Abstract: The invention relates to a cosmetic process for caring for or making up keratin materials, comprising the topical application to the keratin materials of a cosmetic composition comprising a phosphonic polymer derived from the polymerization of: (a) 45% to 95% by weight of ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of vinylphosphonic acid monomer; (c) 0 to 50% by weight of additional monomer chosen from linear or branched C1C6 alkyl (meth)acrylates, C6-C12 cycloalkyl (meth)acrylates, and polydimethylsiloxanes bearing a mono(meth)acryloyloxy end group, optionally combined with an additional compound chosen from polyamine compounds bearing several primary amine and/or secondary amine groups, aminosilanes, salts of divalent or trivalent metal ions, clays and metal oxides. The process makes it possible to obtain a film-forming deposit that has good resistance to water, to oil and to sebum. The film is also non-tacky and transfer-resistant.

Abstract: The invention relates to a cosmetic process for treating keratin materials, comprising: either the sequential application to the keratin materials of a composition comprising a maleic anhydride ethylenic polymer and of an amine compound chosen from polyamine compounds bearing several primary amine and/or secondary amine groups and amino alkoxysilanes, or the topical application to the keratin materials of a composition derived from the mixing of a composition comprising a maleic anhydride acrylic polymer and of an amine compound chosen from amino alkoxysilanes; the ethylenic polymer being derived from the polymerization of: (a) 45% to 95% by weight, relative to the total weight of monomers, of an ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of maleic anhydride; (c) 0 to 50% by weight of additional monomer; the compositions used being anhydrous when the amine compound is an amino alkoxysilane.

Abstract: The invention relates to a copolymer resulting from the polymerization of: (i) 70% to 95% by weight, of the total weight of the monomers, of isobornyl (meth)acrylate; (ii) 1% to 30% by weight of vinylphosphonic acid monomer; (iii) 0 to 20% by weight of an additional monomer. The invention also relates to a cosmetic composition comprising the copolymer and to a cosmetic process for caring for or making up keratin materials, comprising the topical application of the composition to the keratin materials. It also relates to the use of the copolymer as a skin-tensioning agent.

Abstract: Process for treating keratin fibres with an ethylenicpolymer bearing a maleic anhydride group and a polyol The invention relates to a cosmetic process for treating keratin fibres, comprising the application to the keratin fibres of a mixture of a maleic anhydride ethylenic polymer, a liposoluble polyol and an amine catalyst; said maleic anhydride ethylenic polymer being obtained by polymerization of: (a) 25% to 95% by weight, relative to the total weight of monomers, of an ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of maleic anhydride; (c) 0% to 50% by weight of additional (meth)acrylate monomer; and a step of heating the keratin fibres to a temperature ranging from 90° C. to 250° C. The invention also relates to the crosslinked polymer obtained by reacting said ethylenic polymer with said liposoluble polyol. The treated keratin fibres have good water-resistant fixing properties.

Abstract: The invention relates to a copolymer resulting from the polymerization of: (a) 50% to 90% by weight, of the total weight of monomers, of isobornyl (meth)acrylate, (b) 1% to 50% by weight of maleic anhydride, (c) 0% to 49% by weight of additional (meth)acrylate monomer chosen from: (i) saturated or unsaturated and linear or branched C1-C20 alkyl (meth)acrylates, the alkyl being optionally interrupted by one or more nonadjacent heteroatoms chosen from O or S or by an NR group, R being a C1-C4 alkyl group, optionally substituted by a phenyl or furfuryl group; (ii) saturated C4-C8 cycloalkyl (meth)acrylates, the cycloalkyl being optionally interrupted by O or NH. The invention also relates to a composition comprising said copolymer in a physiologically acceptable medium. The invention also relates to a cosmetic method for caring for or making up the skin or the lips, comprising the topical application, to the skin or the lips, of a cosmetic composition comprising said copolymer.

Abstract: The invention relates to a cosmetic process for caring for or making up keratin materials, comprising: either the topical application to the keratin materials of an anhydrous mixture of a cosmetic composition comprising a maleic anhydride block polymer and of an amino alkoxysilane compound; or the sequential application to the keratin materials of an anhydrous cosmetic composition comprising a maleic anhydride block polymer and of an anhydrous cosmetic composition containing an amino alkoxysilane, said block polymer comprising: a first block with a glass transition temperature (Tg) of greater than or equal to 40° C., obtained from a monomer CH2?C(R1)—COOR2 in which R1?H or methyl, R2?C4 to C12 cycloalkyl group; and a second block with a glass transition temperature (Tg) of less than or equal to 20° C.

