| 摘要 |
The invention relates to a fuel additive composition, comprising:
(a) a Mannich reaction product of a hydrocarbyl-substituted phenol wherein the hydrocarbyl substituent has a number average molecular weight of from 500 to 3000, an aldehyde, and an amine; and
(b) a polyetheramine represented by the formula R[OCH 2 CH(R 1 )] n A, wherein R is a hydrocarbyl group; R 1 is selected from the group consisting of hydrogen, hydrocarbyl groups of 1 to 16 carbon atoms, and mixtures thereof; n is a number from 2 to 50; A is -NR 3 R 3 , wherein each R 3 is independently hydrogen, hydrocarbyl or -[R 4 N(R 5 )] p R 6 wherein R 4 is C 2 -C 10 alkylene; R 5 and R 6 are independently hydrogen or hydrocarbyl; p is a number from 1 to 7; and the weight ratio on an actives basis of component (a) to component (b) is 1:5.5 to 8. The invention further relates to a fuel composition comprising a hydrocarbon fuel and said fuel additive composition. |
