubility, under standard conditions in each case, of at least 5 g/100 g water, more preferably of at least 10 g/100 g water, and in particular preferred silicones according to formula (IV) are completely water-soluble, which shall be understood to mean that they form a solution at any ratio with water. Further preferred silicones according to formula (IV) are non-volatile.
It has been found that it is advantageous for easier production of the cosmetic cleansing agents according to the invention if the silicones b) are liquid under standard conditions (25° C., 1013 mbar). Particularly preferred silicones according to formula (IV) are known, for example, by the CTFA name Dimethicone Copolyol and are commercially available under the designations Silsoft® (Momentive), Silwet® (General Electric), Dow Corning® (Dow), Belsil® (Wacker), and Abil® (Goldschmidt), for example. Preferred commercial products that contain silicones according to formula (IV) by the CTFA name Dimethicone Copolyol and can be used in the cleansing agents according to the invention are, for example, Silsoft® 895 (Momentive), Silwet© L 722 (General Electric), Silwet® 7001 (General Electric), Silwet® 7605 (General Electric), Silwet® 7500 (General Electric), Dow Corning® 190 (Dow), Dow Corning® 193 (Dow), Dow Corning® 3225 (Dow), Belsil® DMC 6031 (Wacker) and/or Abil® 8842 (Goldschmidt). The percentage of weight of the at least one silicone compound based on the total weight of the cosmetic cleansing agents is preferably 0.01 to 10 wt. %, more preferably 0.05 to 7.5 wt. %, particularly preferably 0.075 to 6 wt. %, and in particular 0.1 to 4 wt. %.
Suitable cationic polymers are, for example:
Preferred cationic polymers are preferably selected from the polymers known by the INCI names Guar Hydroxypropyltrimonium Chloride, Polyquaternium-67, Polyquaternium 10, Polyquaterniu-6, Polyquatemium-7 and/or Polyquaternium-37. In particular, the polymers known by the INCI names Guar Hydroxypropyltrimonium Chloride, Polyquaternium-6, Polyquaternium-7, and Polyquaternium-10 are preferred. The percentage of weight of the cationic polymer or polymers based on the total weight of the cosmetic cleansing agents is preferably 0.01 to 10 wt. %, more preferably 0.025 to 7.5 wt. %, particularly preferably 0.05 to 6 wt. %, and in particular 0.1 to 5 wt. %.
The fourth preferred embodiment particularly preferably comprises cosmetic cleansing agents according to the invention that contain at least one conditioning active ingredient complex d) which includes
In particular, preferred cosmetic cleansing agents within this fourth preferred embodiment preferably comprise at least one silicone compound known by the INCI name Silicone Quaternium-22 and/or at least one silicone compound known by the INCI name PEG-12 Dimethicone, and at least one cationic polymer known by the INCI names Polyquatemium-6, Polyquaternium-7, Polyquaternium-10 and/or Guar Hydroxypropyltrimonium Chloride as the active ingredient complex d). The percentage by weight of the conditioning active ingredient complex d) based the total weight of the composition is preferably 0.1 to 10 wt. %, more preferably 0.25 to 7.5 wt. %, and in particular 0.5 to 5 wt. %.
In a fifth preferred embodiment of the invention, cosmetic cleansing agents according to the invention are characterized by comprising
Within this embodiment, particularly preferred cleansing agents according to the invention are those that comprise
In a further preferred embodiment, the care properties of the cosmetic agents may be further enhanced if they additionally include at least one further conditioning active ingredient, which may be selected from the group of
Suitable protein hydrolysates shall be understood to mean product mixtures that can be obtained by the acidically, basically or enzymatically catalyzed degradation of proteins. Protein hydrolysates of plant, animal and/or marine origin can be used. Animal protein hydrolysates are, for example, elastin, collagen, keratin, silk and milk protein hydrolysates, which can also be present in the form of salts. Such products are sold, for example, under the trademarks Dehylan® (Cognis), Promois® (Interorgana), Collapuron® (Cognis), Nutrilan® (Cognis), Gelita-Sol® (Deutsche Gelatine Fabriken Stoess & Co), Lexein® (Inolex), and Kerasol® (Croda). Protein hydrolysates of plant origin, such as soy, almond, rice, pea, potato and wheat protein hydrolysates, are preferred. Such products are vailable, for example, m ple, under the tradearks Gluadin® (Cognis), DiaMin® a Diamalt), Lexein® (Inox), and Crotein® (Croda).
