Improvements in diesel fuel compositions

Details Improvements in diesel fuel compositions Improvements in diesel fuel compositions

C - Chemistry, Metallurgy

10

L

C10L 1/188 (2006.01) C10L 1/08 (2006.01) C10L 10/04 (2006.01) F02M 61/18 (2006.01) C11D 1/04 (2006.01)

Patent

CA 2596167

A diesel fuel composition comprising a major amount of a diesel fuel, a minor amount of at least one metallic species and a minor amount of a detergent additive; wherein the detergent additive comprises at least one compound of formula (I) and/or formula (II): Image wherein each Ar independently represents an aromatic moiety having 0 to 3 substituents selected from the group consisting of alkyl, alkoxy, alkoxyalkyl, aryloxy, aryloxyalkyl, hydroxy, hydroxyalkyl, halo and combinations thereof; each L is independently a linking moiety comprising a carbon-carbon single bond or a linking group; each Y is independently -OR1" or a moiety of the formula H(O(CR1 2)n)y X-, wherein X is selected from the group consisting of (CR1,2)z, O and S; R1 and R1 are each independently selected from H, C1 to C6 alkyl and aryl; R1" is selected from C1 to C100 alkyl and aryl; z is 1 to 10; n is 0 to 10 when X is (CR1'2)2, and 2 to 10 when X is O or S; and y is 1 to 30; each a is independently 0 to 3, with the proviso that at least one Ar moiety bears at least one group Y; and m is 1 to 100; Image wherein: each Ar' independently represents an aromatic moiety having 0 to 3 substituents selected from the group consisting of alkyl, alkoxy, alkoxyalkyl, hydroxy, hydroxyalkyl, acyloxy, acyloxyalkyl, acyloxyalkoxy, aryloxy, aryloxyalkyl, aryloxyalkoxy, halo and combinations thereof; each L' is independently a linking moiety comprising a carbon-carbon single bond or a linking group; each Y' is independently a moiety of the formula ZO- or Z(O(CR2 2)n')y'X'-, wherein X' is selected from the group consisting of (CR2'2)z, O and S; R2 and R2' are each independently selected from H, C1 to C6 alkyl and aryl; z' is 1 to 10; n' is 0 to 10 when X' is (CR2'2)z', and 2 to when X' is 0 or S; y' is 1 to 30; Z is H, an acyl group, a polyacyl group, a lactone ester group, an acid ester group, an alkyl group or an aryl group; each a' is independently 0 to 3, with the proviso that at least one Ar' moiety bears at least one group Y' in which Z is not H; and m' is 1 to 100.

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