Cosmetic composition containing a specific hyperbranched copolymer and oil

The cosmetic composition, featuring a hyperbranched copolymer and an oil with a specific polarity index, effectively reduces material transfer to contacting surfaces, addressing the issues of contamination and staining while maintaining skin efficacy.

JP7689919B2Active Publication Date: 2025-06-09DSM IP ASSETS BV
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Patent Information

Application Number
JP2021525599
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-11-26
Filing Date
2019-11-26
Publication Date
2025-06-09
Estimated Expiration
2039-11-26

AI Technical Summary

Technical Problem

Cosmetic compositions tend to move and transfer to other surfaces when in contact, leading to undesirable removal from the site of action, contamination of surfaces, and potential staining or damage to materials like fabrics and electronic screens.

Method used

A cosmetic composition combining a specific hyperbranched copolymer and an oil with a specific polarity index, which significantly reduces the movement of materials to contacting surfaces.

Benefits of technology

The composition achieves a substantial reduction in material transfer to contact surfaces, minimizing contamination and staining, and maintaining the composition's effectiveness on the skin while preserving the integrity of other surfaces.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present invention relates to a cosmetic composition comprising a hyperbranched copolymer of the monomers dodecenyl succinic anhydride, diisopropanolamine, and bisdimethylaminopropylamine with quaternary end groups, and an oil having a polarity index ranging from 50 to 30 mN / m or from 18 to 5 mN / m. The copolymer is used in a cosmetic composition containing at least one oil to reduce material transfer to contact surfaces. Preferably, the copolymer is Polyquaternium-110.
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Description

Detailed Description of the Invention

[0001] [Technical Field] The present invention relates to the field of cosmetics, in particular to the fields of skin care and sun care.

[0002] [Background of the Invention] In the field of cosmetics, the details of a cosmetic composition, i.e., a formulation, are highly susceptible to aspects of touch, feel, and vision.

[0003] A major problem is that the materials of such compositions can move to other surfaces when other surfaces come into contact with the composition, especially when applied to a surface, particularly the skin. Such movement is negative in two respects: First, the movement of the material is undesirable because it is removed from the site of action, such as skin treatment, moisturization, or protection. Second, the contact surface is contaminated by the material. There is a risk of staining, especially on fabrics (e.g., clothing). Furthermore, there is a risk of contamination of decorative or functional surfaces, which is negative with respect to their functionality, respectively, and their visual or aesthetic performance. In particular, mobile phones, screens, or touch screen displays are at risk of being adversely affected by such material movement.

[0004] [Summary of the Invention] Therefore, it is highly desirable to reduce such movement of cosmetic compositions from one surface to another when the surfaces come into contact.

[0005] Surprisingly, it has been found that the cosmetic composition of claim 1 can solve this problem.

[0006] It has been found that the combination of a specific hyperbranched copolymer and an oil with a specific polarity index significantly reduces the movement of the materials of such compositions to the contacting surfaces.

[0007] Further aspects of the invention are the subject of further independent claims. Particularly preferred embodiments are the subject of the dependent claims.

[0008] [Detailed Description of the Invention] In a first aspect, the present invention relates to a monomer (i) dodecenyl succinic anhydride (ii) diisopropanolamine (iii ) Bi succinimidomethyl dimethylaminopropylamine is a hyperbranched copolymer having a terminal group of the formula [Chemical formula] and a hyperbranched copolymer having a molecular weight Mn of 1200 to 4000 g / mol, and at least one oil having a polarity index in the range of 50 to 30 mN / m or in the range of 18 to 5 mN / m and relates to a cosmetic composition containing the same.

[0009] The term "molecular weight Mn" represents the number average molecular weight.

[0010] The term "oil" in this description preferably represents a non-water-soluble, organic, natural, or synthetic cosmetic-appropriate oil that is liquid or viscous at 23°C. In this context, "non-water-soluble substance" refers to the water solubility of the oil being 2% by weight or less at 20°C.

[0011] The term "polarity index" is a parameter known to those skilled in the art. The polarity of the oil is defined as the polarity index (interfacial tension) of the oil with respect to water. The interfacial tension, that is, the polarity index, can be measured, in particular, using a ring tensiometer (for example, Kruess K 10) that measures the interfacial tension in mN / m in the same manner as ASTM method D971-99a (2004).

