The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1999
Filed:
Dec. 13, 1995
Applicant:
Inventors:
Tze-Chiang Chung, State College, PA (US);
Ruidong Ding, State College, PA (US);
Ronald L Shubkin, Baton Rouge, LA (US);
Assignee:
BP Amoco Corporation, Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
585511 ; 585510 ; 585517 ; 585520 ; 585521 ; 585530 ;
Abstract
The use of novel heterogeneous catalyst complexes as catalysts for oligomerizing alpha-olefins is disclosed. The complexes are formed from (i) a solid olefin polymer having a linear backbone and a plurality of pendant omega-hydroxyalkyl groups, (ii) an organomagnesium halide, and (iii) a boron trihalide, preferably BF.sub.3. The complexes can be recovered and reused repeatedly in batch-type operations and can be used for long periods of time in continuous or semi-continuous operations without replenishment of their boron trifluoride content.