Abstract: The invention relates to the field of dispersing agents for an aqueous composition, in particular for dispersing a mineral material in the form of particles. The dispersing agent according to the invention comprises a dispersing polymer combined with an osidic derivative or a derivative of saccharide origin. The invention also relates to an aqueous composition comprising said dispersing agent and a mineral material in the form of particles, and to the use of said agent or composition.

Abstract: The invention relates to a copolymer obtained by polymerisation reaction of at least three comonomers: a first anionic monomer, a second monomer comprising an olefin unsaturation, and a third monomer comprising a hydrophobic group. The invention likewise relates to the use of said copolymer as a thickening agent, in particular in aqueous suspensions of mineral particles with high solids content. The copolymer according to the invention makes it possible to improve the compromise between viscosity with high shear gradient and viscosity with low shear gradient, while also improving water retention inside the suspension.

Abstract: (EN) The invention relates to the field involved in the production of aqueous compositions comprising rheology modifying agents, in particular the production of aqueous detergent or cosmetic compositions having improved, thickening and clarity properties, as well as good suspension properties. In particular, the invention relates to a rheology modifying agent which is a copolymer obtained by means of polymerisation of at least one crosslinking monomer with at least one anionic monomer comprising at least one polymerisable ethylenic unsaturation and at least one hydrophobic non-ionic monomer comprising at least one polymerisable ethylenic unsaturation.

Abstract: The invention relates to the preparation of a water-soluble anionic polymer, the weight-average molecular mass MW of which ranges from 1,000 to 10,000 g/mol and the polydispersity index Ip of which is less than 3.5. The polymer according to the invention is obtained by a polymerization reaction in water of an unsaturated anionic monomer, in the presence of CuI or of CuII and of an aromatic compound comprising a functional group chosen from hydroxyl, primary amine, secondary amine and tertiary amine directly bonded to the aromatic ring. The invention also relates to an aqueous composition comprising the polymer according to the invention.

Abstract: The present invention relates to novel associative thickeners pertaining to the HEUR category (Hydrophobically-modified Ethoxylated URethane), to intermediate aqueous formulations containing such thickeners, and to the final compositions, for example paint, lacquer, varnish or paper coating slip compositions.

Abstract: The invention relates to the field of associative thickeners, and more particularly to associative thickeners of the HEUR type, used in aqueous formulations. In particular, the invention relates to a method for the continuous preparation of HEUR-type associative thickeners by reactive extrusion.

Abstract: A water-rinsable, aqueous cleansing formulation may include a cosmetic oily component. The formulation may foam and remain stable despite the presence of a cosmetic oily component, even when the oily component is present in potentially substantial amounts.

Abstract: The invention concerns the field of detergent compositions, in particular detergent compositions for automatic washing, in particular for automatic dishwashing. Therefore, the invention provides a phosphate-free detergent composition comprising at least one non-sulfonated, non-ionic surfactant compound and a non-sulfonated water-soluble copolymer prepared, by polymerisation reaction, in the presence of at least one compound comprising at least one alcohol function, acrylic or methacrylic acid and a compound of formula (I): The invention also concerns the use of this non-sulfonated water-soluble copolymer as an anti-scaling agent or anti-drip agent, and a cleaning method.

Abstract: Process for thickening a composition, through the use of a direct emulsion in water, which is alkali-swellable, of a polymer of the ASE or HASE type, which is both rich in acrylic acid and which has a certain quantity of AMPS. The use of such emulsions simultaneously allows there to be no obligation to use surfactants and organic solvents other than water, and allows the thickening phenomenon to be activated for pHs of less than 7: this latter characteristic is particularly advantageous for formulations intended to be used in contact with skin.

Abstract: The present invention relates to novel associative thickeners pertaining to the HEUR category (Hydrophobically-modified Ethoxylated URethane), to intermediate aqueous formulations containing such thickeners, and to the final compositions, for example paint, lacquer, varnish or paper coating slip compositions.

Abstract: A polymer may have a molecular mass of less than 8,000 g/mol and a polymolecularity index PI of less than 3, produced by free radical polymerization, in water, and at a temperature higher than 50° C., of at least one anionic monomer comprising at least one polymerizable olefinic unsaturation and at least one carboxylic acid function, in the presence of phosphorus with a degree of oxidation I, phosphorus with a degree of oxidation III and a radical-generating compound. Such polymers may be produced and use for grinding mineral matter, as a detergent agent, or as an anti-scaling agent.

