cosmetic composition in a container and use of a container

专利摘要:
COSMETIC COMPOSITION IN A CONTAINER. The present invention relates to a cosmetic composition in a container comprising at least one inner pouch and an outer pouch, wherein the outer pouch surrounds the inner pouch and is filled with a propellant compressing the inner pouch, and a valve mechanism attached in the movable inner bag between an open position, in which a composition stored in the inner bag is allowed to be discharged in the form of foam by the pressure of the compressed gas, and a closed position, in which the composition is not allowed to be discharged, the composition inside the inner pouch comprises 0.1 to 5% by weight of a cationic surfactant (A), 0.1 to 10% by weight of a fatty alcohol (B), and 0.1 to 10% by weight of dioxide in. carbon.
公开号:BR112013027084B1
申请号:R112013027084-5
申请日:2012-05-10
公开日:2021-01-12
发明作者:Florian LOECHEL
申请人:The Procter & Gamble Company；
IPC主号:

专利说明:

[0001] [0001] The present invention relates to a cosmetic composition in a container comprising at least one inner pouch and one outer pouch, wherein the outer pouch surrounds the inner pouch and is filled with a propellant compressing the inner pouch, and a mechanism valve attached to the movable inner bag between an open position, in which a composition stored in the inner bag is allowed to be discharged in the form of foam by the pressure of the compressed gas, and a closed position, in which the composition is not allowed to be discharged , the composition in the inner pouch comprising 0.1 to 5% by weight of a cationic surfactant (A), 0.1 to 10% by weight of a fatty alcohol (B), and 0.1 to 10% by weight weight of carbon dioxide. BACKGROUND OF THE INVENTION
[0002] [0002] Cosmetic aerosols for hair, particularly foams, for hair conditioning purposes, provide significant advantages in terms of distribution and handling compared to emulsions or dispersions. However, the disadvantages of conventional foams can be the optical and tactile properties. These conventional foams are generally less creamy and richer than emulsions and dispersions and often give the impression of a lower achievable effect compared to a cream or an emulsion. Therefore, many consumers do not use aerosol conditioning foams, especially those with damaged hair, because the optical and tactile properties do not meet the need for creamy and rich textures of consumers who have damaged hair.
[0003] [0003] In order to improve the properties of such foams, it is known to use low boiling hydrocarbons as propellants, for example propane or butane or the like, to foam the composition as described, for example in DE 103.04.721 A1. Such foams are usually offered in aerosol cans, in which the propellant serves to foam the composition during use if a valve on a dispensing lid is opened. However, such aerosol cans involve the disadvantage that the content may not be sufficiently exhausted. In addition, such cans have a high sensitivity for correct use. If not propelled properly upside down, the propellant will evaporate from the can without the product. In order to allow the consumer to dispense the amount indicated on the can, the cans are usually excessively full. Since hair care compositions can be expensive, there is a persistent desire to increase the exhaustible amount of the compositions.
[0004] [0004] Another problem with conventional aerosol can foams may lie in the fact that a propellant that may be desirable from the point of view of how to dispense the foam more economically from the aerosol can may be undesirable with respect to conventional properties that it gives to the foam. Propellant mixtures require a multi-stage filling process or a premixing process for propellants and can often only provide a conciliatory solution in view of the results related to the quality and texture of the foam, the economy of the production process and completeness of emptying the can.
[0005] [0005] EP 1,342,465 describes the use of carbon dioxide to foam a liquid hair dye. The liquid hair dye is stored in a bag with a valve attached to it, and is mixed with carbon dioxide only when the valve is in an open position.
[0006] [0006] In order to improve the tactile properties of foam preparations to be used in the field of hair treatment, it has often been attempted to give the foam an appearance similar to mousse and a more creamy feel when applied.
[0007] [0007] WO 2007/010487 describes a creamy aerosol mousse, a method of treating hair with such a mousse and its use. Although the tactile properties of such a creamy mousse are very good, problems occur with the choice of propellant. Completely emptying the can containing the composition is often impossible, so over-filling the can is necessary in order to provide the guaranteed amount of creamy mousse. Attempts to achieve a more complete emptying of the can by the variation of the propellant often fail, because a variation of the propellant can modify the properties of the creamy mousse. Such modifications, however, may be undesirable for specific purposes.
[0008] [0008] Therefore, an objective of the present invention is to provide a container with at least one internal bag, for example, a valve-over-bag system, in an external container, containing a stable foam, especially a rich, thick mousse. and creamy like an aerosol creamy mousse as described in WO 2007/010487, preferably an aerosol stable creamy mousse for hair treatment, which releases much more creaminess and abundance than conventional foams, whose flushing device has a level increased exhaust to the mousse from a dispensing device, such as an aerosol can. Another objective of the invention has been to provide a flushing device with a valve-over-pouch system containing a stable foam, especially rich, thick and creamy mousse such as creamy aerosol mousse as described in WO 2007/010487 , which allows the use of different propellants for the exhaustion of mousse from the bag and the generation of a creamy foam. SUMMARY OF THE INVENTION
[0009] [0009] This objective is achieved by a cosmetic composition in a container, which has the characteristics of claim 1. Other advantageous embodiments are provided in the dependent claims.
[0010] [00010] One aspect of the invention is to provide an improved combination of a cosmetic composition and a container in which the cosmetic composition is stored and from which it is discharged, which has the advantages as described above. Cosmetic compositions are generally discharged as a foam, that is, as a two-phase composition that has a liquid phase as the continuous phase and a gas phase as the discontinuous phase. Although the advantages of the invention can be beneficial for any type of foam preparation for hair treatment, it is especially advantageous for those foams, which have improved tactile properties resulting from the perception of the foam, for example, being richer or more creamy. Such perceptions are often associated with a certain viscosity of the liquid phase, or with a certain amount of propellant in the composition to be foamed. Although the invention is aimed at all types of foams, it is very beneficial for foams that can be characterized by the term "mousse", meaning a creamy foam, rich with a character that has the lightness of a foam along with the richness and the sensation of a cream in varying proportions.
[0011] [00011] In the text below the terms "foam" and "mousse" are used interchangeably, except for those passages in which it is especially indicated or clearly understandable that the exchange of terms would be meaningless or would not result in a technically significant result .
[0012] [00012] The basic idea of the present invention is to provide a possibility to offer a foam, especially a creamy aerosol mousse, in a form, in which maximum exhaustion of an aerosol-driven container is possible, but the nature and characteristics of the foam are not limited by the need to use a certain propellant or a certain combination of propellants just to achieve good exhaustion. The present invention allows a free choice of propellants responsible for the texture and appearance of the mousse, while satisfactory exhaustion of the foam is still possible, which can be complete or almost complete. It is still possible according to the present invention to use a combination of propellants which is incompatible during storage, but provides beneficial properties to the foam, especially to a mousse product, after mixing for at least a short period of time.
