Patent ID: 6403738
Filing Date: 2002-06-11
Classification: C07C,C07D,C07F,C08F

Abstract:
A process for the polymerization of one or more olefins of the formula H2C&boxH;CHR1 and optionally one or more olefins of the formula H2C&boxH;CHR2, comprising, contacting said olefins with a complex containing a transition metal selected from the group consisting of palladium, nickel, titanium, zirconium, scandium, vanadium, chromium, iron, cobalt, and a rare earth metal and a ligand of the formula which is an active polymerization catalyst, wherein:each R1 is independently hydrogen or alkyl; each R2 is independently substituted alkyl or â€”CO2R50; A and E are each independently oxygen, sulfur, phosphorous or nitrogen; R3 and R8 are each independently hydrocarbyl or substituted hydrocarbyl provided that the carbon atom bound to the nitrogen atom is bound to at least two other carbon atoms; R4, R5, R6 and R7 are each independently hydrocarbyl or substituted hydrocarbyl; Ar1 and Ar2 are each independently aryl or substituted aryl; R9 and R10 are each independently hydrocarbyl or substituted hydrocarbyl; R50 is hydrocarbyl or substituted hydrocarbyl; and provided that: when said ligand is (II) or (III) said transition metal is nickel; when H2C&boxH;CHR2 is present a palladium complex is present; the members of any one or more of the pairs R4 and R5, R6 and R7, R4 and R6, and R5 and R7 taken together may form a ring; when said transition metal is palladium, A and E are each independently oxygen, phosphorous or nitrogen; when A is oxygen or sulfur, R5 is not present; and when E is oxygen or sulfur, R7 is not present.