It is also possible to use cationized protein hydrolysates, wherein the underlying protein hydrolysate can stem from animals, for example from collagen, milk or keratin, from plants, for example from wheat, maize, rice, potatoes, soy or almonds, from marine life forms, for example from fish collagen or algae, or from protein hydrolysates obtained by way of biotechnology. The protein hydrolysates underlying the cationic derivatives can be obtained from the corresponding proteins by way of a chemical, in particular alkaline or acid hydrolysis, an enzymatic hydrolysis and/or a combination of the two types of hydrolysis. The hydrolysis of proteins generally results in a protein hydrolysate having a molecular weight distribution from approximately 100 daltons to several thousand daltons Cationic protein hydrolysates in which the underlying protein component has a molecular weight of 100 to 25000 daltons, preferably 250 to 5000 daltons, are preferred.
Moreover, cationic protein hydrolysates shall be understood to mean quaternized amino acids and the mixtures thereof The quaternization of the protein hydrolysates or of the amino acids is frequently carried out using quaternary ammonium salts, such as N,N-dimethyl-N-(n-alkyl)-N-(2-hydroxy-3-chloro-n-propyl) ammonium halides. The cationic protein hydrolysates can moreover also be further derivatized. Typical examples of the cationic protein hydrolysates and derivatives that shall be mentioned are the commercially available products known under the following NCI names: Cocodimonium Hydroxypropyl Hydrolyzed Collagen, Cocodimonium Hydroxypropyl Hydrolyzed Casein, Cocodimonium Hydroxypropyl Hydrolyzed Collagen, Cocodimonium Hydroxypropyl Hydrolyzed Hair Keratin, Cocodimonium Hydroxypropyl Hydrolyzed Keratin, Cocodimonium Hydroxypropyl Hydrolyzed Rice Protein, Cocodimonium Hydroxypropyl Hydrolyzed Silk, Cocodimonium Hydroxypropyl Hydrolyzed Soy Protein, Cocodimonium Hydroxypropyl Hydrolyzed Wheat Protein, Cocodimonium Hydroxypropyl Silk Amino Acids, Hydroxypropyl Arginine Lauryl/Myristyl Ether HCl, Hydroxypropyltrimonium Gelatin, Hydroxypropyltrimonium Hydrolyzed Casein, Hydroxypropyltrimonium Hydrolyzed Collagen, Hydroxypropyltrimonium Hydrolyzed Conchiolin Protein, Hydroxypropyltrimonium Hydrolyzed keratin, Hydroxypropyltrimonium Hydrolyzed Rice Bran Protein, Hydroxypropyltrimonium Hydrolyzed Silk, Hydroxypropyltrimonium Hydrolyzed Soy Protein, Hydroxypropyl Hydrolyzed Vegetable Protein, Hydroxypropyltrimonium Hydrolyzed Wheat Protein, Hydroxypropyltrimonium Hydrolyzed Wheat Protein/Siloxysilicate, Laurdimonium Hydroxypropyl Hydrolyzed Soy Protein, Laurdimonium Hydroxypropyl Hydrolyzed Wheat Protein, Laurdimonium Hydroxypropyl Hydrolyzed Wheat Protein/Siloxysilicate, Lauryldimonium Hydroxypropyl Hydrolyzed Casein, Lauryldimonium Hydroxypropyl Hydrolyzed Collagen, Lauryldimonium Hydroxypropyl Hydrolyzed Keratin, Lauryldimonium Hydroxypropyl Hydrolyzed Silk, Lauryldimonium Hydroxypropyl Hydrolyzed Soy Protein, Steardimonium Hydroxypropyl Hydrolyzed Casein, Steardimonium Hydroxypropyl Hydrolyzed Collagen, Steardimonium Hydroxypropyl Hydrolyzed Keratin, Steardimonium Hydroxypropyl Hydrolyzed Rice Protein, Steardimonium Hydroxypropyl Hydrolyzed Silk, Steardimonium Hydroxypropyl Hydrolyzed Soy Protein, Steardimonium Hydroxypropyl Hydrolyzed Vegetable Protein, Steardimonium Hydroxypropyl Hydrolyzed Wheat Protein, Steartrimonium Hydroxyethyl Hydrolyzed Collagen, Quaternium-76 Hydrolyzed Collagen, Quaternium-79 Hydrolyzed Collagen, Quaternium-79 Hydrolyzed Keratin, Quaternium-79 Hydrolyzed Milk Protein, Quaternium-79 Hydrolyzed Silk, Quaternium-79 Hydrolyzed Soy Protein, Quaternium-79 Hydrolyzed Wheat Protein.
