Heterocyclic nitrogen compound Mannich base derivatives of amino

Details Heterocyclic nitrogen compound Mannich base derivatives of amino Heterocyclic nitrogen compound Mannich base derivatives of amino

1993-11-04

1994-12-27

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Heterocyclic carbon compound containing a hetero ring having...

44333, 44340, C10L 122

Patent

active

053761537

ABSTRACT:
The novel polymers of the present invention are prepared by reacting a heterocyclic nitrogen compound containing at least one --N(H)-- group in the ring, an aldehyde and amino-substituted polymer (e.g., an ethylene alpha-olefin interpolymer substituted by primary amino or secondary amino groups) to form an oil soluble Mannich base derivative useful as antioxidant additive in oleaginous compositions such as lubricating oils and fuels. Preferred heterocyclic nitrogen compound are azoles such as benzotriazoles and alkyl-substituted benzotriazoles. Preferred amino-substituted interpolymers comprise amino-substituted ethylene propylene norbornene terpolymers. The polymers of this invention are oil soluble and are useful as dispersants, viscosity index improver dispersants, and as antiwear and antioxidant additives in oleaginous compositions.

REFERENCES:
patent: 4784782 (1988-11-01), Pialet et al.
patent: 5271856 (1993-12-01), Patil et al.

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