| 摘要 |
The invention relates to the use of a copolymer as a detergent additive in an internal combustion engine liquid fuel. The copolymer is obtained by copolymerization of at least: - an alkyl acrylate or alkyl methacrylate monomer ma and - a styrenic monomer mb chosen from styrenics derivatives, the aromatic ring of which is substituted by at least one group R or by at least one linear or branched, preferably acyclic, C1 to C12 hydrocarbon-based chain substituted by at least one group R, said group R being chosen from: - the hydroxyl group, - a group -OR', - a group -(OCyH2yO)f-H, - a group -(OCyH2yO)f-R', - a group -O-(CO)-R', and - a group -(CO)-OR', where y is an integer ranging from 2 to 8, f is an integer ranging from 1 to 10, and R' is chosen from C1 to C24 alkyl chains. The invention also relates to a process for maintaining the cleanliness of and/or for cleaning at least one of the internal parts of an internal combustion engine. |
