Fuel compositions of poly(oxyalkylene) aminocarbamate

Claim 2

A fuel composition comprising a major portion of hydrocarbons boiling in the gasoline range, and from 30 to 2,000 ppm of a hydrocarbylpoly(oxyalkylene) aminocarbamate of molecular weight from about 600 to 10,000, and having at least one basic nitrogen atom; wherein said hydrocarbylpoly(oxyalkylene) moiety is composed of oxyalkylene units selected from 2 to 5 carbon oxyalkylene units of which at least a sufficient number are branched chain oxyalkylene units to render said carbamate soluble in said fuel composition; and said hydrocarbyl group contains from 1 to about 30 carbon atoms.

Claim 3

The fuel composition of claim 1 in which at least one basic nitrogen atom in said aminocarbamate is in a primary or secondary amino group.

Claim 4

The fuel composition of claim 1 in which said hydrocarbylpoly(oxyalkylene) moiety consists of 1 to 2 hydrocarbylpoly)oxyalkylene) polymers.

Claim 5

The fuel composition of claim 3 in which each said oxyalkylene units contains 3 to 4 carbon atoms.

Claim 6

The fuel composition of claim 4 in which said oxyalkylene units are oxybutylene.

Claim 7

The fuel compostion of claim 1 in which said hydrocarbylpoly(oxyalkylene) moiety has a molecular weight of from about 500 to 5,000.

Claim 8

The fuel composition of claim 1 in which said aminocarbamate has a molecular weight of about 1,200 to 5,000.

Claim 9

The fuel composition of claim 1 in which said hydrocarbyl group contains from 2 to about 20 carbon atoms.

Claim 10

The fuel composition of claim 1 in which said hydrocarbyl group is an alkylphenyl group.

Claim 11

The fuel composition of claim 9 in which the alkyl in said alkylphenyl group is propylene tetramer.

Claim 12

The fuel composition of claim 1 wherein the amine moiety of said aminocarbamate is derived from a polyamine having from 2 to 12 amine nitrogen atoms and from 2 to 40 carbon atoms with a carbon:nitrogen ratio between 1:1 and 10:1.

Claim 13

The fuel composition of claim 11 in which said polyamine is a substituted polyamine with substituents selected from (A) hydrogen, (B) hydrocarbyl groups of from 1 to about 10 carbon atoms, (C) acyl groups of from 2 to about 10 carbon atoms, and (D) monoketo, monohydroxy, mononitro, monocyano, lower alkyl and lower alkoxy derivatives of (B) and (C).

Claim 14

The fuel composition of claim 11 in which said polyamine is a polyalkylene polyamine wherein the alkylene group contains from 2 to 6 carbon atoms and the polyamine contains 2 to 12 amine nitrogen atoms and 2 to 24 carbon atoms.

Claim 15

The fuel composition of claim 13 in which said polyalkylene polyamine is selected from the group consisting of ethylene diamine, polyethylene polyamine, propylene diamine and polypropylene polyamine.

Claim 16

The fuel composition of claim 11 in which said polyamine is ethylene diamine.

Claim 17

The fuel composition of claim 1 in which said hydrocarbylpoly(oxyalkylene) aminocarbamate is butylpoly(oxypropylene)-N-(2-aminoethyl)carbamate.

Claim 18

The fuel composition of claim 1 in which said hydrocarbylpoly(oxyalkylene) aminocarbamate is alkylphenylpoly(oxyisobutylene)-N-(2-aminoethyl)carbamate.

Claim 19

A fuel composition comprising a major portion of hydrocarbons boiling in the gasoline range and from 30 to 2000 ppm of a poly(oxyalkylene) aminocarbamate having at least one C 1 -C 30 hydrocarbyl-terminated poly(oxyalkylene) chain comprising 2 to 5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine; said polyamine having from 2 to 12 amine nitrogens and from 2 to 40 carbon atoms with a carbon:nitrogen ratio between 1:1 and 10:1, said poly(oxyalkylene) aminocarbamate having a molecular weight of from about 600 to 10,000, the polyamine moiety containing at least one basic nitrogen atom, the polyoxyalkylene) chain containing at least a sufficient number of branched C 3 -C 5 oxyalkylene units to render the aminocarbamate soluble in said fuel composition.

Claim 20

A fuel composition comprising a major portion of hydrocarbons boiling in the gasoline range and from 30 to 2000 ppm of a poly(oxyalkylene) aminocarbamate having at least one C 1 -C 30 hydrocarbyl-terminated poly(oxyalkylene) chain comprising 2 to 5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine; said polyamine having from 2 to 12 amine nitrogens and from 2 to 40 carbon atoms with a carbon:nitrogen ratio between 1:1 and 10:1, said poly(oxyalkylene) aminocarbamate having a molecular weight of from about 600 to 10,000, the polyamine moiety containing at least one basic nitrogen atom, the polyoxyalkylene) chain containing at least a sufficient number of branched C 3 -C 5 oxyalkylene units to render the aminocarbamate soluble in said fuel composition.

