Long-lasting compositions containing an acid-functional silicone elastomer and a sequenced copolymer

By incorporating a silicone elastomer with acid function and a sequenced copolymer into cosmetic compositions, the challenges of achieving both long-lasting, transfer-resistant properties and good application comfort are addressed, resulting in enhanced cosmetic performance.

FR3132844B1Active Publication Date: 2025-05-16LOREAL SA
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Patent Information

Application Number
FR2022001516
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-21
Publication Date
2025-05-16
Estimated Expiration
2042-02-21

AI Technical Summary

Technical Problem

Existing cosmetic compositions, such as foundations and lip products, often struggle to balance long-lasting, transfer-resistant properties with good application comfort and appearance.

Method used

The use of compositions containing a silicone elastomer with acid function and a sequenced copolymer, which enhance stability, adhesion, and resistance to transfer while improving application properties.

Benefits of technology

These compositions demonstrate improved stability, wear resistance, transfer resistance, adhesion, and application comfort, maintaining a coherent appearance on keratinous materials for an extended period.

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Abstract

Long-lasting compositions containing an acid-functional silicone elastomer and a sequenced copolymer. Compositions including at least one acid-functional silicone elastomer and at least one sequenced copolymer, as well as manufacturing processes for these compositions and processes for applying these compositions to a keratinous material, are proposed. Figure for the abstract: NONE
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Description

Title of the invention: Long-lasting compositions containing an acid-functional silicone elastomer and a block copolymer FIELD OF THE INVENTION

[0001] The present invention relates to compositions comprising at least one acid-functional silicone elastomer and at least one block copolymer. Among other improved or beneficial properties, these compositions exhibit surprisingly good stability, long wear, adhesion and / or transfer resistance properties. discussion of the context

[0002] Many cosmetic compositions, including pigmented cosmetics such as foundations, mascaras, and lipsticks, have been formulated with the goal of possessing long-lasting properties upon application. Unfortunately, many of these compositions generally do not possess both good long-lasting / transfer-resistant properties and good application, comfort, and / or appearance (e.g., matte or glossy properties) properties.

[0003] For example, with respect to lip compositions, commercial products containing silicone resins such as MQ resins are known. Such products are known to provide good long-lasting properties and / or transfer resistance. However, these products have poor application properties and / or poor feel upon application (e.g., a rough feel). Therefore, a second composition (top coat) is separately applied over these products to improve the poor properties of the compositions and make the products acceptable to consumers. In addition, the top coat composition must be continually reapplied to keep the product acceptable to consumers, meaning that the products are effectively not "long-lasting" as they require constant maintenance and reapplication.

[0004] Similarly, with respect to foundations, these products may exhibit good long-lasting and / or transfer-resistant properties. However, these long-lasting / transfer-resistant products may have poor application and / or poor feel upon application, as well as poor appearance properties.

[0005] Compositions containing a block copolymer are known. For example, US 8,778,323, US 2007 / 0 258 923, US 2014 / 0 105 838, EP 2 707 404, WO 2012 / 156 630, US 2014 / 0 105 838, WO 2013 / 190 708, CN 104 619 307, EP 2 863 871, US 2015 / 0182440, and WO 2013 / 191303 may be relevant.

[0006] Furthermore, compositions containing silicone elastomers are known. For example, documents US 8 987 373, US 9 150 703, US 9 150 726, US 9 175 139, US 9 181 433, US 9 200 146, US 2015 / 0 073 059, WO 2012 / 098 116, US 2007 / 0 053,859, US 7,790,148, US 8,697,039, US 2010 / 0 297 050, US 7 378 103, CN1 781 476, EP 1 579 845, US 2005 / 0 220 728 and EP 2 665 522 may be relevant.

[0007] However, there remains a need for improved compositions having improved cosmetic properties, particularly good stability, wear, transfer resistance, adhesion, feel and / or appearance upon application.

[0008] Accordingly, one aspect of the present invention is a composition for caring for and / or making up and / or treating keratinous materials which has good cosmetic properties such as, for example, good stability, good wear resistance, good transfer resistance, good adhesion, good feel and / or appearance properties upon application. Summary of the invention

[0009] The present invention relates to compositions comprising at least one acid-functional silicone elastomer and at least one block copolymer.

[0010] The present invention also relates to emulsion compositions comprising water, at least one acid-functional silicone elastomer and at least one block copolymer.

[0011] The present invention also relates to anhydrous compositions comprising at least one acid-functional silicone elastomer and at least one block copolymer.

[0012] The present invention also relates to colored compositions comprising at least one coloring agent, at least one acid-functional silicone elastomer and at least one block copolymer.

[0013] The present invention also relates to methods for treating, caring for and / or making up keratinous materials such as, for example, the lips, the skin or the eyelashes, by applying compositions of the present invention to a keratinous material in an amount sufficient to treat, care for and / or make up the keratinous material.

[0014] The present invention also relates to methods of enhancing the appearance of keratinous materials such as, for example, lips, skin or eyelashes, by applying compositions of the present invention to a keratinous material in an amount sufficient to enhance the appearance of the keratinous material.

[0015] It is understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not restrictive as to the invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] As used herein, the term "at least one" means one or more and therefore includes individual components as well as mixtures / combinations.

[0017] “Film former” or “film-forming agent” as used herein, means any material such as, for example, a polymer or a resin which leaves a film on the substrate to which it is applied.

[0018] “Polymer” as used herein means a compound consisting of at least two monomers.

[0019] “Keratinous materials” includes keratin-containing materials such as hair, skin, eyebrows, lips and nails.

[0020] “Substituted” as used herein (unless otherwise indicated), means comprising at least one substituent. Non-limiting examples of substituents include atoms, such as oxygen atoms and nitrogen atoms, as well as functional groups, such as hydroxyl groups, ether groups, alkoxy groups, acyloxyalkyl groups, oxyalkylene groups, polyoxyalkylene groups, carboxylic acid groups, amine groups, acylamino groups, amide groups, halogen-containing groups, ester groups, thiol groups, sulfonate groups, thiosulfate groups, siloxane groups, hydroxyalkyl groups, and polysiloxane groups. The substituent(s) may be further substituted.

[0021] “Volatile” as used herein means having a flash point less than about 100°C.

[0022] “Non-volatile” as used herein means that the flash point is greater than about 100°C.

[0023] “Anhydrous” means that the compositions contain less than 1% water. Preferably, the compositions of the present invention contain less than 0.5% water, and preferably no water.

[0024] By "transfer" is meant in the present document the displacement of a fraction of a composition that has been applied to a keratinous material by contact with another substrate, whether of the same or different nature. For example, when a composition such as an eye shadow, an eyeliner or a mascara has been applied, the composition may be transferred to the hands by rubbing or by contact of the hands with the eyes. As a further example, when a composition such as a lipstick has been applied, the composition may be transferred to the teeth or hands, or to the cheek of another person. Regardless of the type of composition, the composition may also be transferred from the keratinous material to another substrate. ratineer on which it has been applied to another substrate such as napkins, collars or necklaces, glasses, cups or other containers.

[0025] "Transfer resistance" as used herein refers to the transfer resistance quality of a composition. To determine transfer resistance, one may evaluate and compare the amount of composition transferred from a keratinous material to a substrate. For example, a composition may be transfer resistant if, after application to a keratinous material such as lips, skin, or eyelashes and contact with a substrate, a majority of the composition remains on the user. Further, the amount transferred may be compared to that transferred by other compositions, such as commercially available compositions. In a preferred embodiment of the present invention, little or no composition is transferred to the substrate from the keratinous material.

