Nexans

Lionel Fomperie

Pascal Amigouet

Tushar Mandalia

Denis Cottevieille

Madeleine Prigent

Faïza Bergaya

Fa&iuml;za Bergaya

The invention provides nanocomposites comprising a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites of the invention have good mechanical properties and good heat resistance. The invention also provides cables comprising such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing said nanocomposite.

Nanocomposite based on a bridged clay, and a cable comprising said composite

The composition comprises: an organopolysiloxane; a polymer material resistant to tearing; a first coupling agent compatible with said organopolysiloxane, and having hydroxyl first functional groups; and a second coupling agent compatible with said polymer and having second functional groups suitable for reacting with said hydroxyl first groups. Application to power accessories and cables.

Tear-resistant composition based on silicone rubber for cables and for power accessories

Nanocomposites containing a clay and an organic compound, in which the clay is a clay bridged by a metal compound, preferably iron oxide and/or aluminum oxide. The organic compound is preferably a polymer. The clay-based nanocomposites have good mechanical properties and good heat resistance. The invention also provides cables containing such a nanocomposite, preferably in their sheath or outer coating. Finally, the invention provides a process for producing the nanocomposite.

Nanocomposite based on a bridged clay, and cable comprising said composite

The present invention relates to a composition that is extrudable and cross-linkable in air. The composition that is extrudable and cross-linkable in air comprises a mixture of a copolymer with an ethylenically-unsaturated compound and an unsaturated ester, a hydrolizable silane compound having no ethylenic unsaturation containing functional groups, and a thermoplastic polymer having no functional groups, said functional groups of the ester being selectively reactive with the functional groups of the silane compound. Such a composition is used to fabricate a material for insulating or sheathing a power cable, in particular a medium-voltage cable or a cable for working at a voltage of less than 20 kV. The invention also provides method enabling said composition to be cross-linked and power cables including insulation and/or a sheath containing the composition obtained by the method.

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Auffargis, France

Lionel Fomperie