C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 110/08 (2006.01) C08F 10/08 (2006.01)
Patent
CA 2078769
2078769 9114719 PCTABS00007 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.
Borden Ladner Gervais Llp
Chen Frank J.
Exxon Chemical Patents Inc.
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