| abstract |
The invention relates to an additive composition for fuel, comprising: (a) one or more copolymer(s) comprising: - at least one unit of the following formula (I), where u = 0 or 1, E = –O– or –N(Z)–, or –O-CO-, or –CO-O- or –NH-CO- or -CO-NH-, where Z represents H or a C 1 -C 6 alkyl group, G represents a group selected between a C 1 -C 34 alkyl, an aromatic ring, an aralkyl comprising at least one aromatic ring, and at least one C 1 -C 34 alkyl group, and - at least one unit of the following formula (II), where R 1 " is selected between a hydrogen atom and a methyl group, Z is selected between a oxygen atom and a group -NR'- , where R' is selected between a hydrogen atom and C 1 to C 12 hydrocarbon chains, R comprises a C 1 to C 34 hydrocarbon chain substituted with at least one quaternary ammonium group and, optionally, one or more hydroxyl groups, the group R also optionally containing one or more nitrogen and/or oxygen atoms and/or carbonyl groups, (b) one or more Mannich bases, and (c) at least one carrier oil. |