Patent Number: 7,101,940

Title: Chemical compound, method for the production thereof and its use in catalyst systems for producing polyolefins

Abstract: The invention relates to a chemical compound of formula (I), wherein M.sup.1 represents an element selected from main groups II, III or IV of the periodic table of elements; x is equal to 1, 2, 3 or 4; y is equal to 2, 3 or 4, and; A represents a cation of main group V of the periodic table of elements; R.sup.1 is the same or different and represents a branched or unbranched linear or cyclic C.sub.1 C.sub.40 group that contains carbon; R.sup.2 is the same or different and represents a branched or unbranched linear or cyclic C.sub.1 C.sub.40 group that contains carbon; R.sup.3 represents a branched or unbranched linear or cyclic C.sub.1 C.sub.40 group that contains carbon, and; R.sup.4 represents a hydrogen atom; whereby R.sup.2 and R.sup.3 are always different from one another ##STR00001##

Inventors: Schottek; Jorg (Frankfurt, DE), Gregorius; Heike (Koblenz, DE), Fischer; David (Breunigweiler, DE), Kuellmer; Iris (Frankfurt, DE)

Assignee: Basell Polyolefine GmbH

International Classification: C08F 4/52 (20060101); B01J 31/14 (20060101); C07C 211/63 (20060101); C07F 5/02 (20060101); C08F 4/76 (20060101)

Expiration Date: 9/05/02018