申请人:Phillips Petroleum Company
公开号:US05565592A1
公开(公告)日:1996-10-15
A method is provided for forming a supported cyclopentadiene-type compound comprising contacting a cyclopentadiene-type compound containing an active halogen with an inorganic support having surface hydroxyl group. Also there is provided a method of preparing a supported metallocene comprising reacting the supported cyclopentadiene-type compound with a transition metal compound under suitable conditions. There is also provided a process for producing bridged cyclopentadiene-type ligands having a bridge having branch that has a terminal vinyl group. Also metallocenes of these ligands are provided. Still further there is provided a process for producing bridged cyclopentadiene-type ligands having a bridge having a branch that has a terminal active halogen. The resulting new ligands and supported metallocenes produced therefrom are also provided. There is further provided supported metallocene catalysts wherein at least two metallocenes of differing effectiveness are both bonded to an inorganic support having surface hydroxy groups. Olefin polymerization employing the inventive bridged supported metallocenes is also provided, as well the resulting polymer products.
提供了一种形成支持的环戊二烯类化合物的方法,包括将含有活性卤素的环戊二烯类化合物与具有表面羟基的无机载体接触。还提供了一种制备支持的茂金属化合物的方法,包括在适当条件下将支持的环戊二烯类化合物与过渡金属化合物发生反应。还提供了一种生产具有具有端乙烯基的支链的桥接环戊二烯类配体的过程。还提供了这些配体的茂金属化合物。此外,还提供了一种生产具有具有端活性卤素的支链的桥接环戊二烯类配体的过程。还提供了由此产生的新配体和支持的茂金属化合物。还提供了支持的茂金属催化剂,其中至少两种效果不同的茂金属均与具有表面羟基的无机载体结合。还提供了利用创新的桥接支持的茂金属进行烯烃聚合的方法,以及所得的聚合物产品。