Fuel compositions having polyalkylene succinimides and preparation thereof
First Claim
1. A fuel composition comprising a major amount of a hydrocarbon boiling in the gasoline or diesel fuel range and from 10 to 10,000 parts of a polymer per million parts of said hydrocarbon, said polymer having the general formula:
- ##STR12## wherein;
W is a mixture of nitrogen-containing groups consisting of ##STR13## R is a polyalkyl or polyalkylene having a number average molecular weight of at least 1000,R1 is an alkyl having from 10 to 24 carbon atoms;
Z is a polyalkylene polyamine linking radical;
m is a whole integer of from 1 to 3n is a whole integer of from 1 to 3;
x is a whole integer of from 1 to 100;
Int. is an initiating radical;
Ter. is a terminating group; and
wherein R2 and R3 are independently hydrogen, alkyl, phenyl, or taken together are alkylene to give a ring group.
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Abstract
A succinimide composition is prepared by reacting a mixture of an alkenyl or alkylsuccinic acid derivative, an unsaturated acidic reagent copolymer, and a polyamine under reactive conditions. The alkenyl or alkyl substituent of the alkenyl or alkylsuccinic acid derivative has a Mn of from 1000 to 5000. The unsaturated acidic reagent copolymer is a copolymer of an unsaturated acidic reagent and an alkylene group. That alkylene group can be an α-olefin having 8 to 42 carbon atoms, a polyalkylene having from 8 to 28 carbon atoms, ethylene, styrene, 1,3-butadiene, vinyl alkyl ether having at least 3 carbon atoms, or vinyl alkanoate having at least 4 carbon atoms. The polyamine has at least three nitrogen atoms and 4 to 20 carbon atoms. The mixture contains from 0.5 to 10 equivalents of the alkenyl or alkylsuccinic acid derivative per equivalent of unsaturated acidic reagent copolymer and from 0.4 to 1.0 moles of polyamine per equivalent of alkenyl or alkylsuccinic acid derivative plus unsaturated acidic reagent copolymer.
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Citations
6 Claims
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1. A fuel composition comprising a major amount of a hydrocarbon boiling in the gasoline or diesel fuel range and from 10 to 10,000 parts of a polymer per million parts of said hydrocarbon, said polymer having the general formula:
- ##STR12## wherein;
W is a mixture of nitrogen-containing groups consisting of ##STR13## R is a polyalkyl or polyalkylene having a number average molecular weight of at least 1000,R1 is an alkyl having from 10 to 24 carbon atoms; Z is a polyalkylene polyamine linking radical; m is a whole integer of from 1 to 3 n is a whole integer of from 1 to 3; x is a whole integer of from 1 to 100; Int. is an initiating radical; Ter. is a terminating group; and wherein R2 and R3 are independently hydrogen, alkyl, phenyl, or taken together are alkylene to give a ring group. - View Dependent Claims (2, 3, 4)
- ##STR12## wherein;
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5. A fuel oil composition comprising a major amount of oil hydrocarbon boiling on the gasoline or diesel fuel range an amount of a succinimide composition which is effective to reduce injection or chamber deposits, wherein said succinimide composition is prepared by reacting a mixture under reactive conditions at temperatures in the range of about from 140°
- to 180°
C. for about from 1 to 10 hours, wherein the mixture comprises;(a) an alkenyl or alkylsuccinic acid derivative, wherein the alkenyl or alkyl substituent has a Mn of from 1000 to 5000; (b) an unsaturated acidic reagent copolymer of (1) an unsaturated acidic reagent and (2) an alkylene group selected from the group consisting of an α
-olefin having 8 to 42 carbon atoms, a polyalkylene having from 8 to 28 carbon atoms, ethylene, styrene, 1,3-butadiene, vinyl alkyl ether having at least 3 carbon atoms, and vinyl alkanoate having at least 4 carbon atoms; and(c) a polyamine having at least three nitrogen atoms and 4 to 20 carbon atoms; and wherein said mixture contains from 0.5 to 10 equivalents of said alkenyl or alkylsuccinic acid derivative per equivalent of said unsaturated acidic reagent copolymer and from 0.4 to 1.0 equivalents of said polyamine per equivalent of alkenyl or alkylsuccinic acid derivative plus unsaturated acidic reagent copolymer. - View Dependent Claims (6)
- to 180°
Specification