[0012] The terms "preparation" or "formulation" are used in this specification as equivalents of the term "composition".

[0013] The term "material transfer" means, in this specification, the mass transfer of a cosmetic composition or some of its components when the cosmetic composition is applied to a surface and then the surface comes into contact with the surface of a different object and is separated again. Due to this contact, some materials are transferred from the first surface to the surface of a different object. The amount of material transferred can be determined by measuring the weight gain of the second object.

[0014] The hyperbranched copolymer is preferably prepared by the following consecutive steps: a1) Polymerizing monomer (i), monomer (ii), and monomer (iii) to obtain a polyester amide having a terminal dimethylamino group of the following formula

Chem.

[0015] For details regarding polymerization step a1) for obtaining each polyester amide having a terminal dimethylamino group of the following formula

Chem.

[0016] Preferably, in polymerization step a1), monomer (iii) is added to the mixture of monomers (ii) and (iii) with stirring, followed by heating.

[0017] Details of quaternization step a2) are also disclosed in European Patent No. 2794729 B1. Therefore, the entire content of European Patent No. 2794729 B1 is incorporated herein by reference.

[0018] Monomers in cosmetic compositions (i) Dodecenyl succinic anhydride (ii) Diisopropanolamine (iii ) Bi Dimethylaminopropylamine is a hyperbranched copolymer having a terminal group of the formula

Chemical formula

[0019] It is preferable that the molar ratio of monomer (i) to monomer (ii) is 5:1 to 0.5:1, particularly 4:1 to 1:1, preferably 3:1 to 3:2.

[0020] It is more preferable that the molar ratio of monomer (i) to monomer (iii) is 5:1 to 0.5:1, particularly 3:1 to 1:1, preferably 2.5:1 to 1.1:1.

[0021] The hyperbranched copolymer preferably has a number average molecular weight M of 1400 to 3000 g / mol, preferably 2100 to 2300 g / mol. n having.

[0022] Preferably, the hyperbranched polymer is polyquaternium-110, which is also identified by CAS number 1323977-82-7.

[0023] The cosmetic composition further comprises at least one oil having a polarity index in the range of 50 to 30 mN / m or in the range of 18 to 5 mN / m.

[0024] The oil is particularly an oil of the chemical classification of alkane, triglyceride, ester oil or glycol ester.

[0025] In particular, the oil is an oil selected from the group consisting of the oils listed in Table 1.

[0026]

Table 1

[0027] Particularly suitable oils are hydrocarbon-based oils such as aliphatic and / or aromatic oils preferably having 8 to 32, more particularly 15 to 20 carbon atoms. Examples are squalane, liquid paraffin, isocetane, isododecane, polyolefins such as polydecene, hydrogenated polyisobutene, di-alkylcyclohexane and mineral oil. Liquid paraffins such as low-viscosity paraffin (paraffinum perliquidum) having a viscosity of 25 to 80 mPa·s and / or high-viscosity paraffin (paraffinum subliquidum) as an oily liquid having a viscosity of 110 to 230 mPa·s are particularly suitable. For example, hydrogenated polyisobutene commercially available under the trade name Luvitol® Lite from BASF SE can also be used.

[0028] In one preferred embodiment, the cosmetic composition comprises at least one oil having a polarity index of 15 to 5 mN / m.

[0029] Preferably, the oil is selected from the group consisting of dibutyl adipate, castor oil, safflower oil, wheat germ oil, di-C12-13 alkyl tartrate, propylene glycol monoisostearate and coco glyceride, particularly selected from the group consisting of di-C12-13 alkyl tartrate, dibutyl adipate and coco glyceride.

[0030] Preferably, oils having a polarity index of 50 to 30 mN / m are selected from the group consisting of isoparaffin (C12 - C14), cycloparaffin, polydecene, squalane, hydrogenated polyisobutene, isohexadecane, paraffin oil perliquidum, polydimethylsiloxane, isoeicosane, ethoxydiglycol oleate, decyl oleate, dioctyl cyclohexane, paraffin oil subliquidum, paraffinum liquidum, isocetyl palmitate, cyclopentasiloxane, dicaprylyl carbonate, octyl isostearate, trimethylhexyl isononanoate, 2-ethylhexyl isononanoate, dicaprylyl ether, dihexyl carbonate, and octyl cocoate, and particularly selected from the group consisting of di-caprylyl carbonate, paraffinum liquidum, and squalane.

