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US20060251601A1 - Cosmetic composition comprising a polymer - Google Patents

Cosmetic composition comprising a polymer Download PDF

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Publication number
US20060251601A1
US20060251601A1 US10538016 US53801603A US2006251601A1 US 20060251601 A1 US20060251601 A1 US 20060251601A1 US 10538016 US10538016 US 10538016 US 53801603 A US53801603 A US 53801603A US 2006251601 A1 US2006251601 A1 US 2006251601A1
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Prior art keywords
composition
polymer
weight
acrylic
acrylate
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Abandoned
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US10538016
Inventor
Pascal Arnaud
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L'Oreal SA
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L'Oreal SA
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K8/00Cosmetics or similar toilet preparations
    • A61K8/18Cosmetics or similar toilet preparations characterised by the composition
    • A61K8/30Cosmetics or similar toilet preparations characterised by the composition containing organic compounds
    • A61K8/58Cosmetics or similar toilet preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
    • A61K8/585Organosilicon compounds
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K8/00Cosmetics or similar toilet preparations
    • A61K8/02Cosmetics or similar toilet preparations characterised by special physical form
    • A61K8/04Dispersions; Emulsions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K8/00Cosmetics or similar toilet preparations
    • A61K8/18Cosmetics or similar toilet preparations characterised by the composition
    • A61K8/72Cosmetics or similar toilet preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84Cosmetics or similar toilet preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/89Polysiloxanes
    • A61K8/891Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
    • A61K8/893Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by an alkoxy or aryloxy group, e.g. behenoxy dimethicone or stearoxy dimethicone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
    • A61K8/00Cosmetics or similar toilet preparations
    • A61K8/18Cosmetics or similar toilet preparations characterised by the composition
    • A61K8/72Cosmetics or similar toilet preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/91Graft copolymers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q1/00Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02Preparations containing skin colorants, e.g. pigments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q1/00Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02Preparations containing skin colorants, e.g. pigments
    • A61Q1/04Preparations containing skin colorants, e.g. pigments for lips
    • A61Q1/06Lipsticks
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q1/00Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02Preparations containing skin colorants, e.g. pigments
    • A61Q1/08Preparations containing skin colorants, e.g. pigments for cheeks, e.g. rouge
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q1/00Make-up preparations; Body powders; Preparations for removing make-up
    • A61Q1/02Preparations containing skin colorants, e.g. pigments
    • A61Q1/10Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q17/00Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
    • A61Q19/00Preparations for care of the skin
    • A61Q19/04Preparations for care of the skin for chemically tanning the skin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/04Polymers provided for in subclasses C08C or C08F
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06Polymers provided for in subclass C08G
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06Polymers provided for in subclass C08G
    • C08F290/068Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/003Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/08Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Abstract

The present disclosure relates to a cosmetic makeup or skincare composition that includes a dispersion of at least one grafted ethylenic polymer in a liquid fatty phase, wherein when the composition forms a deposit, the deposit exhibits good transfer resistance and has a transfer index of less then 4 while in the presence of sebum. Further, the disclosure is directed towards a method for applying the composition as a makeup.

Description

  • [0001]
    The present invention relates to a cosmetic composition comprising a particular polymer and intended for application to the skin of human beings.
  • [0002]
    The composition according to the invention may be a makeup composition or a care composition for the skin, and preferably a makeup composition.
  • [0003]
    The makeup composition may be a foundation, an eyeshadow, a blusher, a concealer, an eyeliner or a body makeup product. More especially, the invention relates to a foundation composition.
  • [0004]
    The care composition may be a face and body skincare product, in particular a sun product, or a skin colouring product (such as a self-tanning product).
  • [0005]
    Foundation compositions are commonly used to give the skin, in particular the face, an aesthetic colour. These makeup products generally contain oils, pigments and/or fillers and optionally additives, such as cosmetic or dermatological actives.
  • [0006]
    These compositions, when they are applied to the skin, exhibit the disadvantage of transferring, i.e. of undergoing at least partial deposition, leaving marks, on certain substrates with which they may be contacted, and in particular a glass, cup, cigarette, item of clothing, or the skin. A consequence of this is mediocre persistence of the applied film, making it necessary regularly to renew the application of the lipstick or foundation composition. Moreover, the appearance of these unacceptable marks, particularly on blouse collars, may put certain women off using this type of makeup.
  • [0007]
    Furthermore, the sebum excreted by the skin over the course of time also alters the properties of the makeup. In particular, sebum does not promote the adhesion of the makeup to the skin, and the transfer of the makeup is even greater, giving rise to a substantial loss of the makeup remaining on the skin.
  • [0008]
    “Transfer-free” skin makeup compositions are therefore sought which exhibit the advantage of forming a transfer-resistant deposit, especially in the presence of sebum, and especially compositions which do not undergo at least partial deposition onto substrates with which they are contacted (glass, clothing, cigarettes, fabrics).
  • [0009]
    For the purpose of enhancing the persistence of makeup products the use of film-forming polymers is known. For example, documents U.S. Pat. No. 6,074,654 and WO 02/067877 propose the use of silicone resins.
  • [0010]
    It is therefore an object of the present invention to provide a new formulation pathway for a cosmetic product which enables good transfer resistance properties to be obtained, especially in the presence of sebum.
  • [0011]
    The inventors have discovered that it is possible to obtain such a composition by using a particular polymer.
  • [0012]
    More specifically, therefore, the present invention provides a makeup or skincare cosmetic composition comprising a dispersion of particles, preferably solid particles, of a grafted ethylenic polymer in a liquid fatty phase as described below, the composition being in particular as defined below.
  • [0013]
    Advantageously the grafted ethylenic polymer is such that, when it is present in sufficient quantity in the composition, that composition is capable of forming a deposit having a transfer index in the presence of sebum of less than 4.
  • [0014]
    The invention also provides a method of making up the skin which comprises applying to the keratin materials, in particular to the skin, a composition as defined above.
  • [0015]
    The invention further provides for the use of a composition as defined above for obtaining a deposit, in particular a makeup deposit, on the skin that has good transfer resistance, especially in the presence of sebum.
  • [0016]
    The invention additionally provides for the use, in a cosmetic composition, of a dispersion of particles (preferably solid particles) of a grafted ethylenic polymer in dispersion in a liquid fatty phase, the composition being capable in particular of forming a deposit having a transfer index in the presence of sebum of less than 4, for obtaining a deposit, in particular a makeup deposit, on the skin that exhibits good transfer resistance, especially in the presence of sebum.
  • [0017]
    Advantageously the grafted ethylenic polymer used in the composition according to the invention is such that, when it is present in sufficient quantity in the composition, that composition is capable of forming a deposit having a transfer index in the presence of sebum of less than 4, in particular less than or equal to 3.5, preferably less than or equal to 3, in particular less than or equal to 2.5, preferentially less than or equal to 2, more preferentially less than or equal to 1.5, and in particular less than or equal to 1.
  • [0018]
    The transfer index in the presence of sebum of the deposit obtained with the composition according to the invention is determined in accordance with the measuring protocol described below.
  • [0019]
    A substrate (square of 40 mm×40 mm) composed of a layer of neoprene foam which is adhesive on one of its faces (sold under the name RE70X40 212B from Joint Technique Lyonnais Ind) is prepared. An adhesive crown having an internal diameter of 24 mm and a thickness of approximately 250 μm is affixed to the non-adhesive face of the substrate. The composition is applied inside the crown and is levelled off with a glass slide so as to give a deposit of the composition approximately 250 μm thick, and then the crown is withdrawn and the deposit is left to dry in an oven at 37° C. for 20 hours.
  • [0020]
    The substrate is subsequently bonded by its adhesive face to an endpiece with a diameter of 27 mm which is fixed on a press (Statif Manuel SV-1 from Imada Co. Ltd.) which is equipped with a dynamometer (DPS-5R from Imada Co. Ltd.) On a piece of photo-quality coated paper (reference Epson S041061, 102 g/m2) a strip is drawn which is 4 cm wide and 21 cm long, and within this strip 5 boxes each 4.2 cm long are drawn along the longitudinal axis of the strip. The paper is placed on the bed of the press.
  • [0021]
    In the centre of the first box a drop of 10 μl of artificial sebum is deposited, which has the following composition:
    triolein   29%
    oleic acid 28.5%
    oleyl oleate 18.5%
    squalene   14%
    cholesterol   7%
    cholesteryl palmitate   3%
  • [0022]
    The substrate (comprising the sample of composition) is then pressed onto the first box of the paper strip, with a force of approximately 4 kg exerted for 5 seconds. The paper is then displaced in a regular, rectilinear fashion over the entire length of the strip, in such a way that the substrate is in contact with the entire length of the strip. The speed of displacement of the strip is of the order of 10 cm/s.
  • [0023]
    The trail of product deposited on the paper strip is then observed visually. A grade ranging from 0 to 5 in increments of 0.5 is awarded as a function of the number of boxes, from the first to the fifth, which have been traversed, where appropriate, completely or partly by the trail of product.
  • [0024]
    For certain products, without coloration, a visualization step may be necessary in order to make the trail of product visible. By way of example, a compound is used which is able to produce a coloured reaction on contact with the transferred product. According to another example, an active which emits in the visible range at least some of a UV radiation (Wood lamp) is incorporated into the product under test.
  • [0025]
    Grade 5 is awarded when, by observation, after the relative displacement between paper and substrate has taken place, there is substantially no product (less than 10%) remaining on the substrate. In this case, the transfer may be termed total.
  • [0026]
    Grade 5 is also awarded when the trail of product extends beyond the fifth box, independently of the amount of product remaining on the substrate.
  • [0027]
    Grade 0 is awarded when no product present on the support is transferred to the strip of paper. No visible trace can be observed on the sheet. The transfer may be termed zero.
  • [0028]
    By convention, the line of separation between box n and box n+1 forms part of box n.
  • [0029]
    The table below illustrates the way in which the other grades are awarded as a function of the point in boxes 1 to 5 at which the trail of product ends. For these grades, a larger or smaller amount of product remains on the substrate. The transfer is partial.
    Grade
    No. of the box at More Up to
    which the trail than half half of
    of product stops of the box the box
    5 4.5
    4
    4 3.5
    3
    3 2.5
    2
    2 1.5
    1
    1 0.5
  • [0030]
    The cosmetic composition according to the invention comprises a dispersion of particles, preferably solid particles, of a grafted ethylenic polymer in a liquid fatty phase.
  • [0031]
    The cosmetic composition according to the invention is a composition which is compatible with keratin materials, and particularly with the skin.
  • [0032]
    By “ethylenic” polymer is meant a polymer obtained by polymerization of monomers comprising an ethylenic unsaturation.
  • [0033]
    The grafted ethylenic polymer dispersion is free in particular of stabilizing polymers other than the said grafted polymer, such as those described in EP 749 747, and the particles of grafted ethylenic polymer are therefore not surface-stabilized by such additional stabilizing polymers. The grafted polymer is therefore dispersed in the liquid fatty phase in the absence of additional stabilizer on the surface of the particles of the grafted polymer.
  • [0034]
    By grafted polymer is meant a polymer having a skeleton comprising at least one side chain which is pendent or situated at the chain end, preferably pendent.
  • [0035]
    Advantageously, the grafted ethylenic polymer comprises an ethylenic skeleton which is insoluble in the said liquid fatty phase, and side chains bonded covalently to the said skeleton and soluble in the said dispersion medium.
  • [0036]
    The grafted ethylenic polymer is in particular a non-crosslinked polymer. In particular, the polymer is obtained by polymerizing monomers containing a single polymerizable moiety.
  • [0037]
    Preferably, the grafted ethylenic polymer is a film-forming polymer.
  • [0038]
    By “film-forming” polymer is meant a polymer suitable for forming, on its own or in the presence of an auxiliary film-forming agent, a continuous film which adheres to a substrate, particularly to keratin materials.
  • [0039]
    According to one embodiment of the invention, the grafted ethylenic polymer is a grafted acrylic polymer.
  • [0040]
    The grafted ethylenic polymer is obtainable in particular by free-radical polymerization in an organic polymerization medium:
  • [0041]
    of at least one ethylenic monomer, in particular at least one acrylic monomer and, optionally, at least one additional, non-acrylic, vinyl monomer, to form the said insoluble skeleton; and
  • [0042]
    of at least one macromonomer containing a polymerizable end group for forming side chains, the said macromonomer having a weight-average molecular mass of greater than or equal to 200, the amount of polymerized macromonomer representing from 0.05% to 20% by weight of the polymer.
