Patent ID: 9096740
Filing Date: 2015-08-04
Classification: C08F,C08K,C08L,F16G

Abstract:
1. An oil resistant toothed belt comprising a body and a number of teeth extending from at least one first surface of said body, said teeth being coated with a fabric, said toothed belt being in direct contact with or partially immersed in oil, and said body comprising an elastomeric composition comprising a branched polymer distributed throughout the entire volume of the body of the belt and obtained from a polymer selected from the group consisting of NBR, HNBR, XHNBR, EP(D)M, and maleized EPDM, and from a compound adapted to form, by means of a chemical reaction, a bond with said polymer to form a side chain, the compound comprising a group Y represented by formula Y=F(CF 2 CF 2 ) m wherein m is in the range between 2 and 20 and a group R, which has a functional group adapted to react with said polymer wherein said group R is selected from the group consisting of a double bond, a triple bond, an alcoholic functional group, a carboxylic functional group, an esteric functional group, an acrylic functional group, and a methacrylic functional group.