公开(公告)号：US06908876B2

公开(公告)日：2005-06-21

申请号：US10414615

申请日：2003-04-16

Applicant: Muhammad Atiqullah ,  Akhlaq Moman ,  Muhammad Naseem Akhtar ,  Atieh Abu-Raqabah ,  Syriac J. Palackal ,  Muhammad A. Al-Saleh ,  Faizur Rahman ,  Muhammad Ibrahim ,  Javaid H. Khan

Inventor： Muhammad Atiqullah ,  Akhlaq Moman ,  Muhammad Naseem Akhtar ,  Atieh Abu-Raqabah ,  Syriac J. Palackal ,  Muhammad A. Al-Saleh ,  Faizur Rahman ,  Muhammad Ibrahim ,  Javaid H. Khan

IPC: B01J31/00 ,  C08F20060101 ,  C08F2/00 ,  C08F4/44 ,  C08F4/64 ,  C08F4/642 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16

CPC classification number: C08F10/00 ,  C08F4/65925 ,  C08F110/02 ,  C08F210/16 ,  Y10S526/943 ,  C08F4/65916 ,  C08F4/65912 ,  C08F2500/12 ,  C08F2500/03 ,  C08F210/14

Abstract: The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.

Abstract translation: 本发明涉及一种用于烯烃聚合的负载催化剂体系，其包括至少一种茂金属组分和二氧化硅，铝或含有羟基的聚合物的无机氧化物的载体。 载体用有机锗和/或有机锡化合物改性。 本发明的催化剂体系产生最小的反应器结垢，具有优异的生产率和良好的氢响应性。 本发明还涉及制备催化剂体系的方法以及使用催化体系（任选地少量的铝氧烷助催化剂）进行烯烃的淤浆/悬浮或气相聚合的方法。