TOOTHED BELT COMPRISING A RESISTANT LAYER AND RESISTANT LAYER THEREOF

摘要

There is described a toothed belt (1) comprising an elastomeric material body (2), in which a plurality of longitudinal filiform resistant inserts (3) is embedded, and a toothing (4) coated by a coating fabric (5). A resistant layer (8) that increases the resistance to abrasion and thus the resistance to wear of the toothed belt is adhered over the coating fabric (5). The. resistant layer comprises a vulcanisation agent and more than 75% of an elastomer formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group -containing monomer. The resistant layer (8) is advantageously separated from the fabric and is calendered on the fabric itself.