[0031] Oils having a polarity index range of 18 to 5 mN / m, particularly in the range of 15 to 5 N / m, are more preferred than oils having a polarity index in the range of 50 to 30. The most preferred oils are di-C12 - 13 alkyl tartrate and dibutyl adipate.

[0032] The total amount of the oil having a polarity index in either the range of 50 to 30 mN / m or the range of 18 to 5 mN / m is preferably in the range of 2 to 20% by weight, particularly 3 to 15% by weight, based on the total weight of the cosmetic composition.

[0033] The cosmetic composition more preferably further contains at least one emulsifier, preferably an anionic emulsifier. Preferably, the anionic emulsifier is an anionic emulsifier selected from the group consisting of potassium cetyl phosphate, sodium cetearyl sulfosuccinate, sodium stearoyl glutamate, sodium stearoyl lactate, glyceryl citrate stearate, and sodium cocoyl isethionate.

[0034] Potassium cetyl phosphate is commercially available as Amphisol® K from DSM Nutritional Products Ltd, Kaiseraugst.

[0035] The amount of the emulsifier is preferably in the range of 0.1 to 6.0% by weight, more preferably 0.25 to 5.0% by weight, particularly 0.5 to 4.0% by weight, based on the total weight of the cosmetic composition.

[0036] The composition preferably does not contain sulfates.

[0037] Thus, the cosmetic composition preferably particularly does not contain sulfates from the group consisting of alkyl sulfates, alkyl ether sulfates, alkyl amide ether sulfates, alkyl aryl polyether sulfates and monoglyceride sulfates and mixtures thereof.

[0038] As used herein, the term "free of", for example, "free of sulfates", is used to mean that each substance is present only in amounts less than 0.5% by weight, particularly less than 0.1% by weight, more particularly less than 0.05% by weight, based on the weight of the composition. Preferably, "free of" means that each substance is not present at all in the composition.

[0039] The term "free of sulfates" as used herein means that the composition does not contain any anionic surfactant having a terminal anion group of the following formula

Chem.

[0040] The cosmetic composition preferably does not contain a cationic emulsifier. Typical examples of such cationic emulsifiers are isostearamidopropyldimethylamine, stearalkonium chloride, stearamidoethyldiethylamine, behentrimonium methosulfate, behenoyl PG-trimonium chloride, cetrimonium bromide, behenamidopropyldimethylamine behenate, brassicaamidopropyldimethylamine, stearamidopropyldimethylamine stearate, cocoamidopropyl PG-dimonium chloride, distearoylethylhydroxyethylmonium methosulfate, dicocoylethylhydroxyethylmonium methosulfate, distearoylethyl dimonium chloride, sheabutteramidopropyltrimonium chloride, behenamidopropyldimethylamine, brassicyl isoleucinate esylate, acrylamidopropyltrimonium chloride / acrylate copolymer, linoleamidopropyl ethyldimonium ethosulfate, dimethyllauramine isostearate, isostearamidopropyl lauryl acetodimonium chloride, especially behentrimonium chloride, distearyldimonium chloride, cetrimonium chloride, stearotrimonium chloride and palmitamidopropyltrimonium chloride.

[0041] The cosmetic composition may further contain cosmetic carriers, excipients and diluents commonly used in the skin care industry, as well as additives and active ingredients. Suitable for use in the cosmetic composition of the present invention are described, without limitation herein, for example, in the International Cosmetic Ingredient Dictionary & Handbook by the Personal Care Product Council (http: / / www.personalcarecouncil.org / ), which is accessible by the online INFO BASE (http: / / online.personalcarecouncil.org / jsp / Home.jsp).

