COMPOSITIONS USEFUL FOR OLEFIN POLYMERIZATION AND PROCESSES AND THEREWITH,申请号CA19952154823-传众专利搜索

COMPOSITIONS USEFUL FOR OLEFIN POLYMERIZATION AND PROCESSES AND THEREWITH

申请公布号：CA2154823(A1)

申请号：CA19952154823

申请日期：1995.07.27

申请公布日期：1996.03.17

申请人：

PHILLIPS PETROLEUM COMPANY

发明人：PETTIJOHN, TED M

分类号：C08F4/642;C08F4/60;C08F4/626;C08F4/646;C08F4/659;C08F4/6592;C08F10/00;C08F110/02

主分类号：C08F4/642

摘要：A composition, which can be used as catalyst for producing an olefin polymer having a multimodal molecular weight distribution, is provided that comprises a transition metal-containing catalyst, a metallocene, and a boroncontaining organoaluminoxane, wherein each component of the composition is present in an effective amount so that an olefin polymer having a multimodal molecular weight distribution can be produced using the composition as catalyst, preferably in the presence of a cocatalyst. Also provided is a process for preparing the composition which comprises: (1) contacting a transition metal-containing catalyst with an organoaluminoxane dispersed in a solvent to form a slurry; (2) combining the slurry with a boroxine to prepare a combination of a transition metal-containing catalyst and boron-containing organoaluminoxane; and (3) contacting the combination with a metallocene. Further provided is a process for polymerizing an olefin to prepare an olefin polymer using the composition.