  • [0043]
    The liquid fatty phase may contain the organic polymerization medium.
  • [0044]
    The liquid organic dispersion medium, corresponding to the medium in which the grafted polymer is provided, may be identical to the polymerization medium.
  • [0045]
    However, the polymerization medium may be wholly or partly substituted by another liquid organic medium. This other liquid organic medium may be added after polymerization to the polymerization medium. The latter is then wholly or partly evaporated.
  • [0046]
    The liquid fatty phase may comprise organic liquid compounds other than those present in the dispersion medium. These other compounds are selected such that the grafted polymer remains in the state of dispersion in the liquid fatty phase.
  • [0047]
    The organic liquid dispersion medium is present in the liquid fatty phase of the composition according to the invention owing to the introduction of the grafted polymer dispersion obtained into the composition.
  • [0048]
    The liquid fatty phase comprises, preferably on a majority basis, one or more liquid organic compounds (or oils) as defined below.
  • [0049]
    In particular, the liquid fatty phase is a liquid organic phase which is non-aqueous and water-immiscible at ambient temperature (25° C.).
  • [0050]
    A “liquid organic compound” is a non-aqueous compound which is in the liquid state at ambient temperature (25° C.) and which therefore flows under its own weight.
  • [0051]
    A “silicone compound” is a compound containing at least one silicon atom.
  • [0052]
    Among the liquid organic compounds or oils, in particular volatile or non-volatile, that may be present in the liquid organic dispersion medium, mention may be made of:
  • [0053]
    liquid organic compounds, especially silicone-based or non-silicone-based, having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2 and preferably less than or equal to 17 (MPa)1/2,
  • [0054]
    monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2, and
  • [0055]
    mixtures thereof.
  • [0056]
    The total solubility parameter δ according to the Hansen solubility space is defined in the article “Solubility parameter values” by Eric A. Grulke in the work “Polymer Handbook”, 3rd Edition, Chapter VII, p. 519-559, by the relationship:
    δ=(d D 2 +d P 2 +d H 2)1/2
    in which
  • [0057]
    dD characterizes the London dispersion forces arising from the formation of dipoles induced during molecular impacts,
  • [0058]
    dP characterizes the Debye interaction forces between permanent dipoles, and
  • [0059]
    dH characterizes the forces of specific interactions (such as hydrogen bonding, acid/base, donor/acceptor, etc.).
  • [0060]
    The definition of solvents in the solubility space according to Hansen is described in the article by C. M. Hansen: “The three dimensional solubility parameters”, J. Paint Technol. 39, 105 (1967).
  • [0061]
    Among the liquid organic compounds, especially silicone-based or non-silicone-based, having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2, mention may be made of liquid fatty substances, especially oils, which may be selected from natural or synthetic, carbon-based, hydrocarbon-based, fluoro and silicone oils, which are optionally branched, alone or as a mixture.
  • [0062]
    An “oil” is any non-aqueous medium which is liquid at ambient temperature (25° C.) and atmospheric pressure (760 mmHg) and is compatible with application to the skin, mucosae (lips) and/or epidermal derivatives (nails, eyebrows, eyelashes, hair).
  • [0063]
    Among these oils, mention may be made of plant oils formed from fatty acid esters and from polyols, in particular triglycerides, such as sunflower oil, sesame oil or rapeseed oil, or esters derived from acids or alcohols containing a long chain (i.e. a chain containing from 6 to 20 carbon atoms), in particular the esters of formula RCOOR′ in which R represents a higher fatty acid residue containing from 7 to 19 carbon atoms and R′ represents a hydrocarbon-based chain containing from 3 to 20 carbon atoms, such as palmitates, adipates and benzoates, in particular diisopropyl adipate.
  • [0064]
    Mention may also be made of linear, branched and/or cyclic alkanes which may be volatile, and in particular liquid paraffin, liquid petroleum jelly or hydrogenated polyisobutylene, isododecane or “Isopars”, volatile isoparaffins. Mention may also be made of esters, ethers and ketones.
  • [0065]
    Mention may also be made of silicone oils such as polydimethylsiloxanes and polymethylphenylsiloxanes, optionally substituted with aliphatic and/or aromatic groups, which are optionally fluorinated, or with functional groups such as hydroxyl, thiol and/or amine groups, and volatile silicone oils, which are especially cyclic.
  • [0066]
    In particular, mention may be made of volatile and/or non-volatile, optionally branched silicone oils.
  • [0067]
    The term “volatile oil” means any non-aqueous medium capable of evaporating from the skin or the lips in less than one hour, and especially having a vapour pressure, at ambient temperature and atmospheric pressure, ranging from 10−3 to 300 mmHg (0.13 Pa to 40 000 Pa).
  • [0068]
    As volatile silicone oils that may be used in the invention, mention may be made of linear or cyclic silicones containing from 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups containing from 1 to 10 carbon atoms. Mention may be made in particular of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, octamethyltrisiloxane and decamethyltetrasiloxane, and mixtures thereof.
  • [0069]
    Among the non-volatile silicone oils that may be mentioned are non-volatile polydialkylsiloxanes, such as non-volatile polydimethylsiloxanes (PDMS); polydimethylsiloxanes comprising alkyl, alkoxy or phenyl groups, which are pendent or at the end of a silicone chain, these groups containing from 2 to 24 carbon atoms; phenyl silicones, for instance phenyl trimethicones, phenyl dimethicones, phenyl trimethylsiloxy diphenylsiloxanes, diphenyl dimethicones, diphenyl methyldiphenyltrisiloxanes and polymethylphenylsiloxanes; polysiloxanes modified with fatty acids (especially of C8-C20), fatty alcohols (especially of C8-C20) or polyoxyalkylenes (especially polyoxyethylene and/or polyoxypropylene); amino polysiloxanes; polysiloxanes containing hydroxyl groups; fluoro polysiloxanes comprising a fluorinated group that is pendent or at the end of a silicone chain, containing from 1 to 12 carbon atoms, all or some of the hydrogens of which are substituted by fluorine atoms; and mixtures thereof.
  • [0070]
    As non-silicone-based liquid organic compounds with a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2, mention may be made in particular of:
  • [0071]
    linear, branched or cyclic esters containing at least 6 carbon atoms, especially 6 to 30 carbon atoms;
  • [0072]
    ethers containing at least 6 carbon atoms, especially 6 to 30 carbon atoms; and
  • [0073]
    ketones containing at least 6 carbon atoms, especially 6 to 30 carbon atoms.
  • [0074]
    The expression “liquid monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2” means aliphatic fatty liquid monoalcohols containing from 6 to 30 carbon atoms, the hydrocarbon-based chain not comprising a substitution group. Monoalcohols according to the invention that may be mentioned include oleyl alcohol, decanol and linoleyl alcohol.
  • [0075]
    Advantageously, the composition according to the invention may comprise a volatile oil in an amount ranging from 1% to 90% by weight, relative to the total weight of the composition, and preferably ranging from 5% to 70% by weight.
  • [0076]
    The composition may comprise a non-volatile oil in an amount ranging from 0.1% to 80% by weight, relative to the total weight of the composition, and preferably ranging from 3% to 50% by weight.
  • [0077]
    According to a first embodiment of the invention, the liquid fatty phase may be a non-silicone-based liquid fatty phase.
  • [0078]
    The term “non-silicone-based liquid fatty phase” means a fatty phase comprising one or more non-silicone-based liquid organic compound(s) or oil(s), such as those mentioned above, the said non-silicone compounds being predominantly present in the liquid fatty phase, i.e. to at least 50% by weight, especially from 50% to 100% by weight, preferably from 60% to 100% by weight (for example from 60% to 99% by weight), or alternatively from 65% to 100% by weight (for example from 65% to 95% by weight), relative to the total weight of the liquid fatty phase.
  • [0079]
    The non-silicone-based liquid organic compounds may especially be selected from:
  • [0080]
    non-silicone-based liquid organic compounds having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2,
  • [0081]
    monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2; and
  • [0082]
    mixtures thereof.
  • [0083]
    The said non-silicone-based liquid fatty phase may thus optionally comprise silicone-based liquid organic compounds or oils, such as those mentioned previously, which may be present in an amount of less than 50% by weight, especially ranging from 0.1% to 40% by weight, or even ranging from 1% to 35% by weight, or alternatively ranging from 5% to 30% by weight, relative to the total weight of the liquid fatty phase.
  • [0084]
    According to one particular embodiment of the invention, the non-silicone-based liquid fatty phase does not contain any silicone-based liquid organic compounds or oils.
  • [0085]
    When the liquid fatty phase is a non-silicone-based liquid fatty phase, the macromonomers present in the grafted polymer are advantageously carbon-based macromonomers as described below.
  • [0086]
    The term “non-silicone-based grafted polymer” means a grafted polymer predominantly containing a carbon-based macromonomer and optionally containing not more than 7% by weight of the total weight of the polymer, and preferably not more than 5% by weight, of silicone macromonomer, or even being free of silicone macromonomer.
  • [0087]
    According to a second embodiment of the invention, the liquid fatty phase may be a silicone-based liquid fatty phase.
  • [0088]
    The term “silicone-based liquid fatty phase” means a fatty phase comprising one or more silicone-based liquid organic compound(s) or silicone oil(s) such as those described previously, the said silicone compounds being predominantly present in the liquid fatty phase, i.e. to at least 50% by weight, especially from 50% to 100% by weight, preferably from 60% to 100% by weight (for example from 60% to 99% by weight), or even from 65% to 100% by weight (for example from 65% to 95% by weight), relative to the total weight of the liquid fatty phase.
  • [0089]
    The silicone-based liquid organic compounds may especially be selected from:
  • [0090]
    liquid organic compounds, which are especially non-silicone-based or silicone-based, with a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2.
  • [0091]
    The said silicone-based liquid fatty phase may thus optionally comprise non-silicone-based liquid organic compounds or oils, as described previously, which may be present in an amount of less than 50% by weight, especially ranging from 0.1% to 40% by weight, or even ranging from 1% to 35% by weight, or else ranging from 5% to 30% by weight, relative to the total weight of the liquid fatty phase.
  • [0092]
    According to one particular embodiment of the invention, the silicone-based liquid fatty phase contains no non-silicone-based liquid organic compounds.
  • [0093]
    When the liquid fatty phase is a silicone-based liquid fatty phase, the macromonomers present in the grafted polymer are advantageously silicone-based macromonomers as described below.
  • [0094]
    In particular, when the liquid fatty phase is a silicone-based liquid fatty phase, the grafted polymer present in the composition is advantageously a silicone-based grafted polymer.
  • [0095]
    The term “silicone-based grafted polymer” means a grafted polymer predominantly containing a silicone-based macromonomer optionally containing up to 7% by weight of the total weight of the polymer, and preferably up to 5% by weight, of carbon-based macromonomer, or even being free of carbon-based macromonomer.
  • [0096]
    The choice of monomers constituting the skeleton of the polymer, of macromonomers, the molecular weight of the polymer, and the proportion of the monomers and macromonomers may be made as a function of the liquid organic dispersion medium so as advantageously to obtain a dispersion of particles of grafted polymers, in particular a stable dispersion, this choice possibly being made by a person skilled in the art.
  • [0097]
    The term “stable dispersion” means a dispersion that is not liable to form a solid deposit or to undergo liquid/solid phase separation, especially after centrifugation, for example, at 4000 rpm for 15 minutes.
  • [0098]
    The grafted ethylenic polymer forming the particles in dispersion thus comprises a skeleton that is insoluble in the said dispersion medium and a portion that is soluble in the said dispersion medium.
  • [0099]
    The grafted ethylenic polymer may be a random polymer.
  • [0100]
    According to the invention, the term “grafted ethylenic polymer” means a polymer obtainable by free-radical polymerization:
  • [0101]
    of one or more ethylenic monomer(s),
  • [0102]
    with one or more macromonomer(s), in an organic polymerization medium.
  • [0103]
    According to the invention, a “grafted acrylic polymer” is a polymer obtainable by free-radical polymerization:
  • [0104]
    of one or more acrylic monomers and, optionally, one or more additional non-acrylic vinyl monomers,
  • [0105]
    with one or more macromonomers in an organic polymerization medium.