Abstract: Process for treating keratin fibres with an ethylenicpolymer bearing a maleic anhydride group and a polyol The invention relates to a cosmetic process for treating keratin fibres, comprising the application to the keratin fibres of a mixture of a maleic anhydride ethylenic polymer, a liposoluble polyol and an amine catalyst; said maleic anhydride ethylenic polymer being obtained by polymerization of: (a) 25% to 95% by weight, relative to the total weight of monomers, of an ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of maleic anhydride; (c) 0% to 50% by weight of additional (meth)acrylate monomer; and a step of heating the keratin fibres to a temperature ranging from 90° C. to 250° C. The invention also relates to the crosslinked polymer obtained by reacting said ethylenic polymer with said liposoluble polyol. The treated keratin fibres have good water-resistant fixing properties.

Abstract: The invention relates to a cosmetic process for caring for or making up keratin materials, comprising the sequential application to the keratin materials of a cosmetic composition comprising a maleic anhydride block polymer and a polyamine compound, said block polymer comprising: a first block with a glass transition temperature (Tg) of greater than or equal to 40° C. and is derived from a monomer CH2=C(R1)—COOR2 in which R1=H or methyl, R2?C4 to C12 cycloalkyl group; and a second block with a glass transition temperature (Tg) of less than or equal to 20° C. and is derived from a maleic anhydride monomer and from a N monomer CH2?C(R1)—COOR3 in which R1?H or methyl, R3=linear or branched C1 to C6 unsubstituted alkyl group, with the exception of a tert-butyl group, or a methoxyethyl group. The invention also relates to the crosslinked polymer obtained by reacting said block polymer with said polyamine compound.

Abstract: The invention relates to a cosmetic process for treating keratin materials, comprising: either the sequential application to the keratin materials of a composition comprising a maleic anhydride ethylenic polymer and of an amine compound chosen from polyamine compounds bearing several primary amine and/or secondary amine groups and amino alkoxysilanes, or the topical application to the keratin materials of a composition derived from the mixing of a composition comprising a maleic anhydride acrylic polymer and of an amine compound chosen from amino alkoxysilanes; the ethylenic polymer being derived from the polymerization of: (a) 45% to 95% by weight, relative to the total weight of monomers, of an ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of maleic anhydride; (c) 0 to 50% by weight of additional monomer; the compositions used being anhydrous when the amine compound is an amino alkoxysilane.

Abstract: The invention relates to a block polymer comprising: a first block with a glass transition temperature (Tg) of greater than or equal to 40° C., obtained from a monomer CH2?C(R1)—COOR2, in which R1?H or methyl, R2?C4 to C12 cycloalkyl group; and a second block with a glass transition temperature (Tg) of less than or equal to 20° C. derived from a vinylphosphonic acid and from a monomer CH2?C(R1)—COOR3, in which R1?H or methyl, R3=linear or branched C1 to C6 unsubstituted alkyl group, with the exception of a tert-butyl group or a methoxyethyl group. The invention also relates to a cosmetic composition comprising such a block polymer, and also to a process for caring for or making up keratin materials using said block polymer combined with an additional compound chosen from polyamine compounds bearing several primary amine groups and/or secondary amine groups, amino alkoxysilanes, salts of divalent or trivalent metal ions, clays and metal oxides.

Abstract: The invention relates to a cosmetic process for caring for or making up keratin materials, comprising the sequential application to the keratin materials: of a cosmetic composition comprising a maleic anhydride acrylic polymer obtained by polymerization of: (a) 50% to 90% by weight, relative to the total weight of monomers, of isobornyl (meth)acrylate (b) 1% to 50% by weight of maleic anhydride (c) 0% to 49% by weight of additional (meth)acrylate monomer; and of a polyamine compound bearing several primary amine and/or secondary amine groups. The process makes it possible to obtain a film-forming deposit that has good resistance to water, to oil and to sebum. The film is also non-tacky and transfer-resistant.

Abstract: The invention relates to a cosmetic process for caring for or making up keratin materials, comprising the topical application to the keratin materials of a cosmetic composition comprising a phosphonic polymer derived from the polymerization of: (a) 45% to 95% by weight of ethylenic monomer bearing an at least C8 linear or branched alkyl group; (b) 5% to 25% by weight of vinylphosphonic acid monomer; (c) 0 to 50% by weight of additional monomer chosen from linear or branched C1C6 alkyl (meth)acrylates, C6-C12 cycloalkyl (meth)acrylates, and polydimethylsiloxanes bearing a mono(meth)acryloyloxy end group, optionally combined with an additional compound chosen from polyamine compounds bearing several primary amine and/or secondary amine groups, aminosilanes, salts of divalent or trivalent metal ions, clays and metal oxides. The process makes it possible to obtain a film-forming deposit that has good resistance to water, to oil and to sebum. The film is also non-tacky and transfer-resistant.

