Modified succinimides (VIII)
First Claim
1. A lubricating oil composition comprising an oil of lubricating viscosity and from 0.2 to 10 percent by weight of a product produced by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide and a compound of Formula I ##STR10## wherein R4 is alkylene 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.
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Abstract
Disclosed are polyaminoalkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## R4 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. 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.
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Citations
30 Claims
- 1. A lubricating oil composition comprising an oil of lubricating viscosity and from 0.2 to 10 percent by weight of a product produced by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide and a compound of Formula I ##STR10## wherein R4 is alkylene 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.
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7. A lubricating oil composition comprising an oil of lubricating viscosity and 0.2 to 10 percent by weight of a product prepared by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide of formula III ##STR11## wherein R is alkenyl or alkyl of from 10 to 300 carbon atoms;
- R2 is alkylene of 2 to 10 carbon atoms;
R3 is hydrogen, lower alkyl or lower hydroxy alkyl;
a is an integer from 0 to 10; and
Z is --NH2 or ##STR12## wherein R is alkenyl or alkyl or from 10 to 300 carbon atoms;
with the proviso that when Z is ##STR13## then a is not zero and at least one of R3 is hydrogen;
with a compound of Formula I ##STR14## wherein R4 is alkylene 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. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
- R2 is alkylene of 2 to 10 carbon atoms;
- 16. A lubricating oil concentrate comprising from about 90 to 10 weight percent of an oil of lubricating viscosity and from about 10 to 90 weight percent of a product produced by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide and a compound of Formula I ##STR15## wherein R4 is alkylene 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.
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22. A lubricating oil concentrate comprising from about 90 to 10 weight percent of an oil of lubricating viscosity and from about 10 to 90 weight percent of a product prepared by the process which comprises contacting at a temperature sufficient to cause reaction a polyamino alkenyl or alkyl succinimide of formula III ##STR16## wherein R is alkenyl or alkyl of from 10 to 300 carbon atoms;
- R2 is alkylene of 2 to 10 carbon atoms;
R3 is hydrogen, lower alkyl or lower hydroxy alkyl;
a is an integer from 0 to 10; and
Z is --NH2 or ##STR17## wherein R is alkenyl or alkyl of from 10 to 300 carbon atoms;
with the proviso that when Z is ##STR18## then a is not zero and at least one of R3 is hydrogen;
with a compound of Formula I ##STR19## wherein R4 is alkylene 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.
- R2 is alkylene of 2 to 10 carbon atoms;
Specification