  • [0106]
    Advantageously, the acrylic monomers represent from 50% to 100% by weight, preferably from 55% to 100% by weight (in particular from 55% to 95% by weight), preferentially from 60% to 100% by weight (in particular from 60% to 90% by weight) of the mixture of acrylic monomers+optional non-acrylic vinyl monomers.
  • [0107]
    Preferably, the acrylic monomers are selected from monomers whose homopolymer is insoluble in the dispersion medium under consideration, i.e. the homopolymer is in solid (or non-dissolved) form at a concentration of greater than or equal to 5% by weight at ambient temperature (20° C.) in the said dispersion medium.
  • [0108]
    According to the invention, the expression “macromonomer containing a polymerizable end group” means any polymer comprising on only one of its ends a polymerizable end group capable of reacting during the polymerization reaction with acrylic monomers and optionally the additional non-acrylic vinyl monomers constituting the skeleton. The macromonomer makes it possible to form the side chains of the grafted acrylic polymer. The polymerizable group of the macromonomer may advantageously be an ethylenically unsaturated group capable of free-radical polymerization with the monomers constituting the skeleton.
  • [0109]
    The term “carbon-based macromonomer” means a non-silicone-based macromonomer and especially an oligomeric macromonomer obtained by polymerization of ethylenically unsaturated non-silicone-based monomer(s), and mainly by polymerization of acrylic and/or non-acrylic vinyl monomers.
  • [0110]
    The term “silicone-based macromonomer” means an organopolysiloxane macromonomer and in particular a polydimethylsiloxane macromonomer.
  • [0111]
    Preferably, the macromonomer is selected from macromonomers whose homopolymer is soluble in the dispersion medium under consideration, i.e. fully dissolved at a concentration of greater than or equal to 5% by weight and at ambient temperature in the said dispersion medium.
  • [0112]
    Thus, the grafted acrylic polymer comprises a skeleton (or main chain) consisting of a sequence of acrylic units resulting from the polymerization especially of one or more acrylic monomers and of side chains (or grafts) derived from the reaction of the macromonomers, the said side chains being covalently bonded to the said main chain.
  • [0113]
    The skeleton (or main chain) is insoluble in the dispersion medium under consideration, whereas the side chains (or grafts) are soluble in the said dispersion medium.
  • [0114]
    In the present patent application, the term “acrylic monomers” means monomers selected from (meth)acrylic acid, (meth)acrylic acid esters (also known as (meth)acrylates), and (meth)acrylic acid amides (also known as (meth)acrylamides).
  • [0115]
    As acrylic monomers that may be used to form the insoluble skeleton of the polymer, mention may be made, alone or as a mixture, of the following monomers, and also the salts thereof:
  • [0116]
    (i) the (meth)acrylates of formula:
    Figure US20060251601A1-20061109-C00001

    in which:
  • [0117]
    R1 denotes a hydrogen atom or a methyl group;
  • [0118]
    R2 represents a group selected from:
      • a linear or branched alkyl group containing from 1 to 6 carbon atoms, the said group possibly comprising in its chain one or more heteroatoms selected from O, N and S; and/or possibly comprising one or more substituents selected from —OH, halogen atoms (F, Cl, Br or I) and —NR′R″ with R′ and R″, which may be identical or different, selected from linear or branched C1-C4 alkyls; and/or possibly being substituted with at least one polyoxyalkylene group, in particular with C2-C4 alkylene, especially polyoxyethylene and/or polyoxypropylene, the said polyoxyalkylene group consisting of a repetition of 5 to 30 oxyalkylene units;
      • a cyclic alkyl group containing from 3 to 6 carbon atoms, the said group possibly comprising in its chain one or more heteroatoms selected from O, N and S, and/or possibly comprising one or more substituents selected from OH and halogen atoms (F, Cl, Br or I).
  • [0121]
    Examples of R2 that may be mentioned include the methyl, ethyl, propyl, butyl, isobutyl, methoxyethyl, ethoxyethyl, methoxypolyoxyethylene (350 EO), trifluoroethyl, 2-hydroxyethyl, 2-hydroxypropyl, dimethylaminoethyl, diethylaminoethyl or dimethylaminopropyl group;
  • [0122]
    (ii) the (meth)acrylamides of formula:
    Figure US20060251601A1-20061109-C00002

    in which:
  • [0123]
    R3 denotes a hydrogen atom or a methyl group;
  • [0124]
    R4 and R5, which may be identical or different, represent a hydrogen atom or a linear or branched alkyl group containing from 1 to 6 carbon atoms, which may comprise one or more substituents selected from —OH, halogen atoms (F, Cl, Br or I) and —NR′R″ with R′ and R″, which may be identical or different, selected from linear or branched C1-C4 alkyls; or
  • [0125]
    R4 represents a hydrogen atom and R5 represents a 1,1-dimethyl-3-oxobutyl group.
  • [0126]
    As examples of alkyl groups that can constitute R4 and R5, mention may be made of n-butyl, t-butyl, n-propyl, dimethylaminoethyl, diethylaminoethyl and dimethylaminopropyl.
  • [0127]
    (iii) (meth)acrylic monomers comprising at least one carboxylic, phosphoric or sulfonic acid function, such as acrylic acid, methacrylic acid and acrylamidopropanesulfonic acid.
  • [0128]
    Among these acrylic monomers, those that may be mentioned most particularly are methyl, ethyl, propyl, butyl and isobutyl (meth)acrylates; methoxyethyl or ethoxyethyl (meth)acrylates; trifluoroethyl methacrylate; dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate; dimethylaminopropylmethacrylamide; (meth)acrylic acid; and the salts thereof; and mixtures thereof.
  • [0129]
    Preferably, the acrylic monomers are selected from methyl acrylate, methoxyethyl acrylate, methyl methacrylate, 2-hydroxyethyl methacrylate, (meth)acrylic acid and dimethylaminoethyl methacrylate, and mixtures thereof.
  • [0130]
    Among the additional non-acrylic vinyl monomers that may be mentioned are:
  • [0131]
    vinyl esters of formula: R6—COO—CH═CH2
  • [0000]
    in which R6 represents a linear or branched alkyl group containing from 1 to 6 carbon atoms, or a cyclic alkyl group containing from 3 to 6 carbon atoms and/or an aromatic group, for example of benzene, anthracene or naphthalene type;
  • [0132]
    non-acrylic vinyl monomers comprising at least one carboxylic, phosphoric or sulfonic acid function, such as crotonic acid, maleic anhydride, itaconic acid, fumaric acid, maleic acid, styrenesulfonic acid, vinylbenzoic acid, vinylphosphoric acid, and salts thereof;
  • [0133]
    non-acrylic vinyl monomers comprising at least one tertiary amine function, such as 2-vinylpyridine or 4-vinylpyridine;
  • [0134]
    and mixtures thereof.
  • [0135]
    According to one embodiment of the invention, the grafted polymer comprises (meth)acrylic acid.
  • [0136]
    Advantageously, the acrylic monomers present in the grafted polymer comprise at least (meth)acrylic acid, and in particular at least (meth)acrylic acid and at least one monomer selected from the (meth)acrylates and the (meth)acrylamides described above in sections (i) and (ii). Preferably, the acrylic monomers comprise at least (meth)acrylic acid and at least one monomer selected from C1-C3 alkyl (meth)acrylates. (Meth)acrylic acid may be present in an amount of at least 5% by weight, relative to the total weight of the polymer (in particular ranging from 5% to 80% by weight), preferably of at least 10% by weight (in particular ranging from 10% by weight to 70% by weight), preferentially of at least 15% by weight (in particular ranging from 15% to 60% by weight).
  • [0137]
    Among the salts, those that may be mentioned are those obtained by neutralization of acidic moieties with inorganic bases such as sodium hydroxide, potassium hydroxide or ammonium hydroxide, or organic bases such as alkanolamines, for instance monoethanolamine, diethanolamine, triethanolamine or 2-methyl-2-amino-1-propanol.
  • [0138]
    Mention may also be made of the salts formed by neutralization of tertiary amine units, for example using a mineral or organic acid. Among the mineral acids that may be mentioned are sulfuric acid, hydrochloric acid, hydrobromic acid, hydriodic acid, phosphoric acid and boric acid. Among the organic acids that may be mentioned are acids comprising one or more carboxylic, sulfonic or phosphonic groups. They may be linear, branched or cyclic aliphatic acids, or alternatively aromatic acids. These acids may also comprise one or more heteroatoms selected from O and N, for example in the form of hydroxyl groups. Acetic acid or propionic acid, terephthalic acid, and citric acid and tartaric acid may especially be mentioned.
  • [0139]
    According to one embodiment of the invention, the grafted acrylic polymer contains no additional non-acrylic vinyl monomers as described above. In this embodiment, the insoluble skeleton of the grafted ethylenic polymer is formed solely from acrylic monomers as described previously.
  • [0140]
    It is understood that these non-polymerized acrylic monomers may be soluble in the dispersion medium under consideration, but the polymer formed with these monomers is insoluble in the dispersion medium.
  • [0141]
    According to one particular embodiment of the invention, the grafted ethylenic polymer is obtainable by free-radical polymerization in an organic polymerization medium:
  • [0142]
    of a principal acrylic monomer selected from C1-C3 alkyl (meth)acrylates, alone or in a mixture, and, optionally, of one or more additional acrylic monomers selected from acrylic acid, methacrylic acid and the alkyl (meth)acrylates of formula (I) defined below, and salts thereof, to form the said insoluble skeleton; and
  • [0143]
    of at least one silicone-based macromonomer comprising a polymerizable end group, as defined above.
  • [0144]
    As main acrylic monomer it is possible to use methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, n-propyl methacrylate, isopropyl acrylate and isopropyl methacrylate, and mixtures thereof.
  • [0145]
    Very particular preference is given to methyl acrylate, methyl methacrylate and ethyl methacrylate.
  • [0146]
    The additional acrylic monomers may be selected from:
  • [0147]
    (meth)acrylic acid and its salts,
  • [0148]
    the (meth)acrylates of formula (I) and their salts:
    Figure US20060251601A1-20061109-C00003

    in which:
  • [0149]
    R′1 denotes a hydrogen atom or a methyl group;
  • [0150]
    R′2 represents
      • a linear or branched alkyl group containing from 1 to 6 carbon atoms, the said group comprising in its chain one or more oxygen atoms and/or comprising one or more substituents selected from —OH, halogen atoms (F, Cl, Br, I) and —NR′R″, where R′ and R″ are identical or different and selected from linear or branched C1-C3 alkyls;
      • a cyclic alkyl group containing from 3 to 6 carbon atoms, it being possible for the said group to comprise in its chain one or more oxygen atoms and/or to comprise one or more substituents selected from OH and halogen atoms (F, Fl, Br, I);
  • [0153]
    and mixtures thereof.
  • [0154]
    Possible examples of R12 include the group methoxyethyl, ethoxyethyl, trifluoroethyl; 2-hydroxyethyl, 2-hydroxypropyl, dimethylaminoethyl, diethylaminoethyl, dimethylaminopropyl.
  • [0155]
    Among these additional acrylic monomers mention may be made very particularly of (meth)acrylic acid, methoxyethyl or ethoxyethyl (meth)acrylates; trifluoroethyl methacrylate; dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxyethyl acrylate, salts thereof, and mixtures thereof.
  • [0156]
    Very particular preference is given to acrylic acid, methylacrylic acid.
  • [0157]
    The macromonomers comprise at one of the ends of the chain a polymerizable end group capable of reacting during the polymerization with the acrylic monomers and optionally the additional vinyl monomers, to form the side chains of the grafted ethylenic polymer. The said polymerizable end group may in particular be a vinyl or (meth)acrylate (or (meth)acryloyl) group, and preferably a (meth)acrylate group.
  • [0158]
    The macromonomers are preferably selected from macromonomers whose homopolymer has a glass transition temperature (Tg) of less than or equal to 25° C., especially ranging from −100° C. to 25° C. and preferably ranging from −80° C. to 0° C.
  • [0159]
    The macromonomers have a weight-average molecular mass of greater than or equal to 200, preferably greater than or equal to 300, preferentially greater than or equal to 500 and more preferentially greater than 600.
  • [0160]
    Preferably, the macromonomers have a weight-average molecular mass (Mw) ranging from 200 to 100 000, preferably ranging from 500 to 50 000, preferentially ranging from 800 to 20 000, more preferentially ranging from 800 to 10 000 and even more preferentially ranging from 800 to 6000.