[0013] [00013] To achieve the advantages mentioned above, a cosmetic composition is provided which is contained within a flexible pouch with a valve, the composition within the pouch containing at least one propellant, preferably at least carbon dioxide and can be discharged from the bag like foam, especially like mousse. The bag containing the composition can be combined with any type of container that can be filled with any type of propellant for the purpose of achieving maximum exhaustion of the composition of the bag, while there is still the ability to plan the foam resulting from a discharge of the cosmetic composition with respect to the propellant depending on the properties with a maximum degree of freedom.
[0014] [00014] When the bag is filled with the cosmetic composition and at least one propellant, it can be inserted into an aerosol can, and the remaining interior space within the aerosol can is then filled with a propellant, such as a compressed gas, for example nitrogen, or compressed air, or any other desired propellant. The bag valve can serve to seal the bag and also the can. For this purpose, two seals can be applied. A primary or external seal can serve to seal the space between the can and the bag. A secondary or internal seal can serve to seal the bag valve. A dispensing cap is favorably attached to the valve. If the dispensing lid is shaken, the valve moves to its open position and any compressed gas between the can and the pouch causes the mousse to escape from the bag and discharge through the dispensing lid. The propellant contained in the cosmetic composition inside the bag is then responsible for foaming the composition after unloading the container. However, it is also possible that the defoaming process results from a mixture of propellants, at least one of which is stored as part of the cosmetic composition inside the bag and at least one of which is stored outside the bag and therefore does not form part of the cosmetic composition stored inside the bag.
[0015] [00015] Particularly, foaming of the composition with a propellant comprising carbon dioxide or consisting essentially entirely of carbon dioxide, results in a stable mousse, which is very smooth and dense and has a consistency and appearance similar to a whipped cream . BRIEF DESCRIPTION OF THE DRAWINGS
[0016] [00016] Figure 1 is a schematic cross-sectional view of a container embodiment described as a part of the present invention;
[0017] [00017] Figure 2 is a side view of the inner bag of the container with a fixed valve mechanism, and
[0018] [00018] Figure 3 is a front view of the inner pocket of the container with a valve mechanism attached. DETAILED DESCRIPTION OF THE INVENTION
[0019] [00019] The present invention is described in detail below. Where applicable, the description is made with reference to the diagrams. It should be noted that some symbols in each diagram represent identical or equivalent constituent elements.
[0020] a) 0,1 a 5 % em peso de um tensoativo catiônico (A), b) 0,1 a 10 % em peso de um álcool graxo (B), e c) 0,1 a 10 % em peso de dióxido de carbono. [00020] The invention relates to a cosmetic composition in a container comprising at least an inner pouch and an outer container, wherein the outer container surrounds the inner pouch and is filled with a propellant compressing the inner pouch; and a valve mechanism fixed in the movable inner bag between an open position, in which a composition stored in the inner bag is allowed to be discharged as a foam by the pressure of the compressed gas, and a closed position, in which the composition is not allowed discharged, the composition in the inner pouch comprising a) 0.1 to 5% by weight of a cationic surfactant (A), b) 0.1 to 10% by weight of a fatty alcohol (B), and c) 0.1 to 10% by weight of carbon dioxide.
[0021] [00021] The invention additionally relates to the use of a container comprising at least one inner pouch and an outer pouch, wherein the outer pouch surrounds the inner pouch and is filled with a propellant compressing the inner pouch; and a valve mechanism fixed in the movable inner bag between an open position, in which a cosmetic composition stored within the inner bag is allowed to be discharged as a foam by the pressure of the compressed gas, and a closed position, in which the composition to be discharged, to discharge a cosmetic composition comprising 0.1 to 5% by weight of a cationic surfactant (A), 0.1 to 10% by weight of a fatty alcohol (B), and 0.1 to 10% by weight weight of carbon dioxide.
[0022] [00022] The cosmetic composition is based on the combination of component (A) a cationic surfactant, which is in general a quaternary ammonium compound such as dizbodimethylammonium chloride, (B) a fatty alcohol, such as cetyl alcohol and stearyl alcohol , and carbon dioxide.
[0023] [00023] The essential ingredients are described below, together with a varied, but not exclusive, list of preferred and optional ingredients. CATIONIC SURFACES
[0024] [00024] The cationic surfactants of preferred use in the composition of the present invention contain amino or quaternary ammonium moieties. Cationic surfactants among those useful for the present invention are presented in the documents mentioned below, all of which are incorporated by reference: M. C. Publishing Co., McCutcheon's, Detergents & Emulsifiers, (North American edition 1979); Schwartz, et al., Surface Active Agents, Their Chemistry and Technology, New York. Interscience Publishers, 1949; US Patent No. 3,155,591, Hilfer published November 3, 1964; US patent No. 3,929,678, Laughlin et al., published December 30, 1975; US patent 3,959,461, Bailey et al., published May 25, 1976; and US Patent No. 4,387,090, Bolich, Jr., published June 7, 1983.
[0025] [00025] Among the cationic surfactant materials containing quaternary ammonium useful for the present invention, there are those with the following general formula (I):
[0026] [00026] Aliphatic groups may contain, in addition to carbon and hydrogen atoms, bonds or other groups, such as amino group, or both. Longer-chain aliphatic groups, for example, those with about 12 carbons or more can be saturated or unsaturated. Especially preferred are long-chain ammonium salts (for example, di-C12-C22, preferably C16-C18, aliphatic, preferably alkyl), short-chain ammonium salts (for example C1-C3 alkyl, preferably C1-C2 alkyl). Primary, secondary and tertiary fatty amine salts are also suitable cationic surfactant materials. The alkyl groups of these amines are preferably from about 12 to about 22 carbon atoms, and can be substituted or unsubstituted. Such amines, usable herein, include stearamidopropyl dimethylamine, diethylaminoethyl stearamide, dimethyl stearamine, soy dimethylamine, soy amine, myristylamine, tridecylamine, ethyl stearylamine, tallow N-propanediamine, ethoxylated stearylamine (5 moles of ethoxylamine). Suitable amine salts include the halogen, acetate, phosphate, nitrate, citrate, lactate and alkyl sulfate salts. Such salts include stearylamine hydrochloride, soy amine chloride, stearylamine formate, tallow N-propanediamine dichloride and stearamidopropyl dimethylamine citrate. Amine cationic surfactants included among those useful in the present invention are disclosed in US Patent No. 4,275,055, Nachtigal, et al., Published June 23, 1981. Preferred cationic surfactants are Genamin® CTAC, that is, cetyltrimethylammonium chloride , esterquats such as tetradecylbetaine-ester chloride, diesterquats such as dipalmitylethyldimethylammonium chloride (Armocare VGH70 from Akzo, Germany), or a mixture of distearoylethylhydroxyethylammonium methosulfate and Cetearyl Alcohol (Dehyquart F-75 from Henkel,.