[0026] “Long-lasting” compositions as used herein refer to compositions wherein the compositions, after application to a keratinous material, do not transfer or spread after contact with another substrate and retain a consistent appearance on the keratinous material for an extended period of time. “Long-lasting” compositions, as used herein, may also refer to compositions whose color remains the same or substantially the same as at the time of application, as seen by the naked eye, after an extended period of time. Long-lasting properties may be evaluated by any method known in the art for evaluating such properties.For example, long-lasting properties may be assessed by a test involving the application of a composition to keratinous materials such as skin, eyelashes, or lips and the evaluation of the color of the composition after an extended period of time. For example, the color of a composition may be evaluated immediately after its application to the keratinous material and these characteristics may then be re-evaluated and compared after a period of time. In addition, these characteristics may be evaluated relative to other compositions, such as commercially available compositions. In addition, long-lasting properties may be evaluated by applying a sample, allowing it to dry, and then abrading the sample to determine sample removal / loss.

[0027] The composition of the present invention may be in any form, liquid or non-liquid (semi-solid, soft solid, solid, etc.). For example, it may be a paste, a solid, a gel or a cream. It may be an emulsion, such as an oil-in-water or water-in-oil emulsion, a multiple emulsion, such as an oil-in-water-in-oil emulsion or a water-in-oil-in-water emulsion, or a solid, rigid or flexible gel. The composition of the invention may, for example, comprise an external or continuous fatty phase. The composition may also be a molded or cast composition in the form of a stick or dish.

[0028] The compositions and methods of the present invention may comprise, consist of, or consist essentially of the essential elements and limitations of the invention described herein, as well as any additional or optional ingredients, components, or limitations described herein or otherwise useful in personal care.

[0029] In accordance with the present invention, compositions comprising at least one acid-functional silicone elastomer and at least one block copolymer are provided.

[0030] When the compositions are foundations, the compositions preferably have improved or beneficial non-transfer properties with respect to water, sweat, sebum, saliva and / or oil, matting properties, and / or comfort on application.

[0031] When the compositions are mascaras, the compositions preferably have improved or beneficial non-transfer properties against water, sweat, sebum, saliva and / or oil, shine properties, and / or glide upon application.

[0032] When the compositions are lip compositions, the compositions preferably have improved or beneficial non-transfer properties against water, sweat, sebum, saliva and / or oil, and / or shine properties.

[0033] Acid-functional silicone elastomer

[0034] In accordance with the present invention, compositions comprising at least one acid-functional silicone elastomer are provided. An “acid-functional silicone elastomer” is a compound that comprises a siloxy (Si-O) group linked to another moiety having one or more acid functional groups, preferably one or more carboxy functional groups. Acid-functional silicone elastomers are described or referenced in US patent application 2016 / 0 199 286.

[0035] Preferably, the acid-functional elastomer has the general formula: ABA or BAB, wherein each A independently comprises a polysiloxane moiety having at least two siloxy (Si—O) groups and wherein each B independently comprises a moiety, or a precursor thereof, having at least two carboxyl groups and wherein B is bonded to a silicon atom in A.

[0036] According to preferred embodiments, the acid-functional elastomer has at least two siloxy (Si—O) groups and at least two carboxyl groups and is the product of a reaction of a first component having at least one reactive group; a second component having at least one reactive group; and a third component having at least two reactive groups reacting with the reactive groups of the first and second components to bond the first component to the second component.

[0037] According to preferred embodiments, the at least one reactive component of the first component and the second component are independently selected from a hydroxyl group or an amine group and wherein the at least two reactive groups of the third component are anhydride groups. In more specific embodiments, the first and second components are selected from siloxanes having at least one hydroxyl group or organic alcohols having at least one hydroxyl group and the third component is a siloxane having at least two terminal anhydride groups. In other more specific related embodiments, the first and second components are selected from siloxanes having at least one amine group or organic amines having at least one amine group and the third component is a siloxane having at least two pendant anhydride groups.

[0038] According to preferred embodiments, the at least one reactive component of the first component and the second component are anhydride groups and wherein the at least two reactive groups of the third component are hydroxyl groups or amine groups. In more specific related embodiments, the first and second components are siloxanes and the anhydride groups of these first and second components are pendant. In some of these embodiments, the third component is selected from i) an organic polyol having at least two hydroxyl groups; ii) a third siloxane having at least two hydroxyl groups; iii) an organic polyamine having at least two amine groups; or iv) a third siloxane having at least two amine groups.

[0039] According to preferred embodiments, each of the first and second reactive components may be chemically (or physically) the same, such as two distinct molecules of the same reactive component (or type). For example, the first and second reactive components may be provided together, such as in a "Part A" (or Side A) of a system for forming the elastomer of the present invention. Alternatively, the first and second reactive components may be provided separately, particularly when they are different from each other. This may be useful for formulation purposes. However, separation is not necessary, as the first and second reactive components are typically inert with respect to each other.

[0040] The third reactive component may be provided separately from the first and second reactive components, for example in a "Part B" (or B-side) of a system for forming the elastomer of the present invention. If the elastomer, or the cosmetic composition, includes one or more optional additives, the additive(s) may be included in either, all, or a combination of parts of the system. The system may include more than two parts. Optionally, various types of conventional additives may be used depending, for example, on the end use of the cosmetic composition. The present invention is not limited to any particular arrangement of the system, nor to any particular additive(s).

[0041] According to preferred embodiments, the siloxanes used to form the elastomers of the present invention consist of siloxane linkages (Si—O—Si) within each of their backbones. Alternatively, each of the siloxanes may include siloxane linkages separated by one or more divalent groups, for example, a -CH2- linking group. Other examples of suitable divalent groups include polyether groups, for example, a —CH2CH2O— linking group (i.e., an EO group), a —CH(CH3)CH2O— linking group (i.e., a PO group), etc. Combinations of different divalent groups may be present within each of their backbones. Each of the divalent groups may be single or repeated, for example, 2 times, 5 times, 10 times, >10 times, etc. In some embodiments, the first and second siloxanes are free of polyether groups.

[0042] According to preferred embodiments, each of the siloxanes comprises at least one [SiR2—O—] unit (D or R2SiO2 / 2 units). Typically, each of the siloxanes has repeating D units, which generally constitute linear portions of the siloxanes. The siloxanes also typically have terminal R3SiO1 / 2 units (M units). In these embodiments, R is an independently selected substituted or unsubstituted hydrocarbyl group.

[0043] According to preferred embodiments, each of the siloxanes described herein may optionally be branched, partially branched, and / or may include a resinous portion having a three-dimensional network structure. In such embodiments, the respective siloxane may further comprise RSiO3 / 2 units (T units) and / or SiO4 / 2 units (Q units). Branching of the siloxane itself, or of the resinous portion of the siloxane, if present, may be attributable to the presence of T and / or Q units. Branching may also be attributable to the side groups of one or more D units. In various embodiments, the siloxanes are free of T units, Q units, or both T and Q units. Where more than one siloxane is described, the siloxanes may be the same or different, e.g., one is linear and one is branched, both are branched, both are linear, etc.

