Patent ID: 7402637
Filing Date: 2008-07-22
Classification: C08F

Abstract:
1. A method for producing a poly-1-olefin, comprising (A) subjecting a suspension of magnesium alkoxide powder having a mean particle size, expressed as the d (B) vigorously stirring, using a stirring element, or shearing, using a high-performance shearing tool, the suspension of a magnesium alkoxide powder in an inert hydrocarbon in which the magnesium alkoxide powder are insoluble to obtain a gelatinous dispersion of the magnesium alkoxide; (C) reacting the gelatinuous dispersion of the magnesium alkoxide with a transition-metal compound of titanium, zirconium, vanadium or chromium in an inert hydrocarbon to produce a component (a); (D) forming a catalyst which consists of the product of the reaction of the magnesium alkoxide with the transition-metal compound and an organometallic compound; and (E) polymerization of a 1-olefin of the formula R