Polyalkoxyamines, their preparation, dispersant additives...

Details Polyalkoxyamines, their preparation, dispersant additives... Polyalkoxyamines, their preparation, dispersant additives...

C - Chemistry, Metallurgy

07

C

253/105, 44/27,

C07C 217/42 (2006.01) C07C 217/08 (2006.01) C08G 73/02 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/222 (2006.01) C10L 1/238 (2006.01) C10L 1/2387 (2006.01) C10M 133/08 (2006.01) C10M 133/56 (2006.01)

Patent

CA 2039198

Case 7476(2) ABSTRACT OF THE DISCLOSURE POLYALKOXYAMINES, THEIR PREPARATION, DISPERSANT ADDITIVES PREPARED THEREFROM AND USE OF THE ADDITIVES IN LUBRICATING OILS AND FUELS Disclosed are novel polyalkoxyamines having the formula:- Image (I) wherein (x+y) has a value in the range from 1 to 19 and y is either zero or an integer; D is ? CHR-CHR1-O ?nCHR1-CHR- (II) wherein either R=R1=H or R=C1 to C4 alkyl and R1= H and n has a value in the range from 1 to 10; and Y is independently either -OH or -NHR2 wherein R2 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.

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