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:
May. 16, 2000
Filed:
Apr. 02, 1998
Applicant:
Inventor:
Alison Margaret Bennett, Wilmington, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526161 ; 5261691 ; 526171 ; 526172 ; 526351 ; 585527 ; 585531 ;
Abstract
Propylene may be oligomerized by contact with cobalt complexes corresponding to the following structure: ##STR1## wherein R.sup.1 -R.sup.7 are hydrogen, hydrocarbyl or inert functional groups, and X is an anion. The resulting olefins are useful as chemical intermediates.