The invention relates to the use of copolymers obtained by the polymerisation of styrene maleic anhydride functionalised or not for producing an aqueous suspension of precipitated calcium carbonate (PCC) by slaking a material containing calcium oxide in water then by carbonation of the milk of lime thus produced. ...

The present invention relates to novel associative thickeners belonging to the HEUR (Hydrophobically modified Ethyoxylated URethane) category and also to intermediate aqueous formulations containing such thickeners and to the final compositions for example paint lacquer varnish or paper coating slip compositions. ...

The invention relates to novel associative thickeners belonging to the category of hydrophobically modified ethoxylated urethanes (HEUR) comprising an associative compound of the bicycloheptene type for thickening aqueous compositions as well as to formulations containing such thickeners and to the end compositions ...

The invention relates to the use of a comb polymer for preparing a suspension said suspension including calcium carbonate the viscosity of said aqueous suspension as measured by a HAAKE Rheostress rheometer at 20 sbeing between 25 and 1 000 mPa·s measured at 20 °C and 90 °C.

The present invention relates to the technical field of hydraulic compositions for example concrete and mortar compositions. More specifically the present patent application relates to additives used in hydraulic compositions to the compositions containing same and also to the method for preparing these additives an...

The invention relates to novel emulsions containing associative acrylic thickeners that when polymerized in the presence of specific polyglycerols have a remarkably stable thickening power over time. The visometric shift resulting from said type of thickener is thus considerably reduced in particular in low VOC (Vol...

The present invention concerns the use of a specific copolymer for homogenising compositions comprising pigments and/or nacres and film forming polymers and the cosmetic compositions containing such a copolymer.

The present invention relates to a ternary mixture consisting of at least one homopolymer or copolymer of (meth)acrylic acid partially or completely neutralised with sodium with potassium with lithium and/or with an amine at least one silicate or metasilicate solution selected from the group consisting of a sodium sil...

The present invention relates to novel associative thickeners belonging to the HEUR (hydrophobically modified ethylene oxide urethane) category. Said products contain an original associative monomer based on alkoxylated cyclohexylol alkyls. The thickening property thereof is greater than or equal to that of the HEUR...

11The invention relates to microparticles having a polymeric envelope and to aqueous dispersions comprising said microparticles. The microparticles with a polymeric envelope comprise: a) at least one HASE type acrylic copolymer; b) at least one solid liquid phase change material having a phase transition temperature T...

The present invention concerns a suspension made from lime comprising a water soluble copolymer as an additive and a method for preparing such a suspension. Such suspensions are used in particular as chemical neutralising agents in industrial or domestic processes.

The invention relates to a calcium hydroxide based suspension comprising an additive and to a method for producing such a suspension. Such suspensions are especially used as chemical neutralisation agents in industrial or household methods.

The present invention relates to the use of at least one cationic polymer in a method for manufacturing an aqueous suspension of precipitated calcium carbonate whereby milk of lime is prepared by mixing water a material containing calcium oxide said at least one cationic polymer and optionally at least one extinguis...

212pnmnmThe invention concerns novel copolymers obtained by polymerisation from a mixture of monomers comprising:  at least one anionic monomer (a) comprising a polymerisable unsaturated function and a carboxylic group; and  at least one monomer (b) of formula (I): HC = C ( R)  (CH) O [(EO) (PO)] H (I) in which [(EO) ...

The invention relates to cosmetic formulations containing as a thickener amphiphilic comb polymers having a high content of hydrophobic monomers and polyalkylene glycol monomers. Said polymers are provided in the form of solid particles dispersed in water and have a weight average molar mass of about one million grams...

The present invention concerns the use of new additives in a paint formulation comprising titanium dioxide particles (Ti0) as agents improving the opacity of the dry or drying film and paint formulations comprising such agents.

The present invention relates to the use of (meth)acrylic comb copolymers having side branchings of hydroxy or alkoxy polyalkylene glycol type in which ethylene oxide and propylene oxide chain members are present at the same time. The latter give the shampoos in which they are incorporated a styling effect and a rem...

