发明名称
摘要 Process with two or more steps for the preparation in suspension of mixtures of ethylene-propylene (EPM) elastomer homopolymers or ethylene-propylene-diene (EPDM) elastomer terpolymers in the presence of a catalytic system essentially consisting of a compound of Vanadium and a cocatalyst essentially consisting of an Aluminium alkyl and in the presence of an activator, the above process being characterised in that: a) in the first step a first polymerisation of the monomers is carried out in the presence of the Vanadium based catalyst; b) in the second or subsequent steps further polymerizable monomers and activator are added to the suspension of the polymer obtained in step (a). <IMAGE>
申请公布号 ITMI960692(D0) 申请公布日期 1996.04.11
申请号 IT1996MI00692 申请日期 1996.04.11
申请人 发明人
分类号 C08F4/76;C08F2/14;C08F2/18;C08F4/68;C08F210/06;C08F210/16;C08F210/18 主分类号 C08F4/76
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