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. 22, 2000
Filed:
Dec. 15, 1998
Applicant:
Inventors:
James J Harrison, Novato, CA (US);
Anatoli Onopchenko, Concord, CA (US);
William R Ruhe, Jr, Benicia, CA (US);
Assignee:
Chevron Chemical Company LLC, San Ramon, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C10M / ; C10L / ;
U.S. Cl.
CPC ...
5283291 ; 528332 ; 528335 ; 528336 ; 528486 ; 508192 ; 508222 ; 526262 ; 44317 ; 44330 ; 44331 ; 44346 ;
Abstract
A succinimide composition is prepared by reacting a mixture of a polyalkenyl derivative, an unsaturated acidic reagent copolymer, and a polyamine under reactive conditions. The polyalkenyl derivative is produced by reacting an unsaturated acidic reagent with a polyalkene in the presence of a strong acid. The unsaturated acidic reagent copolymer is a copolymer of an unsaturated acidic reagent and an olefin.