Process for making a polyalkenyl derivative of an...

Details Process for making a polyalkenyl derivative of an... Process for making a polyalkenyl derivative of an...

C - Chemistry, Metallurgy

08

F

C08F 8/46 (2006.01) C07D 307/60 (2006.01) C07C 57/145 (2006.01) C08F 10/10 (2006.01)

Patent

CA 2275224

A polyalkenyl derivative of an unsaturated acidic reagent prepared by the process of reacting a polyalkene having a Mn of at least 300 with an unsaturated acidic reagent at elevated temperatures in the absence of a strong acid until at least 25% of the polyalkene is converted to a polyalkenyl derivative of an unsaturated acidic reagent, continuing the reaction of the polyalkene with an excess of the unsaturated acidic reagent at elevated temperatures in the presence of a strong acid to convert at least some of the unreacted polyalkene to additional polyalkenyl derivative of an unsaturated acidic reagent, and removing the unreacted unsaturated acidic reagent.

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