Modified succinimides (VII)
AssigneeChevron Research Company
InventorRobert H. Wollenberg
Life of this patent
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Abstract
Disclosed are polyaminoalkenyl 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 or sulfur; R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each; and R.sub.5 is hydrogen or alkyl of from 1 to 20 carbon atoms. 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.
Claims19
A product produced by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide containing at least one primary or secondary amine and a compound of the Formula I:
- ##STR16## wherein W is oxygen or sulfur;
- X is oxygen or sulfur;
- R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 2 to 3 carbon atoms each;
- and R.sub.5 is hydrogen or alkyl of from 1 to 20 carbon atoms.
A product produced by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide of the formula:
- ##STR17## wherein R is alkenyl or alkyl of from 10 to 300 carbon atoms;
- R.sub.2 is alkylene of 2 to 10 carbon atoms;
- R.sub.3 is hydrogen, lower alkyl or lower hydroxy alkyl;
- a is an integer from 0 to 10;
- and Z is --NH.sub.2 or represents a group of Formula III:
- ##STR18## wherein R is alkenyl or alkyl of from 10 to 300 carbon atoms;
- with the proviso that when Z is the group of Formula III above, then a is not zero and at least one of R.sub.3 is hydrogen;
- and a compound of the Formula I ##STR19## wherein W is oxygen or sulfur;
- X is oxygen or sulfur;
- R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 2 to 3 carbon atoms each;
- and R.sub.5 is hydrogen or alkyl of from 1 to 20 carbon atoms.
Dependencies are inferred from the claim text.