Patent ID: 9315753
Filing Date: 2016-04-19
CPC Classification: C10L

Claim Text:
1. A diesel fuel composition comprising, as an additive, the product of a Mannich reaction between: (a) an aldehyde; (b) an amine; and (c) a substituted phenol; wherein the phenol is substituted with at least one branched hydrocarbyl group having a molecular weight of between 200 and 3000; and wherein in the Mannich reaction used to form the additive the molar ratio of component (a) to component (b) is 1.95-1.6:1; the molar ratio of component (a) to component (c) is 1.7-1.1:1 and the molar ratio of component (b) to component (c) is 1:1.1-1.7.