  • [0161]
    In the present patent application, the weight-average (Mw) and number-average (Mn) molar masses are determined by liquid gel permeation chromatography (THF solvent, calibration curve established with linear polystyrene standards, refractometric detector).
  • [0162]
    Carbon-based macromonomers that may in particular be mentioned include:
  • [0163]
    (i) homopolymers and copolymers of linear or branched C8-C22 alkyl (meth)acrylate, containing a polymerizable end group selected from vinyl or (meth)acrylate groups, among which mention may be made in particular of: poly(2-ethylhexyl acrylate) macromonomers with a mono(meth)acrylate end group; poly(dodecyl acrylate) or poly(dodecyl methacrylate) macromonomers with a mono(meth)acrylate end group; poly(stearyl acrylate) or poly(stearyl methacrylate) macromonomers with a mono(meth)acrylate end group.
  • [0164]
    Such macromonomers are described in particular in the patents EP 895 467 and EP 96 459, and in the article by Gillman K. F., Polymer Letters, Vol 5, pages 477-481 (1967).
  • [0165]
    Mention may be made in particular of macromonomers based on poly(2-ethylhexyl acrylate) or poly(dodecyl acrylate) with a mono(meth)acrylate end group;
  • [0166]
    (ii) polyolefins containing an ethylenically unsaturated end group, in particular containing a (meth)acrylate end group. Examples of such polyolefins that may be mentioned in particular include the following macromonomers, it being understood that they have a (meth)acrylate end group: polyethylene macromonomers, polypropylene macromonomers, macromonomers of polyethylene/polypropylene copolymer, macromonomers of polyethylene/polybutylene copolymer, polyisobutylene macromonomers; polybutadiene macromonomers; polyisoprene macromonomers; polybutadiene macromonomers; poly(ethylene/butylene)polyisoprene macromonomers.
  • [0167]
    Such macromonomers are described in particular in U.S. Pat. No. 5,625,005, which mentions ethylene/butylene and ethylene/propylene macromonomers containing a (meth)acrylate reactive end group.
  • [0168]
    Mention may be made in particular of the poly(ethylene/butylene) methacrylate such as that sold under the name Kraton Liquid L-1253 by Kraton Polymers.
  • [0169]
    Silicone-based macromonomers that may be mentioned in particular include polydimethylsiloxanes with a mono(meth)acrylate end group, and especially those of formula (II) below:
    Figure US20060251601A1-20061109-C00004

    in which R8 denotes a hydrogen atom or a methyl group; R9 denotes a divalent hydrocarbon-based group containing from 1 to 10 carbon atoms and optionally contains one or two ether bonds —O—; R10 denotes an alkyl group containing from 1 to 10 carbon atoms and especially from 2 to 8 carbon atoms; n denotes an integer ranging from 1 to 300, preferably ranging from 3 to 200 and preferentially ranging from 5 to 100.
  • [0170]
    Silicone-based macromonomers that may be used include monomethacryloxypropyl polydimethylsiloxanes such as those sold under the name PS560-K6 by the company United Chemical Technologies Inc. (UCT) or under the name MCR-M17 by the company Gelest Inc.
  • [0171]
    Preferably, the polymerized macromonomer (constituting the side chains of the grafted polymer) represents from 0.1% to 15% by weight of the total weight of the polymer, preferably from 0.2% to 10% by weight and more preferably from 0.3% to 8% by weight.
  • [0172]
    As particularly preferred grafted ethylenic polymer dispersed in a non-silicone-based liquid fatty phase, it is possible to use those obtained by polymerization:
  • [0173]
    of methyl acrylate and of a polyethylene/polybutylene macromonomer with a methacrylate end group (especially Kraton L-1253), in particular in a solvent selected from isododecane, isononyl isononanoate, octyldodecanol, diisostearyl malate and a C12-C15 alkyl benzoate (such as Finsolv TN);
  • [0174]
    of methoxyethyl acrylate and of a polyethylene/polybutylene macromonomer with a methacrylate end group (especially Kraton L-1253), in particular in isododecane;
  • [0175]
    of methyl acrylate/methyl methacrylate monomers and of a polyethylene/polybutylene macromonomer with a methacrylate end group (especially Kraton L-1253), in particular in isododecane;
  • [0176]
    of methyl acrylate/acrylic acid monomers and of a polyethylene/polybutylene macromonomer with a methacrylate end group (especially Kraton L-1253), in particular in isododecane;
  • [0177]
    of methyl acrylate/dimethylaminoethyl methacrylate monomers and of a polyethylene/polybutylene macro-monomer with a methacrylate end group (especially Kraton L-1253), in particular in isododecane;
  • [0178]
    of methyl acrylate/2-hydroxyethyl methacrylate monomers and of a polyethylene/polybutylene macro-monomer with a methacrylate end group (especially Kraton L-1253), in particular in isododecane.
  • [0179]
    As particularly preferred grafted acrylic polymer dispersed in a silicone-based liquid fatty phase, it is possible to use those obtained by polymerization:
  • [0180]
    of methyl acrylate and of a monomethacryloyloxypropyl polydimethylsiloxane macromonomer with a weight-average molecular weight ranging from 800 to 6000, in particular in decamethylcyclopentasiloxane or phenyltrimethicone;
  • [0181]
    of methyl acrylate, acrylic acid and the monomethacryloyloxypropyl polydimethylsiloxane macromonomer with a weight-average molecular weight ranging from 800 to 6000, in particular in decamethylcyclopentasiloxane or phenyltrimethicone.
  • [0182]
    The weight-average molecular mass (Mw) of the grafted polymer is preferably between 10 000 and 300 000, especially between 20 000 and 200 000 and better still between 25 000 and 150 000.
  • [0183]
    By virtue of the abovementioned characteristics, in a given organic dispersion medium, the polymers have the capacity of folding over on themselves, thus forming particles of substantially spherical shape, the periphery of these particles having the deployed side chains, which ensure the stability of these particles. Such particles resulting from the characteristics of the grafted polymer have the particular feature of not agglomerating in the said medium and thus of being self-stabilized and of forming a particularly stable polymer particle dispersion.
  • [0184]
    In particular, the grafted ethylenic polymers of the dispersion are capable of forming nanometre-sized particles, with a mean size ranging from 10 to 400 nm and preferably from 20 to 200 nm.
  • [0185]
    As a result of this very small size, the grafted polymer particles in dispersion are particularly stable and therefore have little susceptibility to form agglomerates.
  • [0186]
    The dispersion of grafted polymer may thus be a dispersion that is stable and does not form sediments when it is placed at ambient temperature (25° C.) for an extended period (for example 24 hours).
  • [0187]
    Preferably, the dispersion of grafted polymer particles has a solids content (or dry extract) of polymer of from 40% to 70% by weight of solids and especially from 45% to 65% by weight.
  • [0188]
    The dispersion of grafted polymer particles may be prepared by a process comprising a free-radical copolymerization step, in an organic polymerization medium, of one or more acrylic monomers as defined above with one or more macromonomers as defined above.
  • [0189]
    As mentioned previously, the liquid organic dispersion medium may be identical to or different from the polymerization medium.
  • [0190]
    The copolymerization may be performed conventionally in the presence of a polymerization initiator. The polymerization initiators may be free-radical initiators. In general, such a polymerization initiator may be selected from organic peroxide compounds such as dilauroyl peroxide, dibenzoyl peroxide or tert-butyl peroxy-2-ethylhexanoate; diazo compounds such as azobisisobutyronitrile or azobisdimethylvaleronitrile.
  • [0191]
    The reaction may also be initiated using photoinitiators or with radiation such as UV or neutrons, or with plasma.
  • [0192]
    In general, to perform this process, at least a portion of the organic polymerization medium, a portion of the additional acrylic and/or vinyl monomers, which will constitute the insoluble skeleton after polymerization, all of the macromonomer (which will constitute the side chains of the polymer) and a portion of the polymerization initiator are introduced into a reactor whose size is suitable for the amount of polymer to be prepared. At this stage of introduction, the reaction medium forms a relatively homogeneous medium.
  • [0193]
    The reaction medium is then stirred and heated up to a temperature to obtain polymerization of the monomers and macromonomers. After a certain time, the initially homogeneous and clear medium leads to a dispersion of milky appearance. A mixture consisting of the remaining portion of monomers and of polymerization initiator is then added. After an adequate time during which the mixture is heated with stirring, the medium stabilizes in the form of a milky dispersion, the dispersion comprising polymer particles stabilized in the medium in which they have been created, the said stabilization being due to the presence, in the polymer, of side chains that are soluble in the said dispersion medium.
  • [0194]
    The grafted polymer described above may be present in the composition according to the invention in an amount ranging from 0.5% to 45% by weight relative to the total weight of the composition, preferably ranging from 1% to 30% by weight and preferentially ranging from 2% to 25% by weight.
  • [0195]
    The composition according to the invention may comprise one or more colorants selected from water-soluble dyes and pulverulent colorants such as pigments, nacres and flakes, which are well known to the person skilled in the art. The colorants may be present in the composition in an amount ranging from 0.01% to 50% by weight, relative to the weight of the composition, preferably from 0.01% to 30% by weight.
  • [0196]
    By pigments are meant white or coloured, mineral or organic particles of any form which are insoluble in the physiological medium and are intended for colouring the composition.
  • [0197]
    Nacres are irridescent particles of any form, produced in particular by certain molluscs within their shell, or else synthesized.
  • [0198]
    The pigments may be white or coloured, mineral and/or organic. Among mineral pigments mention may be made of titanium dioxide, optionally surface-treated, zirconium oxide or cerium oxide, and also zinc oxide, iron oxide (black, yellow or red) or chromium oxide, manganese violet, ultramarine blue, chromium hydrate and ferric blue, and metal powders such as aluminium powder and copper powder.
  • [0199]
    Among organic pigments mention may be made of carbon black, D & C pigments, and lakes based on cochineal carmine, barium, strontium, calcium and aluminium.
  • [0200]
    Mention may also be made of effect pigments, such as particles comprising an organic or mineral, natural or synthetic substrate, for example glass, acrylic resins, polyester, polyurethane, polyethylene terephthalate, ceramics or aluminas, the said substrate being bare or covered with metallic substances such as aluminium, gold, silver, platinum, copper, bronze, or with metal oxides such as titanium dioxide, iron oxide, chromium oxide and mixtures thereof.
  • [0201]
    The nacreous pigments may be selected from white nacreous pigments such as titanium-coated mica, or bismuth oxychloride, coloured nacreous pigments such as titanium mica coated with iron oxides, titanium mica coated with, in particular, ferric blue or chromium oxide, titanium mica coated with an organic pigment of the aforementioned type, and also nacreous pigments based on bismuth oxychloride. Use may also be made of interference pigments, especially liquid-crystal pigments or multilayer pigments.
  • [0202]
    Advantageously, the grafted polymer present in the composition according to the invention makes it possible to obtain a good, homogeneous dispersion of the pulverulent colorants such as the pigments or the nacres.
  • [0203]
    The invention accordingly further provides a foundation composition comprising a dispersion of particles of grafted ethylenic polymer in a liquid fatty phase, as described above, and at least one colorant, especially pigments and nacres, or any other filler having an optical effect.
  • [0204]
    The water-soluble dyes are, for example, beetroot juice and methylene blue.
  • [0205]
    The composition according to the invention may further comprise one or more fillers, in particular in an amount ranging from 0.01% to 50% by weight, relative to the total weight of the composition, preferably ranging from 0.01% to 30% by weight. By fillers are meant particles of any shape, colourless or white, mineral or synthetic, which are insoluble in the medium of the composition irrespective of the temperature at which the composition is manufactured. These fillers serve in particular to modify the rheology or texture of the composition.
  • [0206]
    The fillers may be mineral or organic fillers of any form, platelet-like, spherical or oblong, irrespective of the crystallographic form (for example, leaflet, cubic, hexagonal, orthorhombic, etc.). Mention may be made of talc, mica, silica, kaolin, polyamide (Nylon®) powders (Orgasol® from Atochem), poly-β-alanine powders and polyethylene powders, powders of polymers of tetrafluoroethylene (Teflon®), lauroyllysine, starch, boron nitride, hollow polymeric microspheres such as those of polyvinylidene chloride/acrylonitrile, for instance Expancel® (Nobel Industries), and of acrylic acid copolymers (Polytrap® from Dow Corning), and silicone resin microbeads (Tospearls® from Toshiba, for example), particles of elastomeric organopolysiloxanes, precipitated calcium carbonate, magnesium carbonate and bicarbonate, hydroxyapatite, hollow silica microspheres (Silica Beads® from Maprecos), glass or ceramic microcapsules, metal soaps derived from organic carboxylic acids having 8 to 22 carbon atoms, preferably 12 to 18 carbon atoms, for example zinc stearate, magnesium stearate or lithium stearate, zinc laurate and magnesium myristate.
