Abstract: A linear, block copolymer, which is useful in cosmetics and improves the styling power and hold of hair laquer, adhesion of nail varnish and hold/adhesion of makeup, includes at least two blocks having different glass transition temperatures, Tg; where at least one of said blocks has a glass transition temperature of 20° C. to ?100° C., and wherein the at least one block having a Tg of 20° C. to ?100° C. is a copolymer B having a first monomer wherein the Tg of the corresponding homopolymer is in the range from more than 20° C. to 200° C., and a second monomer wherein the Tg of the corresponding homopolymer is in the range from 20° C. to ?100° C.

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 present invention relates to novel block polymers comprising at least one first block and at least one second block that are incompatible with each other, have different glass transition temperatures (Tg), and are linked together via an intermediate segment comprising at least one constituent monomer of the at least one first block and at least one constituent monomer of the at least one second block. The block polymer has a polydispersity index I of greater than 2. The invention also relates to cosmetic compositions comprising the block polymers and processes for their use.

Abstract: The present invention relates to novel block polymers comprising at least one first block and at least one second block that are incompatible with each other, have different glass transition temperatures (Tg), and are linked together via an intermediate segment comprising at least one constituent monomer of the at least one first block and at least one constituent monomer of the at least one second block. The block polymer has a polydispersity index I of greater than 2. The invention also relates to cosmetic compositions comprising the block polymers and processes for their use.

Abstract: A cosmetic composition where a linear, block ethylenic copolymer is dissolved in a physiologically acceptable medium, wherein the linear, block ethylenic copolymer improves the hold of hair lacquer, increases the adhesion of a nail varnish and improves the hold and adhesion of makeup.

Abstract: A cosmetic composition of a linear, block ethylenic copolymer dissolved in a physiologically acceptable medium where the linear, block ethylenic copolymer includes at least two blocks having different glass transition temperatures, Tg; and one of the blocks is a copolymer of different monomers chosen from acrylates and/or methacrylates.

Abstract: The present invention relates to novel block polymers comprising at least one first block and at least one second block that are incompatible with each other, have different glass transition temperatures (Tg), and are linked together via an intermediate segment comprising at least one constituent monomer of the at least one first block and at least one constituent monomer of the at least one second block. The block polymer has a polydispersity index I of greater than 2. The invention also relates to cosmetic compositions comprising the block polymers and processes for their use.

Abstract: The invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one dispersion of particles of a non-silicone-based grafted ethylenic polymer in a liquid fatty phase. Use for making up and caring for keratin materials, especially the skin and the lips.

Abstract: The invention relates to novel amphiphilic cationic associative polyurethanes of formula (I): R-X-(P)n-[L-(Y)m]r-L?-(P?)p-X?-R???(I) in which: R and R?, which are identical or different, represent a hydrophobic group or a hydrogen atom; X and X?, which are identical or different, represent a group comprising an amine functional group which may or may not carry a hydrophobic group or the L group; L, L? and L, which are identical or different, represent a group derived from a diisocyanate; P and P?, which are identical or different, represent a group comprising an amine functional group which may or may not carry a hydrophobic group; Y represents a hydrophilic group; r is an integer between 1 and 100, preferably between 1 and 50 and in particular between 1 and 25, n, m and p have values, each independently of the others, between 0 and 1000; the molecule comprising at least one protonated or quaternized amine functional group and at least one hydrophobic group.

Abstract: Disclosed is a hyperbranched copolymer comprising at least two polymeric branches, which may be identical or different, each comprising at least one at least trifunctional branch point, wherein a first polymeric branch comprises at least one first monomer chosen from isobornyl acrylate, isobornyl methacrylate, isobutyl acrylate, isobutyl methacrylate and 2-ethylhexyl acrylate, a second polymeric branch comprises at least one second monomer chose from isobornyl acrylate, isobornyl methacrylate, isobutyl acrylate, isobutyl methacrylate and 2-ethylhexyl acrylate. Also disclosed is a cosmetic or pharmaceutical composition, for example, a dermatological composition, comprising said hyperbranched copolymer. Further disclosed is a cosmetic method of making up or caring for keratin materials, comprising applying to said materials a cosmetic composition comprising said hyperbranched copolymer.

Abstract: The invention relates to self-stabilized dispersions of polymer particles in a non-aqueous non-silicone medium, and to a process for preparing the said polymers. The invention also relates to cosmetic or pharmaceutical compositions comprising the said polymer particle dispersions.

