Coatex

Laurie Parrenin

Jean-Marc Suau

Clementine Champagne

Christian Jacquemet

Francois Dupont

Catherine Corfias Zuccalli

Francis Bony

Clémentine Champagne

Michel Melas

A composition suitable for preparing a coating, such as a paint or a varnish, may include 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 water. A composition including the acrylic acid copolymer and such a polymer binder may be used in an aqueous coating composition in order to improve the stability of same during storage.

Aqueous coating composition

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.

Copolymer and grinding of a mineral matter

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 the paper coating slip.

Composition for paper coating slip

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Genay, France

Laurie Parrenin