Polyethylene and process of production thereof

Details Polyethylene and process of production thereof Polyethylene and process of production thereof

C - Chemistry, Metallurgy

08

F

402/624, 402/629

C08F 110/02 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2037618

Polyethylene having from 1 to 60 methyl branches and from 1 to 60 hexyl or higher branches per 1000 carbon atoms, a g-value of from 0.5 to 0.9, a limiting viscosity [p] of from 0.005 to 20.0 dl/g as measured at 140°C in o- dichlorobenzene, and not more than 0.2 of terminal double bond in 1000 carbon atoms, and process for producing the same, comprising polymerizing ethylene in the presence of a catalyst composed of a coordination nickel compound of bivalent nickel, an organoaluminum compound, and an amino- bis(imino)-phosphorane represented by the general formula (I) below: Image where R1, R2. R3, and R4 may be the same or different mutually and are respectively n-alkyl, isoalkyl, aryl, or trialkylsilyl.

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