1113028-A1 is referenced by 2 patents and cites 4 patents.

A process for production of an ethylene-propylene-diene-methylene (EPDM) tetrapolymer having long chain branching is described. The process comprises the step of polymerizing a monomer mixture comprising ethylene, propylene, a first diolefin monomer containing one polymerizable double bond (preferably ENB) and a second diolefin containing two polymerizable double bonds (preferably VNB) in the presence of a catalyst system. The catalyst system comprises: a catalyst comprising a compound containing vanadium +3 with the proviso that the compound does not comprise a halogen directly bound to the vanadium; a halogenated organoaluminum cocatalyst having a halogen to aluminum molar ratio in the range of from about 1 to about 2; and an activator.; The branched polymer product of the present process exhibits a molecular weight distribution of less than about 3.5 and improved rheological properties and enhanced processability characteristics.

Title
Process for production of olefin polymer with long chain branching
Application Number
EP20000126413 20001205
Publication Number
1113028 (A1)
Application Date
December 5, 2000
Publication Date
July 4, 2001
Inventor
Bender Harald
CA
Padliya Dilipkumar
CA
Zahalka Hayder A
CA
Assignee
Bayer
CA
IPC
C08F 04/68
C08F 210/18
C08F 210/00
C08F 04/00
C08F 210/18
C08F 04/68
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