[0042] Such possible components of the cosmetic composition are, in particular, preservatives, antioxidants, fatty substances / oils, thickeners, softeners, light screening agents, moisturizers, fragrances, co-surfactants, fillers, sequestering agents, cationic, nonionic or amphoteric polymers or mixtures thereof, acidifying or basifying agents, viscosity modifiers, and natural hair nutrients such as vegetable substances, fruit extracts, sugar derivatives and / or amino acids, or any other optional components usually incorporated in the cosmetic composition, etc., which enhance performance and / or consumer acceptability. The necessary amounts of auxiliaries and additives can be easily selected by those skilled in the art based on the desired product without being limited herein and are exemplified in the examples.

[0043] The additional components can be added to the oily phase, to the aqueous phase, or separately, as considered appropriate.

[0044] In an advantageous embodiment, the composition according to the invention comprises 50% to 99%, preferably 60% to 98%, more preferably 70% to 98%, for example in particular 80% to 95%, of a carrier, based on the total weight of the cosmetic composition.

[0045] In a particular advantageous embodiment, the carrier further consists of at least 40% by weight, more preferably at least 50% by weight, most preferably at least 55% by weight of water, for example in particular 55 to 90% by weight of water.

[0046] Furthermore, it is preferred that the cosmetic composition comprises at least one UV filter. The UV filter can be a liquid or solid UV filter. The UV filter can be a UV-A or UV-B filter.

[0047] A suitable liquid UV filter absorbs light in the range of UVB (280 - 315 nm) and / or UVA (315 - 400 nm) and is liquid at ambient temperature (i.e., 25 °C). Such liquid UV filters are well-known to those skilled in the art and include, in particular, cinnamates such as octyl methoxycinnamate (PARSOL® MCX) and isoamyl methoxycinnamate (Neo Heliopan® E 1000), salicylates such as homosalate (3,3,5 - trimethylcyclohexyl 2 - hydroxybenzoate, PARSOL® HMS) and ethylhexyl salicylate (also known as ethylhexyl salicylate, 2 - ethylhexyl 2 - hydroxybenzoate, PARSOL® EHS), acrylates such as octocrylene (2 - ethylhexyl 2 - cyano - 3,3 - diphenylacrylate, PARSOL® 340) and ethyl 2 - cyano - 3,3 - diphenylacrylate, esters of benzalmalonate, in particular dialkyl benzalmalonate such as di(2 - ethylhexyl) 4 - methoxybenzalmalonate and polysilicone 15 (PARSOL® SLX), dialkyl esters of naphthalate such as diethoxyhexyl 2,6 - naphthalate (Corapan® TQ), silingylidenemalonate such as diethylhexyl silingylidenemalonate (Oxynex® ST liquid), and benzotriazolyl dodecyl p - cresol (Tinoguard® TL), as well as benzophenone - 3 and droxmetrizole trisiloxane.

[0048] Particularly advantageous liquid UV filters are octyl methoxycinnamate, homosalate, ethylhexyl salicylate, octocrylene, diethoxyhexyl 2,6 - naphthalate, diethylhexyl silingylidenemalonate, benzotriazolyl dodecyl p - cresol, benzophenone - 3, droxmetrizole trisiloxane, polysilicone - 15 and mixtures thereof.

[0049] Suitable solid UV filters absorb light in the UVB and / or UVA range and are solid at ambient temperature (i.e., 25 °C). They are especially solid organic UV filters. Particularly suitable solid UV filters are those from the group consisting of bis-ethyl-hexyloxyphenol methoxyphenyl triazine, butyl methoxydibenzoylmethane, tetramethyl methylene bisbenzotriazolyl butylphenol, diethylamino hydroxybenzoyl hexyl benzoate, ethylhexyl triazone, diethylhexyl butamidotriazone, 4-methylbenzylidene camphor and 1,4-di(benzoxazol-2'-yl)benzene.

[0050] The amount of each organic UV filter is preferably in the range of 0.1 to about 6% by weight, preferably 0.5 to 5% by weight, most preferably 1 to 4% by weight, based on the total weight of the cosmetic composition.

[0051] In the case of sun care compositions, the total amount of organic UV filters strongly depends on the targeted UV protection of the composition and is typically in the range of 1 to 50% by weight, preferably 5 to 40% by weight, based on the total weight of the composition.

[0052] A sun cream having an SPF of 15 (SPF = sun protection factor) preferably contains, for example, a total amount of 4 to 20% by weight, more preferably 7 to 15% by weight, of organic UV filters, based on the total weight of the composition.