[0027] [00027] Cationic surfactants (A) are preferably contained in levels from about 0.1% to about 3%, more preferably from about 0.2% to about 1.5%, much more preferably from about 0.4% to about 0.8%, by weight of the composition. FAT ALCOHOL
[0028] [00028] The compositions of the present invention comprise at least one fatty alcohol, preferably at least low non-volatile low-boiling fatty alcohol (B). Suitable fatty alcohols have a melting point of 30 ° C or less, preferably about 25 ° C or less, more preferably about 22 ° C or less. Preferred fatty alcohols are also non-volatile. Fatty alcohols falling within the term "non-volatile" have a boiling point at 0.1 MPa (1.0 atmosphere) of at least about 260 ° C, preferably at least about 275 ° C, more preferably at least about 300 ° C. Suitable fatty alcohols include unsaturated linear chain monohydric fatty alcohols, saturated branched chain fatty alcohols, C8-C12 saturated linear chain fatty alcohols, and mixtures thereof. Fatty alcohols with unsaturated linear chains will typically have a degree of unsaturation. Alkenyl-type unsaturated di- and tri-chains can be present in low levels, preferably less than about 5% by weight of the unsaturated linear chain fatty alcohol more preferably less than about 2%, much more preferably less than than about 1% by weight of unsaturated linear chain fatty alcohol. Preferably, the unsaturated linear chain fatty alcohols will have an aliphatic chain length of C12-C22, more preferably C12-C18, much more preferably C16-C18. Exemplary alcohols of this type include oleyl alcohol and palmitoleic alcohol.
[0029] [00029] Branched-chain alcohols will typically have C12-C22 aliphatic chain sizes, preferably C14-C20, more preferably C16-C18.
[0030] [00030] Exemplifying branched chain alcohols for use in the present invention include isostearyl alcohol, octyldodecanol, and octyldecanol.
[0031] [00031] Examples of C8-C12 saturated straight chain alcohols include octyl alcohol, caprylic alcohol, decyl alcohol, and lauryl alcohol, low melting fatty alcohols are preferably used in a content of about 0.1% to about 10% by weight of the composition, more preferably from about 0.2% to about 5%, much more preferably from about 0.5% to about 3%.
[0032] [00032] The present compositions are preferably limited to the content of monohydric fatty alcohols of saturated linear chain, such as cetyl alcohol and stearyl alcohol, and other waxy fatty alcohols that have boiling points above 45 ° C, no greater than about 5% by weight of the composition, preferably not greater than about 4% because the presence of such waxy fatty alcohols can adversely affect the gloss benefits of the compositions according to the invention.
[0033] [00033] However, it may be desirable to use waxy fatty alcohols due to their conditioning benefits. If such saturated fatty alcohols are present, the weight ratio between liquid fatty alcohols and waxy fatty alcohols is preferably not greater than about 0.25, more preferably not greater than about 0.15 and, most preferably additional, not greater than about 0.10.
[0034] [00034] It may be especially preferred if the cosmetic composition comprises at least one fatty alcohol having a melting point greater than 30 ° C and optionally at least one fatty alcohol having a melting point of 30 ° C or less, where the weight ratio between fatty alcohols having melting points and fatty alcohols having melting points of 30 ° C or less is 0.25 or less if the composition comprises at least one fatty alcohol having a melting point greater than 30 ° C and at least one fatty alcohol having a melting point of 30 ° C or less.
[0035] [00035] The total amount of fatty alcohols in the composition is preferably about 0.5 to about 5.0% by weight, more preferably from about 1.0 to about 4.0% by weight, and much more preferably from about 1.5 to about 3.0% by weight. CARBON DIOXIDE
[0036] [00036] Carbon dioxide is present as a propellant within the inner pouch of the container as a part of the cosmetic composition. It is possible, according to the invention, that carbon dioxide is not the only propellant, it can be mixed with any other propellant, for example, propane, butane, isobutane, dimethylether or N2O, or mixtures of two or more of the above , provided that such a mixture does not show properties that are adverse for the purpose of the invention.
[0037] [00037] However, it may be preferable that carbon dioxide is the only propellant, in this preferred case it is also possible that small amounts of up to about 1% by weight of other propellants, such as propane, butane, isobutane, dimethylether, may be present. or N2O.
[0038] [00038] The amount of carbon dioxide in the cosmetic composition is preferably 0.5 to 5.0% by weight, more preferably 1.0 to 3.0% by weight and much more preferably 1.5 to 2.5% by weight weight of the composition. AQUEOUS PHASE
[0039] [00039] The cosmetic composition that forms a part of the invention may contain water. In that case, the aqueous phase preferably contains about 70 to about 98% by weight, more preferably from about 85 to about 96% by weight, and much more preferably from about 90 to about 95% by weight of water .
[0040] [00040] The aqueous phase can optionally include other liquid, water-miscible or water-soluble solvents such as lower alkyl alcohols, C1-C5 alkyl monohydric alcohols, preferably C2-C3 alkyl alcohols. However, liquid fatty alcohol must be miscible in the aqueous phase of the composition. Said fatty alcohol may be miscible in the aqueous phase or may be made miscible by means of cosolvents or surfactants.
[0041] [00041] The cosmetic composition preferably has a viscosity at 25 ° C of at least about 50 mPa.s, preferably of about 100 mPa.s to about 1500 mPa.s, more preferably of about 200 mPa.s to about 1,000 mPa.s. a viscosity is determined by a "HAAKE Rotation Viscometer VT 550" viscometer with cooling / heating vessel and sensory systems according to DIN 53019 (MV-DIN), the shear rate is 12.9 s-1.
[0042] [00042] The compositions of the present invention preferably have a pH of about 2.5 to about 11, more preferably from about 3 to about 9.5 and, most preferably, from about 4 , 0 to about 7.0. CONDITIONING AGENT BASED ON CATHONIC POLYMER
[0043] [00043] The compositions of the present invention may also contain one or more conditioning agents based on cationic polymer. The conditioning agent based on cationic polymer will preferably be soluble in water. Cationic polymers are typically used at the same levels shown above for cationic surfactants.
[0044] [00044] "Water-soluble" cationic organic polymer means a polymer that is sufficiently soluble in water to form a substantially transparent solution to the naked eye at a concentration of 0.1% in water (distilled or equivalent) at 25 ° C. Preferably, the polymer will be sufficiently soluble to form a substantially transparent solution at a concentration of 0.5%, more preferably at a concentration of 1.0%.
[0045] [00045] As used herein, the term "polymer" should include materials either made by polymerizing one type of monomer or made by polymerizing two (i.e., copolymers) or more types of monomers.
[0046] [00046] The cationic polymers of the present invention generally have an average weight molecular weight that is at least about 5,000, typically at least about 10,000, and which is less than about 10 million. Preferably, the molecular weight is about 100,000 to about 2 million. Cationic polymers generally have cationic portions containing nitrogen, such as quaternary ammonium or cationic amine portions, or a mixture thereof.
