Patent ID: 7749118

Claim:
A method of providing a toothed belt for use in an oil-wet environment, the method comprising: providing a toothed belt and adapting said toothed belt for use in direct contact with oil or at least partially immersed in oil, said belt comprising a body, a number of teeth extending from at least one first surface of said body, said teeth being coated by a first fabric, said fabric being externally coated with a resistant layer, said resistant layer comprising a fluorinated plastomer, a first elastomeric material, and a vulcanisation agent, said fluorinated plastomer present in said resistant layer in a larger quantity than said first elastomeric material, said body comprising a compound based on a second elastomeric material formed of a copolymer obtained from a dienic monomer and a monomer containing nitrile groups, and said nitrile groups are in percentage between 33% and 49% in weight with respect to the weight of said copolymer.