Multifunctional ashless detergent additives for fuels and lubric

Details Multifunctional ashless detergent additives for fuels and lubric Multifunctional ashless detergent additives for fuels and lubric

1992-08-21

1993-11-23

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Heterocyclic carbon compound containing a hetero ring having...

548520, C10L 122

Patent

active

052640043

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.

REFERENCES:
patent: 4981493 (1991-01-01), Sung
patent: 5069684 (1991-12-01), Blain et al.
patent: 5160349 (1992-11-01), Cardis et al.
patent: 5160649 (1992-11-01), Cardis et al.

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