发明公开
- 专利标题： PROCESS FOR THE POLYMERIZATION OF ETHYLENE, AND ETHYLENE POLYMERS HAVING BROAD MOLECULAR WEIGHT DISTRIBUTION AND LONG- CHAIN BRANCHING
- 专利标题（中）： PROCESS乙烯和乙烯聚合物的宽分子量分布和长链支化聚合
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申请号： EP09760774.1申请日： 2009-11-30
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公开(公告)号： EP2356155A1公开(公告)日： 2011-08-17
- 发明人: CIACCIA, Eleonora , VITTORIAS, Iakovos , MIHAN, Shahram , LUKESOVA, Lenka , LILGE, Dieter , HERRARA SALINAS, Maclovio , MEIER, Gerhardus , MANNEBACH, Gerd
- 申请人： Basell Polyolefine GmbH
- 申请人地址： Brühler Strasse 60 50389 Wesseling DE
- 专利权人： Basell Polyolefine GmbH
- 当前专利权人： Basell Polyolefine GmbH
- 当前专利权人地址： Brühler Strasse 60 50389 Wesseling DE
- 优先权： EP08020828 20081201
- 国际公布： WO2010063432 20100610
- 主分类号： C08F10/02
- IPC分类号： C08F10/02 ; C08F4/70 ; C08F4/655
摘要：
New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5s
-1 , at 150°C), branching index g' equal or lower than 0.9 (at Mw of 2⋅10
6 g/mol). The polymers are prepared by using a mixed catalyst system comprising a polymerization catalyst based on a late transition metal component having a tridentate ligand, and a Ziegler polymerization catalyst annealed at a temperature higher than 100°C, for a time of at least 10 minutes.
-1 , at 150°C), branching index g' equal or lower than 0.9 (at Mw of 2⋅10
6 g/mol). The polymers are prepared by using a mixed catalyst system comprising a polymerization catalyst based on a late transition metal component having a tridentate ligand, and a Ziegler polymerization catalyst annealed at a temperature higher than 100°C, for a time of at least 10 minutes.
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