[0053] A sun cream having an SPF of 30 preferably contains, for example, a total amount of 10 to 40% by weight, more preferably 15 to 25% by weight, of organic UV filters, based on the total weight of the composition.

[0054] A sun cream having an SPF of 50 preferably contains, for example, a total amount of 15 to 50% by weight, more preferably 20 to 40% by weight, of organic UV filters, based on the total weight of the composition.

[0055] In all embodiments of the present invention, particularly suitable thickeners are xanthan gum, gellan gum, and / or carboxymethyl cellulose. In all embodiments of the present invention, most preferably, the thickener is xanthan gum or gellan gum.

[0056] Such thickeners are preferably used in an amount (total amount) selected in the range of 0.1 to 1% by weight, more preferably 0.1 to 0.5% by weight, based on the total weight of the cosmetic composition.

[0057] It is preferred that the composition does not contain polyvinylpyrrolidone (PVP), particularly alkylated polyvinylpyrrolidone, such as copolymers of N-vinyl-pyrrolidone and hexadecane or eicosasene, such as those available as Antaron V-216 or Antaron V-220.

[0058] The cosmetic composition according to the present invention generally has a pH in the range of 3 to 10, preferably in the range of 4 to 8, and most preferably in the range of 4 to 7.5. The pH can be easily adjusted as desired by an appropriate acid, such as citric acid, or a base, such as NaOH, according to standard methods in the art.

[0059] The cosmetic composition preferably does not contain sulfates and / or parabens and / or silicone oils and / or silicone surfactants and / or methylisothiazolinone and / or polyvinylpyrrolidone (PVP), particularly alkylated polyvinylpyrrolidone.

[0060] The cosmetic composition is preferably a topical composition.

[0061] As used herein, the term "topical" is understood to mean, in particular, external application to keratinous substances on the skin, scalp, eyelashes, eyebrows, nails, mucous membranes, and hair, preferably the skin.

[0062] Since the compositions for topical use are intended for topical application, it is well understood that they include physiologically acceptable media, i.e., media that are compatible with keratinous substances such as skin, mucous membranes and keratin fibers. In particular, the physiologically acceptable media are cosmetically acceptable carriers.

[0063] The term "cosmetically acceptable carrier" refers to all carriers and / or excipients and / or diluents conventionally used in cosmetic compositions, especially in sun care products and the like.

[0064] Preferably, the cosmetic composition is a skin care preparation, a decorative preparation or a functional preparation.

[0065] Examples of skin care preparations are, in particular, photoprotective preparations, anti-aging preparations, preparations for the treatment of photoaging, body oils, body lotions, body gels, treatment creams, skin protection ointments, skin powders, moisturizing gels, moisturizing sprays, face and / or body moisturizers, preparations for sunburn (i.e., compositions for artificial / sunless tanning and / or browning of human skin), such as self-tanning creams, and preparations for skin whitening.

[0066] Examples of functional preparations are cosmetic or pharmaceutical compositions containing active ingredients, such as, but not limited to, hormonal preparations, vitamin preparations, vegetable extract preparations and / or anti-aging preparations.

[0067] The cosmetic composition is preferably a skin care composition.

[0068] In certain embodiments, the cosmetic composition is a sun care composition. The sun care composition is a light protection preparation (sun care product), for example, a sun protection milk having an SPF (sun protection factor), a sun protection lotion, a sun protection cream, a sun protection oil, a sun block or a day care cream. Sun protection creams, sun protection lotions, sun protection milks and sun protection preparations are of particular interest.

[0069] The cosmetic composition according to the invention can be in the form of a suspension or dispersion in a solvent or fatty substance, or in the form of an emulsion or microemulsion (in particular of the oil-in-water (O / W-), water-in-oil (W / O-), silicone-in-water (Si / W-) or water-in-silicone (W / Si-) type, PIT-emulsion, multilayer emulsion (for example of the oil-in-water-in-oil (O / W / O-) or water-in-oil-in-water (W / O / W-) type), pickering emulsion, hydrogel, alcohol gel, lipogel, monolayer or multiphase solution or porous dispersion), or in other conventional forms, and can be applied as a mask or as a spray or with a pen.

