A process for the gas-phase catalytic polymerisation carried out in two interconnected polymerisation zones, to which one or more monomers are fed in the presence of a catalyst under polymerisation conditions and from which the produced polymer is discharged. The growing polymer particles flow through...http://www.google.es/patents/US6689845?utm_source=gb-gplus-sharePatente US6689845 - Process and apparatus for the gas-phase polymerization
Process and apparatus for the gas-phase polymerization