Lubricating oil with improved diesel dispersancy

Details Lubricating oil with improved diesel dispersancy Lubricating oil with improved diesel dispersancy

1980-08-25

1982-07-06

Waltz, Thomas A.

Compositions

Electrolytes for electrical devices

252 33, 252 463, 252 475, 252 496, 252 499, C10M 154, C10M 144, C10M 140

Patent

active

043382053

ABSTRACT:
Alkenyl succinimide or borated alkenyl succinimide dispersants as exemplified by a polyisobutenyl succinic anhydride-alkylene polyamine reaction product are substantially improved in their dispersancy properties in diesel engines by treating such dispersants at elevated temperatures with an oil-soluble strong acid, such as an alkaryl sulfonic acid or a phosphoric acid, such as a dialkyl monoacid phosphate. The treated dispersants are included in conventional lubricating oil formulations.

REFERENCES:
patent: 3087936 (1963-04-01), Le Suer
patent: 3113106 (1963-12-01), Klass et al.
patent: 3254025 (1966-05-01), Le Suer
patent: 3282955 (1966-11-01), Le Suer
patent: 3284409 (1966-11-01), Dorer
patent: 3338832 (1967-08-01), Le Suer
patent: 3344069 (1967-09-01), Stuebe
patent: 3491025 (1970-01-01), Lee
patent: 4097389 (1978-06-01), Andress, Jr.
patent: 4173540 (1979-11-01), Lonstrays et al.

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