[0070] Preferred cosmetic compositions in all embodiments of the invention are emulsions containing an oily phase and an aqueous phase, for example, in particular O / W, W / O, Si / W, W / Si, O / W / O, W / O / W multilayer or pickering emulsions.

[0071] The total amount of the oily phase present in such an emulsion (i.e., the phase containing all oils and fats including oils having a polarity index in the range of 50 to 30 mN / m or in the range of 18 to 5 mN / m) is preferably at least 10% by weight, for example in the range of 10 to 60% by weight, preferably in the range of 15 to 50% by weight, most preferably in the range of 15 to 40% by weight, based on the total weight of the cosmetic composition.

[0072] The amount of the aqueous phase present in such an emulsion is preferably at least 20% by weight, for example in the range of 40 to 90% by weight, preferably in the range of 50 to 85% by weight, most preferably in the range of 60 to 85% by weight, based on the total weight of the cosmetic composition.

[0073] More preferably, the cosmetic composition according to the present invention is in the form of an oil-in-water (O / W) emulsion containing an oil phase dispersed in an aqueous phase in the presence of an O / W- or Si / W-emulsifier, respectively, because such a composition shows a significantly remarkable decrease in the transfer of each composition to the surface. The preparation of such O / W emulsions is well known to those skilled in the art.

[0074] The composition in the form of an O / W emulsion according to the present invention can be provided, for example, in the form of all formulations for O / W emulsions, such as in the form of a serum, milk or cream, and they are prepared by conventional methods. The composition which is the subject of the present invention is preferably intended for topical application, and in particular, it can constitute a dermatological or cosmetic composition, for example, intended to protect human skin from the adverse effects of UV radiation (such as anti-wrinkle formation, anti-aging, moisturizing, anti-sun protection, etc.).

[0075] In the cosmetic composition, together with an oil having a polarity index in either the range of 50 to 30 mN / m or the range of 18 to 5 mN / m, a monomer (i) dodecenyl succinic anhydride (ii) diisopropanolamine (iii ) Bi succinimidomethyl dimethylaminopropylamine is a hyperbranched copolymer having a terminal group of the formula

Chem.

[0076] Accordingly, a further aspect of the invention is the monomer in a cosmetic composition comprising at least one oil having a polarity index in either the range of 50 to 30 mN / m or the range of 18 to 5 mN / m for reducing material transfer to the contact surface. (i) Dodecenyl succinic anhydride (ii) Diisopropanolamine (iii ) Bi Dimethylaminopropylamine is a hyperbranched copolymer having a terminal group of the formula

Chem.

[0077] The amount of material transfer is determined by measuring the weight of the object (second object) before and after contact. Any weight increase after contact is due to material transfer from the first to the second object. The reduction in material transfer is determined by comparing the composition according to the invention with each respective (not according to the invention) composition that does not contain the above hyperbranched copolymer and each respective oil. The reduction is expressed as a percentage of the material transfer of the two measurements.

[0078] It has been found that a reduction of more than 50%, more than 60%, especially more than 70% can be obtained.

[0079] The cosmetic composition is applied to the first surface. The surface is preferably the skin, especially human skin. It has been found that using a porous sponge instead of the skin is a good approach to simulate material transfer from the skin to another surface.

[0080] The surface of the object to be contacted (the second object) is preferably a glass surface or a plastic or cloth surface.

[0081] When the surface is cloth, since the cosmetic composition may cause bleeding on the cloth, it is advantageous to avoid unnecessary transfer of the cosmetic composition to the cloth, especially clothing.

[0082] In particular, the contacting surface (i.e., the surface of the second object) is a glass surface.

[0083] Most preferably, the contacting surface (i.e., the surface of the second object) is one used for an optical glass, such as a magnifying glass or sunglasses, or a display of a smartphone display of a mobile phone, a computer device or a tablet screen.

[0084] By reducing the material transfer of the cosmetic composition, in particular, it is possible to reduce or even avoid the problem of marks, especially fingerprints, left on glass such as the optical glass or vision glass of the device when the glass surface is contacted by a finger. In particular, this can greatly reduce or even avoid any undesirable effects on the light rays transmitted through the glass by the material left on the surface.