Abstract: Disclosed is a hyperbranched copolymer comprising at least two polymeric branches, which may be identical or different, each comprising at least one at least trifunctional branch point, wherein a first polymeric branch comprises at least one first monomer chosen from isobornyl acrylate, isobornyl methacrylate, isobutyl acrylate, isobutyl methacrylate and 2-ethylhexyl acrylate, a second polymeric branch comprises at least one second monomer chose from isobornyl acrylate, isobornyl methacrylate, isobutyl acrylate, isobutyl methacrylate and 2-ethylhexyl acrylate. Also disclosed is a cosmetic or pharmaceutical composition, for example, a dermatological composition, comprising said hyperbranched copolymer. Further disclosed is a cosmetic method of making up or caring for keratin materials, comprising applying to said materials a cosmetic composition comprising said hyperbranched copolymer.

Abstract: Disclosed is a hyperbranched copolymer comprising at least two polymeric branches, which may be identical or different, each comprising at least one at least trifunctional branch point, wherein a first polymeric branch comprises at least one first monomer chosen from isobornyl acrylate, isobornyl methacrylate, isobutyl acrylate, isobutyl methacrylate and 2-ethylhexyl acrylate, a second polymeric branch comprises at least one second monomer chose from isobornyl acrylate, isobornyl methacrylate, isobutyl acrylate, isobutyl methacrylate and 2-ethylhexyl acrylate. Also disclosed is a cosmetic or pharmaceutical composition, for example, a dermatological composition, comprising said hyperbranched copolymer. Further disclosed is a cosmetic method of making up or caring for keratin materials, comprising applying to said materials a cosmetic composition comprising said hyperbranched copolymer.

Abstract: Linear block ethylenic copolymer, comprising: at least two blocks having different glass transition temperatures (Tg); at least one of these blocks having a glass transition temperature of less than equal to 20° C.; the said copolymer also having an adhesion or “tack” value of greater than 1N. Cosmetic composition comprising this copolymer. The copolymer improves the styling power and hold of a hair lacquer, increases the adhesion of a nail varnish and improves the hold and adhesion of a makeup composition.

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 novel block polymers comprising at least one first block and at least one second block that are incompatible with each other, have different glass transition temperatures (Tg), and are linked together via an intermediate segment comprising at least one constituent monomer of the at least one first block and at least one constituent monomer of the at least one second block. The block polymer has a polydispersity index I of greater than 2. The invention also relates to cosmetic compositions comprising the block polymers and processes for their use.

Abstract: The present invention relates to novel block polymers comprising at least one first block and at least one second block that are incompatible with each other, have different glass transition temperatures (Tg), and are linked together via an intermediate segment comprising at least one constituent monomer of the at least one first block and at least one constituent monomer of the at least one second block. The block polymer has a polydispersity index I of greater than 2. The invention also relates to cosmetic compositions comprising the block polymers and processes for their use.

Abstract: The present invention relates to novel block polymers comprising at least one first block and at least one second block that are incompatible with each other, have different glass transition temperatures (Tg), and are linked together via an intermediate segment comprising at least one constituent monomer of the at least one first block and at least one constituent monomer of the at least one second block. The block polymer has a polydispersity index I of greater than 2. The invention also relates to cosmetic compositions comprising the block polymers and processes for their use.

Abstract: A cosmetic composition comprising, in a cosmetically acceptable medium, at least one film-forming polymer (A) chosen so that a material, obtained by drying the at least one polymer (A) in an aqueous or alcoholic medium at ambient temperature and at a relative humidity of 50%±5%, exhibits a mechanical profile defined by at least: (a) an elongation at break (?b) of greater than or equal to 160%; (b) an instantaneous recovery (Ri) of from 25 and to 70% after an elongation of 150%; and (c) a recovery (R300) at 300 seconds of from 30 and to 100% after an elongation of 150%; wherein the at least one film-forming polymer (A) comprises at least one monomeric residue comprising an unsaturated acid unit, the acid number of which is greater than 82. Processes for obtaining such cosmetic compositions are also disclosed.

Abstract: The present disclosure relates to a cosmetic composition comprising particles of at least one polymer dispersed in a fatty phase, the at least one fatty phase is free of volatile oil or comprises less than 50% by weight of volatile oil relative to the weight of the at least one fatty phase, and the liquid fatty phase comprising at least 5% by weight of at least one sparingly polar or apolar oil. The apolar or sparingly polar oil may be, for example, a non-volatile hydrocarbon-based apolar oil.