[0044] According to preferred embodiments, the acid-functional elastomer corresponds to the general formula: R^Si~-o-qsiR l R 4 ---o^^ [SiR l R 4 —O—J^SiR^

[0045] or (CH3 )3Si^™[Si(CH3 'jSi(CH3)R 4 —OH~Si(CH3)3

[0046] wherein R1 is an independently selected substituted or unsubstituted hydrocarbyl group. By "substituted" in this context is meant that one or more hydrogen atoms of the hydrocarbon may be replaced by atoms other than hydrogen (e.g., a halogen atom), or a carbon atom in the chain of R1 may be replaced by an atom other than carbon, i.e., R1 may include one or more heteroatoms within the chain, such as oxygen, sulfur, nitrogen, etc. Examples of suitable hydrocarbyl groups represented by R1 include alkyl, aryl, alkenyl, alkaryl, and aralkyl groups. Preferably, R1 is an independently selected alkyl group having 11 to 20, 1 to 15, 1 to 10, 1 to 6, 1 to 4 or 11 to 2 carbon atoms, or any number of carbon atoms in between.Specific examples of suitable alkyl groups as R1 include methyl groups, ethyl groups, propyl groups, butyl groups, pentyl groups, etc. Typically, R1 is a methyl group (i.e., --CH3).

[0047] R2 is preferably a pendant anhydride group of the following general formula (A):

[0048] where R3 is a divalent group. Preferably, R3 is a hydrocarbylene, heterohydrocarbylene or organoheterolene group, R3 preferably being (CH2)n, where n is an integer selected from 1 to 30, 1 to 25, 1 to 20, 1 to 15, 1 to 10, 1 to 5 or 1 to 3, or any intermediate number. Most preferably, n is 3.

[0049] Each of R4 and R5 may be an independently selected substituted or unsubstituted hydrocarbyl group. Examples of suitable groups for each of R4 and R5 are those described for R1. In some embodiments, each R4 is an independently selected alkyl group, an aryl group, or a (R6O)m group. If R4 is a (R6O)m group, R6 is typically an alkyl group or an aryl group, and m is an integer selected from 1 to 50, 1 to 25, 1 to 10, 1 to 5, or 1, or any number in between. The (R6O)m group may also be referred to as a polyether group. In some embodiments, R4 is an independently selected alkyl group having from 2 to 20, 2 to 15, 2 to 10, 2 to 5, or 2, carbon atoms, or any number of carbon atoms in between. In some embodiments, R4 may be a silicone side chain of the siloxane. The groups represented by the subscripts w, x, and y may be present in any order in the respective siloxane, including a different order than that shown above. In addition, these groups may be present in random or block form. Preferably, R4 is either an alkyl group or a polyether group.

[0050] Preferably, w is an integer selected from zero (0) to 1000, 0 to 950, 0 to 750, 0 to 500, 0 to 400, 1 to 350, 1 to 300, 25 to 250, 50 to 200, 50 to 150, 75 to 125, 90 to 110, 90 to 100, or 90 to 95, or any number in between. In a specific embodiment, w is 93. Typically, x is an integer selected from 1 to 100, 1 to 75, 1 to 50, 1 to 25, 1 to 20, 1 to 10, or 1 to 5, or any number in between. In a specific embodiment, x is 3. Typically, y is an integer selected from 0 to 1000, 0 to 950, 0 to 750, 0 to 500, 0 to 400, 1 to 350, 1 to 300, 1 to 250, 1 to 200, 1 to 150, 1 to 100, 1 to 75, 1 to 50, 1 to 25, 1 to 20, 1 to 15, 1 to 10, or 1 to 5, or any number in between.

[0051] According to preferred embodiments, w and y are not simultaneously equal to 0. In other words, in these embodiments, each of the first and second siloxanes includes at least one D unit associated with each of the x units and at least one of the w and y units. In some embodiments, the sum w+x+y is 25 to 1500, 25 to 1000, 25 to 900, 25 to 800, 25 to 700, 25 to 600, 25 to 500, 25 to 400, 25 to 300, 50 to 200, 75 to 150, 85 to 125, or 90 to 110, or any intermediate number. In these embodiments, x is at least 1, at least 10, at least 25, at least 50, at least 75, or at least 85. In this way, each of the first and second siloxanes has at least one of the pendant anhydride groups, and may have other side groups based on the presence of one or more D units associated with w and y.

[0052] The acid-functional silicone elastomer is preferably present in the compositions of the present invention in an amount of active solids ranging from about 0.5% to about 15%, preferably from about 0.75% to about 10%, and most preferably from about 1% to about 6%, by weight based on the total weight of the composition, including all intermediate ranges and sub-ranges. It is to be understood that acceptable ranges of acid-functional silicone elastomer present in the compositions of the invention include 2% to 15%, 2% to 10%, 2% to 6%, 2% to 5%, 5% to 15%, 5% to 10% and 5% to 6% by weight based on the weight of the composition.

[0053] BLOCK COPOLYMER

[0054] According to preferred embodiments of the present invention, compositions comprising at least one block copolymer are provided. The block copolymers of the present invention are characterized by the presence of at least one "hard" segment, and at least one "soft" segment. In addition to their compositional nature, the hard and soft segments of the block copolymers of the present invention are defined in terms of their respective glass transition temperatures "Tg". More particularly, the hard segment has a Tg of about 50°C or higher, while the soft segment has a Tg of about 20°C or lower. The glass transition temperature Tg for the hard block may be from about 50°C to about 150°C; from about 60°C to about 125°C; from about 70°C to about 120°C; or from about 80°C to about 110°C. The glass transition temperature Tg for the soft segment of the block copolymer may be from about 20°C to about -150°C; from about 0°C to about -135°C; from about -10°C to about -125°C; and from about -25°C to about -100°C. A more thorough explanation can be found in US Patents 5,294,438 and 6,403,070.

[0055] The block copolymer of the present invention is a thermoplastic elastomer. The hard segments of the thermoplastic elastomer typically comprise vinyl monomers in varying amounts. Examples of suitable vinyl monomers include, but are not limited to, styrene, methacrylate, acrylate, a vinyl ester, a vinyl ether, vinyl acetate, and others.

[0056] The block copolymer of the present invention comprises at least one hard segment which is styrene.

[0057] The soft segments of thermoplastic telastomer typically comprise olefin polymers and / or copolymers which may be saturated, unsaturated, or combinations thereof. Suitable olefin copolymers may include, but are not limited to, ethylene / propylene copolymers, ethylene / butylene copolymers, propylene / butylene copolymers, polybutylene, polyisoprene, polymers of hydrogenated butanes and isoprenes, and mixtures thereof.

[0058] Thermoplastic elastomers useful in the present invention include block copolymers, for example, di-block, tri-block, multi-block, radial and star block copolymers, and blends thereof. A di-block thermoplastic elastomer is generally defined as an AB type or a hard segment (A) followed by a soft segment (B) in sequence. A tri-block is generally defined as an ABA type copolymer or a ratio of a hard segment, a soft segment and a hard segment. Multi-block or radial block or star block thermoplastic elastomers usually contain any combination of hard and soft segments, provided that the elastomers possess both hard and soft characteristics.

[0059] In preferred embodiments, the thermoplastic elastomer of the present invention may be selected from the Kraton™ class of rubbers (Shell Chemical Company) or similar thermoplastic elastomers. The rubbers Kraton™ are thermoplastic elastomers in which the polymer chains comprise a di-block, tri-block, multi-block, or radial or star block configuration or many mixtures thereof. Kraton™ tri-block rubbers have polystyrene (hard) segments at each end of a rubber (soft) segment, while Kraton™ di-block rubbers have a polystyrene (hard) segment attached to a rubber (soft) segment. The radial or star configuration of Kraton™ rubbers may be a four-point star or other multi-point star consisting of rubber with a polystyrene segment attached to each end of a rubber segment. The configuration of each of the Kraton™ rubbers forms separate domains of polystyrene and rubber.

