Branched amido-amine dispersant additives

Details Branched amido-amine dispersant additives Branched amido-amine dispersant additives

C - Chemistry, Metallurgy

07

D

253/105, 44/27,

C07D 207/412 (2006.01) C10L 1/22 (2006.01) C10L 1/24 (2006.01) C10M 133/02 (2006.01) C10M 133/52 (2006.01) C10M 159/12 (2006.01) C10M 159/16 (2006.01)

Patent

CA 2016022

ABSTRACT OF THE DISCLOSURE The present invention is directed to branched amido-amine dispersant additives useful in oleaginous compositions formed by (a) reacting a first nitrogen-containing compound (e.g., ammonia or an organic amine) with an alpha, beta-unsaturated compound of the formula: R1 - ? = ? - ? - Y wherein W1 is sulfur or oxygen, Y is -OR4, -SR4, or -NR4 (R5), and R1, R2, R3, R4 and R5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, to form a first adduct containing unreacted -C(W1)-Y groups; (b) reacting the first adduct with a polyamine (e.g., a polyalkylene polyamine) to form a second adduct containing unreacted -NH- groups (preferably primary amine groups) and comprising a branched amido-amine oligomer; and (c) reacting the second adduct with a long chain hydrocarbyl substituted mono- or dicarboxylic acid material comprising a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 mono- or dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per polyolefin molecule.

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