发明授权
- 专利标题: Process for the in-situ preparation of single-site transition metal catalysts and polymerization process
- 专利标题(中): 单位过渡金属催化剂原位制备工艺及聚合工艺
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申请号: US09318009申请日: 1999-05-25
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公开(公告)号: US06291386B1公开(公告)日: 2001-09-18
- 发明人: Shaotian Wang
- 申请人: Shaotian Wang
- 主分类号: B01J3100
- IPC分类号: B01J3100
摘要:
The invention relates to a process for the in-situ preparation of alkylated single-site transition metal catalysts by contacting a precatalyst which comprises halogen, alkoxy or amido group, with an alkylating agent in the polymerization system. The precatalyst, which is produced prior to introducing into the polymerization system, is obtained by contacting a transition metal complex and boron-containing ionizing agent, optionally, with a support.