METHODS FOR PRODUCING POLYMERS WITH CONTROL OVER COMPOSITION DISTRIBUTION
摘要
Methods for controlling a melt viscosity of a polyolefin, controlling comonomer distribution of a polyolefin, achieving a targeted melt viscosity of a polyolefin, and films made from such polyolefins are provided. The methods include contacting an olefin monomer and at least one comonomer with a catalyst system in the presence of a condensable fluid comprising a saturated hydrocarbon having from 2 to 8 carbon atoms. The catalyst system in one embodiment includes a hafnium metallocene catalyst component.
申请公布号
WO2006007046(A3)
申请公布日期
2006.07.06
申请号
WO2005US15568
申请日期
2005.05.04
申请人
UNIVATION TECHNOLOGIES, LLC;SZUL, JOHN, F.;FARLEY, JAMES, M.