[0047] [00047] The cationic charge density is preferably at least about 0.1 meq / g, more preferably at least about 1.5 meq / g, most preferably at least about 1.1 meq / g, most preferably at least about 1.2 meq / g. The cationic charge density of the cationic polymer can be determined according to the Neldahl method. Those skilled in the art will recognize that the charge density of amino-containing polymers can vary, depending on the pH and the isoelectric point of said amino groups. The charge density must be within the above limits, at the intended pH for use. Any anionic counterions can be used for cationic polymers, as long as the water solubility criterion is met. Suitable counterions include halides (for example, Cl, Br, I, or F, preferably Cl, Br, or I), sulfate and methyl sulfate. Others can also be used, as this list is not exclusive. The cationic portion containing nitrogen will generally be present as a substituent in a fraction of the total monomeric units of the cationic polymers for hair conditioning. Therefore, the cationic polymer may comprise copolymers, terpolymers etc., of quaternary ammonium or monomeric units substituted with cationic amine and other non-cationic units mentioned in this document as spacer monomeric units.
[0048] [00048] Suitable cationic polymers include, for example, copolymers of vinyl monomers that have cationic amine or quaternary ammonium functionality, with water-soluble spacer monomers, such as acrylamide, methacrylamide, alkyl- and dialkyl-acrylamides, alkyl- and dialkyl-methacrylamides, alkyl acrylate, alkyl methacrylate, vinylcaprolactone and vinylpyrrolidone. The alkyl and dialkyl substituted monomers preferably have C1-C7 alkyl groups, more preferably C1-C3 alkyl groups.
[0049] [00049] Other suitable spacer monomers include vinyl esters, vinyl alcohol (produced by hydrolysis of poly (vinyl acetate), maleic anhydride, propylene glycol and ethylene glycol.
[0050] [00050] Cationic amines can be primary, secondary or tertiary amines, depending on the specific species and the pH of the composition. In general, secondary and tertiary amines are preferred, especially tertiary ones. Amine-substituted vinyl monomers can be polymerized in the form of amine and then optionally converted to ammonium through a quaternization reaction. The amines can also be quaternized, in a similar manner, subsequent to the formation of the polymer. For example, tertiary amine functionalities can be quaternized by reaction with a salt of the formula R'X in which R 'is a lower alkyl, preferably a C1-C7 alkyl, more preferably a C1-C3 alkyl, and X is a anion that forms a water-soluble salt with quaternized ammonium.
[0051] [00051] Suitable quaternary ammonium and cationic amino monomers include, for example, vinyl compounds substituted with dialkylaminoalkyl acrylate, dialkylaminoalkyl methacrylate, monoalkylalkylammonylalkyl, trialkyl monoalkylammonyl acrylate, trially , and quaternary vinylammonium monomers having cyclic rings containing cationic nitrogen such as pyridinium, imidazolium, and quaternized pyrrolidone, for example alkylvinylimidazolium, alkylvinylpyridinium, alkylvinylpyrrolidone salts. The alkyl moieties of these monomers are preferably lower alkyls such as C1-C3 alkyls and, more preferably, C1 and C2 alkyls. Amine-substituted vinyl monomers suitable for use in the present invention include dialkylaminoalkyl acrylate, dialkylaminoalkyl methacrylate, dialkylaminoalkylacrylamide and dialkylaminoalkylmethacrylamide, with the alkyl groups being preferably C1-C3-hydrocarbons, preferably C1-C3-hydrocarbons.
[0052] [00052] Coacervate phase-forming cationic polymers may include mixtures of monomeric units derived from monomer substituted with amine and / or quaternary ammonium and / or compatible spacer monomers.
[0053] [00053] Cationic polymers suitable for hair conditioning include, for example: copolymers of 1-vinyl-2-pyrrolidone and 1-vinyl-3-methylimidazolium salt (for example, chloride salt) (called in the industry by Cosmetic Toiletry and Fragrance Association, "CTFA", such as Polyquaternium-16), such as those commercially available from BASF Wyandotte Corp. (Parsippany, NJ, USA) under the trade name LUVIQUAT (for example LUVIQUAT FC 370); copolymers of 1-vinyl-2-pyrrolidone and dimethylaminoethyl methacrylate (referred to in the industry by CTFA as Polyquaternium-11) as those commercially available from Gaf Corporation (Wayne, NJ, USA) under the trade name GAFQUAT (eg GA17QUAT 755N ); cationic polymers containing quaternary diallylamonium, including, for example, dimethyldiallammonium chloride homopolymer and acrylamide and dimethyldiallammonium chloride copolymers, cited in the industry (CTFA) as Polyquaternium-6 and Polyquaternium-7, respectively; and mineral acid salts of aminoalkyl esters of homo- and co-polymers of unsaturated carboxylic acids having 3 to 5 carbon atoms, as described in US Patent No. 4,009,256, incorporated herein by reference. Other cationic polymers that can be used include polysaccharide polymers, such as cationic cellulose derivatives and cationic starch derivatives. Cationic polysaccharide polymer materials suitable for use in the present invention include those with the following formula:
[0054] [00054] Cationic cellulose is available from Amerchol Corp. (Edison, NJ, USA) in their Polymer JR © and LR © polymer series, in the form of hydroxyethylcellulose salts reacted with trimethylammonium-substituted epoxide, cited in the industry (CTFA) as Polyquaternium-10.
[0055] [00055] Another type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethylcellulose reacted with epoxide substituted with lauryl dimethylammonium, cited in the industry (CTFA) as Polyquaternium-24. These materials are available from Amerchol Corp. (Edison, NJ, USA), under the trade name Polymer LM-200 ©.
[0056] [00056] Other cationic polymers that can be used include guar gum derivatives, such as guar hydroxypropyltrimony chloride (commercially available from Celanese Corp. in its JaguarR © series).
[0057] [00057] Other materials include cellulose ethers containing quaternary nitrogen (for example as described in US patent No. 3,962,418, incorporated herein by reference), and etherified starch and cellulose copolymers (for example as described in US patent no. 3,958,581, incorporated herein by way of reference).
[0058] [00058] As discussed above, its cationic polymer is soluble in water. This does not mean, however, that said polymer needs to be soluble in the composition. Preferably the cationic polymer can be either soluble in the composition or in a complex coacervate phase in the composition formed by the cationic polymer and the anionic material. The complex coacervates of the cationic polymer can be formed with anionic surfactants or with anionic polymers that can optionally be added to the compositions of the present invention (e.g., poly (sodium styrenesulfonate)). SILICONE-BASED CONDITIONING AGENTS
[0059] [00059] Their compositions can also include soluble or insoluble silicone based conditioning agents. The term "soluble" means that the silicone-based conditioning agent is miscible with the aqueous vehicle of the composition, so as to form part of the same phase. The term "insoluble" means that the silicone forms a discontinuous phase, separate from the aqueous vehicle, as in the form of an emulsion or a suspension of silicone droplets.
[0060] [00060] Soluble silicones include silicone copolyols, such as dimethicone copolyols, for example polymers modified with polyethersiloxane, such as polydimethylsiloxane modified with poly (propylene oxide), poly (ethylene oxide), in which the ethylene oxide content and / or propylene oxide is sufficient to allow solubility in the composition.