The invention relates to novel associative thickeners of the hydrophobically modified ethylene oxide urethane (HEUR) type of which the hydrophobic monomer is based on cyclohexylol alkyls. It is these novel polyurethanes that allow the liberal thickening of an aqueous formulation at a medium shear gradient while limi...

The present invention concerns new associative thickeners of the HEUR type (Hydrophobically modified Ethylene oxide URethane) whose hydrophobic monomer is based on alkyl cyclohexylols. These are new polyurethanes that significantly thicken an aqueous formulation with a low, medium and high shearing gradient. The inven...

The present invention relates to the use of a solution of depolymerised carboxylated cellulose for preparing an aqueous solution of precipitated calcium carbonate (PCC) by slaking a material containing calcium oxide in water and then by carbonating the limewater thus obtained said depolymerised carboxylated cellulos...

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

The present invention relates to novel acrylic associative thickeners that when polymerized in the presence of specific polyglycerols result in an ultimate increase in the open time of the paint or thick coating into which said thickeners are incorporated. As a result the painters and appliers will have more time to...

The invention relates to the preparation of a water-soluble anionic polymer, with a molecular weight Mw of 1,000 to 10,000 g/mol and with a polydispersity index IP of less than 3.5. The polymer according to the invention is obtained by polymerisation reaction in water of an unsaturated anionic monomer, in the presen...

The invention relates to an aqueous composition comprising a copolymer obtained by a particular polymerization reaction using an anionic monomer comprising a polymerizable olefinic unsaturation and a carboxylic acid function and a monomer of formula (I): the invention also relates to this copolymer per se, and to a ...

The present invention relates to a method for producing mineral particles grinding a mineral material in the presence of a specific anionic polymer. The polymer used is obtained by means of polymerisation in the presence of sodium hypophosphite, disodium dipropionate trithiocarbonate and at least one radical-generat...

The invention relates to the field of detergent compositions and, in particular, detergent compositions for automatic washing, especially for automatic dishwashers. The invention provides a phosphate-free detergent composition comprising at least one non-sulphonated, non-ionic surfactant compound, and one non-sulpho...

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 re...

The invention concerns multiphase polymers comprising 45 % to 95 % by weight of a first polymer P1 and 5 % to 55 % by weight of a second polymer P2 said polymers P1 and P2 being different compositions said polymer P1 being obtained by polymerisation from a mixture of monomers comprising at least one anionic monomer ...

The present invention relates to a novel method for solvent free preparation of a polymer of (meth)acrylic acid in a solution said polymer having a molecular weight of less than 8 000 g/mol and a polydispersity index (PDI) of 2 to 5 by radical polymerisation.

The invention concerns the use for increasing the early age mechanical resistance of a hydraulic composition of at least one copolymer obtained by polymerisation from a mixture of monomers comprising:  at least one anionic monomer (a) comprising a polymerisable unsaturated function and a carboxylic group; and  at le...

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

1 120 The present invention relates to a polymer obtained by radical polymerization of a mixture of monomers comprising: at least one anionic monomer (a) having a polymerizable vinyl function; at least one non ionic hydrophobic monomer (b) having a polymerizable vinyl function; and one or more crosslinking monomer(s...

The invention relates to the field of preparing aqueous dispersions of organic organometallic or inorganic particles. In particular the invention relates to the preparation of aqueous suspensions comprising organic organometallic or inorganic particles and at least one particular copolymer obtained by polymerization...

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 re...

The invention relates to a rheology-modifying urethane compound. The compound comprising urethane functions of the invention can be prepared according to a process in several steps which use different compounds comprising isocyanate functions. For the preparation of the urethane compound according to the invention a...

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 fro...

The invention relates to a method for preparing an aqueous suspension of at least one phosphate material, comprising dispersing, in water, particles of phosphate material in the presence of at least one additive of the anionic polymer of acrylic acid or of methacrylic acid type. The suspension according to the inven...

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. These products are i...

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 inv...

The invention relates to the field of materials based on calcium carbonate and in particular the use thereof as a filler for plastic polymer materials. The invention provides a method for reducing the hygroscopicity of a material (M) comprising calcium carbonate using at least one copolymer for assisting in grinding...

The invention relates to the preparation of an aqueous composition that is resistant to temperature variations due to the use of at least one specific heat-stabilizing agent (P). The invention also relates to the heat stabilization of the viscosity of the aqueous composition within a wide temperature range. ...

