FLUORINE-CONTAINING THERMOPLASTIC ELASTOMER COMPOSITION

摘要

The invention pertains to a thermoplastic vulcanizate fluorine-containing composition [vulcanizate (C)], comprising a continuous thermoplastic fluoropolymer phase and a dispersed vulcanized fluoroelastomer phase, said composition comprising: - at least one thermoplastic fluoropolymer [polymer (F)], said polymer (F) comprising (j) from 40 to 60% by moles of recurring units derived from ethylene (E); (jj) from 60 to 40% by moles of recurring units derived from at least one of chlorotrifluoroethylene (CTFE) and tetrafluoroethylene (TFE); and (jjj) from 0.5 to 10% by moles of recurring units derived from of at least one (per)fluoroalkylvinylether of formula CX2=CX-ORf, wherein each of X, equal to or different from each other, is independently H or F (preferably F); and Rf is a C1-C12 (per)fluoroalkyl group or a C1-C12 (per)fluoro-oxy-alkyl group comprising one or more than one catenary oxygen atoms [monomer (V)], with % by moles being referred to the total moles of recurring units of the polymer (F); and - at least one (per)fluoroelastomer [elastomer (A)].