发明授权
US08263535B2 Method for producing polyalkenyl succinimide products, novel polyalkenylsuccinimide products with improved properties, intermediate products 有权
生产聚烯基琥珀酰亚胺产品的方法,具有改进性能的新型聚烯基琥珀酰亚胺产品,中间产品

Method for producing polyalkenyl succinimide products, novel polyalkenylsuccinimide products with improved properties, intermediate products
摘要:
A process for the preparation of polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, is proposed, in which a polyalkene is reacted with a maleic acid, maleic anhydride or a functional derivative thereof to give a polyalkenylsuccinic anhydride and the polyalkenylsuccinic anhydride is then reacted with an oligoamine or polyamine, the polyalkenylsuccinic anhydride either (a) first being reacted with an alcohol or phenol and, without isolation of the reaction product, then with the oligoamine or polyamine, or (b) the polyalkenylsuccinic anhydride being reacted with the oligoamine or polyamine in the presence of an alcohol or phenol and (c) if desired, the alcohol or the phenol then being removed. Novel polyalkenylsuccinimide products, in particular polyisobutenylsuccinimide products, and fuel additives are also proposed.
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