[0061] [00061] However, insoluble silicones are preferred. The insoluble silicone-based hair conditioning agent for use in the present invention will preferably have a viscosity of about 0.001 to about 2 m2 / s (about 1,000 to about 2,000,000 centistokes) at 25 ° C, more preferably about from 0.01 to about 1.8 m2 / s (about 10,000 to about 1,800,000 cst), even more preferably from about 0.1 to about 1.5 m2 / s (about 100,000 to about 1,500,000 centistokes) at 25 ° C. Viscosity can be measured using a glass capillary viscometer, as demonstrated in the July 20, 1970 Dow Corning Corporate test method.
[0062] [00062] Suitable non-volatile insoluble silicone fluids include polyalkylsiloxane, polyarylsiloxanes, polyalkylsiloxanes, polyether siloxane copolymers and mixtures of these items. Other non-volatile, insoluble silicone fluids having hair conditioning properties can also be used. The term "non-volatile" as used herein should mean that the silicone has a boiling point of at least about 260 ° C, preferably at least about 275 ° C, more preferably at least about 300 ° C. Such materials exhibit low or no significant vapor pressure under environmental conditions. The term "silicone fluid" should mean flowable silicone materials having a viscosity of less than 1 m2 / s (1,000,000 centistokes) at 25 ° C. In general, the viscosity of the fluid will be between about 5E-6 and 1 m2 / s (5 and 1,000,000 centistokes) at 25 ° C, preferably between about 1E-5 and about 0.3 m2 / s (about 10 and about 300,000 cst).
[0063] [00063] Preferred silicones are polydimethylsiloxane, polydiethylsiloxane, and polymethylphenylsiloxane. Polydimethylsiloxane is especially preferred. Non-volatile polyalkylsiloxane fluids that can be used include, for example, polydimethylsiloxanes. These siloxanes are available, for example, from General Electric Company in its Viscasil R and SF 96 series, and from Dow Corning in its Dow Corning 200® series.
[0064] [00064] The polyalkylarylsiloxane fluids that can be used, also include, for example, polymethylphenylsiloxanes. These siloxanes are available, for example, from the General Electric Company as SF 1075 methyl phenyl fluid or from Dow Corning as 556 Cosmetic Grade Fluid or diquaternary silicones such as INCI Quaternium-80 (eg Abil® Quat 3272 or Abil® Quat 3270 with Th. Goldschmidt AG, Germany).
[0065] [00065] Especially preferred, to accentuate the characteristics of hair shine, are highly arylated silicones, such as highly phenylated polyethylsilicone having refractive indices of about 1.46 or higher, especially about 1.52 or higher. When these high refractive index silicones are used, they need to be mixed with a diffusing agent, such as a surfactant or a silicone resin, as described later in this document, to decrease surface tension and enhance the film-forming ability of the material. .
[0066] [00066] Polyether siloxane copolymers that can be used include, for example, a polydimethylsiloxane modified with polypropylene oxide (eg Dow Corning DC-1248®) although ethylene oxide or mixtures of ethylene oxide and ethylene oxide can also be used propylene oxide. The levels of ethylene oxide and polypropylene oxide must be low enough to avoid their solubility in water and in the composition described here.
[0067] [00067] Another silicone-based hair conditioning material, which can be especially useful in silicone-based conditioning agents is insoluble silicone gum. The term "silicone gum", as used here, means polyorganosiloxane materials having a viscosity at 25 ° C greater than or equal to 1 m2 / s (1,000,000 centistokes). Silicone gums are described by Petrarch et al. Including US Patent No. 4,152,416, Spitzer et al., Published May 1, 1979 and Noll, Walter, Chemistry and Technology of Silicones, New York: Academic Press 1968. The silicone gums are also described in General Electric's "Silicone Rubber Product Data Sheets" product brochures SE 30, SE 33, SE 54 and SE 76. All of these described references are hereby incorporated by reference. "Silicone gums" typically have a molecular weight above about 200,000 and generally between about 200,000 and about 1,000,000. Specific examples include polydimethylsiloxane, copolymer of (polydimethylsiloxane) (methylvinylsiloxane), copolymer of poly (dimethylsiloxane) (diphenylsiloxane) (methylvinylsiloxane) and mixtures of these items.
[0068] [00068] Preferably the silicone-based hair conditioning agent comprises a mixture of a polydimethylsiloxane gum, having a viscosity greater than about 1 m2 / s (1,000,000 centistokes) and polydimethylsiloxane fluid having a viscosity of about 1E-5 at about 0.1 m2 / s (about 10 centistokes to about 100,000 centistokes) at 25 ° C, in which the ratio of gum to fluid is about 30:70 to about 70: 30, preferably from about 40:60 to about 60:40.
[0069] [00069] An optional ingredient that can be included in the silicone-based conditioning agent is silicone resin. Silicone resins are highly cross-linked polymeric siloxane systems. Cross-linking is introduced through the incorporation of trifunctional and tetrafunctional silanes with mono-functional or difunctional silanes, or both, during the manufacture of the silicone resin. As is well understood in the art, the degree of crosslinking required to produce a silicone resin varies according to the specific silane units incorporated in that resin. In general, silicone materials that have a sufficient level of trifunctional and tetrafunctional siloxane monomer units and, therefore, a sufficient level of crosslinking, to dry in the form of a rigid or hard film, are considered silicone resins. The ratio of oxygen atoms to silicon atoms is indicative of the level of crosslinking of the silicone material. Silicone materials that have at least about 1.1 oxygen atoms per silicon atom will generally be silicone resins in the present invention.
[0070] [00070] Preferably, the ratio of oxygen atoms: silicon atoms is at least about 1.2: 1.0.
[0071] [00071] Silanes used in the manufacture of silicone resins include monomethyl-, dimethyl-, trimethyl-, monophenyl-, diphenyl-, methylphenyl-, monovinyl-, and methylvinylchlorosilanes, and tetrachlorosilane, with the silanes substituted with methyl being the most common used. Preferred resins are offered by General Electric as GE SS4230 and SS4267®. Commercially available silicone resins are generally supplied in a form dissolved in a low-viscosity volatile or non-volatile silicone fluid. Silicone resins for use in the present invention need to be supplied and incorporated into the present compositions in this dissolved form, as will be apparent to those skilled in the art. Silicone resins can optimize the deposition of silicone in the hair, and can enhance the shine of the hair with high refractive index volumes.
[0072] [00072] Silicone materials and, particularly, silicone resins can be conveniently identified according to a shorthand nomenclature system known to those skilled in the art as "MDTQ" nomenclature. Under this system, silicone is described according to the presence of the various units of siloxane monomers that comprise it. In short, the symbol M denotes the monofunctional unit (CH3) 3SiO, 5; D denotes the difunctional unit (CH3) 2SiO, T denotes the trifunctional unit (CH3) SiO1,5 and Q denotes the quadri- or tetra-functional unit SiO2. Cousins of the unit symbols, for example, M ', D', 'T, and Q' denote different methyl substituents, and need to be specifically defined for each occurrence. Typical alternative substituents include groups such as vinyl, phenyls, amines, hydroxyls, etc. The molar ratios of the various units, either in terms of subscripts for the symbols indicating the total number of each type of unit in the silicone (an average thereof) or as ratios specifically indicated in combination with the molecular weight complete the description of the silicone material under the MDTQ system. Higher relative molar amounts of T, Q, T 'and / or Q' to D, D ', M and / or M' in a silicone resin indicate higher levels of crosslinking. However, as discussed earlier, the total level of crosslinking can also be indicated by the ratio of oxygen to silicon.