[0060] Each Kraton™ rubber molecule is said to comprise segments of styrene monomer unit sequences and rubber monomer and / or comonomer units. The most common structure for the Kraton™ tri-block copolymer is the linear ABA block type styrene-butadiene-styrene, styrene-isoprene-styrene, styrene-ethylenepropylene-styrene, or styrene-ethylenebutylene-styrene. The Kraton™ di-block is preferably of the AB block type such as styrene-ethylenepropylene, styrene-ethylenebutylene, styrene-butadiene, or styrene-isoprene. The Kraton™ rubber configuration is well known in the art and any block copolymer elastomer of similar configuration is within the practice of the invention. Other block copolymers are sold under the brand name Septon (which represents elastomers known as SEEPS, sold by Kurary, Co., Ltd) and those sold by Exxon Dow under the brand name Vector™.

[0061] Other thermoplastic elastomers useful in the present invention include block copolymer elastomers comprising a styrene-butylene / ethylene-styrene copolymer (triblock), an ethylene / propylene-styrene copolymer (radial or star block), or a mixture of the two. (Some manufacturers refer to the block copolymers as hydrogenated block copolymers, e.g., hydrogenated styrene-butylene / ethylene-styrene copolymer (triblock)).

[0062] The amounts of the block (co)polymer(s), as well as their structure (di-block, tri-block, etc.), affect the nature of the thermoplastic elastomer, including its gel form, which can range from brittle to soft / flexible to firm. For example, soft gels contain relatively high amounts of soft segments, and firm gels contain relatively high amounts of hard segments. The overall properties of the composition can also be affected by including more than one such block copolymer, for example, by including a blend of copolymers. For example, the presence of tri-block copolymers enhances the integrity of the film formed. The gel can also be transparent, translucent, or opaque, depending on the other cosmetically acceptable ingredients added, as described in this document.

[0063] Although the block copolymers of the present invention comprise styrene, it is preferred that the styrene content of the block copolymer be less than 40 wt%, preferably less than 30 wt%, and more preferably less than 20 wt%, based on the weight of the block copolymer, and preferably greater than 5 wt%, preferably greater than 7 wt%, and most preferably greater than 10 wt%, including all intermediate ranges and sub-ranges such as, for example, 10%-30%, 6%-22%, 5%-40%, etc. This is due to the tendency of block copolymers having a styrene content greater than 40 wt% to harden / gel in conventional carrier systems.However, in the case where a block copolymer having a styrene content greater than 40% by weight is used, it may be necessary to also employ a co-solvent or functional ingredient capable of dissolving a styrene block in an amount effective to control the curing / gelling of the styrene-containing compound in the cosmetic composition.

[0064] A particularly preferred block copolymer for use in the present invention is a combination of di-block and tri-block styrene-ethylene / butylene-styrene (SEBS) copolymers, commercially available from Shell Chemical Company under the trade name Kraton G1657M. It should be noted, however, that any thermoplastic elastomer of the block copolymer type having at least one soft segment and at least one hard segment may be used without departing from the spirit of the invention.

[0065] The block copolymer will preferably have a solubility parameter, relative to the tacky component, of δ + 2, more preferably δ + 1.7, more preferably δ + 1.5, more preferably δ + 1.3, more preferably δ + 1.0, more preferably δ + 0.7, more preferably δ + 0.5, and more preferably δ + 0.3.

[0066] The block copolymer is preferably present in the compositions of the present invention in an amount of active solids ranging from about 0.5% to about 30%, preferably from about 0.75% to about 20%, and preferably from about 1% to about 10%, by weight relative to the total weight of the composition, including all intermediate ranges and sub-ranges. In preferred embodiments, the compositions of the present invention contain at least about 2% by weight of the total weight of the composition, preferably at least about 5% by weight of the total weight of the composition, of the block copolymer. It is understood that acceptable ranges of block copolymer present in the compositions of the invention include 2%-30%, 2%-20%, 2%-10%, 2%-5%, 5%-30%, 5%-20% and 5%-10% by weight relative to the weight of the composition.

[0067] According to preferred embodiments, a sufficient amount of block copolymer is added to the composition of the present invention to increase the strain sweep of the composition by an amount at least 5 times as compared to the strain sweep of the same composition without the block copolymer (comparator), preferably at least 10 times the strain sweep of the comparator, preferably at least 20 times the strain sweep of the comparator, including ranges such as 5-50 times, 10-50 times, 20-50 times, 5-40 times, 10-40 times, 20-40 times, 5-33 times, 10-33 times, and 20-33 times, including all intermediate ranges and sub-ranges, wherein the strain sweep is determined according to the methodology of Example 3 or an equivalent methodology known in the art.

[0068] Without wishing to make any theory of it, it is believed that increasing the deformation sweep of the compositions of the invention by combining the block copolymer(s) and the acid-functional silicone elastomer(s) contributes to increasing the adhesion to keratinous materials (e.g., increasing the adhesion of a lip composition to the lips or increasing the adhesion of a foundation to the skin) and / or contributes to increasing the phase stability of the composition (by creating a homogeneous dispersion of the different phases of the composition (e.g., the oil and water phases of an emulsion) as determined visually and / or microscopically. In this regard, it is noted that within the meaning of the expression "consisting essentially of", the fundamental and novel property is the deformation sweep.

[0069] According to preferred embodiments, the block copolymer and the acid-functional silicone elastomer are present in the compositions of the present invention in an active solids weight ratio of about 3:1 to about 1:1, preferably a weight ratio of about 2.5:1 to about 1:1, and most preferably about 2:1 to about 1:1, including all intermediate ranges and sub-ranges. Preferably, more block copolymers than acid-functional silicone elastomers are present in the compositions of the present invention.

[0070] According to one embodiment, the block copolymer and the acid-functional silicone elastomer are each present in the compositions of the present invention at an active solids content of at least 2% by weight relative to the total weight of the composition.

[0071] According to preferred embodiments, the block copolymer and the acid-functional silicone elastomer are present in the compositions of the present invention such that they are "miscible" with each other. In this context, "miscible" means that the block copolymer and the silicone elastomer mix well. For example, in compositions containing pigments, "miscibility" can be determined visually: compositions in which pigments disperse such that streaks are not visually perceptible and / or compositions in which pigments cannot be visually detected on the surface of the composition are compositions having "miscibility" of the block copolymer and the acid-functional silicone elastomer. If streaks are present and pigments appear on the surface of the composition, the block copolymer and the acid-functional silicone elastomer do not mix well and are not "miscible".

[0072] STICKY AGENTS

[0073] According to preferred embodiments of the present invention, the compositions of the present invention may optionally further comprise at least one tackifier. A substance is described as a tackifier if, upon addition to a block copolymer, the resulting composition has the properties of a pressure-sensitive adhesive. In general, tackifiers can be divided into four different families in terms of chemistry: hydrocarbon resins, terpenes, amorphous (i.e., non-crystalline) rosins, rosin esters and their derivatives, and pure monomeric resins. These tackifiers are characterized by their compatibility with at least one segment of the block copolymer.By the term "compatible" is meant, for example, that when the block copolymer and the tackifier are blended, the combination of at least one segment of the block copolymer with the tackifier forms a polymer blend having a unique glass transition temperature Tg that can be measured by DMA, DSC or neutron light scattering.