The percentage by weight of the protein hydrolysate or protein hydrolysates based the total weight of the cosmetic agent is preferably 0.1 to 5 wt. %, more preferably 0.025 to 3 wt. %, and in particular 0.05 to 2 wt. %.
Suitable vitamins shall preferably be understood to mean the following vitamins, provitamins, and vitamin precursors, and the derivatives thereof:
Vitamins, provitamins and vitamin precursors from the groups A, B, E and H are particularly preferred. In particular, nicotinic acid amide, biotin, pantolactone and/or panthenol are preferred. The percentage by weight of the vitamin(s), vitamin derivative(s) and/or vitamin precursor(s) based the total weight of the cosmetic agents is preferably 0.001 to 2 wt. %, particularly preferably 0.005 to 1 wt. %, and in particular 0.01 to 0.5 wt. %.
Suitable oil, wax and/or fat components can preferably be selected from mineral or natural oil components and/or fats. Usually, triglycerides and mixtures of triglycerides are used as natural (vegetable) oils. Preferred natural oils are coconut oil, (sweet) almond oil, walnut oil, peach kernel oil, apricot kernel oil, avocado oil, tea tree oil, soy bean oil, sesame oil, sunflower oil, tsubaki oil, evening primrose oil, rice bran oil, palm kernel oil, mango kernel oil, lady's smock oil, thistle oil, macadamia nut oil, grape seed oil, amaranth seed oil, argan oil, bamboo oil, olive oil, wheat germ oil, pumpkin seed oil, mallow oil, hazelnut oil, safflower oil, canola oil, sasanqua oil, jojoba oil, rambutan oil, cocoa butter and/or shea butter.
Mineral oils that are used are in particular petroleum, paraffin and isoparaffin oils, and synthetic hydrocarbons. One example of a hydrocarbon that can be used, for example, is 1,3-di-(2-ethylhexyl)cyclohexane (Cetiol® S), which is available as a commercial product. A dialkyl ether can furthermore serve as the oil component.
Suitable dialkyl ethers are in particular di-n-alkyl ethers having in total between 12 and 36 carbon atoms, in particular 12 to 24 carbon atoms, such as di-n-octyl ether, di-n-decyl ether, di-n-nonyl ether, di-n-undecyl ether, di-n-dodecyl ether, n-hexyl-n-octyl ether, n-octyl-n-decyl ether, n-decyl-n-undecyl ether, n-undecyl-n-dodecyl ether and n-hexyl-n-undecyl ether, and di-tert-butyl ether, di-iso-pentyl ether, di-3-ethyldecyl ether, tert-butyl-n-octyl ether, iso-pentyl-n-octyl ether and 2-methyl-pentyl-n-octyl ether. The di-n-octyl ether that is commercially available under the designation Cetiol® OE is particularly preferred.
Fats shall be understood to mean fatty acids, fatty alcohols and natural and synthetic waxes, which may be present either in solid form or liquid in an aqueous dispersion. Linear and/or branched, saturated and/or unsaturated fatty acids having 6 to 30 carbon atoms can be used as fats. Fatty acids having 10 to 22 carbon atoms are preferred. Among these, for example, isostearic acids should be mentioned, such as the commercial products Emersol® 871 and Emersol® 875, and isopalmitic acids, such as the commercial product Edenor® IP 95, and all further fatty acids sold under the trade name Edenor® (Cognis). Further typical examples of such fatty acids are caproic acid, caprylic acid, 2-ethyl-hexanic acid, caprinic acid, lauric acid, isotridecanic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, isostearic acid, oleic acid, elaidic acid, petroselinic acid, linoleic acid, linolenic acid, eleostearic acid, arachidic acid, gadoleic acid, behenic acid and erucic acid, and the technical mixtures thereof.
Usually, the fatty acid cuts that are obtainable from coconut oil or palm oil are particularly preferred; in particular, the use of stearic acid is generally preferred.
