Fabricless belt

F - Mech Eng,Light,Heat,Weapons – 16 – G

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Details

F16G 1/06 (2006.01) B65G 15/32 (2006.01) F16G 1/08 (2006.01)

Patent

CA 2240333

A fabricless belt of the invention has a drawn polyamide layer (1) as the traction layer to both sides of which is bonded a rubber layer (2, 3). The rubber layers (2, 3) contain at least 1 part by weight of resorcin, phenol, kresol or mixtures thereof in relation to 100 parts by weight of rubber and bond directly on the drawn polyamide layer (1). An advantage of the invention is that no adhesion agent need be applied to the polyamide (1) or rubber layers (2, 3).

L'invention concerne une courroie sans tissu qui comprend pour couche de traction une couche étirée de polyamide (1). Sur les deux faces de la couche étirée de polyamide (1), il est prévu une couche de caoutchouc (2, 3) appliquée en sandwich. Les couches de caoutchouc (2, 3) contiennent au moins une partie en poids de résorcine, de phénol, de crésol ou de mélanges de ces constituants par rapport à 100 parties en poids de caoutchouc et adhèrent directement à la couche étirée de polyamide (1). L'invention présente l'avantage de ne pas nécessiter l'application d'une couche d'agent adhésif sur la couche de polyamide (1) ou sur les couches de caoutchouc (2, 3).

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