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:
Nov. 05, 1991
Filed:
Oct. 30, 1989
Applicant:
Inventors:
Cyril A Migdal, Croton-On-Hudson, NY (US);
Robert H Jenkins, Jr, Walden, NY (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 / ; 548520 ;
Abstract
Polymeric step ladder polysuccinimide compositions prepared by coupling the polyamine segments of polyalkenyl succinimides with dicarboxylic acids are useful as improved lubricating oil dispersants which are more compatible with engine seals made of synthetic rubbers such as Viton.RTM. than existing additives.