Novel electron donors

Details Novel electron donors Novel electron donors

C - Chemistry, Metallurgy

07

C

C07C 43/205 (2006.01) C07C 43/225 (2006.01) C07C 205/37 (2006.01) C07F 7/08 (2006.01) C07F 7/28 (2006.01) C08F 4/649 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2255801

-20- Novel compositions of the structure Image wherein R1 and R2 are each an alkoxy group which may be the same or different and have from one to ten carbon atoms, and R3-R6 are each individually, hydrogen, hydrocarbyl, hydrocarboxy, nitro, a silyl group or a halogen, with the provisos that if either R1 or R2 are methoxy, then at least one of R3-R6 is not hydrogen, if R1 and R2 are both ethoxy, then at least one of R3-R6 is not hydrogen, and R1 and R2 cannot both be methoxy, are taught herein, which may be used as electron donors, either internal or external, for catalysts used in the polymerization of olefins.

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