A gasoline additive composition is disclosed comprising an ester, and at least one dispersant component selected from a monosuccinimide, a bissuccinimide, an alkylamine of average molecular weight 500 - 5000 having a polyolefine polymer as an alkyl group, and a benzylamine derivative of average molecular weight 500 - 5000. The composition may further comprise a polyoxyalkylene glycol or derivative thereof, and/or a lubricant oil fraction of viscosity in the range 3 - 35 mm²/s (100°C).
The composition has utility in preventing or reducing undesired deposits on the surfaces of intake valves of an automobile engine.
本发明公开了一种汽油添加剂组合物,该组合物包含一种酯和至少一种分散剂成分,该分散剂成分选自单琥珀
酰亚胺、双琥珀
酰亚胺、以聚烯烃聚合物为烷基的平均分子量为 500 - 5000 的烷基胺和平均分子量为 500 - 5000 的苄基胺衍
生物。该组合物还可进一步包含聚氧亚烷基二醇或其衍
生物,和/或粘度在 3 - 35 mm²/s (100°C)范围内的润滑油馏分。
该组合物可用于防止或减少汽车发动机进气阀表面的沉积物。