| 摘要 |
A quaternary ammonium salt of a copolymer, said copolymer being the olefin polymerization product of: (A) a nitrogen amine free ester of a C1-C6 olefinically unsaturated aliphatic mono-, di-, or polycarboxylic acid having a tertiary nitrogen atom; and (B) an olefinically unsaturated comonomer containing a basic nitrogen atom in a side chain; a fuel component, especially gasoline, containing such quaternary ammonium salt of such copolymer as a detergent.
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