Rhodia Operations

Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Innophos, Inc.

Eurovia

David Monin

Arnaud Cadix

Olivier Larcher

Emmanuel Rohart

Marie-Pierre Labeau

Jean-Valery Martin

Chi-Thanh Vuong

Denis Bendejacq

Didier Lesueur

Sébastien Hollinger

Christelle Genin

Javier Hurtado Aznar

The invention relates to a copolymer including betaininc units and hydrophobic and/or amphiphile units. The invention also relates to a method for preparing a copolymer including betaininc units and hydrophobic and/or amphiphile units, by controlled micellar polymerisation. The invention further relates to the uses of the copolymer. The copolymer is particularly used for increasing the viscosity of saline aqueous compositions.

Copolymer including betaine units and hydrophobic and/or amphiphilic units, method for preparing same and uses thereof

A process for the wet drawing of a steel wire intended for reinforcing a pneumatic tire. The process starts from a steel wire having a diameter greater than 0.6 mm. The wire is drawn through a series of dies of decreasing diameter, in the presence of a lubricant composition that is in the form of an aqueous dispersion, down to a predetermined final diameter of less than 0.5 mm. The aqueous dispersion comprises solid particles of an ester of a fatty acid comprising from 5 to 40 carbon atoms.

Method for the wet drawing of steel cables for reinforcing tires

The inventive composition, according to a first embodiment, consists essentially of a cerium oxide and a zirconium oxide. According to a second embodiment, said composition is based on cerium oxide, zirconium oxide and at least one rare earth oxide other than cerium. After a first 4-hour period of calcination at 900 .C followed by a second 10-hour period of at 1000 .C, the specific surface variation thereof is 20% maximum in the first embodiment and 15% maximum in the second embodiment. The inventive composition can be used as a catalyst, i.e. in the treatment of waste gases from internal combustion engines.

Composition based on cerium and zirconium oxides having a specific surface which is stable between 900&#xb0; c and 1000&#xb0; c method for the production and use thereof as a catalyst

The invention concerns a bitumen emulsion-based surfacing composition or bituminous mix consisting of an amphoteric surfactant and its use in road highway engineering for making materials for new roads, for reinforcing or maintaining old roads or for punctually repairing same.

Bitumen emulsion-based composition

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Paris, France

David Monin