Modified succinimides (III)

Details Modified succinimides (III) Modified succinimides (III)

1990-02-09

1991-12-10

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

252 463, C07F 502, C10M13900

Patent

active

050719980

ABSTRACT:
Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## wherein W is oxygen or sulfur; X is oxygen, sulfur or R.sub.5 N< wherein R.sub.5 is hydrogen, and alkyl of from 1 to 20 carbon atoms; and R.sub.4 is an alkylene group of from 2 to 5 carbon atoms or an alkylene group of from 2 to 5 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each with the proviso that both W and X are not both oxygen. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.

REFERENCES:
patent: 3991056 (1976-11-01), Okamoto et al.
patent: 4713187 (1987-12-01), Buckley, III et al.
patent: 4746446 (1988-05-01), Wollenberg et al.

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