[0073] [00073] Silicone resins MQ, MT, MTQ, MQ and MDTQ are preferred for use in the present invention. Therefore, the preferred silicone substitute is methyl. Especially preferred are MQ resins in which the M: Q ratio is from about 0.5: 1.0 to about 1.5: 1.0 and the average molecular weight of the resin is from about 1,000 to about 10,000 .
[0074] [00074] The silicone-based hair conditioning agent can be used in the compositions here at levels from about 0.1% to about 5% by weight of the composition, preferably from about 0.3% to about 3%, more preferably from about 0.5% to about 3.0%, much more preferably from about 1.0% to about 3.0% by weight. ADDITIONAL CONDITIONING AGENTS
[0075] [00075] The compositions of the present invention may also comprise one or more additional conditioning agents, such as those selected from the group consisting of avocado oil, fatty acids, isopropyl myristate, lanolin, apple wax, beeswax or jojoba oil, phospholipids, for example lecithins or ceramides; hydrocarbon esters and vaseline non-volatile hydrocarbons. Imidazolidinyl derivatives such as INCI Quaternium-87 (Rewoquat® W 575, available from Witco, Germany) are also useful.
[0076] [00076] Its components may comprise from 0.1% to about 20%, preferably from about 0.1% to about 10%, more preferably from about 0.5% to about 5%, from additional conditioning agents. OTHER INGREDIENTS
[0077] [00077] The compositions of the present invention may contain a number of other optional components suitable to make such compositions more cosmetically or aesthetically acceptable, or to provide them with additional use benefits. Such conventional optional ingredients are well known to those skilled in the art.
[0078] [00078] A wide variety of additional ingredients can be formulated in the present composition. These include: other conditioning agents, for example betaine, carnitine esters, creatine, amino acids, peptides, proteins and vitamins; polymers for hair firmness, detersive surfactants such as anionic, non-ionic, amphoteric and zwitterionic surfactants; thickening agents and suspending agents, such as xanthan gum, guar gum, hydroxyethylcellulose, methylcellulose, hydroxyethylcellulose, starch and starch derivatives, viscosity modifiers such as long chain fatty acid methanolamides, cocomonoethanolamide, salts such as sodium chloride and potassium and crystalline suspending agents, pearlescent auxiliaries such as ethylene glycol distearate; UV filters such as isoamylester of p-methoxycinnamic acid, lipophilic cinnamic acid esters, salicylic acid esters, derivatives of benzophenones 4-aminobenzoic acid or hydrophilic sulfonic acid or 3-benzylidene camphor; antioxidants like tocopherols; preservatives such as benzyl alcohol, methylparaben, propylparaben and imidazolidinylurea; poly (vinyl alcohol); ethyl alcohol; pH adjusting agents, such as citric acid, formic acid, glyoxylic acid, acetic acid, lactic acid, pyruvic acid, sodium citrate, succinic acid, phosphoric acid, sodium hydroxide, sodium carbonate; salts in general, such as potassium acetate and sodium chloride; coloring agents, such as any of the FD&C or D&C dyes; agent for oxidation (discoloration) of hair, such as hydrogen peroxide, perborate and persulfate salts; reducing agents for hair, such as thioglycolates; perfumes, sequestering agents, such as disodium ethylene diamine tetraacetate, and polymer plasticizers, such as glycerin, diisobutyl adipate, butyl stearate and propylene glycol.
[0079] [00079] These optional ingredients are generally used individually in levels ranging from about 0.01% to about 10.0%, preferably from about 0.05% to about 5.0% of the composition.
[0080] [00080] The compositions of the present invention may additionally comprise from about 0.1% to about 2%, more preferably from about 0.2% to about 1%, and much more preferably from about 0.5% about 1% of a polymeric thickening agent. These can also offer a good perception of spreading during application to the hair. METHOD OF USE
[0081] [00081] The cosmetic compositions of the present invention are used in conventional ways to provide beneficial effects to the hair, especially conditioning and shine effects. The method of use depends on the type of creamy aerosol composition used, but in general it involves the application of an effective amount of product to the hair, which can then be rinsed from the hair (as is the case with hair ridges) or allowed to remain on hair (as is the case with products without rinsing). The "effective amount" means an amount sufficient to provide a hair conditioning and / or hair shine benefit. In general, from about 1 g to about 50 g is applied to the hair on the scalp. The composition is distributed in all parts of the hair, typically by rubbing or massaging the hair or scalp with your own hands or with the hands of another person.
[0082] [00082] Preferably, the cosmetic composition is applied to damp or wet hair before drying the hair. After these compositions have been applied to the hair, it is dried and combed according to the user's desire, and in the way the user is used to. Alternatively, the composition is applied to dry hair, which is then combed or styled according to the user's desire.
[0083] [00083] The cosmetic composition according to the present invention can also be used in applications without rinsing and with subsequent rinsing. In the latter case, the period of action of the composition depends on the temperature (about 20 ° C to 50 ° C) and is 1 minute to 60 minutes and preferably 5 minutes to 20 minutes. The composition can also be used as a pre-treatment agent before drying or before a permanent curl treatment.
[0084] [00084] The benefits of the invention result from the exclusive combination of a container comprising an inner pouch and an outer pouch, which surrounds the inner pouch, while the inner pouch has a fixed valve mechanism that is movable between an open position and a position closed.
[0085] [00085] The container 10 in which the cosmetic composition is contained comprises an inner pouch 12 filled with the cosmetic composition as specified above, an outer container 14 positioned on the outer side of the inner pouch 12 and surrounding the inner pouch, and a locking mechanism. valve 16 sealing the container 14 and the inner pouch 12. The outer container 14 is formed of metal or plastic or the like, and a propellant such as air, nitrogen, carbon dioxide, or an organic propellant such as dimethylether, ethane, propane, butane or similar or any other suitable compressed gas is added to be contained within a space between the outer container 14 and the inner pouch 12. The pressure of the propellant is preferably adjusted to 0.3 to 1.0 MPa, preferably to about 0, 8 MPa, in order to maintain a stable discharge of the bag's contents until the preferably complete exhaustion of the composition contained in the bag.
[0086] [00086] The inner pouch 12 is preferably flexible, and can be made of a single material or a composite material, which preferably comprises at least one polymeric layer and a layer that acts as a gas barrier, for example, made of metal , such as aluminum. Preferably the inner material of the bag is inert to the contents of the composition, and more preferably the inner material is also impenetrable by the contents of the composition inside the bag. It is further preferable that the inner pouch comprises a layer of a material that is essentially impermeable to the propellant within the pouch. It is also preferable that the inner pouch comprises a layer of a material that is essentially impermeable to the propellant outside the pouch which is not generally intended to be mixed with the composition inside the inner pouch during storage. The mixture of the propellant inside the bag and the propellant outside the bag may be inappropriate for the properties of the cosmetic composition inside the bag, for example due to the fact that the propellant outside the bag negatively influences the properties of the cosmetic composition during storage or after unloading the bag, or it may be inappropriate due to the fact that the propellant outside the bag and the propellant inside the bag are not compatible, for example, due to a chemical reaction between the propellants.