  • [0207]
    The composition according to the invention may further comprise ingredients commonly used in cosmetology, such as vitamins, moisturizers, emollients, free-radical scavengers, thickeners, trace elements, softeners, sequesterants, perfumes, alkalifying or acidifying agents, preservatives, sunscreens, surfactants, antioxidants, gums, waxes, propellants, or mixtures thereof.
  • [0208]
    The person skilled in the art will of course take care to select this or these optional additional compounds, and/or their amount, such that the advantageous properties of the corresponding composition according to the invention are not, or not substantially, adversely affected by the intended addition.
  • [0209]
    The composition according to the invention may be present in particular in the form of a suspension, dispersion, solution, gel, emulsion, particularly an oil-in-water (O/W) or water-in-oil (W/O) emulsion, or multiple (W/O/W or polyol/O/W or O/W/O) emulsion, in the form of a cream, paste or mousse, a dispersion of vesicles, especially of ionic or nonionic lipids, a two-phase or multiphase lotion, or a spray, powder or paste. The composition may be anhydrous: for example, it may comprise a stick or an anhydrous paste. The composition may be a composition which is used without rinsing.
  • [0210]
    A person skilled in the art may select the appropriate galenical form, and also the method of preparing it, on the basis of his or her general knowledge, taking into account firstly the nature of the constituents used, especially their solubility in the vehicle, and secondly the intended application of the composition.
  • [0211]
    According to another aspect, the invention also relates to a cosmetic assembly comprising:
      • i) a container delimiting at least one compartment, the said container being closed by a closing member; and
      • ii) a composition disposed within the said compartment, the composition being in accordance with the invention.
  • [0214]
    The container may be in any appropriate form. It may especially be in the form of a bottle, a tube, a jar, a case, a box, a sachet or a carton.
  • [0215]
    The closing member may be in the form of a removable stopper, a lid, a cap, a tear-off strip or a capsule, especially of the type comprising a body attached to the container and a cover cap articulated on the body. It may also be in the form of a member for selectively closing the container, especially a pump, a valve or a flap valve.
  • [0216]
    The container may be combined with an applicator, especially in the form of a block of foam or of elastomer, a felt or a spatula. The applicator may be free (tuft or sponge) or securely fastened to a rod borne by the closing member, as described, for example, in patent U.S. Pat. No. 5,492,426. The applicator may be securely fastened to the container, as described, for example, in patent FR 2 761 959.
  • [0217]
    The product may be contained directly in the container, or indirectly. By way of example, the product may be arranged on an impregnated support, especially in the form of a wipe or a pad, and arranged (individually or in plurality) in a box or in a sachet. Such a support incorporating the product is described, for example, in patent application WO 01/03538.
  • [0218]
    The closing member may be coupled to the container by screwing. Alternatively, the coupling between the closing member and the container is done other than by screwing, especially via a bayonet mechanism, by snap-fastening, gripping, welding, adhesive bonding or by magnetic attraction. The term “snap-fastening” in particular means any system involving the crossing of a bead or cord of material by elastic deformation of a portion, especially of the closing member, followed by return to the elastically unconstrained position of the said portion after the crossing of the bead or cord.
  • [0219]
    The container may be at least partially made of thermoplastic material. Examples of thermoplastic materials that may be mentioned include polypropylene or polyethylene.
  • [0220]
    Alternatively, the container is made of non-thermoplastic material, especially glass or metal (or alloy).
  • [0221]
    The container may have rigid walls or deformable walls, especially in the form of a tube or a tubular bottle.
  • [0222]
    The container may comprise means for distributing or facilitating the distribution of the composition. By way of example, the container may have deformable walls so as to allow the composition to exit in response to a positive pressure inside the container, this positive pressure being caused by elastic (or non-elastic) squeezing of the walls of the container. Alternatively, especially when the product is in the form of a stick, the product may be driven out by a piston mechanism. Still in the case of a stick, especially of makeup product (lipstick, foundation, etc.), the container may comprise a mechanism, especially a rack mechanism, a threaded-rod mechanism or a helical groove mechanism, and may be capable of moving a stick in the direction of the said aperture. Such a mechanism is described, for example, in patent FR 2 806 273 or in patent FR 2 775 566. Such a mechanism for a liquid product is described in patent FR 2 727 609.
  • [0223]
    The container may consist of a carton with a base delimiting at least one housing containing the composition, and a lid, especially articulated on the base, and capable of at least partially covering the said base. Such a carton is described, for example, in patent application WO 03/018423 or in patent FR 2 791 042.
  • [0224]
    The container may be equipped with a drainer arranged in the region of the aperture of the container. Such a drainer makes it possible to wipe the applicator and possibly the rod to which it may be securely fastened. Such a drainer is described, for example, in patent FR 2 792 618.
  • [0225]
    The composition may be at atmospheric pressure inside the container (at room temperature) or pressurized, especially by means of a propellent gas (aerosol). In the latter case, the container is equipped with a valve (of the type used for aerosols).
  • [0226]
    The content of the patents or patent applications mentioned above is incorporated by reference into the present patent application.
  • [0227]
    The invention will now be described in more detail in the light of the following examples, which are given by way of illustration and not of limitation.
  • [0228]
    The present examples illustrate the preparation of polymers in accordance with the invention that are suitable for forming a dispersion of particles in an organic medium under consideration.
  • [0229]
    In these examples, following preparation of the said dispersion, the weight-average (Mw) and number-average (Mn) molar masses of the polymer, the glass transition temperature of the polymer, the solids content (or dry extract) of the dispersion and the size of the polymer particles are determined.
  • [0230]
    The weight-average (Mw) and number-average (Mn) molar masses are determined by liquid gel-permeation chromatography (THF solvent, calibration curve established with linear polystyrene standards, refractometric detector).
  • [0231]
    The measurement of the glass transition temperature (Tg) is performed according to standard ASTM D3418-97, by differential thermal analysis (DSC “Differential Scanning Calorimetry”) on a calorimeter, over a temperature range between −100° C. and +150° C., at a heating rate of 10° C./minute in 150 μl aluminium crucibles.
  • [0232]
    The crucibles are prepared in the following manner: 100 μl of the dispersion obtained are introduced into a 150 μl aluminium crucible and the solvent is allowed to evaporate over 24 hours at 2.0 ambient temperature and at 50% relative humidity. The operation is repeated and the crucible is then introduced into a Mettler DSC30 calorimeter.
  • [0233]
    The solids content (or dry extract), i.e. the amount of non-volatile matter, may be measured in various ways: mention may be made, for example, of the methods by oven-drying or the methods by drying by exposure to infrared radiation.
  • [0234]
    The solids content is preferably measured by heating the sample with infrared rays with a wavelength of from 2 μm to 3.5 μm. The substances contained in the composition that have a high vapour pressure evaporate under the effect of this radiation. Measuring the weight loss of the sample makes it possible to determine the dry extract of the composition. These measurements are performed using an LP16 commercial infrared desiccator from Mettler. This technique is fully described in the documentation for the instrument supplied by Mettler.
  • [0235]
    The measuring protocol is as follows: about 1 g of the composition is spread onto a metal cup. After introducing this cup into the desiccator, it is subjected to a nominal temperature of 120° C. for an hour. The wet mass of the sample, corresponding to the initial mass, and the dry mass of the sample, corresponding to the mass after exposure to the radiation, are measured using a precision balance.
  • [0236]
    The solids content is calculated in the following manner:
    dry extract=100×(dry mass/wet mass).
  • [0237]
    The particle sizes may be measured by various techniques: mention may be made in particular of light-scattering techniques (dynamic and static), Coulter counter methods, sedimentation rate measurements (related to the size via Stokes' law) and microscopy. These techniques make it possible to measure a particle diameter and, for some of them, a particle size distribution.
  • [0238]
    The sizes and size distributions of the particles in the compositions according to the invention are preferably measured by static light scattering using a commercial granulometer such as the MasterSizer 2000 from Malvern. The data are processed on the basis of the Mie scattering theory. This theory, which is exact for isotropic particles, makes it possible to determine an “effective” particle diameter in the case of non-spherical particles. This theory is described especially in the work by Van de Hulst, H. C., “Light Scattering by Small Particles”, Chapters 9 and 10, Wiley, New York, 1957.
  • [0239]
    The composition is characterized by its mean “effective” diameter by volume D[4.3], defined in the following manner: D [ 4.3 ] = i V i · d i i v i
    in which Vi represents the volume of the particles with an effective diameter di. This parameter is described especially in the technical documentation of the granulometer.
  • [0240]
    The measurements are performed at 25° C. on a dilute particle dispersion, obtained from the composition in the following manner: 1) dilution by a factor of 100 with water, 2) homogenization of the solution, 3) standing of the solution for 18 hours, 4) recovery of the whitish uniform supernatant.
  • [0241]
    The “effective” diameter is obtained by taking a refractive index of 1.33 for water and a mean refractive index of 1.42 for the particles.
  • [0242]
    The invention is illustrated in more detail by the examples described below.
  • EXAMPLE 1
  • [0243]
    This example illustrates the preparation of a polymer forming a dispersion of particles in a carbon-based solvent, the said polymer being obtained by polymerization of methyl acrylate, acrylic acid and the macromonomer corresponding to a polyethylene/polybutylene copolymer (Kraton L-1253).
  • [0244]
    200 g of heptane, 200 g of isododecane, 14 g of methyl acrylate, 10 g of acrylic acid, 16 g of macromonomer of the polyethylene/polybutylene copolymer type containing methacrylate end groups (Kraton L-1253) and 3.2 g of tert-butyl peroxy-2-ethylhexanoate (Trigonox 21S) are loaded into a 1 litre reactor.
  • [0245]
    The reaction mixture is stirred and heated at ambient temperature to 90° C. over 1 hour. After 15 minutes at 90° C., a change is observed in the appearance of the reaction medium, which passes from a transparent appearance to a milky appearance. Heating with stirring is continued for a further 15 minutes, and a mixture consisting of 130 g of methyl acrylate, 30 g of acrylic acid and 2 g of Trigonox 21S is then added dropwise over 1 hour.
  • [0246]
    Next, the mixture is heated for 4 hours at 90° C. and the heptane is then distilled from the reaction medium. The outcome of this distillation operation is a stable dispersion of particles of polymer thus prepared in isododecane.
  • [0247]
    The characteristics of the polymer and of the particles formed by the said polymer are as follows:
  • [0248]
    weight-average molecular mass Mw=175 294
  • [0249]
    number-average molecular mass Mn=28 265
  • [0250]
    polydispersity index (Mw/Mn)=6.2
  • [0251]
    theoretical dry extract: 54.9% in isododecane
  • [0252]
    particle size: 85 nm with polydispersity of 0.04, performed on a Malvern Autosizer Lo-C at 25° C.
  • [0253]
    The grafted polymer comprises 8% by weight of macromonomer relative to the weight of the polymer.
  • [0254]
    The stability of the dispersion obtained is demonstrated by implementing the following stability protocol: 8 ml of dispersion produced are placed in a haemolysis tube and centrifuged at 4000 rpm for 15 minutes using a Jouan C100-S5 centrifuge. After 15 minutes, it is found that there is no phase separation, thereby demonstrating the dispersion is stable.
  • EXAMPLE 2
  • [0255]
    This example illustrates the preparation of a polymer forming a dispersion of particles in a silicone-based solvent, the said polymer being obtained by polymerization of methyl acrylate, acrylic acid and a monomethacryloyloxypropyl polydimethylsiloxane macromonomer having a weight-average molecular weight of 5000, sold under the name MCR-M17 by Gelest Inc.
  • [0256]
    200 g of heptane, 200 g of decamethylcyclopentasiloxane, 26 g of methyl acrylate, 14 g of monomethacryloyloxypropyl polydimethylsiloxane MCR-M17 and 3.2 g of tert-butyl peroxy-2-ethylhexanoate (Trigonox 21S) are loaded into a 1 litre reactor.