[0085] Furthermore, it is possible to strongly reduce the marks left on aesthetic surfaces, such as mirrors, or highly glossy or highly matte surfaces, such as the top coats of a car or furniture or part of art. This is very advantageous because such surfaces require a large amount of cleaning and maintenance when they come into contact with the skin to which the cosmetic composition has been applied, especially when they are contacted by a finger that has previously been in contact with the cosmetic composition.

[0086] A display unit, such as a display, screen, or monitor of a mobile phone, a touch screen of a laptop, mobile phone, or tablet, can strongly reduce the traces left on the surface. As a result, readability can be improved. Since the functionality of the touch screen depends on the surface aspect, the present invention helps to improve a certain touch screen functionality without overly requiring the cleaning of the glass surface.

[0087] The reduction of material transfer greatly reduces the labor and cost associated with the cleaning of the surface when they come into contact with the skin.

[0088] [Examples] The present invention is further illustrated by the following experiments. These examples are illustrative and are not intended to limit the scope of the invention in any way.

[0089] [Preparation of Hyperbranched Copolymer (HBC1)] According to Example 3 of European Patent No. 2794729 B1, 237.59 g of N,N-bis(N’N’-dimethylaminopropyl)amine, 112.6 g of diisopropanolamine, and 426.89 g of dodecenyl succinic anhydride were used to prepare a hyperbranched copolymer HBC1 of monomer dodecenyl succinic anhydride, diisopropanolamine, and bisdimethylaminopropylamine. After heating and reducing the pressure, a residual carboxylic acid content (titration analysis) of less than 0.3 meq / g, AV = 9.8 mg KOH / g, and an amine content (titration analysis) of 2.99 meq / g, and a molecular weight Mn = 2240 were obtained. 1 The product was reacted with sodium chloroacetate in water and stirred at 80 °C until complete conversion of the chloroacetate was shown by 1H-NMR analysis, and a hyperbranched copolymer HBC1 having the terminal groups of the following formula [Chemical formula] and having a molecular weight Mn of 2.3 kDa was obtained.

[0090] The hyperbranched copolymer HBC1 was used as a 45% aqueous solution in the following experiments.

[0091] As a reference, the hyperbranched copolymer Hybrane S1200 was used. Hybrane S1200 is a hyperbranched copolymer but has a different structure from HPC1 required for the present invention. In Table 4, Hybrane S1200 is abbreviated as Ref-HBC and is used as a 45% aqueous solution.

[0092] [Material transfer] Material transfer was determined by the sponge test outlined below. - Cut a sponge cloth (Weitawip Claire from Weita AG: cellulose / cotton fiber mixture, 200 g / m 2 , thickness 5 mm) into 76 mm × 26 mm. - Measure the tare weight of the sponge sample. - Apply 350 mg of each sample (= cosmetic composition) and distribute it evenly on the 76 mm × 26 mm sponge surface. - Measure the weight of the sponge to which the sample has been applied. - Measure the tare weight of a microscope slide (glass plate 76 mm × 26 mm × 1 mm). - Place a microscope slide (glass plate) on the sponge on which a 500 g balance weight (height: 6.3 cm, diameter of the contact area: 3.7 cm) has been placed for 10 seconds to apply a specific pressure to the sample. - Carefully remove the microscope slide vertically. - Measure the weight of the removed microscope slide, and thus measure the amount of sample transferred to the glass plate. - Repeat the test 10 times for each composition to obtain the average value of each sample.

[0093] [Preparation of cosmetic composition] The components (parts by weight) of the oil phase according to Tables 2 to 4 were combined and heated to 85 °C. The components (parts by weight) of the aqueous phase according to Tables 2 to 4 were combined and stirred until the xanthan gum was completely dissolved, and then heated to 80 °C. The two phases were combined and homogenized at 10,000 rpm for 1 minute. The emulsion was cooled to 35 °C under gentle stirring. When a hyperbranched copolymer is used in the examples, the respective hyperbranched polymers (parts by weight) are added to the emulsion under stirring at this point. Stirring was continued until the emulsion reached room temperature. The amounts of the components of the composition used (total up to 100% by weight) were selected so that each composition had a total weight of 70 grams.

