Fuel and lube additives from polyether derivatives of polyamine alkenyl
succinimides
    41.
    发明授权
    Fuel and lube additives from polyether derivatives of polyamine alkenyl succinimides 失效
    聚胺链烯基琥珀酰亚胺的聚醚衍生物的燃料和润滑添加剂

    公开(公告)号:US5069684A

    公开(公告)日:1991-12-03

    申请号:US452074

    申请日:1989-12-18

    Abstract: The present invention discloses superior fuel and lubricant additives prepared by the acylation of alkyl or alkenyl succinimides with the polyether half-esters of dicarboxylic acids. The polyether half-esters of dicarboxylic acids are grafted onto the polyamine moiety of alkyl or alkenyl succinimides by reacting the succinimide and the half-ester of the dicarboxylic acid under amidation conditions to form an amide group with an amino group of the polyamine. The process is carried out by first reacting a monofunctional polyalkylene ether with a dicarboxylic acid to produce a half-ester of the dicarboxylic acid. This product is then reacted with an alkyl or alkenyl succinimide polyamine ashless dispersant to product a multifunctional hydrocarbon fuel or lubricant additive that exhibits augmented dispersant properties.

    Abstract translation: 本发明公开了通过二羧酸的聚醚半酯酰化烷基或链烯基琥珀酰亚胺制备的优异的燃料和润滑剂添加剂。 二羧酸的聚醚半酯通过琥珀酰亚胺和二羧酸的半酯在酰胺化条件下反应形成具有多胺氨基的酰胺基,从而接枝到烷基或链烯基琥珀酰亚胺的多胺部分上。 该方法通过首先使单官能聚亚烷基醚与二羧酸反应来制备二羧酸的半酯。 然后将该产物与烷基或链烯基琥珀酰亚胺多胺无灰分散剂反应以产生表现出增强的分散剂性质的多官能烃燃料或润滑剂添加剂。

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