Organo-Al-chloride catalyzed poly-n-butenes process

Details Organo-Al-chloride catalyzed poly-n-butenes process Organo-Al-chloride catalyzed poly-n-butenes process

1988-10-26

1990-08-28

Pal, Asok

Chemistry of hydrocarbon compounds

Compound or reaction product mixture

Polymer of indefinite molecular weight

585511, 585522, 585532, C07C 218

Patent

active

049527398

ABSTRACT:
Poly-n-butene is prepared from a mixed C.sub.4 hydrocarbon feedstream containing less than about 5 wt. % isobutylene using an organo-aluminum chloride-HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polymer product having a very narrow molecular weight distribution is obtained over the M.sub.n range of 300 to 900. Detergents derived from this poly-n-butene exhibit substantially improved performance in lubricating oil compositions.

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