BELT HAVING A MULTILAYER IMPREGNATED TEXTILE OVERLAY

摘要

The invention relates to a power transmission belt having a base made of polyurethane (30) and a textile overlay (1) and comprising a first coating of a first thermoplastic material (22 ) on the surface (11) of the textile overlay (1) which first coating forms an impregnation has a melting temperature from 80 °C to approximately 145°C and penetrates at least partially into the textile and comprising a second coating (26) of a second thermoplastic material on the first coating which second coating has a higher melting point. The coatings can be applied successively to the textile overlay (1) before the casting of the polyurethane or can be overlaid as individual films or as multi layer film and applied to the textile overlay by heat and pressure. The coating acts to reduce abrasion and prevents the through passage of the belt polyurethane.