| 摘要 |
Catalyst system for high yield synthesis of polyolefins and process for the polymerization of an olefin monomer, or of an olefin monomer and one or more comonomers, to produce a polymer, the process carried out in a polymerization reactor in the presence of a supported olefin polymerization catalyst system produced from catalyst components comprising: 1) a support material component comprising one or more dehydrated support materials; 2) a metallocene complex component comprising one or more metallocene complexes used in a total loading range of from about 0.1 to about 25 mumol of metallocene complex/gram of support material component; 3) an activator component comprising one or more activators used in a range of molar ratios of total moles of activator to total moles of metallocene complex of from about 0.5 to about 2.5; where the catalyst system is used at a catalyst concentration in the range of from about 0.01 to about 6 moles of active catalyst/mole of monomer, and a catalyst efficiency results that is at least 2.4 x 10 7 g polymer/g mol catalyst/hour. |