  • [0257]
    The reaction mixture is stirred and heated to 90° C. over 1 hour. After 15 minutes at 90° C., a change is observed in the appearance of the reaction medium, which passes from a transparent appearance to a milky appearance. Heating with stirring is continued for a further 15 minutes, and a mixture consisting of 120 g of methyl acrylate, 40 g of acrylic acid and 2 g of Trigonox 21S is then added dropwise over 1 hour. Next, the mixture is heated for 4 hours at 90° C. and the heptane is then distilled from the reaction medium.
  • [0258]
    The outcome of this distillation operation is a stable dispersion of particles of polymer thus prepared in decamethylcyclopentasiloxane.
  • [0259]
    The grafted polymer comprises 7% by weight of macromonomer (and hence of side chains soluble in D5) relative to the weight of the polymer.
  • [0260]
    The characteristics of the polymer and of the particles formed by the said polymer are as follows:
  • [0261]
    dry extract: 50% in decamethylcyclopentasiloxane, performed by thermal balance
  • [0262]
    glass transition: 12° C. by Mettler DSC
  • [0263]
    particle size: 170 nm with polydispersity of 0.04, performed on a Malvern Autosizer Lo-C at 25° C.
  • EXAMPLE 3
  • [0264]
    This example illustrates the preparation of a polymer forming a dispersion of particles in a carbon-based solvent, the said polymer being obtained by polymerization of methyl acrylate, acrylic acid and the macromonomer corresponding to a polyethylene/polybutylene copolymer (Kraton L-1253).
  • [0265]
    200 g of heptane, 200 g of isododecane, 14 g of methyl acrylate, 10 g of acrylic acid, 16 g of macromonomer of the polyethylene/polybutylene copolymer type (Kraton L-1253) and 3.2 g of tert-butyl peroxy-2-ethylhexanoate (Trigonox 21S) are loaded into a 1 litre reactor.
  • [0266]
    The reaction mixture is stirred and heated at ambient temperature to 90° C. over 1 hour. After 15 minutes at 90° C., a change is observed in the appearance of the reaction medium, which passes from a transparent appearance to a milky appearance. Heating with stirring is continued for a further 15 minutes, and a mixture consisting of 70 g of methyl acrylate, 90 g of acrylic acid and 2 g of Trigonox 21S is then added dropwise over 1 hour.
  • [0267]
    Next, the mixture is heated for 4 hours at 90° C. and the heptane is then distilled from the reaction medium. The outcome of this distillation operation is a stable dispersion of particles of polymer thus prepared in isododecane.
  • [0268]
    The characteristics of the polymer and of the particles formed by the said polymer are as follows:
  • [0269]
    weight-average molecular mass Mw=not characterizable by GPC
  • [0270]
    number-average molecular mass Mn=not characterizable by GPC
  • [0271]
    polydispersity index (Mw/Mn)=not characterizable by GPC
  • [0272]
    theoretical dry extract: 53.6% in isododecane
  • [0273]
    particle size: not measured.
  • [0274]
    The grafted polymer comprises 8% by weight of macromonomer relative to the weight of the polymer.
  • [0275]
    After the stability protocol has been implemented in accordance with Example 1, the dispersion obtained is found to be stable.
  • EXAMPLE 4
  • [0276]
    This example illustrates the preparation of a polymer forming a dispersion of particles in a carbon-based solvent, the said polymer being obtained by polymerization of methyl acrylate, acrylic acid and the macromonomer corresponding to a polyethylene/polybutylene copolymer with methacrylate end groups (Kraton L-1253).
  • [0277]
    200 g of heptane, 200 g of isododecane, 28 g of methyl acrylate, 12 g of macromonomer of the polyethylene/polybutylene copolymer type with methacrylate end groups (Kraton L-1253) and 3.2 g of tert-butyl peroxy-2-ethylhexanoate (Trigonox 21S) are loaded into a 1 litre reactor.
  • [0278]
    The reaction mixture is stirred and heated at ambient temperature to 90° C. over 1 hour. After 15 minutes at 90° C., a change is observed in the appearance of the reaction medium, which passes from a transparent appearance to a milky appearance. Heating with stirring is continued for a further 15 minutes, and a mixture consisting of 150 g of methyl acrylate, 10 g of acrylic acid and 2 g of Trigonox 21S is then added dropwise over 1 hour.
  • [0279]
    Next, the mixture is heated for 4 hours at 90° C. and the heptane is then distilled from the reaction medium. The outcome of this distillation operation is a stable dispersion of particles of polymer thus prepared in isododecane.
  • [0280]
    The grafted polymer comprises 6% by weight of macromonomer relative to the weight of the polymer.
  • [0281]
    The characteristics of the polymer and of the particles formed by the said polymer are as follows:
  • [0282]
    weight-average molecular mass Mw=143 639
  • [0283]
    number-average molecular mass Mn=23 965
  • [0284]
    polydispersity index (Mw/Mn)=5.99
  • [0285]
    theoretical dry extract: 51.3% in isododecane
  • [0286]
    particle size: 48 nm with polydispersity of 0.04, performed on a Malvern Autosizer Lo-C at 25° C.
  • [0287]
    After the stability protocol has been implemented in accordance with Example 1, the dispersion obtained is found to be stable.
  • EXAMPLE 5
  • [0288]
    This example illustrates the preparation of a polymer forming a dispersion of particles in a silicone oil, the said polymer being obtained by polymerization of methyl acrylate and a monomethacryloyloxypropyl polydimethylsiloxane macromonomer having a weight-average molecular weight of 5000, sold under the name MCR-M17 by Gelest Inc.
  • [0289]
    200 g of heptane, 200 g of decamethylcyclopentasiloxane, 30 g of methyl acrylate, 10 g of monomethacryloyloxypropyl polydimethylsiloxane MCR-M17 and 3.2 g of tert-butyl peroxy-2-ethylhexanoate (Trigonox 21S) are loaded into a 1 litre reactor.
  • [0290]
    The reaction mixture is stirred and heated to 90° C. over 1 hour. After 15 minutes at 90° C., a change is observed in the appearance of the reaction medium, which passes from a transparent appearance to a milky appearance. Heating with stirring is continued for a further 15 minutes, and a mixture consisting of 160 g of methyl acrylate and 2 g of Trigonox 21S is then added dropwise over 1 hour. Next, the mixture is heated for 4 hours at 90° C. and the heptane is then distilled from the reaction medium.
  • [0291]
    The outcome of this distillation operation is a stable dispersion of particles of polymer thus prepared in decamethylcyclopentasiloxane (D5).
  • [0292]
    The grafted polymer comprises 5% by weight of macromonomer (and hence of side chains soluble in D5) relative to the weight of the polymer.
  • [0293]
    The characteristics of the polymer and of the particles formed by the said polymer are as follows:
  • [0294]
    weight-average molecular mass Mw=102 347
  • [0295]
    number-average molecular mass Mn=28 283
  • [0296]
    polydispersity index (Mw/Mn)=3.62
  • [0297]
    dry extract: 51.4% in D5, performed by thermal balance
  • [0298]
    glass transition: 12° C. by Mettler DSC
  • [0299]
    particle size: 160 nm with polydispersity of 0.04, performed on a Malvern Autosizer Lo-C at 25° C.
  • [0300]
    After the stability protocol has been implemented in accordance with Example 1, the dispersion is found to be stable.
  • [0301]
    The polymers of Examples 1 to 5 comprise the following monomers, their amounts being indicated as a percentage by weight of the polymer:
    Polymer Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5
    Methyl acrylate 72 73 42 89  95 
    Acrylic acid 20 20 50 5 0
    Carbon-based  8  8 6
    macromonomer
    Silicone-based  7 5
    macromonomer
  • EXAMPLES 6 TO 10
  • [0302]
    5 foundations were prepared, having the following compositions (the amounts are indicated as a percentage relative to the total weight of the composition):
    Examples
    6 7 8 9 10
    Abil EM 97 1.8 1.8 1.8 1.8 1.8
    Inwitor 780 K 0.6 0.6 0.6 0.6 0.6
    Isododecane 20.38 22.10 20.28 20.11 22.10
    D5 10 7.9 10 10 7.95
    Grafted polymer Ex. 1 Ex. 2 Ex. 3 Ex. 4 Ex. 5
    dispersion 3.82 4.20 3.92 4.09 4.15
    Pigments 10 10 10 10 10
    Silicone gum 3 3 3 3 3
    Nylon powder 8 8 8 8 8
    Water 41.4 41.4 41.4 41.4 41.4
    Preservative 0.3 0.3 0.3 0.3 0.3
    Magnesium sulfate 0.7 0.7 0.7 0.7 0.7

    Each composition contains 2.1% by weight of active grafted polymer substance.
    Ingredients Used:
    ABIL EM 97: α,ω-substituted, ethoxylated propoxylated silicone/cyclomethicone (85/15) blend, sold by the Goldschmidt Company
    Inwitor 780 K: mono- and diglycerides of isostearic acid esterified with succinic acid sold by the Sasol Company
    D5: cyclopentasiloxane
    Silicone gum: blend of polydiphenyl dimethylsiloxane and cyclopentasiloxane (15/85) sold under the name Mirasil C (DPDM by Rhodia)
    Nylon powder sold under the name Orgasol® 2002 extra D NAT COS by Atofina
    the 10% of pigments comprise:
    1.43% of yellow iron oxides coated with triisopropyl isostearoyl titanate (BYO-I 2 from Kobo)
    0.46% of brown iron oxides coated with triisopropyl isostearoyl titanate (BRO-I 2 from Kobo)
    0.22% of black iron oxides coated with triisopropyl isostearoyl titanate (BBO-I 2 from Kobo)
    7.89% of titanium dioxide coated with triisopropyl isostearoyl titanate (BTD-401 from Kobo)
  • [0303]
    Thereafter the transfer index of each composition was measured in the presence of sebum in accordance with the measurement protocol described above. The results obtained were as follows:
    Example
    6 7 8 9 10
    Transfer index 0.5 0.5 0.5 3.5 3.5
  • [0304]
    It is found that the compositions have a transfer index in the presence of sebum of less than 4.
  • [0305]
    Furthermore, the compositions of Examples 6 to 8 have a better transfer resistance in the presence of sebum than the compositions of Examples 9 and 10. It is therefore observed that the presence of acrylic acid in the grafted polymer promotes the non-transfer property of the deposit obtained with the composition.

Claims (120)

  1. 1-87. (canceled)
  2. 88. A cosmetic makeup or skincare composition comprising a dispersion of particles of at least one grafted ethylenic polymer in a liquid fatty phase, wherein when the composition forms a deposit the deposit has a transfer index, in the presence of sebum, of less than 4.
  3. 89. The composition of claim 88, wherein the deposit has a transfer index, in the presence of sebum, or less than or equal to 3.
  4. 90. The composition of claim 89, wherein the deposit has a transfer index, in the presence of sebum, or less than or equal to 2.
  5. 91. The composition of claim 90, wherein the deposit has a transfer index, in the presence of sebum, of less than or equal to 1.5.
  6. 92. The composition of claim 91, wherein the deposit has a transfer index, in the presence of sebum, or less than or equal to 1.
  7. 93. The composition of claim 88, wherein the at least one grafted ethylenic polymer comprises an ethylenic skeleton and side chains that are covalently bound to the skeleton, wherein the skeleton is insoluble in the liquid fatty phase and the side chains are soluble in the liquid fatty phase.
  8. 94. The composition of claim 88, wherein the at least one grafted ethylenic polymer is a grafted acrylic polymer.
  9. 95. The composition of claim 1, wherein the at least one ethylenic polymer is dispersed in the absence of additional stabilizer on the surface of the particles of the grafted polymer.
  10. 96. The composition of claim 93, wherein the at least one grafted ethylenic polymer in the dispersion is chosen from grafted acrylic polymers that are obtainable by free-radical polymerization, in an organic polymerization medium, of:
    at least one acrylic monomer and, optionally, at least one additional, non-acrylic, vinyl monomer, to form the skeleton; and
    at least one macromonomer comprising at least one polymerizable end group for forming the side chains, wherein said macromonomer has a weight average molecular mass of greater than or equal to 20, and is present in the ethylenic grafted polymer in an amount ranging from 0.05% to 20% by weight, relative to the weight of the polymer.
