Elf Atochem S.a.

Philippe Renouard

Philippe Bussi

Jean-Jacques Flat

Jean-Laurent Pradel

Serge Lorek

Jos&eacute;e Auvray

Jean-Marc Galvez

Francedillaois Fernagut

Polyurethane formulations based on hydroxylated polybutadiene are catalyzed by an N-substituted imidazole derivative. This type of catalysis advantageously replaces the conventional catalysts based on mercury salt. The catalysis does not pose an environmental problem and allows a particular increase in viscosity, permitting an extended pot life and rapid setting.

Imidazole derivative-catalyzed polyurethane formulations based on hydroxylated polybutadiene

Adhesive bonding agent for PVDF, its application as barrier material and

The present invention relates to antistatic and adherent compositions based on polyamide, which can be employed especially for the manufacture of composite materials and articles, such as multilayer pipes and/or conduits for conveying and/or storing hydrocarbons. The compositions contain carbon black and are employed for the production of pipes, containers and drums including:

Antistatic and adherent compositions based on polyamide

Polyblend molding compositions, well adopted for the production of flame-resistant and adhesively integral composite shaped articles, are formulated from particulates of (a) at least one vinyl chloride polymer, (b) at least one polyolefin, and (c) at least one .alpha.-monoolefin terpolymer having a vinyl chloride polymer grafted to the backbone thereof.

Vinyl chloride polymer/polyolefin polyblends having improved rheological

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Brionne, France

Philippe Renouard