发明名称 |
METHOD TO PREPARE ETHYLENE COPOLYMERS |
摘要 |
Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a second catalyst compound that are co-supported to form a commonly supported catalyst system. The first catalyst compound includes a compound with the general formula (C5HaR1b)(C5HcR2d)HfX2. The second catalyst compound includes at least one of the following general formulas: In both catalyst systems, the R groups can be independently selected from any number of substituents, including, for example, H, a hydrocarbyl group, a substituted hydrocarbyl group, or a heteroatom group, among others. |
申请公布号 |
EP3105262(A1) |
申请公布日期 |
2016.12.21 |
申请号 |
EP20150708625 |
申请日期 |
2015.02.10 |
申请人 |
Univation Technologies, LLC |
发明人 |
RIX, Francis C.;LUE, Ching-Tai;HARLAN, C. Jeff;McCULLOUGH, Laughlin G. |
分类号 |
C08F210/02;C08F2/34;C08F4/6592 |
主分类号 |
C08F210/02 |
代理机构 |
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代理人 |
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地址 |
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