Title:
【発明の名称】改良された有機アルミニウム塩化物触媒ポリ―n―ブテン製造法
Document Type and Number:
Japanese Patent JP2670868
Kind Code:
B2
Abstract:
Poly-n-butene is prepared from a mixed C4 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 Mn range of 300 to 900. Detergents derived from this poly-n-butene exhibit substantially improved performance in lubricating oil compositions.
Inventors:
Frank Jouen Yeah Chen
Application Number:
JP27511289A
Publication Date:
October 29, 1997
Filing Date:
October 24, 1989
Export Citation:
Assignee:
Exxon Chemical Patents Incorporated
International Classes:
C07B61/00; C07C2/22; C07C11/02; C08F10/08; C08F240/00; B01J31/14; C10G50/02; (IPC1-7): C07C11/02; B01J31/14; C07C2/22
Domestic Patent References:
| JP5877827A | ||||
| JP58201730A |
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)