Polybutene process

Details Polybutene process Polybutene process

C - Chemistry, Metallurgy

08

F

402/583, 260/706

C08F 2/02 (2006.01) C07C 2/30 (2006.01) C07C 11/02 (2006.01) C08F 110/08 (2006.01)

Patent

CA 2002270

Polybutene is prepared from a mixed C4 hydrocarbon feedstream using an organo-aluminum/HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polybutene product having a very narrow molecular weight distribution is obtained over the Mn range of 700 to 3,000. Dispersants derived from this polybutene exhibit substantially improved performance in lubricating oil compositions.

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