Claim 21

The composition of claim 18 wherein at least one basic nitrogen atom in said aminocarbamate is in a primary or secondary amino group.

Claim 22

The composition of claim 18 wherein the oxyalkylene units contain 3 or 4 carbon atoms.

Claim 23

The composition of claim 18 wherein the molecular weight is from about 1200 to 5,000, and the polyamine is a polyalkylene polyamine.

Claim 24

The composition of claim 18 wherein the hydrocarbyl group is an alkylphenyl group or a butyl group.

Claim 25

A fuel composition comprising a major portion of hydrocarbons boiling in the gasoline range and from 30 to 2000 ppm of a compound of the formula: ##STR6## wherein two R 3 groups attached to the same nitrogen atom and taken together with said nitrogen atom may form a 5 or 6 membered saturated or unsaturated nitrogen heterocyclic radical; wherein said heterocyclic radical may be substituted with substituents selected from: (A) hydrogen; (B) hydrocarbyl groups of from 1 to 10 carbon atoms; (C) acyl groups of from 2 to 10 carbon atoms; and (D) monoketo, monohydroxy, mononitro, monocyano, lower alkyl and lower alkoxy derivatives of the substituents of (B) and (C); wherein the remaining R 3 groups are the same or different substituents selected from (A), (B), (C), (D) and poly(oxyalkylene) oxycarbonyl groups of the formula R-(OC g H 2g ) j O--C(O)-- in which g is an integer from 2 to 5; j is an integer such that the molecular weight of the poly(oxyalkylene) group is about 500 to 5,000, and R is a hydrocarbyl group of from 1 to 30 carbon atoms; wherein the R 1 are the same or different alkylene, carbonyl, oxycarbonyl, or hydroxy-substituted alkylene radical of from 2 to 6 carbon atoms, and R 2 is carbonyl, alkylene carbonyl or alkylene of 2 to 4 carbon atoms with vicinal linkages; wherein at least one of the R 3 groups is said poly(oxyalkylene) oxycarbonyl group in which a sufficient number of oxyalkylene units, --OC g H 2g --, are branched chains C 3 -C 5 oxyalkylene units to render said compound soluble in said fuel composition; wherein R 3 , R 1 and R 2 are selected such that at least one nitrogen atom is a basic nitrogen atom; and wherein a is 0 or 1, b is an integer 0 to 4, c is 0 or 1, d is 0 or 1, e is 0 or 1, f is 0 or 1 and equal to 1 when c is 0, and the sum f+b+2c+e is equal to or greater than 2.

Claim 26

A fuel composition comprising a major portion of hydrocarbons boiling in the gasoline range and from 30 to 2000 ppm of a compound of the formula: ##STR6## wherein two R 3 groups attached to the same nitrogen atom and taken together with said nitrogen atom may form a 5 or 6 membered saturated or unsaturated nitrogen heterocyclic radical; wherein said heterocyclic radical may be substituted with substituents selected from: (A) hydrogen; (B) hydrocarbyl groups of from 1 to 10 carbon atoms; (C) acyl groups of from 2 to 10 carbon atoms; and (D) monoketo, monohydroxy, mononitro, monocyano, lower alkyl and lower alkoxy derivatives of the substituents of (B) and (C); wherein the remaining R 3 groups are the same or different substituents selected from (A), (B), (C), (D) and poly(oxyalkylene) oxycarbonyl groups of the formula R-(OC g H 2g ) j O--C(O)-- in which g is an integer from 2 to 5; j is an integer such that the molecular weight of the poly(oxyalkylene) group is about 500 to 5,000, and R is a hydrocarbyl group of from 1 to 30 carbon atoms; wherein the R 1 are the same or different alkylene, carbonyl, oxycarbonyl, or hydroxy-substituted alkylene radical of from 2 to 6 carbon atoms, and R 2 is carbonyl, alkylene carbonyl or alkylene of 2 to 4 carbon atoms with vicinal linkages; wherein at least one of the R 3 groups is said poly(oxyalkylene) oxycarbonyl group in which a sufficient number of oxyalkylene units, --OC g H 2g --, are branched chains C 3 -C 5 oxyalkylene units to render said compound soluble in said fuel composition; wherein R 3 , R 1 and R 2 are selected such that at least one nitrogen atom is a basic nitrogen atom; and wherein a is 0 or 1, b is an integer 0 to 4, c is 0 or 1, d is 0 or 1, e is 0 or 1, f is 0 or 1 and equal to 1 when c is 0, and the sum f+b+2c+e is equal to or greater than 2.

