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:
Jan. 18, 2005
Filed:
Feb. 20, 2003
Paul W. Bessonette, Sarnia, CA;
Patrick E. Godici, Naperville, IL (US);
Kim E. Fyfe, Sarnia, CA;
Jeenok T. Kim, Fairfax, VA (US);
Paul W. Bessonette, Sarnia, CA;
Patrick E. Godici, Naperville, IL (US);
Kim E. Fyfe, Sarnia, CA;
Jeenok T. Kim, Fairfax, VA (US);
BP Corporation North America Inc., Warrenville, IL (US);
Abstract
This invention generally relates to new polyol ester derivatives of polyamines for use as dispersant additives compatible in synthetic ester-based turbo oils. The dispersant additives of the present invention consist of a hydrocarbon acid, a polyol, an amine carrier such as diacid or cyclic anhydride and a polyamine. The hydrocarbon acid makes up the non-polar hydrocarbon portion of the dispersant and the polyamine functions as the polar headgroup. The diacid or cyclic anhydride provides a means for attaching the polar polyamine to the dispersant structure through an amide linkage. Different dispersant structures are obtained by varying the hydrocarbon acid, the polyol and the nature of the polyamine.