Arkema France

Ntn Corporation

Sylvain Benet

Benoît Brule

Thibaut Montanari

Philippe Blondel

Masaki Egami

Nicolas Dufaure

Kouya Oohira

Samuel Devisme

Yves Deyrail

Alexandre Vermogen

Fabrice Montezin

Yoshihide Himeno

Zhenzhong Li

Shinya Matsuno

A tube connector made from a polyamide composition, the polyamide composition including at least one first polyamide A having an average number of carbon atoms per nitrogen atom Cand at least one second polyamide B having an average number of carbon atoms per nitrogen atom C, wherein C&#x2264;8.5 and C&#x2265;7.5, and wherein C&#x3c;C. The composition may include a third polyamide C having an average number of carbon atoms per nitrogen atom C, wherein C&#x2264;C.

Tube connectors based on a polyamide composition

The present invention relates to the use of a multi-layered structure for the manufacture of gas conducts, namely for methane. The multi-layered structure comprises, from the inside to the outside, the following successive layers: a layer containing at least one polyamide, wherein the polyamide is chosen from PA11, PA12 and an aliphatic polyamide obtained from condensation reaction of an aliphatic diamine having 6 to 18 carbon atoms and an aliphatic diacid having 9 to 18 carbon atoms; optionally, a binding 2 layer; and a layer 3 chosen from an EVOH layer, a layer formed of a mixture of polyamide and a polyolefin with a polyamide matrix, a layer of PA6, Pa6-6, MXD.6 or MXD.10 and a layer of semi-aromatic copolyamide, the layer 3 being intended to be in contact with the transported gas.

Use of multi-layered structure for the manufacture of gas conducts, namely for methane

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Bernay, France

Sylvain Benet