Modified succinimides (IV)
First Claim
1. A fuel composition comprising a hydrocarbon boiling in a gasoline or diesel range and from 10 to 10,000 parts per million of a polyamino alkenyl or alkyl succinimide wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene wherein said hydrocarbylcarbonyl group contains from 1 to 30 carbon atoms, and said alkylene is a three- or four-carbon alkylene group or a three- or four-carbon alkylene group substituted with 1 to 3 alkyl groups of from 1 to 2 carbon atoms each.
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Abstract
Disclosed are polyamino alkenyl or alkyl succinimides which have been modified by treatment with a lactone to yield polyamino alkenyl or alkyl succinimides wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene group. The additives so disclosed are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils.
56 Citations
20 Claims
- 1. A fuel composition comprising a hydrocarbon boiling in a gasoline or diesel range and from 10 to 10,000 parts per million of a polyamino alkenyl or alkyl succinimide wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene wherein said hydrocarbylcarbonyl group contains from 1 to 30 carbon atoms, and said alkylene is a three- or four-carbon alkylene group or a three- or four-carbon alkylene group substituted with 1 to 3 alkyl groups of from 1 to 2 carbon atoms each.
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7. A fuel composition comprising a hydrocarbon boiling in a gasoline or diesel range and from 10 to 10,000 parts per million of a compound of the formula:
- ##STR15## wherein R1 is alkenyl or alkyl of from 10 to 300 carbon atoms;
R2 is alkylene of 2 to 10 carbon atoms;
R6 is hydrogen, lower alkyl of from 1 to 6 carbon atoms, and hydrocarbylcarbonylalkylene wherein said hydrocarbyl contains from 1 to 30 carbon atoms, said alkylene is a three- or four-carbon alkylene group or a three- or four-carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each;
a is an integer of from 1 to 6; and
T is --N(R6)2, --NHR6 or ##STR16## wherein R1 and R6 are as defined above; and
with the proviso that the compound contains at least one R6 which is hydrocarbylcarbonylalkylene. - View Dependent Claims (8, 9, 10)
- ##STR15## wherein R1 is alkenyl or alkyl of from 10 to 300 carbon atoms;
- 11. A fuel concentrate comprising 30 to 90 weight percent of an inert stable oleophilic organic solvent and 10 to 70 weight percent of a polyamino alkenyl or alkyl succinimide wherein one or more of the basic nitrogens of the polyamino moiety is substituted with hydrocarbylcarbonylalkylene wherein said hydrocarbylcarbonyl group contains from 1 to 30 carbon atoms, and said alkylene is a three- or four-carbon alkylene group substituted with 1 to 3 alkyl groups of from 1 to 2 carbon atoms each.
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17. A fuel concentrate comprising 30 to 90 weight percent of an inert stable oleophilic organic solvent and 10 to 70 weight percent of a compound of the formula:
- ##STR19## wherein R1 is alkenyl or alkyl of from 10 to 300 carbon atoms;
R2 is alkylene of 2 to 10 carbon atoms;
R6 is hydrogen, lower alkyl of from 1 to 6 carbon atoms, and hydrocarbylcarbonylalkylene wherein said hydrocarbyl contains from 1 to 30 carbon atoms, said alkylene is a three- or four-carbon alkylene group or a three- or four-carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each;
a is an integer from 1 to 6; and
T is --N(R6)2, --NHR6 or ##STR20## wherein R1 and R6 are as defined above; and
with the proviso that the compound contains at least one R6 which is hydrocarbylcarbonylalkylene. - View Dependent Claims (18, 19, 20)
- ##STR19## wherein R1 is alkenyl or alkyl of from 10 to 300 carbon atoms;
Specification