[0074] The compatibility of the block copolymer and the tackifier can also be defined in terms of solubility parameters. The solubility parameter according to the Hansen solubility space is defined in the article "Solubility Parameter Values" by Eric A. Grulke in the book "Polymer Handbook" 3rd edition, Chapter VII, pages 519-559, by the relationship:

[0075] ô^= (dD2 + dP2 + dH2)1 / 2, in which:

[0076] - dD characterizes the London dispersion forces resulting from the formation of dipoles induced during molecular impacts,

[0077] - dp characterizes the Debye interaction forces between permanent dipoles,

[0078] - dH characterizes the specific interaction forces (hydrogen bond, acid type / base or donor / acceptor and others). The definition of solvents in the three-dimensional solubility space according to Hansen is given in the article by CM Hansen: "The three-dimensional solubility parameters" J. Paint Technol., 39, 105(1967).

[0079] The at least one tackifier used in the present invention preferably has a solubility parameter corresponding to and the block copolymer preferably has at least one segment whose solubility parameter corresponds to ô + 2, preferably ô + 1.7, more preferably ô + 1.5, more preferably ô + 1.3, more preferably ô + 1.0, more preferably ô + 0.7, more preferably ô + 0.5, and more preferably ô + 0.3.

[0080] Examples of suitable tackifiers include, but are not limited to, aliphatic hydrocarbon resins, aromatic modified aliphatic hydrocarbon resins, hydrogenated polycyclopentadiene resins, polycyclopentadiene resins, rosins, rosin esters, wood rosins, rosin esters, tall oil rosins, tall oil rosin esters, polyterpenes, aromatic modified polyterpenes, terpene phenolics, aromatic modified hydrogenated polycyclopentadiene resins, hydrogenated aliphatic resin, hydrogenated aliphatic aromatic resins, hydrogenated terpenes and modified terpenes, hydrogenated rosin acids, hydrogenated rosin esters, polyisoprene, partially or fully hydrogenated polyisoprene, polybutenediene, partially or fully hydrogenated, and the like. As some of the examples cited show, the tackifier may be fully or partially hydrogenated.The tackifier may also be non-polar, where "non-polar" means that the tackifier is substantially free of monomers having polar groups. Preferably, polar groups are not present; however, if present, they are preferably present in an amount of up to about 5% by weight, preferably up to about 2% by weight, and more preferably up to about 0.5% by weight.

[0081] In preferred embodiments, the tackifier may have a softening point (Ring and Bail, as measured by ASTM E-28) of about 80°C to about 150°C, preferably about 100°C to about 130°C. In other preferred embodiments, the tackifier may be liquid and have an R and B softening point of between about -70°C and about 70°C.

[0082] According to preferred embodiments, the tackifiers are hydrogenated hydrocarbon resins such as a hydrogenated styrene / methylstyrene / indene copolymer, for example, styrene / methylstyrene / indene copolymers that include R1090, RI 100, R7100, S1100 and S5100, all commercially available from Eastman Chemical under the trade name Regalite®. In other embodiments, aliphatic or aromatic hydrocarbon-based tackifier resins, for example, the resins sold under the name "Piccotac" and "Hercotac" from Hercules or "Escorez" from Exxon, may also be used. It is also to be understood that mixtures of tackifiers may also be employed without departing from the spirit of the invention.

[0083] A particularly preferred tackifying agent in the context of the present invention is a hydrogenated hydrocarbon resin such as, for example, a styrene / hydrogenated methylstyrene / indene, commercially available from Eastman under the brand name Regalite RI 100.

[0084] According to particularly preferred embodiments, the compositions of the present invention comprise an equivalent amount of the at least one block copolymer and the at least one tackifier, or more of the at least one block copolymer relative to the at least one tackifier. For example, the at least one block copolymer and the at least one tackifier may be present in ratios of 1.25, 1.00, 0.75, 0.50, 0.33, 0.25 and 0.10, including all intermediate ranges and sub-ranges, with ratios of 1.00 to 0.33 being particularly preferred.

[0085] If present in the compositions of the present invention, the tackifier(s) are preferably present in an amount of about 0.1 to about 10% by weight, preferably 1 to 10% by weight, preferably 1 to 8% by weight and preferably 1 to 5% by weight of the total weight of the composition, including all intermediate ranges and sub-ranges.

[0086] However, according to other preferred embodiments, the compositions of the present invention contain less than 0.1% tackifier(s), preferably less than 0.05% tackifier(s), and preferably no tackifier.

[0087] Coloring agents

[0088] According to preferred embodiments of the present invention, the compositions of the present invention may optionally further comprise at least one coloring agent. According to this embodiment, the coloring agent(s) are preferably chosen from pigments, dyes, pearlescent pigments, pearlescent agents, and mixtures thereof.

[0089] Representative fat-soluble dyes that may be used in accordance with the present invention include Sudan Red, DC Red 17, DC Green 6, β-carotene, soybean oil, Sudan Brown, DC Yellow 11, DC Violet 2, DC Orange 5, annatto, and quinoline yellow. Fat-soluble dyes, when present, generally have a concentration of up to 40% by weight of the total weight of the composition, for example, from 0.0001% to 30%, including all intermediate ranges and sub-ranges.

[0090] The pearlescent pigments usable according to the present invention may be chosen from colored pearlescent pigments such as titanium mica with iron oxides, titanium mica with ferric blue or chromium oxide, titanium mica with an organic pigment chosen from those mentioned above, and pearlescent pigments based on bismuth oxychloride. The pearlescent pigments, if present, are present in the composition at a concentration of up to 50% by weight of the total weight of the composition, such as from 0.0001% to 40%, preferably from 0.001% to 30%, including all intermediate ranges and sub-ranges.

[0091] The pigments, which can be used according to the present invention, can be selected from white, colored, inorganic, organic, polymeric and non-polymeric pigments. Representative examples of inorganic pigments include titanium dioxide, zirconium oxide, zinc oxide, cerium oxide, iron oxides, chromium oxides, manganese violet, ultramarine blue, chromium hydrate and ferric blue. Representative examples of organic pigments include carbon black, D & C type pigments, and lakes based on cochineal carmine, barium, strontium, calcium and aluminum.

[0092] If present, the coloring agents may be present in the composition at a concentration of up to 50% by weight of the total weight of the composition, for example from 0.0001% to 40%, and further from 0.001% to 30%, including all intermediate ranges and sub-ranges.

[0093] Oily phase

[0094] According to preferred embodiments of the present invention, compositions further comprising at least one fatty substance are provided. Suitable fatty substances include one or more oils and / or one or more waxes. By "oil" is meant any non-aqueous medium which is liquid at room temperature (25°C) and atmospheric pressure (760 mm Hg). A "wax", as used in the present disclosure, is a lipophilic fatty compound which is solid at room temperature (25°C) and changes from the solid state to the liquid state reversibly, having a melting temperature of more than 30°C and, for example, more than 45°C, which can reach 150°C, a hardness of more than 0.5 MPa at room temperature, and an anisotropic crystal organization in the solid state.By bringing the wax to its melting temperature, it is possible to use the wax(es) by themselves as carriers and / or it is possible to make the wax(es) miscible with the oils to form a microscopically homogeneous mixture.

[0095] Suitable oils include volatile and / or non-volatile oils. These oils may be any acceptable oil including, but not limited to, silicone oils and / or hydrocarbon oils.

[0096] In some embodiments, the compositions of the present invention preferably comprise one or more volatile silicone oils. Examples of such volatile silicone oils include linear or cyclic silicone oils having a room temperature viscosity of less than or equal to 6 cSt and having from 2 to 7 silicon atoms, these silicones being optionally substituted with alkyl or alkoxy groups of 1 to 10 carbon atoms. Specific oils that may be used in the invention include octamethyltetrasiloxane, decamethylcyclopenta-siloxane, dodecamethylcyclohexasiloxane, heptamethyloctyltrisiloxane, hexamethyldisiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane and their mixtures. Other volatile oils that may be used include KF 96A of 6 cSt viscosity, a commercial product from Shin Etsu having a flash point of 94°C. Preferably, volatile silicone oils have a flash point of at least 40°C.

