POLYALKOXYAMINE, PROCESS FOR PRODUCING SAME, DISPERSION ADDITIVE PRODUCED THEREFROM AND USE THEREOF IN LUBRICATING OIL AND FUEL

摘要

Disclosed are novel polyalkoxyamines having the formula:- wherein (x+y) has a value in the range from 1 to 19 and y is either zero or an integer; D is &lsqbstr& CHR-CHR<1>-O &rsqbstr& nCHR<1>-CHR- (II) wherein either R=R<1>=H or R=C1 to C4 alkyl and R<1>= H and n has a value in the range from 1 to 10; and Y is independently either -OH or -NHR<2> wherein R<2> is either H or alkyl. Polyalkoxyamines having the formula (I) are prepared by the deaminative polymerisation of diamines, which can be prepared by the catalysed reaction of a glycol and ammonia in the presence of hydrogen. Reaction of a hydrocarbyl-substituted succinic acylating agent with the polyalkoxyamine of formula (I) produces a dispersant additive suitable for use in lubricating oil and fuel compositions.