发明名称 |
METHODS OF MAKING ZIEGLER-NATTA CATALYST COMPOSITIONS FOR PRODUCING POLYETHYLENES WITH A HIGH MOLECULAR WEIGHT TAIL |
摘要 |
Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, and typically an inert filler are combined in a slurrying agent and spray-dried to produce a catalyst precursor in the form of a substantially spherical and porous solid particle. The methods and catalysts of this disclosure can provide ethylene homopolymer and copolymer resins having a high molecular weight tail and a broadened molecular weight distribution as compared to more traditional Ziegler-Natta catalysts. |
申请公布号 |
EP2310424(B1) |
申请公布日期 |
2016.09.21 |
申请号 |
EP20090791235 |
申请日期 |
2009.08.06 |
申请人 |
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY LLC |
发明人 |
WAGNER, BURKHARD;JOB, ROBERT;SCHOEB-WOLTERS, ANN;JORGENSEN, ROBERT |
分类号 |
C08F4/654;C08F4/656;C08F10/00 |
主分类号 |
C08F4/654 |
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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