Claim 27

The composition of claim 23 in which g is 3 or 4.

Claim 28

The composition of claim 24 in which f, a, and e are each equal to 1 and c and d are each 0.

Claim 29

The composition of claim 25 in which all the R 3 groups other than the poly(oxyalkylene) group are H.

Claim 30

The composition of claim 26 in which R 1 is propylene.

Claim 31

The composition of claim 26 in which R 1 is ethylene.

Claim 32

The composition of claim 26 in which R is an alkylphenyl group.

Claim 33

The fuel composition of claim 1 which contains in addition from 100 to 5,000 ppm of a fuel-soluble poly(oxyalkylene) alcohol, glycol or polyol.

Claim 34

The fuel composition of claim 30 in which the poly(oxyalkylene) compound is poly(oxypropylene) alcohol.

Claim 35

A concentrate according to claim 1 wherein there is present in addition (C 1 -C 30 hydrocarbyl) poly(oxyalkylene) alcohol in the amount of from 5 to 80 weight percent.

Claim 36

The fuel composition of claim 18 which contains in addition from 100 to 5,000 ppm of a fuel-soluble poly(oxyalkylene) alcohol, glycol or polyol.

Claim 37

The fuel composition of claim 33 in which the poly(oxyalkylene) compound is poly(oxypropylene) alcohol.

Claim 38

A concentrate according to claim 1 wherein there is present, in addition, (C 1 -C 30 hydrocarbyl) poly(oxyalkylene) alcohol in the amount of from 5 to 80 weight percent.

Claim 39

The fuel composition of claim 23 which contains in addition from 100 to 5,000 ppm of a fuel-soluble poly(oxyalkylene) alcohol, glycol or polyol.

Claim 40

The fuel composition of claim 33 in which the poly(oxyalkylene) compound is poly(oxypropylene) alcohol.

Claim 41

A concentrate according to claim 1 wherein there is present, in addition, (C 1 -C 30 hydrocarbyl) poly(oxyalkylene) alcohol in the amount of from 5 to 80 weight percent.

Claim 42

A concentrate of a deposit control additive for fuel compositions comprises an inert stable oleophilic organic solvent boiling in the range of from about 150° to 400° F. and from 10 to 50 weight percent of a hydrocarbyl poly(oxyalkylene) aminocarbamate of molecular weight from about 600 to 10,000, and having at least one basic nitrogen atom; wherein said hydrocarbyl poly(oxyalkylene) moiety is composed of oxyalkylene units selected from 2 to 5 carbon oxyalkylene units of which at least a sufficient number are branched chain oxyalkylene units to render said carbamate soluble in hydrocarbons boiling in the gasoline range; and said hydrocarbyl group contains from 1 to about 30 carbon atoms.

Claim 43

A concentrate of a deposit control additive for fuel compositions comprises an inert stable oleophilic organic solvent boiling in the range of from about 150° to 400° F. and from 10 to 50 weight percent of a hydrocarbyl poly(oxyalkylene) aminocarbamate of molecular weight from about 600 to 10,000, and having at least one basic nitrogen atom; wherein said hydrocarbyl poly(oxyalkylene) moiety is composed of oxyalkylene units selected from 2 to 5 carbon oxyalkylene units of which at least a sufficient number are branched chain oxyalkylene units to render said carbamate soluble in hydrocarbons boiling in the gasoline range; and said hydrocarbyl group contains from 1 to about 30 carbon atoms.

Claim 44

A concentrate of a deposit control additive for fuel compositions comprises an inert stable oleophilic organic solvent boiling in the range of about 150° F. to 400° F. and from 10 to 50 weight percent of a poly(oxyalkylene) aminocarbamate having at least one C 1 -C 30 hydrocarbyl-terminated poly(oxyalkylene) chain comprising 2 to 5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine; said polyamine having from 2 to 12 amine nitrogen atoms and from 2 to 40 carbon atoms with a carbon:nitrogen ratio between 1:1 and 10:1, said poly(oxyalkylene) aminocarbamate having a molecular weight of from about 600 to 10,000, the polyamine moiety containing at least one basic nitrogen atom, the poly(oxyalkylene) chain containing at least a sufficient number of branched C 3 -C 5 oxyalkylene units to render the aminocarbamate soluble in hydrocarbons boiling in the gasoline range.

