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DUAL CATALYST SYSTEMS FOR PRODUCING POLYMERS WITH A BROAD MOLECULAR WEIGHT DISTRIBUTION AND A UNIFORM SHORT CHAIN BRANCH DISTRIBUTION
DUAL CATALYST SYSTEMS FOR PRODUCING POLYMERS WITH A BROAD MOLECULAR WEIGHT DISTRIBUTION AND A UNIFORM SHORT CHAIN BRANCH DISTRIBUTION
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机译:用于生产具有宽分子量分布和短链支化均匀分布的聚合物的双催化剂体系
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摘要
Disclosed herein are ethylene-based polymers having a melt index less than 50 g/10 min, a ratio of Mw/Mn from 4 to 20, a density from 0.90 to 0.945 g/cm3, and a substantially constant short chain branch distribution. These polymers can be produced using a dual catalyst system containing a boron bridged metallocene compound with a cyclopentadienyl group and an indenyl group, and a single atom bridged metallocene compound with a fluorenyl group.
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机译:本文公开了基于乙烯的聚合物,其具有小于50g / 10min的熔体指数,Mw / Mn的比为4至20,密度为0.90至0.945g / cm 3以及基本上恒定的短链分支分布。这些聚合物可以使用包含具有环戊二烯基和茚基的硼桥连的茂金属化合物和具有芴基的单原子桥连的茂金属化合物的双催化剂体系来生产。
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