Centre National De La Recherche Scientifique

Solvay Sa

Rhodia Operations

Universitè De Montpellier

Universite Claude Bernard – Lyon1

Ecole Nationale Superieure De Chimie De Montpellier

Specialty Operations France

Ecole Superieure De Chimie Physique Electronique De Lyon

Ezus Lyon

Pierre-Emmanuel Dufils

David James Wilson

Yves Vanderveken

Lichang Zhou

Patrick Lacroix-Desmazes

Kevan Hatchman

Jérôme Vinas

Shailesh Majmudar

Laurianne Timbart

Homayoun Jamasbi

Fabio Trezzi

Elodie Bourgeat-Lami

Dongcheel Lee

An Tran

Muriel Lansalot

Laura Delafresnaye

Zongming Xiu

Jia Zhou

Tiffany Chen

Changheon Kang

Jérôme Garnier

Alex Van Herk

Isabelle Chaduc

Jérôme Warnant

Adnan Siddiqui

Processes to prepare aqueous polymer dispersions are provided, as well as compositions thereof, which have high solids content (e.g., 50%) with low viscosity. The process uses a selective hydrophilic macro-RAFT agent of formula (I), and is substantially free of surfactants. This process can be used to make latex polymers with good stability, which can be used widely in coatings (e.g., architectural paints, stone paints, industrial coatings, wood coatings, etc.), adhesives, sealants and mastic compositions.

Process for the preparation of high-solids, low-viscosity latex using selective hydrophilic macro-raft agents

The present invention relates to a method of inhibiting or control wax formation during stimulation treatment of a well. More specifically, the present invention proposes the use of aqueous polymer dispersions suitable as wax inhibitor compositions which are compatible with aqueous fracturing fluids.

Polymer dispersions for wax inhibition during stimulation treatment

The present invention relates to a process for preparing a vinylidene chloride polymer composite comprising a vinylidene chloride polymer and clay materials. The process comprises polymerising vinylidene chloride and clay materials and the resulting vinylidene chloride polymer particle is surrounded by a plurality of clay platelets. The clay materials according to the present invention function as a solid stabilizer in the process for preparing a vinylidene chloride polymer composite of the present invention. The present invention further relates to the vinylidene chloride polymer composite obtainable from the process, to use of the vinylidene chloride polymer composite for the preparation of films, and to films prepared therefrom.

Process for the preparation of a vinylidene chloride polymer/clay composite, films obtained therefrom, and use thereof

Process for the preparation of a vinylidene chloride polymer composite comprising a solid particulate encapsulated in the vinylidene chloride polymer. The process comprises providing a dispersion of a solid particulate material in a liquid phase, said dispersion comprising a RAFT/MADIX agent; providing vinylidene chloride and optionally one or more ethylenically unsaturated monomer copolymerizable therewith to said dispersion; and polymerizing vinylidene chloride and said optionally present one or more ethylenically unsaturated monomer under the control of said RAFT/MADIX agent to form polymer at the surface of said solid particulate material.

Process for the preparation of a vinylidene chloride polymer composite

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Paris, France

Pierre-Emmanuel Dufils