Abstract: The present invention relates to the use, for the manufacture of a hydroalcoholic composition comprising 50% to 80% by weight of at least one alcohol and at least 10% by weight of an aqueous phase, of a branched or crosslinked polymer obtained by polymerization of an aqueous solution of one or more monomers in a water-in-oil inverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer bearing at least one weak acid function, the molar percentage of monomers bearing at least one weak acid function relative to all the monomers used being at least 30%, and wherein: i) the polymerization is carried out with a concentration of all the monomers in aqueous solution belonging to the range from 1.3 mmol to 3.6 mmol per gram of aqueous solution, ii) during the polymerization, at most 20 mol % of the acid functions present on the monomers having at least one acid function are found in neutralized form.

Abstract: The present invention relates to a method for inerting clays in hydraulic compositions intended for construction purposes, said method comprising a step of adding to the hydraulic composition or to one of its constituents at least one clay inerting agent, characterised in that the clay inerting agent is a water-soluble polymer comprising acrylamide, and/or vinylamine, and/or vinylformamide monomer units, and optionally monomer units of a different chemical nature from the abovementioned chemical natures, and characterised in that its weight average molecular weight is between Mw L and Mw H.

Abstract: The present invention relates to a crosslinked copolymer obtained by precipitation polymerization of at least one monomer comprising at least one carboxylic acid function, at least one hydrophobic monomer, and at least one crosslinking agent. The copolymer is mainly characterized in that 30 mol % to 90 mol % of the carboxylic acid functions are in salified form prior to the precipitation polymerization, the solvent used for the precipitation polymerization comprises at least one alcohol comprising 1 to 4 carbon atoms, and the copolymer is obtained in the absence of water-soluble non-ionic monomers.

Abstract: This invention relates to the use, for the manufacture of a hydroalcoholic composition comprising at least water and at least one alcohol of a branched or cross-linked copolymer obtained from: (i) 20 mol % to 94.99 mol % of at least one monomer containing an acrylic group and bearing at least one weak acid function, (ii) 5 mol % to 79.99 mol % of at least one monomer bearing at least one strong acid function, (iii) 0.01 mol % to 4 mol % of a cross-linking/branching agent, said copolymer being obtained by precipitation polymerization, in a solvent comprising at least one alcohol.

Abstract: This invention relates to a process for preparing an inverse emulsion comprising mixing an aqueous solution comprising a water-soluble (co)polymer A synthesized from at least one cationic monomer and an inverse EMI 2 emulsion comprising a water-soluble (co)polymer B synthesized from at least one cationic monomer, optionally followed by distillation. This invention also relates to the inverse emulsion thus obtained, a detergent or cosmetic or softening composition comprising such an inverse emulsion, as well as the use of such an inverse emulsion to improve the softening properties of a fabric softening composition.

Abstract: This invention concerns a transparent composition comprising at least a first amphoteric water-soluble polymer, which comprises: A units of a cationic monomer selected from: acidified or quaternised dimethylaminoethyl acrylate salts, acidified or quaternised dimethylaminoethyl methacrylate salts, acidified or quaternised dimethylaminopropyl acrylamide salts, and acidified or quaternised dimethylaminopropyl methacrylamide salts, and mixtures thereof; B units of 2-acrylamido-2-methylpropanesulphonic acid and/or salts thereof; and optionally C units of acrylamide, characterised in that the molar ratio between the A units of cationic monomer and the B units of 2-acrylamido-2-methylpropanesulphonic acid and/or salts thereof is between 0.4 and 1.4.

Abstract: The present invention relates to a latex comprising a crosslinked polymer, the polymer comprising 20 to 45 wt % of (meth)acrylic acid monomer units, 35 to 78 wt % of methylacrylate and/or ethylacrylate monomer units, 0 to 30 wt % of monomer units of at least one linear alkyl acrylate, the linear alkyl comprising 3 to 9 carbon atoms, characterized in that the polymer is crosslinked with N-methylenebisacrylamide. The latex according to the invention helps thicken a composition for hair and/or skin care having a pH of between 3.5 and 5.5.

Abstract: This invention relates to a process for preparing an inverse emulsion comprising mixing an aqueous solution comprising a water-soluble (co)polymer A synthesized from at least one cationic monomer and an inverse EMI 2 emulsion comprising a water-soluble (co)polymer B synthesized from at least one cationic monomer, optionally followed by distillation. This invention also relates to the inverse emulsion thus obtained, a detergent or cosmetic or softening composition comprising such an inverse emulsion, as well as the use of such an inverse emulsion to improve the softening properties of a fabric softening composition.

