"The process of claim 70 wherein the transition metal compound is selected from the group consisting of TiX4, Ti(OR3)x Xx-4, VOX3, VX4, ZR(OR3)x Xx-4, and mixtures thereof, wherein X is chloride or bromide, R3 is cyclopentadienyl, an alkyl, a cycloalkyl or an alkenyl group including from one to about ten carbon atoms, or an aryl or alkaryl group including from five to about 20 carbon atoms, and x i" . . . . . . . .