[0097] According to one embodiment, the composition according to the invention further comprises at least one volatile oil chosen from the group consisting of cyclopentasiloxane, isododecane, and mixtures thereof.

[0098] Non-limiting examples of volatile silicone oils are listed in Table 1 below.

[0099] [Tables 1] Compound Flash point (°C) Viscosity (cSt) Octyltrimethicone 93 1.2 Hexyltrimethicone 79 1.2 Decamethylcyclopentasiloxane 72 4.2 (cyclopentasiloxane or D5) 55 2.5 Octamethylcyclotetrasiloxane 93 7 (cyclotetradimethylsiloxane or D4) 63 1.7 Dodecamethylcyclohexasiloxane (D6) 94 6 Decamethyltetrasiloxane (L4) 56 1.5 KF-96 A from Shin Etsu PDMS (polydimethylsiloxane) DC 200 (1.5cSt) from Dow Corning PDMS DC 200 (2cSt) from Dow Corning 87 2

[0100] Furthermore, a volatile linear silicone oil may be employed in the present invention. Suitable volatile linear silicone oils include those described in U.S. Patent No. 6,338,839 and WO 03 / 042,221. In one embodiment, the volatile linear silicone oil is decamethyltetrasiloxane. In another embodiment, the decamethyltetrasiloxane is further combined with another solvent more volatile than the decamethyltetrasiloxane.

[0101] According to certain embodiments of the present invention, the composition preferably comprises one or more volatile non-silicone oils and may be selected from volatile hydrocarbon oils, volatile esters and volatile ethers. Examples of such volatile non-silicone oils include, but are not limited to, volatile hydrocarbon oils having from 8 to 16 carbon atoms and mixtures thereof and in particular branched C8 to C16 alkanes such as C8 isoalkanes to Ci6 (also known as isoparaffins), isohexacecane, isododecane, isodecane, and for example, oils sold under the trade names Isopar or Permethyl. Preferably, the volatile non-silicone oils have a flash point of at least 40 °C.

[0102] Non-limiting examples of non-silicone volatile oils are given in Table 2 below.

[0103] [Tables2] Compound Flash point (°C) Isododecane 43 Propylene glycol n-butyl ether 60 Ethyl 3-ethoxypropionate 58 Propylene glycol methyl ether acetate 46 Isopar L (isoparaffin Cn Ci3) 62 Isopar H (isoparaffin Cn-Ci2) 56

[0104] The volatility of solvents / oils can be determined using the evaporation rate as presented in US Patent No. 6,338,839.

[0105] According to certain embodiments of the present invention, the composition comprises at least one non-volatile oil. Examples of non-volatile oils that may be used in the present invention include, but are not limited to, polar oils such as:

[0106] - hydrocarbon vegetable oils with a high triglyceride content consisting of of fatty acid esters of glycerol, the fatty acids of which may have varying chain lengths, these chains being optionally linear or branched, and saturated or unsaturated; these oils include wheat germ oil, corn oil, sunflower oil, shea butter, castor oil, sweet almond oil, macadamia oil, apricot oil, soybean oil, rapeseed oil, cottonseed oil, alfalfa oil, poppy seed oil, pumpkin oil, sesame oil, marrow oil, avocado oil, hazelnut oil, grape seed oil, blackcurrant seed oil, evening primrose oil, millet oil, barley oil, quinoa oil, olive oil, rye oil, safflower oil, candlenut oil, passionflower oil or rosehip oil; or caprylic / capric acid triglycerides, for example those sold by the company Stearineries Dubois or those sold under the names Miglyol 810, 812 and 818 by the company Dynamit Nobel;

[0107] - synthetic oils or esters of formula R5COOR6 in which R5 represents a higher fatty acid residue, linear or branched, containing from 1 to 40 carbon atoms, including from 7 to 19 carbon atoms, and R6 represents a branched hydrocarbon chain containing from 1 to 40 carbon atoms, including from 3 to 20 carbon atoms of carbon, with R6 + R7 ❖❖ 10, such as for example Purcellin oil (cetostearyl octanoate), isononyl isononanoate, octyldodecyl neopentanoate, a C12-C15 alkyl benzoate, isopropyl myristate, 2-ethylhexyl palmitate, octanoates, decanoates or ricinoleates of alcohols or polyalcohols; hydroxylated esters, for example isostearyl lactate or diisostearyl malate; and pentaerythritol esters;

[0108] - synthetic ethers containing from 10 to 40 carbon atoms;

[0109] - C8 to C26 fatty alcohols, for example oleyl alcohol, cetyl alcohol, stearyl alcohol and cetearyl alcohol; and

[0110] - their mixtures.

[0111] Further, examples of non-volatile oils that may be used in the present invention include, but are not limited to, non-polar oils such as branched and unbranched hydrocarbons and hydrocarbon waxes including polyolefins, particularly petrolatum (vaseline), paraffin oil, squalane, squalene, hydrogenated polyisobutene, hydrogenated polydecene, polybutene, mineral oil, pentahydrosqualene, and mixtures thereof.

[0112] According to preferred embodiments, if present, the at least one oil is present in the compositions of the present invention in an amount ranging from about 5 to about 80% by weight, more preferably from about 10 to about 70% by weight, and most preferably from about 15 to about 60% by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges.

[0113] According to preferred embodiments of the present invention, the compositions of the present invention further comprise at least one wax.Suitable examples of waxes that may be used in accordance with the present disclosure include those generally used in the field of cosmetics: these include those of natural origin, such as beeswax, carnauba wax, candelilla wax, ouricoury wax, Japan wax, cork or sugarcane fiber wax, rice bran wax, rice wax, montan wax, paraffin wax, lignite wax or microcrystalline wax, ceresin or ozokerite, and hydrogenated oils such as hydrogenated castor oil or jojoba oil; synthetic waxes such as polyethylene waxes obtained by polymerization or copolymerization of ethylene, and Fischer-Tropsch waxes, or fatty acid esters, such as octacosanyl stearate, glycerides which are concrete at 30°C, for example at 45°C.

[0114] According to particularly preferred embodiments of the present invention, the compositions of the present invention further include at least one silicone wax. Examples of suitable silicone waxes include, but are not limited to, silicone waxes. silicones such as alkyl- or alkoxydimethicones having a range of 10 to 45 carbon atoms, poly(di)methylsiloxane esters which are solid at 30°C and whose ester chain comprises at least 10 carbon atoms, di(l,l,l-trimethylolpropane) tetrastearate, which is sold or manufactured by Heterene under the name HEST 2T-4S; alkylated silicone acrylate copolymer waxes comprising at least 40 mol% of siloxy units having the formula (R2R'SiOi / 2)x(R”SiO3 / 2)y, where x and y have a value of 0.05 to 0.95, R is an alkyl group having 11 to 8 carbon atoms, an aryl group, a carbinol group or an amino group, R is a monovalent hydrocarbon having 9-40 carbon atoms, R' ' is a monovalent hydrocarbon group having 1 to 8 carbon atoms, an aryl group such as those disclosed in US patent application 2007 / 0 149 703, a particular example being a C3o-C45 alkyldimethylsilyl polypropylsilsesquioxane; and mixtures thereof.

[0115] According to preferred embodiments, the compositions of the present invention contain less than 1% wax.

[0116] According to preferred embodiments, the compositions of the present invention contain less than 0.5% wax.

