Ethylene elastomer compositions

Details Ethylene elastomer compositions Ethylene elastomer compositions

2011-05-17

2011-05-17

Lu, Caixia (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S114000, C526S160000, C526S348000, C526S943000, C525S232000, C525S240000

Reexamination Certificate

active

07943711

ABSTRACT:
In a process for producing an elastomer composition, ethylene, at least one alpha-olefin, and at least one diene is contacted with a catalyst system comprising at least two metallocene catalyst compounds and a non-coordinating anion activator wherein one of the metallocene catalyst compounds is an indenyl complex having the general formula: (In1R1m)R3(In2R2p)MXq, and at least one metallocene catalyst compound comprises a compound having the general formula:wherein M is a transition metal from Group 3, 4, or 5 of the Periodic Table of the Elements and other deatures defined herein.

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