PREPARATION OF LLDPE HAVING CONTROLLED XYLENE SOLUBLES OR HEXANE EXTRACTABLES
Disclosed is a method for making LLDPE grades having different xylene solubles or hexane extractables with the same Ziegler-Natta catalyst by varying the amount of alkylaluminum used for polymerization. The method comprises copolymerizing ethylene with a C3-10 α-olefin in the presence of a Ziegler-N...
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Main Authors | , , , , |
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Format | Patent |
Language | English French German |
Published |
21.03.2018
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Subjects | |
Online Access | Get full text |
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Summary: | Disclosed is a method for making LLDPE grades having different xylene solubles or hexane extractables with the same Ziegler-Natta catalyst by varying the amount of alkylaluminum used for polymerization. The method comprises copolymerizing ethylene with a C3-10 α-olefin in the presence of a Ziegler-Natta catalyst, an alkylaluminum, and an electron donor; determining the dependency of the xylene solubles or hexane extractables on the alkylaluminum/electron donor ratio; and adjusting the alkylaluminum/electron donor ratio to achieve a desired xylene solubles or hexane extractables. |
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Bibliography: | Application Number: EP20110758289 |