[0117] According to preferred embodiments, the compositions of the present invention do not contain wax.

[0118] If present, the wax(es) may be present in an amount ranging from 1 to 30% by weight relative to the total weight of the composition, for example from 2 to 20%, and for example from 3 to 10%, including all intermediate ranges and sub-ranges.

[0119] Aqueous phase

[0120] The compositions of the present invention may also contain water. When the compositions of the present invention contain water, they are preferably in the form of an emulsion. Preferably, when the compositions of the present invention contain water, they are in the form of an oil-in-water (O / W) emulsion or a water-in-oil (W / O) emulsion. Preferably, when in the form of an emulsion, the oil phase contains predominantly silicone oils (Si / W or W / Si emulsion) or hydrocarbon oils. When present, water is preferably present in an amount of from about 10% to about 80% by weight, preferably from about 20% to about 70% by weight, preferably from about 35% to about 65% by weight, including all intermediate ranges and sub-ranges, all weights being based on the total weight of the composition.

[0121] Additional additives

[0122] The composition of the invention may also comprise any additive usually used in the field under consideration. For example, dispersants such as poly(12-hydroxystearic acid), antioxidants, oils and essential oils, sunscreens, preservatives, fragrances, fillers, neutralizing agents, cosmetic and dermatological actives such as, for example, emollients, moisturizers, vitamins, essential fatty acids, surfactants, silicone elastomers, thickeners, gelling agents, particles, paste-like compounds, viscosity-increasing agents. A non-exhaustive list of such ingredients can be found in US Patent Application Publication No. 2004 / 0 170 586. Other examples of suitable additional components can be found in the other references. Still other examples of such additional ingredients can be found in the International Cosmetic Ingredient Dictionary and Handbook (9th Edition, 2002).

[0123] A person skilled in the art will take care to select the optional additional additives and / or their quantity in such a way that the advantageous properties of the composition according to the invention are not, or not substantially, negatively affected by the envisaged addition.

[0124] These substances can be chosen in various ways by those skilled in the art in order to prepare a composition which has the desired properties, for example consistency or texture.

[0125] These additives may be present in the composition in a proportion ranging from 0% to 99% (for example from 0.01% to 90%) relative to the total weight of the composition, and in addition from 0.1% to 50% (if present), including all intermediate ranges and sub-ranges.

[0126] It goes without saying that the composition of the invention must be cosmetically or dermatologically acceptable, that is to say that it must contain a physiologically acceptable non-toxic medium and must be able to be applied to the keratinous materials of human beings such as, for example, the lips, the skin or the eyelashes.

[0127] In particular, suitable gelling agents for the oil phase include, but are not limited to, lipophilic or hydrophilic clays.

[0128] The term "hydrophilic clay" refers to a clay capable of swelling in water; this clay swells in water and forms a colloidal dispersion after hydration. These clays are products already well known in themselves, which are described, for example, in the work "Minéralogie des argiles", S. Caillere, S. Henin, M. Rautureau, 2nd edition 1982, Masson. Clays are silicates containing a cation which can be chosen from calcium, magnesium, aluminum, sodium, potassium and lithium cations, and mixtures thereof. By way of example, clays of the smectite family such as montmorillonites, hectorites, bentonites, beidellites and saponites, but also of the vermiculite, stevensite and chlorite families can be included. These clays can be of natural or synthetic origin.

[0129] Hydrophilic clays that may be cited include smectite products such as saponites, hectorites, montmorillonites, bentonites and beidellites. Hydrophilic clays that may be included include synthetic hectorites (also called laponites), for example the products sold by the company Laporte under the names Laponite XLG, Laponite RD and Laponite RDS (these products are sodium magnesium silicates and in particular sodium lithium magnesium silicates); bentonites, for example the product marketed under the name Bentone HC by the company Rheox; magnesium aluminium silicates, in particular hydrated magnesium silicates, for example the products marketed by the company Vanderbilt under the names Veegum Ultra, Veegum HS and Veegum DGT, or calcium silicates, and in particular the product in synthetic form marketed by the company under the name Micro-cel C.

[0130] The term "lipophilic clay" means a clay capable of swelling in a lipophilic medium; this clay swells in the medium and thus forms a colloidal dispersion. Examples of lipophilic clay include modified clays such as modified magnesium silicate (Bentone Gel VS38 from Rheox), and hectorites modified with a C10 to C22 fatty acid ammonium chloride, for example hectorite modified with distearyldimethylammonium chloride (CTFA name: dis-teardimonium hectorite) sold under the name Bentone 38 CE by the company Rheox or Bentone 38V® by the company Elementis.

[0131] In particular, among the gelling agents which can be used, mention may be made of silica particles. Preferably, the silica particles are particles of sublimed silica.

[0132] Suitable silicas include, but are not limited to, hydrophobic silicas, such as pyrogenic silica with optionally hydrophobic surface treatment whose particle size is less than 1 micron, preferably less than 500 nm, preferably less than 100 nm, preferably from 5 nm to 30 nm, including all intermediate ranges and sub-ranges. It is indeed possible to chemically modify the surface of the silica, by a chemical reaction producing a reduction in the number of silanol groups present on the surface of the silica. The silanol groups can in particular be replaced by hydrophobic groups: a hydrophobic silica is then obtained. The hydrophobic groups can be:

[0133] trimethylsiloxyl groups, which are in particular obtained by treatment of pyrogenic silica in the presence of hexamethyldisilazane. The silicas thus treated are called “Silica silylate” according to the CTFA (6th edition, 1995). They are for example marketed under the references “AEROSIL R812®” by the company Degussa, “CAB-O-SIL TS-530®” by the company Cabot;

[0134] dimethylsilyloxyl or polydimethylsiloxane groups, which are in particular obtained by treatment of pyrogenic silica in the presence of polydimethylsiloxane or dimethyldichlorosilane. Silicas treated in this way are called “Silica dimethyl silylate" according to the CTFA (6th edition, 1995). They are for example marketed under the references "AEROSIL R972®", "AEROSIL R974®" by the company Degussa, "CAB-O-SIL TS-610®", "CAB-O-SIL TS-720®" by the company Cabot.

[0135] Preferably, the gelling agent, if present, is present in the composition of the present invention in amounts of active material generally ranging from about 0.1% to about 10%, preferably from about 0.25% to about 5%, and more preferably from about 0.5% to about 3.5%, by weight, based on the total weight of the composition, including all intermediate ranges and sub-ranges.

[0136] According to particularly preferred embodiments of the present invention, the compositions of the present invention further comprise at least one surfactant present in an amount ranging from about 3% to about 10% by weight, at least one pigment in an amount ranging from about 10% to about 20% by weight, and at least one filler present in an amount ranging from about 0.5% to about 2% by weight, all weights being relative to the total weight of the composition, including all intermediate ranges and sub-ranges.

[0137] According to preferred embodiments of the present invention, methods of treating, caring for and / or making up a keratinous material by applying compositions of the present invention to the keratinous material in an amount sufficient to treat, care for and / or make up the keratinous material are provided. Preferably, "making up" the keratinous material includes applying at least one coloring agent to the keratinous material in an amount sufficient to impart color to the keratinous material.

[0138] According to still other preferred embodiments, methods for enhancing the appearance of a keratinous material by applying compositions of the present invention to the keratinous material in an amount sufficient to enhance the appearance of the keratinous material are provided.

