摘要:
CATALYTIC FOR THE LOW PRESSURE POLYMERIZATION AND COPOLYMERIZATION OF OLEFINS ARE PROVIDED WHICH COMPRISES AN ACTIVATOR WHICH IS AN ORGANOMETALLIC COMPOUND AND A SOLID PRODUCT OBTAINED BY REACTING A SUPPORT COMPRISED OF A SOLID BIVALENT METAL COMPOUND WITH AN ORGANOMETALLIC COMPOUND, SEPARATING THE RESULTING SOLID PRODUCT, AND THEN REACTING THIS PRODUCT WITH A HALOGENATED DERIVATE OF A TRANSITION METAL. THE ORGANOMETALLIC COMPOUND REACTED WITH THE SUPPORT MAY BE THE SAME OR DIFFERENT FROM THE ACTIVATING COMPOUND. THE POLYMERIZATION AND COPOLYMERIZATION OF OLEFINS IS CARRIED OUT USING THESE CATALYST.
摘要:
In the polymerization or co-polymerization of olefins having the general formula CH2 CHR, the use of a catalyst formed of magnesium compounds and compounds of transition metals of subgroups IVa, Va and VIa of the periodic table of elements prepared by the reaction of organo-magnesium compounds, monohalogenated hydrocarbons and halogenated organic derivatives of the transition metals in a valency of at least 4 and which may include a co-catalyst in the form of an organo-metallic compound of the metals of groups II and III of the periodic table of elements.