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:
Dec. 01, 1987
Filed:
Mar. 20, 1987
Thomas F Buckley, Hercules, CA (US);
Chevron Research Company, San Francisco, CA (US);
Abstract
Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides modified by reaction with a compound of the formula: ##STR1## wherein R.sub.4 is selected from the group consisting of a divalent hydrocarbyl group of from 2 to 30 carbon atoms with the proviso that the hydrocarbyl carbon atom bound to one ##STR2## group is not also bound to the other ##STR3## group and --R.sub.5 --OR.sub.5 --.sub.p wherein R.sub.5 is alkylene of from 2 to 5 carbon atoms and p is an integer of from 1 to 100; X is selected from the group consisting of bromo, chloro and --OR.sub.6 wherein R.sub.6 is selected from the group consisting of alkyl of from 1 to 6 carbon atoms, phenyl and phenyl substituted with 1 to 2 substituents selected from the group consisting of chloro, bromo, nitro, alkyl of from 1 to 6 carbon atoms and trifluoromethyl; and m is independently an integer of from 0 to 1.