Substituted Mannich base fuel additives, compositions, and methods
AssigneeEvonik Operations GmbH
InventorsBuford Brian Smith, Gamini Ananda Vedage
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Abstract
Mannich base compositions include the reaction products of (1) an amine component including at least one multifunctional amine of structure (1): wherein each R is independently H or CH2CH2CH2NH2; R1 is H, CH2CH2CH2NH2, C1-C21 alkyl, or C2-C21 alkenyl; n is 2; and m is 1 or 2, with (2) an alkyl substituted hydroxyaromatic compound, and (3) and aldehyde. The Mannich base compositions are useful for fuel additives and other articles. Additive compositions, fuel additives, fuel compositions and methods for reducing deposit formations in a fuel system are also disclosed.
Claims16
A substituted Mannich base composition comprising a reaction product of (1) an amine component comprising at least one multifunctional amine of structure (I):
- wherein each R is independently H or CH2CH2CH2NH2;
- R1 is H, CH2CH2CH2NH2, C1-C21 alkyl, or C2-C21 alkenyl;
- n is 2;
- and m is 1 or 2, and (2) an alkyl substituted hydroxyaromatic compound comprising an oligonieric or polymeric alkyl substituent being a polyisobutylene of 250-1500 molecular weight and (3) an aldehyde.
Dependencies are inferred from the claim text.