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:
Jul. 14, 1998
Filed:
Aug. 26, 1996
Applicant:
Inventors:
Odyr Do Coutto Filho, Rio de Janeiro, BR;
Noemi Tatizawa, Rio de Janeiro, BR;
Assignee:
Petroleo Brasileiro S.A.-Petrobras, Rio de Janeiro, BR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585532 ; 585530 ; 585255 ;
Abstract
A process is described for the production of synthetic basestocks from an alpha-olefin feedstock with carbon number in the range C.sub.7 -C.sub.30 the feedstock having origin in an ethylene polymerization process, the process comprising contacting the feedstock with a solid or soluble cationic AlCl.sub.3 catalyst. After separation and distilling out of the light fraction of the oligomer, a basestock of excellent viscometric, rheological and thermal stability properties is obtained. The basestocks so obtained are also described.