摘要:
This invention relates to an additive package containing an organic solvent, a detergent additive and a reaction product mixture obtained by reacting a carboxylic acid compound of formula (I): R1COOR2 with an alkanol amine of formula (II): NHR3R4 to form a reaction product containing a polysubstituted alkanol amine derivative, where the reaction is performed by: (a) heating the carboxylic acid of formula (I) to a first temperature; (b) adding thereto the alkanol amine of formula (II) under controlled conditions avoiding an increase of temperature above the first temperature range; (c) maintaining temperature in the first temperature range; and (d) increasing the temperature of the reaction mixture to a second temperature in a second temperature range of 160 to 210° C. and allowing further reaction of residual free carboxylic acid molecules with any reactive group in the reaction mixture.
摘要翻译:本发明涉及含有有机溶剂,洗涤剂添加剂和通过使式(I)的羧酸化合物:R1COOR2与式(II)的链烷醇胺:NHR 3 R 4反应形成反应产物而得到的反应产物混合物的添加剂包 含有多取代的烷醇胺衍生物,其中反应通过以下步骤进行:(a)将式(I)的羧酸加热至第一温度; (b)在控制条件下加入式(II)的链烷醇胺,避免温度升高至高于第一温度范围; (c)将温度保持在第一温度范围内; 和(d)在160至210℃的第二温度范围内将反应混合物的温度升至第二温度,并允许残余游离羧酸分子与反应混合物中的任何反应性基团进一步反应。
摘要:
The present invention relates to novel fuel additives obtainable by reacting carboxylic acids and alkanol amines under specific conditions. Said additives show an improved performance in fuels, like gasoline. The invention also relates to methods of preparing the same; additive packages containing said additives; and methods of improving the storage stability of additive packages comprising a detergent additive in an organic solvent.