Abstract:
A method comprising introducing a polymerization feed comprising an α-olefin, a diluent, and a diene to a polymerization system, under polymerization conditions, whereby a polymer product is produced, wherein the diene is present at a level in the range of from about 1 ppm to about 1000 ppm based on the diluent.
Abstract:
A catalyst system comprising a half-sandwich chromium complex, an activator support and an optional cocatalyst. A compound of formula Cp′Cr(Cl)2(Ln), where Cp′ is η5-C5H4CH2CH2CH═CH2 and Ln is pyridine, THF or diethylether. A compound of formula Cp″Cr(Cl)2(Ln), where Cp″ is η5-C5H4C(Me)2CH2CH2CH═CH2 and Ln is pyridine, THF or diethylether.