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Process for producing ethylene alpha-olefin polymer substituted mono- and dicarboxylic acid dispersant additives

机译:制备乙烯α-烯烃聚合物取代的单和二羧酸分散剂添加剂的方法

摘要

The present invention is directed to an oil-soluble fuel and lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight substituted with mono- or dicarboxylic acid producing moieties (preferably dicarboxylic acid or anhydride moieties), wherein the terminal unsaturation comprises terminal ethenylidene unsaturation. The mono- and dicarboxylic acid or anhydride substituted polymers of this invention are useful per se as additives to lubricating oils, and can also be reacted with a nucleophilic reagent, such as amines, alcohols, amino alcohols and reactive metal compounds, to form products which are also useful fuel and lubricating oil additives, e.g., as dispersants.
机译:本发明涉及一种油溶性燃料和润滑油添加剂,其包含至少一种数均分子量为300至20,000的末端不饱和乙烯α-烯烃聚合物,该聚合物被单或二羧酸产生部分(优选二羧酸或酸酐部分)取代。 ),其中末端不饱和基团包括末端亚乙烯基不饱和基团。本发明的被一元和二元羧酸或酸酐取代的聚合物本身可用作润滑油的添加剂,并且还可以与亲核试剂(例如胺,醇,氨基醇和反应性金属化合物)反应,形成产物,也用作有用的燃料和润滑油添加剂,例如作为分散剂。

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