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US 5,312,555 AGranted
Succinimides
AssigneeEthyl Petroleum Additives, Inc.
InventorDennis J. Malfer
Life of this patent
Estimating the term…
Abstract
A product formed by reacting at least one acyclic hydrocarbyl substituted succinic acylating agent such as polyisobutenyl succinic anhydride with at least one N-(alkoxy-alkyl) alkanediamine such as N-(isodecyloxypropyl)-1,3-diaminopropane is effective as a detergent-dispersant for liquid fuels and oleaginous liquids.
Claims6
A lubricating oil composition containing a lubricating oil and from about 0.5 to about 10 weight percent of an additive product wherein the product is composed predominantly of succinimide represented by the following formula:
- ##STR32## wherein R.sub.1 is an alkyl or alkenyl group bifurcated on its beta carbon atom into two branches, one of which contains at least 4 carbon atoms and the other of which contains at least 6 carbon atoms, said group containing an average of in the range of 12 to 50 carbon atoms and R.sub.7 is an alkyl group containing up to about 50 carbon atoms.
Dependencies are inferred from the claim text.