[0139] In accordance with the preceding preferred embodiments, the compositions of the present invention are applied topically to the desired area of ​​keratinous material in an amount sufficient to treat, condition, and / or make up the keratinous material, to cover or conceal defects associated with the keratinous material, or to enhance the appearance of the keratinous material. The compositions may be applied to the desired area as needed, preferably once daily, and then preferably allowed to dry before subjecting them to contact, for example, with clothing or other objects. More preferably, the composition is allowed to dry for about 4 minutes or less, more preferably for about 2 minutes or less.

[0140] According to preferred embodiments of the present invention, methods of increasing the deformation sweep of a composition comprising the com combination of at least one acid-functional silicone elastomer and at least one block copolymer in the composition in amounts and / or ratios indicated in the above description so as to increase the deformation sweep of the composition are provided. Preferably, the increase in deformation sweep is manifested by an improvement in the stability of the composition, an improvement in the adhesion of the composition, or both, as discussed above.

[0141] Notwithstanding that the numerical ranges and parameters within the general scope of the invention are approximations, the numerical values ​​presented in the specific examples are reported as accurately as possible. However, any numerical value inherently contains certain errors necessarily resulting from the standard deviation observed in their respective measurements. The following examples are intended to illustrate the invention without limiting its scope. Percentages are given on a weight basis. Example 1 – Inventive composition

[0142] Example of basic composition

[0143] [Tables3] Surfactants 3%-5% Oil / Solvent 5%-30% Acid-functional silicone elastomer 6% (active solids) Block copolymer such as styrene-containing polymer (e.g., Kraton materials) 8% (active solids) Filler 0.1%-3% Pigments 10%-20% Water phase (film-forming agents, preservatives, water-soluble solvents) 20%-50% Total 100.0

[0144] Example 2 - Inventive and comparative compositions - Transfer resistance

[0145] Inventive compositions containing varying amounts of copolymer styrene-ethylene / butylene-styrene (SEBS) block and acid-functional silicone elastomer were prepared using the base composition of Example 1.

[0146] The compositions were tested as follows in a multiple challenge wear test. A film was deposited onto a surface such as a bykochart Black Scrub Panels P121-10N #5015 black abrasion card using a 1 mL draw bar. After drying overnight at 37°C, the deposit was covered with artificial sebum or sweat. The film was wiped off by hand with an absorbent material such as cotton. The amount of the sample that remained undisturbed on the abrasion card and the amount of the sample that transferred to the absorbent material were determined.1 corresponds to total disruption and extreme transfer to the absorbent material, 2 corresponds to very significant disruption with substantial transfer to the absorbent material, 3 corresponds to semi-disruption and some transfer to the absorbent material, 4 corresponds to minimal disruption and minimal transfer to the absorbent material, and 5 corresponds to essentially no visual disruption (elimination) and no visual transfer.

[0147] The table below shows the amount of SEBS block copolymer and functional silicone elastomer used in the different compositions, as well as the test results.

[0148] [Tables4] Formula Smear test: sweat abrasion Sweat transfer to cotton Smear test: Sebum on abrasive paper Sebum transfer to cotton Example 2A (2% acid-functional silicone elastomer + 2% SEBS) 5 5 3 2 Example 2B (5% acid-functional silicone elastomer + 2.5% SEBS) 5 5 3 2 Example 2C (5% acid-functional silicone elastomer + 5% SEBS) 5 5 3 3 Example 2D (5% acid-functional silicone elastomer) 5 4 1 1 Commercial product (containing silicone resin) 3 3 3 3

[0149] Tests showed that sebum resistance was improved using the combination of block copolymer and acid-functional silicone elastomer of the present invention. The acid-functional silicone elastomer, by itself, showed good sweat resistance properties. However, it showed poor sebum resistance properties. The commercially available product showed poorer sweat resistance properties. In contrast, the combination of ingredients of the invention surprisingly showed both good sweat resistance properties and improved sebum resistance properties, with at least 5% of the block copolymer and acid-functional silicone elastomer present, demonstrating the best results for the properties tested, which, in turn, demonstrate the best results related to the improvement of adhesion to the materials on which the compositions were applied.

[0150] Example 3 - Inventive and comparative compositions - Deformation scanning

[0151] The strain sweep was determined by a rheometer (Discovery Hybrid Rheometer -3) for each formula. The experiment was conducted at 32°C. The angular frequency was set at 1 rad / s, while the % strain was between 0.01% and 1000%.

[0152] [Tables5] Example 2A Example 2B Example 2C Example 2D Yield Stress (Pa)-Strain Sweep 0.58 7.7 7.14 0.17 Yield Strain (%) 0.43 1.64 1.64 1.61 Consistency G* at 1% strain (Pa) 44 508 343 11 G" (Pa) at 300% strain 6 14 9.96 1.06 G', G" (Pa) at 1% strain 32.30 496.108 338.58 10.3 Sol-gel Point (%) 1.85 5.21 5.6 20 delta at 1% strain 42 12 9.8 15 Dynamic Viscosity h 'at 1% strain 30 108 58 3 Deformation hardening NOOO

[0153] Formula B had the highest consistency and modulus. We have observed strain hardening on formulations B, C and D. This suggested that strain hardening may correlate with a higher concentration of acid-functional silicone elastomer, which in turn correlates with better adhesion to the materials to which the compositions were applied.

[0154] Example 4 - Inventive and comparative compositions - Coefficient of friction

[0155] The coefficient of friction as a function of shear rate was measured by DHR-3 (Discovery Hybrid Rheometer). The experiment was conducted at 32°C. The axial force was set at 3 N ± 0.1 N. The mode was compression. The coefficient of friction was measured for 240 seconds at a shear rate of 0.01 to 30 ( / s) in a linear mode. The measurement of the coefficient of friction at a certain speed by tribology is believed to be associated with sensory attributes.

[0156] It was observed that among formulas A, B, and C, there was no significant difference in friction. Formulas A, B, and C generally exhibited higher friction compared to the commercially available product.

[0157] [Tableauxô] Shear Rate Friction at 0.07 / s 1.1 / s 10 / s Example 2A 0.11 0.24 0.31 Example 2B 0.12 0.24 0.33 Example 2C 0.12 0.24 0.33 Commercial Product 1 (containing MQ resin) 0.13 0.28 0.29 Commercial Product 2 (containing t-propyl resin + t-propyl resin wax) 0.11 0.23 0.31

Claims

Claims

1. A composition comprising at least one acid-functional silicone elastomer and at least one block copolymer which is a thermoplastic elastomer comprising styrene, wherein the block copolymer is styrene-ethylene / butylene-styrene.

2. The composition of claim 1, wherein the composition is anhydrous.

3. A composition according to claim 1, wherein the composition is in the form of an emulsion.

4. A composition according to any preceding claim, wherein the composition further comprises at least one coloring agent.

5. A composition according to any preceding claim, further comprising at least one volatile oil selected from the group consisting of cyclopentasiloxane, isododecane, and mixtures thereof.

6. A composition according to any preceding claim, wherein the acid-functional silicone elastomer has the general formula: ABA or BAB, wherein each A independently comprises a polysiloxane moiety having at least two siloxy groups, wherein each B independently comprises a moiety, or a precursor thereof, having at least two carboxyl groups, and wherein B is bonded to a silicon atom in A.

7. A composition according to any preceding claim, wherein the block copolymer and the acid-functional silicone elastomer are present in the compositions of the present invention in an active solids weight ratio of 3:1 to 1:

1.

8. A composition according to any preceding claim, wherein the block copolymer and the acid-functional silicone elastomer are each present in the compositions of the present invention at an active solids content of at least 2% by weight relative to the total weight of the composition.

9. A method of making up a keratinous substrate comprising applying the composition of claim 1 to a keratinous substrate in an amount sufficient to make up the keratinous substrate.