Branched amido-amine dispersant additives

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

1992-08-05

1993-07-20

McAvoy, Ellen

Compositions

Electrolytes for electrical devices

252 475, 252 496, 548546, 548547, C10M13356, C10M14900

Patent

active

052290204

ABSTRACT:
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: ##STR1## wherein W.sup.1 is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5), and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, to form a first adduct containing unreacted --C(W.sup.1)--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 dicarboyxlic 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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