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US 10,815,446 B2Granted
Dispersants, method of making, and using same
AssigneeChevron Oronite Company LLC
InventorsWilliam Raymond Ruhe, Jr., Georgeta Masson, Abran Costales, Kirk Nass, John Robert Miller, Young A. Chang
Life of this patent
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Abstract
Disclosed is a dispersant composition, suitable for use in lubricating oils. The dispersant composition is a reaction product of (i) a polyalkenyl succinimide post-treated with a post-treating agent selected from the group consisting of an organic carbonate, an epoxide, a lactone, a hydroxyaliphatic carboxylic acid, and combinations thereof; and (ii) an acylating agent.
Claims16
An oil soluble or dispersible dispersant composition comprising the reaction product of:
- (i) a polyalkenyl succinimide post-treated with a post-treating agent selected from the group consisting of an organic carbonate, an epoxide, a lactone, a hydroxyaliphatic carboxylic acid, and combinations thereof;
- and
- (ii) an acylating agent selected from one of the following structures (a) through (c):
- wherein:
- LG is a leaving group capable of being displaced in an acylation reaction;
- each of R1, R2, R3, and R4 is independently selected from hydrogen, alkyl, and aryl;
- n is from 1 to 28;
- is an amine moiety;
- and
- is an aromatic, heteroaromatic, alkaryl, or alkheteroaryl moiety having from 4 to 20 carbon atoms.
7 more elements
Dependencies are inferred from the claim text.