A p-aromatic polyamide vent duct and its application, and...

Details A p-aromatic polyamide vent duct and its application, and... A p-aromatic polyamide vent duct and its application, and...

E - Fixed Constructions

21

F

E21F 1/04 (2006.01) C08L 77/06 (2006.01) E21F 17/02 (2006.01) F16L 59/00 (2006.01)

Patent

CA 2682270

A ventilation pipe includes a woven layer(10) of para-aramid fiber, a polymer layer or a polymer mixture layer (20) which is coated at the inside and/or outside of the woven layer(10). Said ventilation pipe has a high tensile strength, tear strength, flexility and flame-retardant property. It can be applied to mining industry.

L'invention concerne un tuyau de ventilation comprenant une couche tissée (10) de fibres para-aramides, une couche polymère d'un mélange de polymères (20) qui est appliquée sur la face interne et/ou externe de ladite couche tissée (10). Ce tuyau de ventilation présente une résistance à la traction et à la déchirure ainsi qu'une flexibilité élevées et est en outre non inflammable. Le tuyau de ventilation selon l'invention peut être utilisé dans l'industrie minière.

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