The present invention concerns a method for deinking waste paper comprising a pulping step followed by a so called flotation step characterised in that it comprises a step of introducing at least one polyacrylate dispersant representing 0.05 % to 3.5 % by weight of the mineral fillers of the waste paper. The inventi...

The invention relates to the synthesis of an associative acrylic (co)polymer by radical polymerisation in an aqueous emulsion said (co)polymer comprising at least one mixture of oligomers of acrylic acid which are represented by formula (I) in which n is a whole number between 1 and 10 said oligomers being prepared ...

The invention relates to a paper coating slip composition comprising a copolymer of thickening acrylic acid, a mineral material in the form of particles, a binding agent, and water. The invention also relates to the use of said composition for the production of paper or cardboard, improving the water retention of th...

The invention pertains to the field of materials based on calcium carbonate and in particular to the use thereof as a filler in polymeric plastics. The invention provides a method for reducing the hygroscopicity of a material (M) comprising calcium carbonate by treatment with at least one homopolymer grinding assist...

The invention concerns a composition for preparing a coating, such as a paint or a varnish, comprising an acrylic acid copolymer thickener, a polymer binder chosen from a vinyl acetate homopolymer, a vinyl acetate copolymer, a vinyl versatate homopolymer, a vinyl versatate copolymer and combinations thereof, and wat...

The invention pertains to the field of aqueous thickening compositions, particularly for increasing the viscosity of an aqueous paint or varnish composition, a detergent composition or a cosmetic composition, in particular a cosmetic composition comprising ethoxylated surfactant compounds. The composition according ...

The invention relates to a copolymer obtained by a polymerization reaction using an anionic monomer and two polyethoxylated monomers. The invention also relates to a composition comprising said copolymer as well as to a process for its preparation and to its use as a superplasticizer for a hydraulic binder compositi...

The invention relates to a thickening (meth)acrylic copolymer prepared using a polyalkoxylated Guerbet alcohol comprising a double-branched alkyl group. The invention also relates to the process for preparing said copolymer and to the use thereof in aqueous compositions, in particular coating compositions. ...

The invention relates to a thickening urethane copolymer which is prepared using a non-alkoxylated Guerbet alcohol comprising a double-branched alkyl group. The invention also relates to the process for preparing said copolymer and to the use thereof in aqueous compositions, in particular in coating compositions. ...

The invention relates to a thickening urethane copolymer which is prepared using a polyalkoxylated Guerbet alcohol comprising a double-branched alkyl group. The invention also relates to the process for preparing said copolymer and to the use thereof in aqueous compositions, in particular in coating compositions. ...

The invention relates to an aqueous anode composition comprising metal particles or fibres or carbon graphite particles or fibres, and a binding agent containing at least one water-soluble polymer P prepared on the basis of (meth)acrylic acid and (meth)acrylate. The invention also relates to a method for producing a...

The invention relates to an aqueous anode composition comprising metal particles or fibres or carbon graphite particles or fibres, and a binding agent containing at least one water-soluble polymer P prepared on the basis of an organosulfur monomer. The invention also relates to a method for producing an anode using ...

The invention relates to an aqueous anode composition comprising carbon particles or metal particles and a crosslinkable composition. The crosslinkable composition comprises a polycarboxylic polymer combined with an alcohol or an amine. The invention also relates to a method for producing an anode using said aqueous...

The invention relates to a thickening copolymer and a non-continuous method for preparing the same. The preparation method first involves a polymerization reaction between a dihalogenated compound and a polyhydroxylated monomer, followed by a reaction with a hydrophobic monoalcohol. Said copolymer makes it possible ...

The invention relates to an aqueous composition for preparing a coating, comprising a rheological control agent comprising urethane polymers. This agent is prepared discontinuously by a polymerization reaction of a diisocyanate compound and a polyhydroxylated compound, followed by the termination reaction of the pre...

The invention relates to a composition for preparing a cathode priming coat, comprising a polyacrylic binder that has a low molecular weight, and carbon particles. The invention also relates to the use of said composition for preparing a cathode as well as to the cathode that can be used for manufacturing cells for ...