[0087] [00087] This, however, does not preclude the possibility that the propellant inside the bag and the propellant outside the bag will be mixed during the dispensing of the cosmetic composition when the dispensing valve is activated to open and dispense the contents of the inner bag. A mixing channel or other suitable means can be used in such a case to mix the propellant inside the container outside the inner pouch with the dispensed cosmetic composition comprising carbon dioxide, if desired.
[0088] [00088] The inner pocket 12 may comprise flat side edges 18 and may also additionally comprise a bottom fold 20 directed to the upper end of the pocket 12 for the purpose of allowing controlled flattening of the pocket. In the area of the bottom fold 20, the inner pocket 12 may comprise two flat triangular portions 22 and each extending from the bottom edge 24 to the side edge 18 at an angle of about 45 °. This can additionally facilitate the flattening of the pocket 12, when compressed by the pressure of the external propellant.
[0089] [00089] In general, all types of valve systems can be part of the inner bag. In an illustrative embodiment the valve mechanism 16 comprises a housing 26, a valve stem 28, a spring 30, a valve plate 32, an inner seal 34 and an outer seal 36. The valve stem 28 comprises at least one opening side 38 and is movable up and down within housing 26. Spring 30 is positioned between the lower end portion 40 of valve stem 28 and housing 26 and pushes valve stem 28 in an upward direction to the plate of the valve 32 which is positioned at the upper end of the housing 26. The valve plate 32 comprises two recesses 42, 44 extending in a circumferential direction of the valve plate 32 and positioned coaxially. An axial opening 46 is located in the central portion of the internal recess 42. The internal seal 34 is positioned within the internal recess 42 and is attached to the valve plate 32. The internal seal 34 is adapted to engage the valve stem 28 in such a way. so that the side opening 38 of the valve stem 28 is covered and blocked, respectively. The external seal 36 is positioned in the secondary or external recess 44 of the valve plate 32. The valve stem 28 comprises a passage 48 in its central axial portion connected in the side opening 38 on one side and connectable to a corresponding passage of the dispensing cover on the other side. In particular, the spring 30 causes the valve stem 28 to be pressed into a position, in which the inner seal 34 blocks the side opening 38 of the interior space of the housing 26 of the valve mechanism 16. This means that a flow path of the interior space of the housing 26 along the valve stem 28 and through the side opening 38 of the valve stem 28 is blocked by the internal seal 34. The valve mechanism 16 is fixed in the inner pocket 12 at its upper end in such a way that a lower end of the housing 26 of the valve mechanism 16 prevents the passage of gas covered by the upper edge of that of the inner pocket 12.
[0090] [00090] Additionally, the inner pocket 12 and the valve mechanism 16 are attached to the outer container 14 such that an upper end of the outer container 14 engages with the outer seal 44 of the valve plate 32 in a manner that prevents passage of gas. Consequently, the interior of the inner pouch 12 and the space between the outer container 14 and the inner pouch 12 are each independently sealed. The dispensing cover, which is not shown, which has an actuator, is attached to the valve plate 32 in such a way that the actuator engages with the valve stem 28. For this purpose, the actuator is inserted into the central opening 46 of the valve plate. valve 32. The actuator comprises a passage extending from a jet opening of the dispensing cover to its lower end. In an alternative embodiment, the valve mechanism may comprise a valve fitting and a valve element in place of the valve stem.
[0091] [00091] Container 10 can operate as follows. First, with the dispenser lid not pressed, the cosmetic composition contained inside the inner bag 12 and the compressed gas contained in the space between the outer container 14 and the inner bag 12 are each sealed and stored because the actuator only contacts the stem valve 28 but does not press it in the opposite direction to contact with the internal seal 34. Consequently, valve 16 is in a closed position and a flow path is blocked through valve housing 26, side opening 38 of the valve stem 28, and the passage 48 inside the valve stem 28.
[0092] [00092] When the dispensing cover and the actuator are pressed down, the valve stem 28 is moved downward against the changing force of the spring 30 and the internal seal 34 remains stationary. In this way, the valve stem 28 moves into the inner seal 34 while contacting it. The continuous movement is that the lateral opening 38 of the valve stem 28 is discovered by the internal seal 34 and a flow path is opened between the valve housing 26 and the valve stem 28 through the lateral opening 38. Thus, the interior of the inner pouch 12 and the flow path within the valve housing 26 become connected in such a way that the hair composition contained within the inner pouch 12 passes through the flow path and is blasted out of the dispensing cap by the pressure of the compressed gas. At the same time, the inner pocket 12 is compressed. Due to the flat side edges 18, the bottom fold 20 and the horizontal portions 24 on the bottom edge, the inner pocket 12 is flattened in a controlled manner and takes the form of a horizontal blade if fully compressed.
[0093] [00093] If the downward pressure on the dispensing cap is removed, the spring 30 causes the valve stem 28 to return to the closed position, in which the inner seal 34 blocks the side opening 38 of the valve stem 28. COMPARATIVE EXPERIMENTS EXAMPLE OF THE INVENTION: COSMETIC COMPOSITION:
[0094] [00094] The cosmetic composition provided in a container according to the invention (example of the invention) and the cosmetic composition according to WO 2007/010487 provided in a regular aerosol can (comparative example) have been compared with respect to their properties of exhaustion.
[0095] [00095] The residual weights / amounts of cosmetic composition remaining in the respective containers were determined using a laboratory scale calibrated to a resolution of 0.01 gram. Before testing, all samples were stored for a minimum of 24 hours at 22 ° C +/- 3 ° C and at a relative humidity of 65% +/- 10%.
[0096] [00096] Table 1 refers to the cosmetic composition according to the comparative example and shows the residual weights / amounts of cosmetic composition in the container after the propellant is exhausted.
[0097] [00097] Tables 2 and 3 show the quantities / weights of cosmetic composition according to the example of the invention remaining in the container after one, two, three, six and dose months of storage and discharge of the composition at 25 ° C and 40 ° C, respectively, until the propellant is exhausted.
[0098] [00098] The results in tables 1 to 3 clearly show that the weight / amount of composition remaining in the container according to the invention is decreased (a) compared to the comparative example. In this way, the present invention leads to an increased level of exhaustion, that is to say the exhaustible amount of the Composition, according to the example of the invention is significantly increased. SENSORIAL TEST
[0099] [00099] In addition, sensory tests show the performance advantages of the cosmetic composition according to the invention compared to the state of the art (cf. comparative example). Sensory testing allows experienced and trained examiners to assess the effects of hair care products against a defined standard. In the course of the test, a sample of the tested product is applied to defined hair strands, which are then directly compared with the respective untreated hair strand with respect to various technical styling criteria. The test samples were applied to defined hair strands, thus allowing direct comparison under defined test conditions (identical hair structure, identical hair color etc.). The performance of the cosmetic composition according to the example of the invention was compared with the performance of the cosmetic composition of the comparative example. Both compositions were applied as foam conditioners with a subsequent rinse.