Abstract: The invention relates to a process for preparing a dispersion of a lipophilic compound in a continuous hydrophilic phase, the morphology of which is submicronic. During the preparation of this dispersion, there is applied, by means of a device which produces a shearing gradient less than 5000 s?1, a shear stress from 100 to 5000 Pa during the addition of the lipophilic compound in the continuous phase which comprises a rheology-modifying compound selected from anionic copolymers, preferably an anionic polymer, in particular an ASE polymer or a HASE polymer. The dispersed particles of the lipophilic compound are nanometric particles whose size is less than 1 ?m. The dispersion, particularly in the form of an emulsion, can be used in numerous fields.

Abstract: A method can prepare an aqueous mineral suspension from an aqueous metal ore residue into which there is introduced a polymer (P) having a molecular weight Mw measured by GPC of from 100,000 to 3.106 g/mol and prepared by free radical polymerization of at least one anionic monomer (m). The suspension produced may have a Brookfield viscosity greater than 2,000 mPa·s and/or a flow threshold of greater than 40 Pa.

Abstract: The invention concerns a method for preparing an aqueous mineral suspension from an aqueous metal ore residue into which a polymer (P) is introduced having a molecular mass Mw measured by GPC ranging from 2,000 to 20,000 g/mol and prepared by radical polymerisation of at least one anionic monomer (M). The invention also concerns the suspension produced, the Brookfield viscosity of which is lower than 1,800 mPa·s or the yield point of which is lower than 80 Pa.

Abstract: The invention relates to a method for the industrial preparation of phosphoric acid from an aqueous suspension comprising water and particles of at least one phosphate material dispersed in the presence of at least one additive of the anionic polymer type. Phosphoric acid is obtained by treating this suspension with at least one strong acid. The polymer is obtained by polymerization reaction of at least one acid selected from acrylic acid, methacrylic acid and salts thereof. The invention relates to the use of this anionic polymer as well as the method for improving the rheology of the suspension and the hydrodynamics of the reaction medium in which the reactions for the manufacture of phosphoric acid take place.

Abstract: The invention relates to a method for controlling the sedimentation of an aqueous mineral suspension of a mining derivative by means of the gravimetric concentration of the aqueous suspension in the presence of a flocculating agent and a polymer (P) which has a GPC-measured molecular mass Mw of between 2000 and 20000 g/mol and is prepared using at least one free radical polymerisation reaction of at least one anionic monomer (M). The invention also relates to the resulting suspension, which has a Brookfield viscosity of less than 1 800 mPa·s or a yield point of less than 80 Pa.

Abstract: The invention relates to a cosmetic composition in the form of an emulsion which is water-resistant due to the use of an emulsifying polymer. This polymer is prepared by polymerization of an anionic monomer and a C1-C7 unsaturated carboxylic acid ester. The cosmetic composition according to the invention is free of film-forming agent and surfactant compound. The invention also relates to the preparation and the use of this cosmetic composition.

Abstract: The invention relates to a rheology-modifying urethane compound. The compound comprising urethane functions of the invention can be prepared according to a method in several steps which use different compounds comprising isocyanate functions. For the preparation of the urethane compound according to the invention, a monoisocyanate compound, in particular a monoisocyanate compound resulting from the separate condensation of an asymmetric diisocyanate compound with a reactive compound, is reacted with an alkylene glycol compound in the presence of a polyisocyanate compound. The invention also provides coating compositions comprising mineral particles and a urethane compound according to the invention.

Abstract: The invention relates to a method for preparing an aqueous suspension (S) of mineral particles of a metal ore, of a metal ore residue or of a metal to be recycled comprising a particular polymer (P) and recycle water originating from an aqueous metal ore residue, an aqueous metal ore suspension or an aqueous suspension of a metal to be recycled. The invention also relates to a method for controlling, improving or reducing the turbidity of the supernatant water originating from an aqueous suspension (S). The invention also provides an aqueous suspension (S).

Abstract: The invention relates to the field of detergent compositions, in particular detergent compositions for automatic washing, especially for automatic dishwashing. Thus, the invention provides a phosphate-free detergent composition comprising at least one non-sulfonated nonionic surfactant compound and a non-sulfonated water-soluble copolymer prepared especially by polymerization reaction of acrylic or methacrylic acid, of an acrylic or methacrylic acid, itaconic acid or maleic acid ester and of a compound of formula (I): The invention also relates to the use of this non-sulfonated water-soluble copolymer as a scale-inhibiting agent or anti-spotting agent, and also to a cleaning process.