Suitable fatty alcohols are saturated, monounsaturated or polyunsaturated, branched or unbranched fatty alcohols having C6 to C30, preferably C10 to C22, and most particularly preferably C12 to C22 carbon atoms. It is possible to use, for example, decanol, octanol, octenol, dodecenol, decenol, octadienol, dodecadienol, decadienol, oleyl alcohol, eruca alcohol, ricinol alcohol, stearyl alcohol, isostearyl alcohol, cetyl alcohol, lauryl alcohol, myristyl alcohol, arachidyl alcohol, capryl alcohol, capric alcohol, linoleyl alcohol, linolenyl alcohol and behenyl alcohol, and the guerbet alcohols thereof, wherein this enumeration has be of an exemplary and non-limiting nature. The fatty alcohols, however, are preferably derived from natural fatty acids, wherein usually a production from the esters of fatty acids by way of reduction can be assumed. According to the invention, it is likewise possible to use fatty alcohol cuts that are produced by reducing naturally occurring triglycerides, such as suet, palm oil, peanut oil, rapeseed oil, cottonseed oil, soy bean oil, sunflower oil, and linseed oil, or from the transesterification products thereof with appropriate alcohols, and thus represent a mixture of different fatty alcohols. Such substances are available for purchase, for example, under the designations Stenol®, such Stenol® 1618, or Lanette®, such as Lanette® O, or Lorol®, such as Lorol® C8, Lorol® C14, Lorol® C18, Lorol® C8-18, HD-Ocenol®, Crodacol®, such as Crodacol® CS, Novol®, Eutanol® G, Guerbitol® 16, Guerbitol® 18, Guerbitol® 20, Isofol® 12, Isofol® 16, Isofol® 24, Isofo® 36, isocarb® 12, Isocarb® 16 or Isocarb® 24. It is also possible according to the invention, of course, to use wool wax alcohols, as they are available for purchase, for example, under the designations Corona®, White Swan®. Coronet® or Fluilan®. Suitable natural or synthetic waxes that can be used are solid paraffins or isoparaffins, carnauba waxes, beeswaxes, candelilla waxes, ozokerites, ceresin, spermaceti wax, sunflower wax, fruit waxes such as apple wax or citrus wax, and microwaxes made of PE or PP. Such waxes are available from Kahl & Co., Trittau, for example,
Further fats are, for example
The percentage by weight of the oil, wax and/or fat components based the total weight of the cosmetic agents is preferably 0.01 to 5 wt. %, particularly preferably 0.025 to 4 wt. %, and in particular 0.05 to 3 wt. %. Glycerol can be added separately to the cosmetic agents in an amount of up to 10 wt. % (based on the total weight of the cleansing agent). However, it can also be a component of the aqueous-alcoholic carrier.
It was found that the cosmetic agents according to the invention are also suitable for use as an anti-dandruff preparation. The total weight of anti-dandruff agents based on the total weight of the cosmetic agents can preferably be 0.01. to 10 wt. %, more preferably 0.025 to 7.5 wt. %, particularly preferably 0.05 to 5 wt. %, and in particular 0.075 to 3 wt. %. Suitable active anti-dandruff ingredients can be selected from piroctone olamine, climbazole, zinc pyrithione, ketoconazoles, salicylic acid, sulfur, selenium sulfide, tar preparations, undecenoic acid derivatives, burdock root extracts, poplar extracts, stinging nettle extracts, walnut shell extracts, birch extracts, willow bark extracts, rosemary extracts and/or arnica extracts. Climbazole, zinc pyrithione and piroctone olamine are preferred.
Further active ingredients, auxiliary substances and additives that can be present in the cosmetic agents according to the invention are, for example:
The cosmetic agents according to the invention can preferably have a pH value in the range of 3 to 7, more preferably of 4 to 6.5, particularly preferably of 4.5 to 6.6, and in particular of 5 to 6.
The cosmetic agents according to the invention preferably have a viscosity in the range of 1000 to 15000 mPas, preferably 1500 to 12500 mPas, and in particular 3000 to 10000 mPas (in each case measured using a Haake rotational viscometer VT550; 20° C.; measuring device MV; spindle MV II; 8 rpm). Compositions having such viscosity are easy to distribute on the respective application surface, particularly preferably on the hair, and can optionally be rinsed off again with water after the application.
The following cleansing compositions according to the invention were produced (compositions A and B of the table below; quantity information in [wt. %]):
The following commercial products were used in compositions A and B:
The esults in the table show that the foam quality of composition A according to the invention was found by experts to be good on a scale of 1 to 6 (1=very good, 6=poor). The evaluation with respect to the quality of the foam included the amount of foam, the feel, and the creaminess of the foam.
The compositions according to the invention furthermore allowed the care of the hair during cleansing to be improved, which was noticeable in particular in the improved combability of the hair (wet and dry combability).
While at least one exemplary embodiment has been presented in the foregoing detailed description of the invention, it should be appreciated that a vast number of variations exist. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the foregoing detailed description will provide those skilled in the art with a convenient road map for implementing an exemplary embodiment of the invention, it being understood that various changes may be made in the function and arrangement of elements described in an exemplary embodiment without departing from the scope of the invention as set forth in the appended claims and their legal equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2013 226 274.4 | Dec 2013 | DE | national |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/EP2014/076728 | Dec 2014 | US |
| Child | 15175934 | US |