Abstract: The invention relates to an aqueous cosmetic composition for care and maintenance of the hair comprising at least one setting resin, said resin comprising at least 20 mol % of a monomer unit of methacrylic acid and/or one of its salts; and optionally at least one monomer unit of acrylic acid and/or maleic anhydride, and/or one of their salts, the resin having a weight-average molecular weight greater than or equal to 20,000 g/mol. The invention also relates to the use of the setting resin for improving the resistance to humidity of these cosmetic compositions.

Abstract: The invention relates to an encapsulated fragrance composition including at least one microcapsule dispersed in a dispersion medium, said at least one microcapsule including a fragrance oil core and a positively charged shell, which includes a reaction product of at least one at least difunctional anionically modified isocyanate with an amine or alcohol, preferably a polyamine, and wherein the shell is formed around droplet of core material that is stabilized with a positively charged colloidal stabilizer. Furthermore, the invention relates to a process of formation of said encapsulated fragrance compositions.

Abstract: The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer, and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

Abstract: An encapsulated perfume composition comprising at least one perfume-containing aminoplast core-shell microcapsule dispersed in an aqueous suspending medium, the microcapsule being characterized in that it bears a positive charge.

Abstract: A cosmetic or dermatological composition comprising at least one aqueous phase, of a branched or crosslinked polymer is obtained by polymerization of an aqueous solution of one or more monomers in water-in-oil inverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer bearing at least one weak acid function, the molar percentage of monomers bearing at least one weak acid function relative to all of the monomers used being at least 30 mol %. The polymerization is carried out with a concentration of all the monomers in aqueous solution lying in the range 1.3 mmol to 3.6 mmol per gram of aqueous solution. During the polymerization, at most 20% of the acid functions present on the monomers having at least one acid function are in neutralized form. The compositions are intended for treatment of keratinous materials.

Abstract: An aqueous liquid detergent composition for household or industrial use, of a branched or cross-linked polymer is obtained by polymerizing an aqueous solution of one or more monomers by water-in-oil reverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer carrying at least one weak acid function. The molar percentage of monomers carrying at least one weak acid function relative to the totality of the monomers being used being at least 30%, characterized in that: i) the polymerization is carried out with a concentration of the totality of the monomers in aqueous solution being in the range 1.3 mmol to 3.6 mmol per gram of aqueous solution; ii) during the polymerization, at most 20% of the acid functions present on the monomers having at least one acid function are in the neutralized form.

Abstract: The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of aminoplast core-shell microcapsules containing an active material, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer, and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

Abstract: The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance, wherein the ampholyte copolymer comprises: 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group, 1 to 98 mol % of acrylic based monomer, 0 to 97 mol % of non-ionic monomer, and wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.

Abstract: The invention relates to an encapsulated fragrance composition including at least one microcapsule dispersed in a dispersion medium, said at least one microcapsule including a fragrance oil core and a positively charged shell, which includes a reaction product of at least one at least difunctional anionically modified isocyanate with an amine or alcohol, preferably a polyamine, and wherein the shell is formed around droplet of core material that is stabilized with a positively charged colloidal stabilizer. Furthermore, the invention relates to a process of formation of said encapsulated fragrance compositions.

Abstract: The present invention concerns the use, for the production of a cosmetic or dermatological composition comprising at least one aqueous phase, of a branched or crosslinked polymer obtained by polymerization of an aqueous solution of one or more monomers in water-in-oil inverse emulsion, at least one of the monomers used being an acrylic monomer and one or more of the monomers used being a monomer bearing at least one weak acid function, the molar percentage of monomers bearing at least one weak acid function relative to all of the monomers used being at least 30 mol %, characterized in that: i) the polymerization is carried out with a concentration of all the monomers in aqueous solution lying in the range 1.3 mmol to 3.

Abstract: Use for sizing textile materials with an aqueous sizing composition including at least one co-polymer obtained by the polymerization of at least one non-ionic monomer and/or one anionic monomer, and at least one monomer of formula (I): in which: R1 is an atom of hydrogen or a methyl radical; x=0 or 1; Z is a divalent grouping —C(?O)—O—, —C(?O)—NH—, or —CH2—; n is an integer between 1 and 250; R2 is a hydrogen atom or a carbonated radical—saturated or unsaturated, possibly aromatic, linear, ramified or cyclic—including from 1 to 30 carbon atoms and from 0 to 4 hetero-atoms chosen from the group including O, N and S.

Abstract: The invention relates to a process for preparing a cationic polymer thickener in particle form, said polymer consisting of a crosslinked water swellable cationic polymer comprising at least one cationic water soluble monomer and optionally at least one non-ionic water soluble monomer and/or at least one anionic water soluble monomer, wherein said polymer has a water extractable polymer content lower than 15 wt % as compared to the weight of the polymer, and wherein said polymer is obtained by gel polymerization of said monomers in the presence of from 500 ppm to 10.000 ppm of crosslinking agent relative to the weight of the monomers.