[0094]

Table 2

[0095]

Table 3

[0096] The results in Table 2 clearly show that in samples with a specific hyperbranched copolymer, there is a significant decrease in material transfer compared to each reference example (「Ref.」) without said copolymer. Furthermore, the results in Table 2 also clearly show the influence of the polarity index of the oil used in reference examples Ref.7 and Ref.8 on the decrease in material transfer, compared to other Examples 1 to 6.

[0097]

Table 4

[0098] The results in Table 3 show that samples (7, 8, Ref.9) containing an alkylated polyvinylpyrrolidone, such as a copolymer of N - vinylpyrrolidone and hexadecane (Antaron V - 216), have a lower decrease in material transfer than each sample (2, 4, Ref.8) without an alkylated polyvinylpyrrolidone.

[0099]

Table 5

[0100] When comparing with Example 4 with Ref.10 in Table 4, it is shown that when hyperbranched copolymers with different structures are used, a specific hyperbranched copolymer has a significantly higher reduction in material transfer.

[0101] The positive results and effects of the reduction in material transfer by the composition according to the present invention in the above experiments can also be found when the above composition is applied to the tip of the finger, and such a finger touches the touch screen of the Samsung S9 display, and the amount of traces on the screen is visually evaluated. The present invention includes the following [Form 1] to [Form 15]. [Form 1] Monomer (i) Dodecenyl succinic anhydride (ii) Diisopropanolamine (iii) Bisdimethylaminopropylamine is a hyperbranched copolymer having a terminal group of the formula

Chemical formula

Chemical formula

Chem.

Claims

1. A monomer (i) Dodecenyl succinic anhydride (ii) Diisopropanolamine (iii) Bis(dimethylaminopropyl)amine is a hyperbranched copolymer, having a terminal group of the formula 【Chemical 1】 and having a number average molecular weight Mn of 1,200 to 4,000 g / mol, and at least one oil having a polarity index in the range of 18 to 5 mN / m A cosmetic composition comprising: wherein the polarity index of the oil is the interfacial tension of the oil with respect to water and is determined using a ring tensiometer in the same manner as ASTM method D971-99a (2004).

2. The cosmetic composition according to claim 1, wherein the molar ratio of the monomer (i) to the monomer (ii) is 5:1 to 0.5:

1.

3. The cosmetic composition according to claim 1 or 2, wherein the molar ratio of the monomer (i) to the monomer (iii) is 5:1 to 0.5:

1.

4. The cosmetic composition according to any one of claims 1 to 3, wherein the hyperbranched copolymer has a number average molecular weight Mn of 1,400 to 3,000 g / mol.

5. The cosmetic composition according to any one of claims 1 to 4, wherein the hyperbranched copolymer is polyquaternium-110.

6. The cosmetic composition according to any one of claims 1 to 5, wherein the oil is an oil having a polarity index of 15 to 5 mN / m.

7. The cosmetic composition according to any one of claims 1 to 6, wherein the oil is di-C12-13 alkyl tartrate or dibutyl adipate.

8. The cosmetic composition according to any one of claims 1 to 7, which does not contain polyvinylpyrrolidone (PVP).

9. The cosmetic composition according to any one of claims 1 to 8, wherein the cosmetic composition is a skin care composition.

10. The cosmetic composition according to any one of claims 1 to 9, wherein the cosmetic composition is a sulfate-free cosmetic composition.

11. The cosmetic composition according to any one of claims 1 to 10, which does not contain a cationic emulsifier.

12. In a cosmetic composition comprising at least one oil having a polarity index in either the range of 50 to 30 mN / m or the range of 18 to 5 mN / m for reducing material transfer to a contact surface, a monomer (i) dodecenyl succinic anhydride (ii) diisopropanolamine (iii) bisdimethylaminopropylamine which is a hyperbranched copolymer of formula 【Chemical 2】 having end groups of and having a molecular weight Mn of 1200 to 4000 g / mol, a hyperbranched copolymer use of wherein the polarity index of the oil is the interfacial tension of the oil with respect to water and is determined using a ring tensiometer in the same manner as ASTM method D971-99a (2004).

13. Use according to claim 12, characterized in that the contact surface is a glass surface.

14. Use according to claim 12 or 13, characterized in that the contact surface is a display of a mobile phone, a computer device or a tablet.

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