Alkylamine polylactone aminocarbamates and fuel compositions con

Details Alkylamine polylactone aminocarbamates and fuel compositions con Alkylamine polylactone aminocarbamates and fuel compositions con

1996-06-20

1997-04-08

Medley, Margaret

Fuel and related compositions

Liquid fuels

Containing organic -c

560159, C10L 122, C07C12504

Patent

active

056183194

ABSTRACT:
Alkylamine polylactone aminocarbamates having the formula: ##STR1## wherein R.sub.1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the compound soluble in hydrocarbons boiling in the gasoline or diesel fuel range;
R.sub.2 is an alkylene group of about 2 to about 5 carbon atoms;
A is a polyamine moiety having at least one basic nitrogen atom;
and x is an integer from about 1 to about 25.
The alkylamine polylactone aminocarbamates of formula I are useful as fuel additives for the prevention and control of engine deposits.

REFERENCES:
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patent: 4191537 (1980-03-01), Lewis et al.
patent: 4820432 (1989-04-01), Lundberg et al.
patent: 5028667 (1991-07-01), McLain et al.
patent: 5306314 (1994-04-01), Cherpeck
patent: 5484463 (1996-01-01), Cherpeck
P. Dubois et al., "Macromolecular Engineering of Polylactones and Polylactides. 8. Ring-Opening Polymerization of .epsilon.-Caprolactone Initiated by Primary Amines and Trialkylaluminum", Macromolecules, 1992, month unknown vol. 25, pp. 2614-2618.
D. Tian et al., "Macromolecular Engineering of Polylactones and Polylactides. 18. Synthesis of Star-Branched Aliphatic Polyesters Bearing Various Functional End Groups", Macromolecules, 1994, month unknown vol. 27, pp. 4134-4144.

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