Frictional power transmission belt and process for producing same

A frictional power transmission belt comprising an extensible layer forming a belt back surface, a compressive rubber layer formed on one surface of the extensible layer and frictionally engaging at the lateral surface thereof with pulleys, and a tension member embedded between the extensible layer and the compressive rubber layer along a belt length direction,

• wherein all of the lateral surface of the compressive rubber layer that is to be frictionally engaged with pulleys is coated with a fiber/resin mixture layer that comprises a resin component and heat-resistant fibers having a softening point or a melting point higher than a vulcanization temperature in a mixed state, and the heat-resistant fibers contain a fiber embedded so as to extend from the fiber/resin mixture layer to the compressive rubber layer, and
• wherein at least some of the heat-resistant fibers are exposed out of the surface of the fiber/resin mixture layer.