Abstract: The invention relates to a cosmetic process for caring for or making up keratin materials, comprising either the topical application to the keratin materials of an (extemporaneous) anhydrous mixture of a cosmetic composition comprising a maleic anhydride acrylic polymer and of an amino alkoxysilane compound (I); or the sequential application to the keratin materials of an anhydrous cosmetic composition comprising a maleic anhydride acrylic polymer and of an amino alkoxysilane compound (I), wherein said maleic anhydride acrylic polymer is obtained by polymerization of: (a) 50% to 90% by weight, relative to the total weight of monomers, of isobornyl (meth)acrylate (b) 1% to 50% by weight of maleic anhydride (c) 0% to 49% by weight of additional (meth)acrylate monomer; said amino alkoxysilane having the formula (I): R—NH—R1Si(OR2)z(R3)x??(I) in which: R1 is a C1-C20 hydrocarbon-based divalent group, R=H or a C1-C4 alkyl group, R2 and R3 represent an alkyl group comprising from 1 to 6 carbon atoms; z d

Abstract: The invention relates to a copolymer resulting from the polymerization of: (i) 70% to 95% by weight, of the total weight of the monomers, of isobornyl (meth)acrylate; (ii) 1% to 30% by weight of vinylphosphonic acid monomer; (iii) 0 to 20% by weight of an additional monomer. The invention also relates to a cosmetic composition comprising the copolymer and to a cosmetic process for caring for or making up keratin materials, comprising the topical application of the composition to the keratin materials. It also relates to the use of the copolymer as a skin-tensioning agent.

Abstract: The invention relates to a copolymer resulting from the polymerization of: (a) 50% to 90% by weight, of the total weight of monomers, of isobornyl (meth)acrylate, (b) 1% to 50% by weight of maleic anhydride, (c) 0% to 49% by weight of additional (meth)acrylate monomer chosen from: (i) saturated or unsaturated and linear or branched C1-C20 alkyl (meth)acrylates, the alkyl being optionally interrupted by one or more nonadjacent heteroatoms chosen from O or S or by an NR group, R being a C1-C4 alkyl group, optionally substituted by a phenyl or furfuryl group; (ii) saturated C4-C8 cycloalkyl (meth)acrylates, the cycloalkyl being optionally interrupted by O or NH. The invention also relates to a composition comprising said copolymer in a physiologically acceptable medium. The invention also relates to a cosmetic method for caring for or making up the skin or the lips, comprising the topical application, to the skin or the lips, of a cosmetic composition comprising said copolymer.

Abstract: The invention relates to a cosmetic process for caring for the skin, more particularly facial skin, in particular wrinkled skin, comprising: either the topical application to the skin of an extemporaneous mixture of a cosmetic composition comprising a hyaluronic acid polymer grafted with (meth)acrylate groups and an amine compound; or the sequential application to the skin of a cosmetic composition comprising a hyaluronic acid polymer grafted with (meth)acrylate groups and of an amine compound having one or more primary amine and/or secondary amine groups. The invention also relates to the use of said grafted hyaluronic acid polymer and of said amine compound as a skin tensioning agent. The invention also relates to a cosmetic composition obtained by mixing a cosmetic composition comprising said grafted hyaluronic acid polymer and said amine compound.

Abstract: A photoprotective composition, in particular a cosmetic composition, that includes particles of photonic material having a polymeric multilayer interference structure, where at least two layers of the structure contain an amphiphilic polymer.

Abstract: The disclosure provides styling cosmetic compositions comprising, in a cosmetically acceptable medium predominantly comprising water, at least one pseudo-block polymer, cosmetic treatment processes for shaping and/or holding the hairstyle employing the cosmetic compositions and also to uses of the cosmetic compositions for obtaining shaping of the hair that is persistent over time and shaping of the hair that is moisture-resistant.

Abstract: Disclosed herein are novel block polymers comprising at least one first block and at least one second block, wherein the at least one first block comprises at least one acrylate monomer of formula CH2?CH—COOR2 wherein R2 is chosen from C4 to C12 cycloalkyl groups and at least one methacrylate monomer of formula CH2?C(CH3)—COOR?2 wherein R?2 is chosen from C4 to C12 cycloalkyl groups, and the second block comprises at least one acrylic acid monomer and at least one monomer with a glass transition temperature of less than or equal to 20° C. Also disclosed herein is a process for the preparation of such polymers which may be carried out continuously in a single reactor. Finally, further disclosed herein are compositions comprising the novel polymers and processes using the composition for making up and/or caring for keratinous substances or for improving the hold of a cosmetic composition while maintaining its gloss.

Abstract: The present invention relates to a diblock or triblock polymer of AB, ABA or BAB structure, comprising at least one block A which comprises isobutyl acrylate and acrylic acid. The invention also relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one such polymer, and also to a treatment process using it.