  11. 97. The composition of claim 96, wherein the at least one acrylic monomer is chosen from the following monomers and their salts:
    (i) (meth)acrylates of the formula:
    Figure US20060251601A1-20061109-C00005
    in which:
    R1 is chosen from a hydrogen atom and methyl groups; and
    R2 is a group chosen from:
    linear and branched alkyl groups comprising from 1 to 6 carbon atoms, wherein said linear and branched alkyl groups: a) optionally comprise a chain having at least one heteroatom chosen from O, N, or S; and/or b) optionally comprise at least substituents chosen from —OH groups, halogen atoms, NR′R″ groups, wherein R′ and R″, which may be identical or different, are chosen from linear and branched C1-C4 alkyl groups; and/or c) optionally substituted with at least one polyoxyalkylene group that comprises from 5 to 30 repeating oxyalkylene units;
    cyclic alkyl groups that comprise from 3 to 6 carbon atoms, wherein said cyclic alkyl groups: a) optionally comprise a chain having at least one heteroatoms chosen from O, N, and S; and/or b) optionally comprise at least one substituent chosen from OH groups, halogen atoms, and NR′R″ groups, wherein R′ and R″ may be identical or different and are chosen from linear and branched C1-C4 alkyl groups; and/or c) optionally substituted with at least one polyoxyalkylene group that comprises from 5 to 30 repeating oxyalkylene units;
    (ii) (meth)acrylamides of the formula:
    Figure US20060251601A1-20061109-C00006
    in which:
    R3 is chosen from a hydrogen atom and methyl groups;
    R4 and R5, which may be identical or different, are chosen from hydrogen atoms and linear and branched alkyl groups comprising from 1 to 6 carbon atoms, wherein said linear and branched alkyl groups optionally comprise at least one substituent chosen from —OH groups, halogen atoms, and NR′R″ groups, wherein R′ and R″, which may be identical or different, are chosen from linear and branched C1-C4 alkyls; or alternatively, R4 is a hydrogen atom and R5 is a 1,1-dimethyl-3-oxobutyl group;
    (iii) (meth)acrylic monomers comprising at least one carboxylic, phosphoric, or sulfonic acid functional group.
  12. 98. The composition of claim 97, wherein said at least one carboxylic, phosphoric, or sulfonic acid functional group is chosen from acrylic acid, methacrylic acid, and acrylamidopropanesulfonic acid.
  13. 99. The composition of claim 96, wherein the at least one acrylic monomer is chosen from methyl (meth)acrylate, ethyl (meth)acrylate, propyl (meth)acrylate, butyl (meth)acrylate, isobutyl (meth)acrylate, methoxyethyl (meth)acrylate, ethoxyethyl (meth)acrylate, trifluoroethyl (meth)acrylate, dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, dimethylaminopropylmethacrylamide, (meth)acrylic acid, and the salts thereof.
  14. 100. The composition of claim 99, wherein the at least one acrylic monomer is chosen from methyl acrylate, methoxyethyl acrylate, methyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, (meth)acrylic acid, and dimethylaminoethyl (meth)acrylate monomers.
  15. 101. The composition of claim 96, wherein the at least one grafted ethylenic polymer comprises methacrylic acid.
  16. 102. The composition of claim 97, wherein the at least one acrylic monomer comprises at least (meth)acrylic acid and at least one monomer chosen from groups (i) and (ii).
  17. 103. The composition of claim 96, wherein the at least one acrylic monomer comprises at least (meth)acrylic acid and at least one monomer selected from C1-C3 alkyl (meth)acrylates.
  18. 104. The composition of claim 101, wherein the (meth)acrylic acid is present in the composition in an amount greater than or equal to 5% by weight, relative to the total weight of the grafted ethylenic polymer.
  19. 105. The composition of claim 104, wherein the (meth)acrylic acid is present in the composition in an amount ranging from 15% to 60% by weight, relative to the total weight of the grafted ethylenic polymer.
  20. 106. The composition of claim 96, wherein the grafted acrylic polymer does not comprise an additional, non-acrylic, vinyl monomer.
  21. 107. The composition of claim 96, wherein the at least one grafted acrylic polymer is chosen from those obtained by free-radical polymerization of said at least one acrylic monomer, and at least one additional, non-acrylic, vinyl monomer, and said macromonomer.
  22. 108. The composition of claim 107, wherein the at least one non-acrylic, additional vinyl monomer is chosen from:
    vinyl esters of the formula: R6—COO—CH═CH2
    wherein R6 is chosen from linear and branched alkyl groups comprising from 1 to 6 carbon atoms, cyclic alkyl groups comprising from 3 to 6 carbon atoms, and/or an aromatic groups;
    non-acrylic vinyl monomers comprising at least one group chosen from carboxylic, phosphoric, and sulfonic acid functional group; and
    non-acrylic vinyl monomers comprising at least one tertiary amine functional group.
  23. 109. The composition of claim 107, wherein said aromatic group is chosen from benzenes, anthracenes, or naphthalenes.
  24. 110. The composition of claim 107, wherein said at least one non-acrylic vinyl monomers comprising at least one carboxylic, phosphoric, or sulfonic acid functional group are chosen from crotonic acid, maleic anhydride, itaconic acid, fumaric acid, maleic acid, styrenesulfonic acid, vinylbenzoic acid, vinyl phosphoric acid, and salts thereof.
  25. 110. The composition of claim 107, wherein said at least one non-acrylic vinyl monomers comprising at least one tertiary amine functionality is chosen from 2-vinylpyridine or 4-vinylpyridine.
  26. 111. The composition of claim 96, wherein said acrylic monomers are present in an amount ranging from 50% to 100% by weight, relative to the total weight of the mixture of acrylic monomers and optional non-acrylic vinyl monomers.
  27. 112. The composition of claim 111, wherein said acrylic monomers are present in an amount ranging from 70% to 100% by weight, relative to the total weight of the mixture of acrylic monomers and optional non-acrylic vinyl monomers.
  28. 113. The composition of claim 96, wherein said at least one macromonomer comprises at least one polymerizable end group chosen from vinyl groups and (meth)acrylate groups.
  29. 114. The composition of claim 113, wherein the polymerizable end group is a (meth)acrylate group.
  30. 115. The composition of claim 96, wherein the at least one macromonomer has a weight average molecular mass of greater than or equal to 300.
  31. 116. The composition of claim 96, wherein the at least one macromonomer has a weight average molecular mass of greater than or equal to 600.
  32. 117. The composition of claim 96, wherein the at least one macromonomer has a weight average molecular mass (Mw) ranging from 200 to 100,000.
  33. 118. The composition of claim 117, wherein the at least one macromonomer has a weight average molecular mass (Mw) ranging from 800 to 6,000.
  34. 119. The composition of claim 96, wherein the at least one macromonomer is present in the acrylic polymer in an amount ranging from 0.1% to 15% by weight, relative to the total weight of the acrylic polymer.
  35. 120. The composition of claim 96, wherein the at least one macromonomer is present in the grafted ethylenic polymer in an amount ranging from 0.3% to 8% by weight, relative to the total weight of the acrylic polymer.
  36. 121. The composition of claim 88, wherein the liquid fatty phase comprises at least one liquid organic compound chosen from:
    liquid organic compounds having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2; and
    liquid monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2.
  37. 122. The composition of claim 121, wherein the at least one liquid organic compound is a non-volatile oil.
  38. 123. The composition of claim 88, wherein the liquid fatty phase is a non-silicone based liquid fatty phase.
  39. 124. The composition of claim 123, wherein the non-silicone based liquid fatty phase comprises at least 50% by weight of at least one non-silicone based organic liquid compound chosen from:
    non-silicone based organic liquid compounds having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2; and
    liquid monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2.
  40. 125. The composition of claim 123, wherein the non-silicone based liquid fatty phase comprises less than 50% by weight of silicone based organic compounds having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2.
  41. 126. The composition of claim 123, wherein the non-silicone based liquid fatty phase does not comprise silicone based liquid organic compounds.
  42. 127. The composition of claim 96, wherein the at least one macromonomer is carbon-based.
  43. 128. The composition of claim 127, wherein the at least one carbon-based macromonomer is chosen from:
    (i) homopolymers and copolymers of linear and branched C8-C22 alkyl acrylate and C8-C22 (meth)acrylate groups, wherein said alkyl acrylate and (meth)acrylate groups comprise a polymerizable end group chosen from vinyl and (meth)acrylate groups; and
    (ii) polyolefins comprising a polymerizable ethylenically unsaturated end group.
  44. 129. The composition of claim 128, wherein the at least one carbon-based macromonomer is chosen from:
    (i) poly(2-ethylhexyl acrylate) macromonomers comprising a mono (meth)acrylate end group; poly(dodecyl acrylate) macromonomers comprising a mono (meth)acrylate end group; poly(dodecyl (meth)acrylate) macromonomers; poly (stearyl acrylate) macromonomers comprising a mono (meth)acrylate end group; and poly(stearyl (meth)acrylate) macromonomers comprising a mono (meth|)acrylate end group; and
    (ii) polyethylene macromonomers, polypropylene macromonomers, macromonomers of polyethylene/polypropylene copolymer, macromonomers of polyethylene/polybutylene copolymer, polyisobutylene macromonomers, polybutadiene macromonomers, polyisoprene macromonomers, and poly(ethylene/butylene) polyisoprene macromonomers, wherein these macromonomers have a (meth)acrylate end group.
  45. 130. The composition of claim 129, wherein the at least one carbon-based macromonomer is chosen from:
    (i) poly(2-ethylhexyl acrylate) macromonomers comprising a mono(meth)acrylate end group, -poly(dodecyl acrylate) macromonomers comprising a mono(meth)acrylate end group; and
    (ii) poly(ethylene/butylene) (meth)acrylate.
  46. 131. The composition of claim 127, wherein the grafted ethylenic polymer is chosen from polymers obtained by the polymerization of:
    (i) methyl acrylate monomers and a polyethylene/polybutylene macromonomer comprising a (meth)acrylate end group;
    (ii) methoxyethyl acrylate monomers and a polyethylene/polybutylene macromonomer comprising a (meth)acrylate end group;
    (iii) methyl acrylate/methyl (meth)acrylate monomers and a polyethylene/polybutylene macromonomer comprising a (meth)acrylate end group;
    (iv) methyl acrylate/acrylic acid monomers and a polyethylene/polybutylene macromonomer comprising a (meth)acrylate end group; and
    (v) methyl acrylate/2-hydroxyethyl (meth)acrylate monomers and a polyethylene/polybutylene macromonomer comprising a (meth)acrylate end group.
  47. 132. The composition of claim 131, wherein said polymerization is carried out in at least one solvent chosen from isodecane, isononyl isononanoate, octyl dodecanol, diisostearyl malate, and C12-C15 alkyl benzoate.
  48. 133. The composition of claim 132, wherein said polymerization is carried out in isodecane.
  49. 134. The composition of claim 96, wherein the at least one grafted ethylenic polymer is a non-silicone based grafted ethylenic polymer.
  50. 135. The composition of claim 134, wherein the at least one non-silicone based grafted ethylenic polymer comprises at least one carbon-based macromonomer that optionally comprises at least one silicone-based macromonomer in an amount less than or equal to 7% by weight, relative to the total weight of the grafted non-silicone based grafted ethylenic polymer.
  51. 136. The composition of claim 96, wherein the at least one macromonomer is silicone based and is free from carbon based macromonomer.
  52. 137. The composition of claim 88, wherein the liquid fatty phase is a silicone-based liquid fatty phase.
  53. 138. The composition of claim 137, wherein the silicone-based liquid fatty phase comprises, in an amount greater than or equal to 50% by weight, at least one silicone-based organic liquid compound chosen from silicone-based organic liquid compounds having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2.
  54. 139. The composition of claim 138, wherein the at least one silicone-based organic liquid compound comprises at least one volatile silicone oil.
  55. 140. The composition of claim 139, wherein the at least one volatile silicone oil is chosen from octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltriosiloxane, oxtamethyltrisiloxane, and decamethyltetrasiloxane.
  56. 141. The composition of claim 138, wherein the at least one silicone-based organic liquid compound comprises at least one non-volatile silicone oil.
  57. 142. The composition of claim 141, wherein the at least one non-volatile silicone oil is chosen from non-volatile polydialkylsiloxanes; polydimethyl siloxanes comprising at least one group chosen from alkyl, alkoxy, and phenyl groups, said groups being pendent or at the end of a silicone chain; phenyl silicones; polysiloxanes modified with fatty acids, fatty alcohols, or polyoxyalkylenes; amino polysiloxanes; polysiloxanes comprising hydroxyl groups; and fluoro polysiloxanes comprising at least one fluorinated group that is pendent or at the end of a silicone chain, said at least one fluorinated group comprising 1 to 12 carbon atoms, wherein all or some of the hydrogen atoms off of said carbon atoms are substituted with fluorine atoms.