[0100] [000100] The sensory tests were performed by 30 experienced and trained examiners for the criteria listed in table 4. The numbers in the Table indicate how each criterion was judged on a scale between 0 and 10.
[0101] [000101] The extent of foam was assessed by applying amounts the size of a tennis ball of the respective cosmetic compositions on the palm of a hand and by monitoring the volume expansion of the compositions directly after the application of the foam on the palm.
[0102] [000102] The compactness of the foam was assessed by determining the level of difficulty in transferring the foam ball from one hand to the other.
[0103] [000103] The persistence of the foam was assessed by monitoring the degree to which the foam disappeared after rubbing the ball between the hands.
[0104] [000104] The brightness and tactile sensation of the hair was assessed using straight brown hair strands with hair lengths of 17 cm (including 2 cm rubber coating at one end), widths of 2.5 cm and weights of 3 g.
[0105] [000105] The visual volume and the definition of curls were evaluated with the use of abundantly curly black hair with lengths of 23 cm (including 3 cm rubber coating on one end) and weights of 20 g. The hair locks were treated with the respective cosmetic compositions, applying the same amount of product.
[0106] [000106] The tactile sensation of the hair was evaluated by sliding the hair between the fingers from the root to the tip. If the hair slid easily between the fingers, a smooth touch was assigned; if the hair was prevented from slipping easily between the fingers, this was referred to as a rough touch.
[0107] [000107] The visual volume was assessed by determining the volume of the hair.
[0108] [000108] The definition of bunches was assessed by determining the degree to which bunches were defined.
[0109] [000109] The brightness of the hair was evaluated by observing the light reflection on the hair under standard conditions (box equipped with "Linestra fluorescent tube", adjustment: fluorescent lighting).
[0110] [000110] The results in table 4 clearly show that the Composition, according to the invention leads to both, improved use experience and better hair performance with respect to the comparative example. According to the results in table 4, the example of the invention provides greater foam extension, greater foam compactness, better foam persistence, that is, the foam remains on the hands of a consumer longer, tactile sensation of smoother hair , greater visual volume of the hair, greater definition of curls and greater shine of the hair with respect to the comparative example.
[0111] [000111] It is explicitly stated that all features disclosed in the description and / or the claims are intended to be disclosed separately and independently of one another for the purpose of the original disclosure and also for the purpose of restricting the claimed invention regardless of the composition of the features in the modalities and / or in the claims. It is explicitly stated that all ranges of values or indications of groups of entities reveal each intermediate value or each intermediate entity for the purpose of the original disclosure and also for the purpose of restricting the claimed invention, in particular as limits of the value ranges.
[0112] [000112] The dimensions and values presented in the present invention should not be understood as being strictly limited to the exact numerical values mentioned. Instead, unless otherwise specified, each of these dimensions is intended to mean both the mentioned value and a range of functionally equivalent values around that value. For example, a dimension displayed as "40 mm" is intended to mean "about 40 mm".

权利要求:
Claims (11)
[0001]
Cosmetic composition in a container comprising at least an inner bag and an outer container, characterized by the fact that the outer container surrounds the inner bag and is filled with a propellant compressing the inner bag; and a valve mechanism fixed in the movable inner bag between an open position, in which a composition stored in the inner bag is allowed to be discharged as a foam by the pressure of the compressed gas, and a closed position, in which the composition is not allowed discharged, the composition in the inner pouch comprising a) 0.1 to 5% by weight of a cationic surfactant (A), b) 0.1 to 10% by weight of a fatty alcohol (B), and c) 0.1 to 10% by weight of carbon dioxide.
[0002]
Composition according to claim 1, characterized by the fact that it contains 70 to 98% by weight of water.
[0003]
Composition according to claim 1 or 2, characterized by the fact that the cationic surfactant (A) is selected from the group consisting of cetyltrimethylammonium salts, behenyltrimethylammonium salts, dimethyldysboammonium salts and stearylamido-propyldimethylamine.
[0004]
Composition according to one of claims 1 to 3, characterized in that it comprises at least one fatty alcohol having a melting point greater than 30 ° C and optionally at least one fatty alcohol having a melting point of 30 ° C or less, the weight ratio of fatty alcohols having melting points to fatty alcohols having melting points of 30 ° C or less is 0.25 or less in the case where the composition comprises at least one fatty alcohol having a melting point greater than 30 ° C and at least one fatty alcohol having a melting point of 30 ° C or less.
[0005]
Composition according to one of Claims 1 to 4, characterized in that the fatty alcohol with a melting point of 30 ° C or less is selected from the group consisting of unsaturated straight chain alcohols C12-C22, branched chain alcohols saturated C12-C18, C8-C12 saturated straight chain alcohols, and mixtures thereof.
[0006]
Composition according to one of claims 1 to 5, characterized in that it comprises a fatty alcohol having a melting point of 25 ° C or less.
[0007]
Composition according to one of claims 1 to 6, characterized by the fact that it comprises from 0.1% to 10% by weight, of a hair conditioning agent selected from the group consisting of cationic polymers and non-cross-linked non-volatile silicones, and their mixtures.
[0008]
Composition according to one of Claims 1 to 7, characterized by the fact that the inner pouch inside the container has flat side edges.
[0009]
Composition according to one of Claims 1 to 8, characterized in that the inner pouch comprises a bottom fold directed towards an upper end of the pouch.
[0010]
Composition according to one of claims 1 to 9, characterized in that the inner pouch comprises flat triangular portions each extending from a bottom edge to the side edges at an angle of substantially 45 °.
[0011]
Use of a container comprising at least one inner pouch and an outer pouch, characterized by the fact that the outer pouch surrounds the inner pouch and is filled with a propellant compressing the inner pouch; and a valve mechanism fixed in the movable inner bag between an open position, in which a composition stored in the inner bag is allowed to be discharged in the form of foam by the pressure of the compressed gas, and a closed position, in which the composition is not allowed. composition to be discharged, to discharge a cosmetic composition comprising a) 0.1 to 5% by weight of a cationic surfactant (A), b) 0.1 to 10% by weight of a fatty alcohol (B), and c) 0.1 to 10% by weight of carbon dioxide.

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法律状态:
2020-08-18| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2020-10-13| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-01-12| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/05/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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EP11165474|2011-05-10|

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GB11165474.5|2011-05-10|

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GB12166767.9|2012-05-04|

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EP12166767.9A|EP2535037B1|2011-05-10|2012-05-04|Cosmetic composition in a container|

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PCT/US2012/037243|WO2012154918A2|2011-05-10|2012-05-10|Cosmetic composition in a container|

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