Claim 45

A concentrate of a deposit control additive for fuel compositions comprises an inert stable oleophilic organic solvent boiling in the range of about 150° F. to 400° F. and from 10 to 50 weight percent of a poly(oxyalkylene) aminocarbamate having at least one C 1 -C 30 hydrocarbyl-terminated poly(oxyalkylene) chain comprising 2 to 5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine; said polyamine having from 2 to 12 amine nitrogen atoms and from 2 to 40 carbon atoms with a carbon:nitrogen ratio between 1:1 and 10:1, said poly(oxyalkylene) aminocarbamate having a molecular weight of from about 600 to 10,000, the polyamine moiety containing at least one basic nitrogen atom, the poly(oxyalkylene) chain containing at least a sufficient number of branched C 3 -C 5 oxyalkylene units to render the aminocarbamate soluble in hydrocarbons boiling in the gasoline range.

Claim 46

A concentrate of a deposit control additive for fuel compositions comprises an inert stable oleophilic organic solvent boiling in the range of about 150° F. to 400° F. and from 10 to 50 weight percent of a compound of the formula: ##STR7## wherein two R 3 groups attached to the same nitrogen atom and taken together with said nitrogen atom may form a 5- or 6-membered saturated or unsaturated nitrogen heterocyclic radical; wherein said heterocyclic radical may be substituted with substituents selected from: (A) hydrogen; (B) hydrocarbyl groups of from 1 to 10 carbon atoms; (C) acyl groups of from 2 to 10 carbon atoms; and (D) monoketo, monohydroxy, mononitro, monocyano, lower alkyl and lower alkoxy derivatives of the substituents of (B) and (C); wherein the remaining R 3 groups are the same or different substituents selected from (A), (B), (C), (D) and poly(oxyalkylene) oxycarbonyl groups of the formula R--OC t H 2g ) j O--C(O)-- in which g is an integer from 2 to 5; j is an integer such that the molecular weight of the poly(oxyalkylene) group is about 500 to 5,000, and R is a hydrocarbyl group of from 1 to 30 carbon atoms; wherein the R 1 are the same or different alkylene, carbonyl, oxycarbonyl, or hydroxy-substituted alkylene radical of from 2 to 6 carbon atoms, and R 2 is carbonyl, alkylene carbonyl or alkylene of 2 to 4 carbon atoms with vicinal linkages; wherein at least one of the R 3 groups is said poly(oxyalkylene) oxycarbonyl group in which a sufficient number of oxyalkylene units, --OC g H 2g --, are branched chained C 3 -C 5 oxyalkylene units to render said compound soluble in hydrocarbons boiling in the gasoline range; wherein R 3 , R 1 and R 2 are selected such that at least one nitrogen atom is a basic nitrogen atom; and wherein a is 0 or 1, b is an integer 0 to 4, c is 0 or 1, d is 0 or 1, e is 0 or 1, f is 0 or 1 and equal to 1 when c is 0, and the sum f+b+2c+e is equal to or greater than 2.

Claim 47

A concentrate of a deposit control additive for fuel compositions comprises an inert stable oleophilic organic solvent boiling in the range of about 150° F. to 400° F. and from 10 to 50 weight percent of a compound of the formula: ##STR7## wherein two R 3 groups attached to the same nitrogen atom and taken together with said nitrogen atom may form a 5- or 6-membered saturated or unsaturated nitrogen heterocyclic radical; wherein said heterocyclic radical may be substituted with substituents selected from: (A) hydrogen; (B) hydrocarbyl groups of from 1 to 10 carbon atoms; (C) acyl groups of from 2 to 10 carbon atoms; and (D) monoketo, monohydroxy, mononitro, monocyano, lower alkyl and lower alkoxy derivatives of the substituents of (B) and (C); wherein the remaining R 3 groups are the same or different substituents selected from (A), (B), (C), (D) and poly(oxyalkylene) oxycarbonyl groups of the formula R--OC t H 2g ) j O--C(O)-- in which g is an integer from 2 to 5; j is an integer such that the molecular weight of the poly(oxyalkylene) group is about 500 to 5,000, and R is a hydrocarbyl group of from 1 to 30 carbon atoms; wherein the R 1 are the same or different alkylene, carbonyl, oxycarbonyl, or hydroxy-substituted alkylene radical of from 2 to 6 carbon atoms, and R 2 is carbonyl, alkylene carbonyl or alkylene of 2 to 4 carbon atoms with vicinal linkages; wherein at least one of the R 3 groups is said poly(oxyalkylene) oxycarbonyl group in which a sufficient number of oxyalkylene units, --OC g H 2g --, are branched chained C 3 -C 5 oxyalkylene units to render said compound soluble in hydrocarbons boiling in the gasoline range; wherein R 3 , R 1 and R 2 are selected such that at least one nitrogen atom is a basic nitrogen atom; and wherein a is 0 or 1, b is an integer 0 to 4, c is 0 or 1, d is 0 or 1, e is 0 or 1, f is 0 or 1 and equal to 1 when c is 0, and the sum f+b+2c+e is equal to or greater than 2.