  58. 143. The composition of claim 137, wherein said fatty phase comprises, in an amount of less than 50% by weight, at least one non-silicone-based liquid organic compound.
  59. 144. The composition of claim 143, wherein the at least one non-silicone-based liquid organic compound is chosen from non-silicone-based liquid organic compounds having a total solubility parameter according to the Hansen solubility space of less than 18 (MPa)1/2; and liquid monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2.
  60. 145. The composition of claim 144, wherein the at least one non-silicone-based organic liquid compound having a total solubility parameter according to the Hansen solubility space of less than or equal to 18 (MPa)1/2 is chosen from carbon-based oils, hydrocarbon-based oils; fluoro oils; optionally volatile, linear, branched, and/or cyclic alkanes; esters; ketones; and ethers.
  61. 146. The composition of claim 145, wherein said esters contain at least 6 carbon atoms.
  62. 147. The composition of claim 145, wherein said ketones contain at least 6 carbon atoms.
  63. 148. The composition of claim 145, wherein said ethers contain at least 6 carbon atoms.
  64. 149. The composition of claim 144, wherein the monoalcohols having a total solubility parameter according to the Hansen solubility space of less than or equal to 20 (MPa)1/2 are chosen from aliphatic fatty monoalcohols having from 6 to 30 carbon atoms and an unsubstituted hydrocarbon chain.
  65. 150. The composition of claim 149, wherein said aliphatic fatty monoalcohols are chosen from oleyl alcohol, decanol, and linoleyl alcohol.
  66. 151. The composition of claim 88, wherein the liquid fatty phase comprises at least one non-silicone-based volatile oil.
  67. 152. The composition of claim 151, wherein the at least one non-silicone based volatile oil is chosen from isododecane, isodecane, and isohexadecane.
  68. 153. The composition of claim 137, wherein the at least one silicone based liquid fatty phase does not comprise non-silicone based liquid organic compounds.
  69. 154. The composition of claim 122, wherein said at least one non-volatile oil is present in the composition in an amount ranging from 0.1% to 80% by weight, relative to the total weight of the composition.
  70. 155. The composition of claim 154, wherein said at least one non-volatile oil is present in the composition in an amount ranging from 3% to 50% by weight, relative to the total weight of the composition.
  71. 156. The composition of claim 88, wherein the liquid fatty phase comprises from 1% to 90% by weight of at least one volatile oil, relative to the total weight of the composition.
  72. 157. The composition of claim 156, wherein the at least one volatile oil is present in the composition in an amount ranging from 5% to 70% by weight.
  73. 158. The composition of claim 137, wherein the at least one macromonomer is a silicone-based macromonomer.
  74. 159. The composition of claim 158, wherein the at least one silicone-based macromonomer is an organopolysiloxane macromonomer.
  75. 160. The composition of claim 159, wherein said organopolysiloxane monomer is a polydimethylsiloxane monomer.
  76. 161. The composition of claim 158, wherein the at least one silicone-based macromonomer is chosen from polydimethylsiloxanes having a mono(meth)acrylate end group.
  77. 162. The composition of claim 161, wherein said polydimethylsiloxane is chosen from monomethylacryloyloxypropyl polydimethylsiloxanes.
  78. 163. The composition of claim 158, wherein the at least one silicone-based macromonomer is chosen from macromonomers of the formula:
    Figure US20060251601A1-20061109-C00007
    in which:
    R8 is chosen from a hydrogen atom and methyl groups;
    R9 is a divalent hydrocarbon-based group that comprises from 1 to 10 carbon atoms and optionally comprises one or two ether bonds;
    R10 is an alkyl group comprising from 1 to 10 carbon atoms; and
    n is an integer ranging from 1 to 300.
  79. 164. The composition of claim 163, wherein R10 is an alkyl group having from 2 to 8 carbon atoms.
  80. 165. The composition of claim 163, wherein n ranges from 5 to 100.
  81. 166. The composition of claim 94, wherein the at least one grafted acrylic polymer is chosen from polymers obtained by free radical polymerization in a polymerization medium of:
    at least one first acrylic monomer chosen from at least one C1-C3 alkyl (meth)acrylates;
    at least one silicone-based macromonomer;
    at least one optional additional acrylic monomer chosen from acrylic acid, methacrylic acid, and alkyl (meth)acrylates of the formula:
    Figure US20060251601A1-20061109-C00008
    in which:
    R′1 is chosen from a hydrogen atom and methyl groups
    R′2 is chosen from:
    linear and branched alkyl groups comprising from 1 to 6 carbon atoms, said alkyl groups having a chain that comprises at least one oxygen atom and/or substituent chosen from OH, halogen atoms, and —NR′R″ groups, where R′ and R″, which may be identical or different, are chosen from linear and branched C1 to C6 alkyl groups;
    cyclic alkyl groups comprising from 3 to 6 carbon atoms, wherein said cyclic group may optionally have a chain comprising at least one oxygen atom and/or substituent chosen from —OH groups and halogen atoms;
    and salts thereof.
  82. 167. The composition of claim 166, wherein R12 denotes a methoxyethyl, ethoxyethyl, trifluoroethyl, 2-hydroxyethyl, 2-hydroxypropyl, dimethylaminoethyl, diethylaminoethyl, or dimethylaminopropyl group.
  83. 168. The composition of claim 166, wherein the at least one first acrylic monomer is chosen from methyl (meth)acrylate, ethyl (meth)acrylate, n-propyl (meth)acrylate, isopropyl (meth)acrylate, and mixtures thereof.
  84. 169. The composition of claim 166, wherein the at least one first acrylic monomer is chosen from methyl acrylate, methyl (meth)acrylate, and ethyl (meth)acrylate.
  85. 170. The composition of claim 166, wherein said at least one additional acrylic monomers is chosen from (meth)acrylic acid, methoxyethyl (meth)acrylate, ethoxyethyl (meth)acrylate), trifluoroethyl (meth)acrylate, dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, and salts thereof.
  86. 171. The composition of claim 166, wherein the at least one additional acrylic monomer is chosen from acrylic acid and methacrylic acid.
  87. 172. The composition of claim 88, wherein the at least one grafted ethylenic polymer is chosen from polymers obtained by polymerizing:
    methyl acrylate and at least one monomethylacryloyloxypropyl polydimethylsiloxane macromonomer having a weight average molecular weight ranging from 800 to 6000; and
    methyl acrylate, acrylic acid, and at least one monomethacryloyloxypropyl polydimethylsiloxane macromonomer having a weight average molecular weight ranging from 800 to 6000.
  88. 173. The composition of claim 172, wherein said at least one monomethacryloyloxypropyl polydimethylsiloxane macromonomer having a weight average molecular weight ranging from 800 to 6000 is chosen from decamethylcyclopentasiloxane and phenyltrimethicone.
  89. 174. The composition of claim 172, wherein the at least one grafted ethylenic polymer is a grafted silicone-based polymer.
  90. 175. The composition of claim 174, wherein the at least one grafted silicone-based polymer optionally comprises at least one carbon-based macromonomer, in an amount of less than or equal to 7% by weight, relative to the total weight of the grafted silicone-based polymer.
  91. 176. The composition of claim 175, wherein the at least one grafted silicone-based polymer does not comprise carbon-based macromonomer.
  92. 177. The composition of claim 88, wherein the at least one grafted ethylenic polymer has a weight average molecular mass (Mw) ranging from 10,000 to 300,000.
  93. 178. The composition of claim 177, wherein the at least one grafted ethylenic polymer has a Mw ranging from 25,000 to 150,000.
  94. 179. The composition of claim 88, wherein the particles of the at least one grafted ethylenic polymer have an average size ranging from 10 nm to 400 nm.
  95. 180. The composition of claim 179, wherein the particles of the at least one grafted ethylenic polymer have an average size ranging from 20 nm to 200 nm.
  96. 181. The composition of claim 88, wherein the at least one grafted ethylenic polymer is a film forming polymer.
  97. 182. The composition of claim 88, wherein the at least one grafted ethylenic polymer is present in the composition in an amount ranging from 0.5% to 45% by weight, relative to the total weight of the composition.
  98. 183. The composition of claim 182, wherein the at least one grafted ethylenic polymer is present in the composition in an amount ranging from 2% to 25% by weight, relative to the total weight of the composition.
  99. 184. The composition of claim 88, further comprising at least one colorant.
  100. 185. The composition of claim 184, wherein said at least one colorant is chosen from pulverulent colorants.
  101. 186. The composition of claim 184, wherein said at least one pulverulent colorant is chosen from pigments and nacres.
  102. 187. The composition of claim 88, further comprising at least one cosmetic ingredient chosen from vitamins, moisturizers, emollients, free-radical scavengers, thickeners, trace elements, softeners, sequesterants, perfumes, alkalifying and acidifying agents, preservatives, sunscreens, surfactants, antioxidants, gums, waxes, and propellants.
  103. 188. The composition of claim 88, wherein the composition is in a form chosen from a suspension, dispersion, solution, gel, emulsion, cream, paste, mousse, vesicle dispersion, a two phase lotion, a multi-phase lotion, a spray, and a powder.
  104. 189. The composition of claim 188, wherein said emulsion is chosen from an oil in water (O/W) emulsion, a water in oil (W/O) emulsion, a water-oil-water emulsion, a polyol-water-oil emulsion, and an oil-water-oil emulsion.
  105. 190. The composition of claim 188, wherein said vesicle dispersion is chosen from dispersions of ionic and non-ionic lipids.
  106. 191. The composition of claim 88, wherein the composition is anhydrous.
  107. 192. The composition of claim 88, wherein the composition is a skin makeup composition.
  108. 193. A foundation composition comprising a dispersion of particles of at least one grafted ethylenic polymer in a liquid fatty phase, and at least one colorant, wherein when the forms a deposit, the deposit has a transfer index, in the presence of sebum, of less than 4.
  109. 194. The foundation composition of claim 193, wherein said at least one colorant is chosen from fillers with an optical effect.
  110. 195. The foundation composition of claim 194, wherein said at least one filler is chosen from pigments and nacres.
  111. 196. A cosmetic assembly comprising:
    a) a container having at least one compartment, said container being closed by a closing member; and
    b) at least one composition comprised within said at least one compartment, said at least one composition comprising a dispersion of particles of at least one grafted ethylenic polymer in a liquid fatty phase, wherein when the composition forms a deposit, the deposit has a transfer index, in the presence of sebum, of less than 4.
  112. 197. The cosmetic assembly of claim 196, wherein the container is formed at least partially of at least one thermoplastic material.
  113. 198. The cosmetic assembly of claim 196, wherein the container is formed at least partially of at least one non-thermoplastic material.
  114. 199. The cosmetic assembly of claim 198, wherein said at least one non-thermoplastic material is a metal or glass.
  115. 200. The cosmetic assembly of claim 196, wherein the closing member is coupled to the container by at least one screw.
  116. 201. The cosmetic assembly of claim 196, wherein the closing member is coupled to the container without screws.
  117. 202. The cosmetic assembly of claim 201, wherein the closing member is coupled to the container via snap-fastening, adhesive bonding, or welding.
  118. 203. The cosmetic assembly of claim 196, wherein the at least one composition is stored within the at least one compartment at substantially atmospheric pressure.
  119. 204. The cosmetic assembly of claim 196, wherein the at least one composition is stored within the at least one compartment at above atmospheric pressure.
  120. 205. A process for making up the skin, comprising:
    applying to the skin a composition comprising a dispersion of particles of at least one grafted ethylenic polymer in a liquid fatty phase, wherein the composition forms a deposit on the skin, such that, in the presence of sebum, the deposit exhibits a transfer index of less than 4.
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FR0215737A FR2848558B1 (en) 2002-12-12 2002-12-12 acrylic polymer, said dispersion stable polymer in a nonaqueous organic medium and composition comprising said dispersion
FR02/15737 2002-12-12
FR02/15739 2002-12-12
FR0215738A FR2848559B1 (en) 2002-12-12 2002-12-12 acrylic polymer, said dispersion stable polymer in a nonaqueous organic medium and non-silicone composition comprising said dispersion.
FR0215739A FR2848560B1 (en) 2002-12-12 2002-12-12 acrylic polymer, said dispersion stable polymer in a nonaqueous organic medium and silicone composition comprising said dispersion.
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