发明名称 |
HIGH PERFORMANCE ZIEGLER-NATTA CATALYST SYSTEMS, PROCESS FOR PRODUCING SUCH MgCl<sb>2</sb> BASED CATALYSTS AND USE THEREOF |
摘要 |
Improved Ziegler-Natta catalysts and methods of making the improved catalyst are described. The Ziegler-Natta catalyst is formed using a spherical MgCl2-xROH support, where R is a linear, cyclic or branched hydrocarbon unit with 1-10 carbon atoms and where ROH is an alcohol or a mixture of at least two different alcohols and where x has a range of about 1.5 to 6.0, preferably about 2.5 to 4, more preferably about 2.9 to 3.4, and even more preferably 2.95 to 3.35. The Ziegler-Natta catalyst includes a Group 4-8 transition metal and an internal donor comprising a diether compound. The catalyst has improved activity in olefin polymerization reactions as well as good stereoregularity and hydrogen sensitivity, and may be useful in the production of phthalate-free propylene polymers having a molecular weight distribution (PI(GPC)) in the range from about 5.75 to about 9. |
申请公布号 |
SG11201504141V(A) |
申请公布日期 |
2015.07.30 |
申请号 |
SG11201504141V |
申请日期 |
2013.11.22 |
申请人 |
LUMMUS NOVOLEN TECHNOLOGY GMBH |
发明人 |
DENKWITZ, YVONNE;SCHUSTER, OLIVER;WINTER, ANDREAS |
分类号 |
C08F10/00;C08F4/651;C08F4/654;C08F10/06 |
主分类号 |
C08F10/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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