| 摘要 |
<p>A make-up catalyst of at least one metallic component of a bimetallic catalyst component is used in conjuction with a bimetallic catalyst to control the proportion of weight fractions in broad or bimodal molecular weight distribution olefin resin product. The bimetallic catalyst produces broad or bimodal molecular weight distribution polyolefin resin whose composition depends on the ratio of the concentration of the two catalyst components producing the HMW/LMW components. The make-up catalyst consisting of single metal component is added in proportion necessary to make-up the deficiencies in the amount to the HMW/LMW component. The type of make-up catalyst added depends on whether increase of the HMW or LMW component produced by the bimetallic catalyst is sought.</p> |
