A process for the production of a propylene based polymer, the process comprising the following steps: (a) a first polymerization stage comprising homopolymerizing propylene or copolymerizing propylene and at least one alpha-olefin in the presence of an alpha-olefin polymerization catalyst whereby to...http://www.google.es/patents/US6770714?utm_source=gb-gplus-sharePatente US6770714 - Process for producing propylene based polymer compositions
Process for producing propylene based polymer compositions
