There is provided a process for the copolymerisation of propylene with at least one C4-20 α-olefin or C4-20 diene in a reaction medium in the presence of a catalyst system at a temperature of greater that 80° C. or at a temperature and pressure above the critical temperature and pressure of the reaction...http://www.google.es/patents/US7038000?utm_source=gb-gplus-sharePatente US7038000 - Process for preparing propylene copolymers
