Patent ID: 6372682
Filing Date: 2002-04-16
Classification: C07C,C07D,C07F,C08F

Abstract:
An olefin polymerization catalyst comprising (a) a Group 8-10 transition metal, (b) a ligand of the formula IX, XIII, XIV, or XV, and optionally (c) a Bronsted or Lewis acid, wherein R3 is hydrocarbyl or substituted hydrocarbyl;R4 is H, hydrocarbyl, substituted hydrocarbyl, or silyl; R5 is hydrocarbyl or substituted hydrocarbyl; Z is O or S; U is â€”OR10, â€”SR10, â€”SeR10 or â€”NR10R8, wherein R10 and R8 are each independently selected from the group consisting of H, hydrocarbyl, substituted hydrocarbyl, and silyl, and in addition R10 R8 may collectively form a ring with nitrogen; and G1 is hydrocarbyl or substituted hydrocarbyl and may comprise a carbocyclic or heterocyclic ring, thereby forming a 5-membered or 6-membered heterocyclic ring comprising G1, C, and N.