Compositions for control of induction system deposits

Details Compositions for control of induction system deposits Compositions for control of induction system deposits

1996-04-09

1997-10-21

Johnson, Jerry D.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44432, C10L 130, C10L 122

Patent

active

056791160

ABSTRACT:
Fuel additives and fuel additive compositions are described comprising: (i) at least one fuel-soluble detergent/dispersant which is (a) a fuel-soluble salt, amide, imide, oxazoline and/or ester, or a mixture thereof, of a long chain aliphatic hydrocarbon-substituted dicarboxylic acid or its anhydride, (b) a long chain aliphatic hydrocarbon having a polyamine attached directly thereto, and/or (c) a Mannich condensation product formed by condensing a long chain aliphatic hydrocarbon-substituted phenol with an aldehyde, and an amine; wherein the long chain hydrocarbon group in (a), (b) and (c) is a polymer of at least one C.sub.2 to C.sub.10 monoolefin, said polymer having a number average molecular weight of at least about 300; (ii) a fuel-soluble cyclopentadienyl complex of a transition metal; and (iii) a fuel-soluble liquid carrier or additive induction aid. These compositions in use enable surprising improvements in intake valve deposit control as well as other advantages.

REFERENCES:
patent: 3960515 (1976-06-01), Honnen
patent: 4039300 (1977-08-01), Chloupek et al.
patent: 4155718 (1979-05-01), Graiff
patent: 4877416 (1989-10-01), Campbell
patent: 5006130 (1991-04-01), Aiello et al.
patent: 5405419 (1995-04-01), Ausari et al.
patent: 5496383 (1996-03-01), Franz et al.
patent: 5503644 (1996-04-01), Graiff et al.
patent: 5551957 (1996-09-01), Cunningham et al.

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