Coatex

Yves Matter

Jean-Marc Suau

Denis Ruhlmann

Benoit Magny

Catherine Corfias Zuccalli

Jean-Luc Dubois

Jacques Mongoin

Christian Jacquemet

Yves Kensicher

Clementine Champagne

Francois Dupont

David Platel

Francis Bony

Benoît Magny

Dominique Peycelon

Morgane Le Neindre

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 to the invention comprises at least 40% by weight of water and combines a particular thickening compound and a nonionic compound comprising at least one hydrophilic saccharide group attached to at least one linear or branched hydrophobic chain.

Aqueous thickening composition

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.

Thickening agent for aqueous systems, formulations containing same and uses thereof

The invention relates to the field involving the softening or lubricating of natural, synthetic or mixed textile fibres, as well as keratin fibres. The invention provides a softening composition, the rheology of which is controlled by means of a particular thickening agent. The invention also relates to the thickening agent, which is made from multiple isocyanate compounds.

Softening composition

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.

Thickening anionic copolymer

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.

Rheology-modifying urethane compound

The present invention relates to a ternary mixture consisting of at least one homopolymer or copolymer of (meth)acrylic acid, partially or completely neutralized with sodium, with potassium, with lithium and/or with an amine, at least one solution of silicate or metasilicate chosen from the group consisting of a sodium silicate of formula NaO.nSiO(with n varying between 1 and 4), sodium metasilicate NaSiO, a potassium silicate KO.nSiO(with n varying between 1 and 4), potassium metasilicate KSiOand a mixture of these compounds, and at least one base, as dispersion and/or grinding aid agents of kaolin in aqueous suspension.

Dispersion and/or grinding aid agents of kaolin in aqueous suspension, aqueous suspensions obtained and uses thereof

The invention relates to a novel method for the continuous production of anionic polymers by radical polymerization. The polymers produced by said method have a controlled molecular weight.

Method for the continuous production of anionic polymers using radicals

The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170&#xb0; C.

Continuous esterification and/or amidification method, without organic solvent, of an acid homopolymer or copolymer

The present invention relates to novel associative thickeners belonging to the category of the HEURs (Hydrophobically modified Ethoxylated URethanes) comprising an associative compound of bicycloheptane type for thickening aqueous compositions, and also to formulations compositions comprising such thickeners and to the final compositions, for example paint, lacquer, varnish or paper coating color formulations.

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Quincieux, France

Yves Matter