Arkema France

Centre National De La Recherche Scientifique

Annett Linemann

Philippe Blondel

Thierry Briffaud

Thibaut Montanari

Pierre Nogues

Nicolas Amouroux

Helene Egret

Henri Decraemer

Ludwik Leibler

Manuel Hidalgo

Francois-Genes Tournilhac

Corinne Soulie-Ziakovic

François-Genes Tournilhac

Philippe Cordier

Héléne Egret

The present invention relates to branched polyamides comprising unsaturated ends comprising: The invention also relates to thermofusible adhesives comprising these branched polyamides comprising unsaturated ends, and to the use of these branched polyamides comprising unsaturated ends in sheathing electrical cables.

Branched polyamides comprising unsaturated ends

The invention relates to a multilayer structure in which the inner layer is in contact with petrol or diesel fuel and comprising, in succession from the outside inwards:

Flexible semicrystalline polyamides

The invention concerns a polymer material consisting of macromolecular chains bound by hydrogen bonds, wherein: the macromolecular chains consist of a polymer skeleton whereon is fixed by at least one covalent bond a modifying agent, the modifying agent comprising, assembled in a common molecule, one or more associative groups capable of being bound by hydrogen bonds and one or more reactive groups capable of forming covalent bonds with the polymer skeleton, at least one of the associative groups of the modifying agent is an imidazolidone heterocycle, the macromolecular chains bear on average, 1 to 10 imidazolidone groups per chain. The average number of imidazolidone groups to be introduced into the macromolecular chains depends both on the average mass of said chains and the final properties desired for the material.

Polymer material containing chains bearing imidazolidone functions

The invention relates to a composition, and structures having a layer made of said composition, in which the composition is, by weight, the total being 100%:

The present invention relates to a flexible semiaromatic polyamide composition with a low moisture uptake, made up by weight, the total being 100:

Flexible semiaromatic polyamides with a low moisture uptake

The present invention relates to a flexible semiaromatic polyamide composition with a low moisture uptake comprising, by weight, the total being 100:

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Nassandres, France

Annett Linemann