Fuel compositions and additives therefor

Details Fuel compositions and additives therefor Fuel compositions and additives therefor

1994-12-08

1996-05-07

Howard, Jacqueline V.

Fuel and related compositions

Liquid fuels

Organic nitrogen compound containing

44387, C10L 122

Patent

active

055141900

ABSTRACT:
A highly effective fuel additive composition for control of intake valve deposits is described. It comprises (a) a gasoline-soluble Mannich reaction product of (i) a high molecular weight alkyl-substituted phenol, (ii) amine, and (iii) aldehyde; (b) a gasoline-soluble poly(oxyalkylene) carbamate; and (c) a gasoline-soluble poly(oxyalkylene) alcohol, glycol or polyol, or mono or diether thereof. Fuel compositions and methods of controlling engine deposits are also described.

REFERENCES:
patent: 4116644 (1978-09-01), Jackisch et al.
patent: 4191537 (1980-03-01), Lewis et al.
patent: 4231759 (1980-11-01), Udelhofen et al.
patent: 4944770 (1990-07-01), Sung
patent: 5387266 (1995-02-01), Loper
patent: 5413614 (1995-05-01), Cherpeck

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