申请人:BASF SE
公开号:US11168273B2
公开(公告)日:2021-11-09
The present invention relates to the use of an olefin-carboxylic acid copolymer, wherein the copolymer comprises at least one free carboxylic acid side group, or of a nitrogen compound quaternized with epoxide in the presence of an olefin-carboxylic acid copolymer, wherein the copolymer comprises at least one free carboxylic acid side group, as a fuel additive or lubricant additive; to processes for preparing additives of this kind, and to fuels and lubricants additized therewith; such as, more particularly, as a detergent additive; for reduction or prevention of deposits in the injection systems of direct injection diesel engines, especially in common rail injection systems, for reduction of the fuel consumption of direct injection diesel engines, especially of diesel engines with common rail injection systems, and for minimization of power loss in direct injection diesel engines, especially in diesel engines with common rail injection systems; and as an additive for gasoline fuels, especially for operation of DISI engines.
本发明涉及烯烃-羧酸共聚物(其中共聚物包含至少一个游离羧酸侧基)或在烯烃-羧酸共聚物(其中共聚物包含至少一个游离羧酸侧基)存在下与环氧化物季铵化的氮化合物作为燃料添加剂或润滑油添加剂的用途;制备这类添加剂的工艺,以及添加了这类添加剂的燃料和润滑油;例如,尤其是用作清洁剂添加剂;用于减少或防止直喷式柴油发动机喷射系统(尤其是共轨喷射系统)中的沉积物,减少直喷式柴油发动机(尤其是共轨喷射系统的柴油发动机)的燃料消耗量,最大限度地减少直喷式柴油发动机(尤其是共轨喷射系统的柴油发动机)的功率损失;以及用作汽油燃料添加剂,尤其是用于 DISI 发动机的操作。