(CO)POLYMERIZATION PROCESS IN SUSPENSION FOR PREPARING HYDROGEN CONTAINING THERMOPLASTIC FLUOROPOLYMERS

摘要

The invention relates to a (co)polymerization process in suspension for preparing hydrogen containing thermoplastic fluoropolymers, such as for instance ethylene/chlorotrifluoroethylene or ethylene/tetrafluoroethylene copolymers, or vinylidenefluoride homopolymers or copolymers, wherein bisdichlorofluoroacetylperoxide (CFCl2-CO-O)2 (DCFAP) is used as polymerization initiator. From such process products endowed with high thermal stability, remarkably higher than that obtainable using bis-trichloroacetylperoxide (TCAP), are obtained.