Inventors:
Angeline B. Cardis - Florence NJ
Arjun K. Goyal - Woodbury NJ
Carl E. Shanholtz - Ft. Ashby WV
Virginia C. Wiszniewski - Voorhees NJ
Assignee:
Mobil Oil Corporation - Fairfax VA
International Classification:
C10L 122
Abstract:
An ashless detergent additive having antioxidant and metal surface protection properties for lubricants or fuels is made from a Mannich condensation reaction between a hydrocarbylbissuccinimide, such as a dimer of a polyisobutenylsuccinimide (derived from tetraethylenepentamine), an aldehyde, such as formaldehyde, and a heteroatom substituted benzoic acid such as salicylic acid, thiosalicylic acid or aminosalicylic acid.