US5160649A — Multifunctional ashless detergent additives for f…

Claim 1

Independent Claim 77 words

A reaction product having multifunctional ashless detergent, antioxidant and metal surface protection properties in an oil of lubricating viscosity or grease prepared therefrom comprising the reaction product of a hydrocarbylsuccinimide dimer, an aldehyde and a heteroatom-substituted benzoic acid which has the following structural formula: ##STR8## where X is the heteroatomic group which is a hydroxyl, thiol or a primary or secondary nitrogenous group which is NH 2 or NHR 2 where R 2 is a hydrocarbon group.

Claim 2

Dependent Claim 77 words

A reaction product having multifunctional ashless detergent, antioxidant and metal surface protection properties in an oil of lubricating viscosity or grease prepared therefrom comprising the reaction product of a hydrocarbylsuccinimide dimer, an aldehyde and a heteroatom-substituted benzoic acid which has the following structural formula: ##STR8## where X is the heteroatomic group which is a hydroxyl, thiol or a primary or secondary nitrogenous group which is NH 2 or NHR 2 where R 2 is a hydrocarbon group.

Claim 3

Dependent Claim 49 words

The reaction product of claim 1 in which the heteroatom substituted benzoic acid further comprises at least one hydrocarbon substituent group bonded to the benzene nucleus of the benzoic acid, the hydrocarbon group containing 1 to 60 carbon atoms which is an alkyl, aryl, alkenyl, aralkyl, or alkaryl group.

Claim 4

Dependent Claim 60 words

The reaction product of claim 1 in which the hydrocarbylsuccinimide dimer is derived from two equivalent amounts of a hydrocarbylsuccinic anhydride and one molar amount of an alkylenepolyamine compound having the following structural formula ##STR9## where A is an alkylene group, n and m are integers where n ranges from 0 to 7 and m ranges from 1 to 8.

Claim 5

Dependent Claim 49 words

The reaction product of claim 3 in which the hydrocarbylsuccinimide dimer is derived from maleic anhydride and an olefin selected from the group consisting of ethylene, propylene, isopropylene, butylene, isobutylene, pentylene, hexylene, heptylene, decylene, dodecylene and eicosene, higher olefinic hydrocarbons, polymers of said olefins and copolymers of said olefins.

Claim 6

Dependent Claim 16 words

The reaction product of claim 4 in which the alkylenepolyamine is diethylenetriamine, triethylenetetraamine, tetraethylenepentamine or pentaethylenehexamine.

Claim 7

Dependent Claim 103 words

The reaction product of claim 1 in which the hydrocarbylsuccinimide dimer is derived from two equivalent amounts of the reaction product of a hydrocarbylsuccinic anhydride and one molar amount of an amine selected from the group consisting of aromatic polyamines, in which at least one aromatic group is substituted directly onto the amine group, phenylenealkyleneamines in which the alkylene group is part of an aromatic system and heterocyclic amines in which the amine group is bound to a cyclic system containing at least one heteroatom which is oxygen, sulfur or nitrogen and the heterocyclic amine is a substituent of an alkylenepolyamine or phenylenepolyamine.

Claim 8

Dependent Claim 27 words

The reaction product of claim 1 in which the aldehyde is selected from the group consisting of paraformaldehyde, formaldehyde, salicylaldehyde, acetaldehyde, propionaldehyde, benzaldehyde, butylaldehyde, hexaldehyde, and heptaldehyde.

Claim 9

Dependent Claim 34 words

The reaction product of claim 1 in which the hydrocarbylsuccinimide, the aldehyde and the heteroatom-substituted benzoic acid react in a mole ratio of hydrocarbylsuccinimide to aldehyde to heteroatom-substituted benzoic acid of 1:0.1:0.01 to 1:4:4.

Claim 10

Dependent Claim 21 words

The reaction product of claim 1 in which the reactants are contacted at temperatures ranging from 80° C. to 200° C.

Claim 11

Dependent Claim 91 words

An oil composition of lubricating viscosity or grease composition prepared therefrom comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor multifunctional additive, ashless detergent, antioxidant and metal-surface protecting amount of a reaction product of a hydrocarbylsuccinimide dimer, an aldehyde and a heteroatom-substituted benzoic acid which has the following structural formula: ##STR10## where X is the heteroatomic group which is a hydroxyl, thiol or a primary or secondary nitrogenous group which is NH 2 or NHR 2 where R 2 is a hydrocarbon group.

Claim 12

Dependent Claim 91 words

An oil composition of lubricating viscosity or grease composition prepared therefrom comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor multifunctional additive, ashless detergent, antioxidant and metal-surface protecting amount of a reaction product of a hydrocarbylsuccinimide dimer, an aldehyde and a heteroatom-substituted benzoic acid which has the following structural formula: ##STR10## where X is the heteroatomic group which is a hydroxyl, thiol or a primary or secondary nitrogenous group which is NH 2 or NHR 2 where R 2 is a hydrocarbon group.

Claim 13

Dependent Claim 48 words

The composition of claim 10 in which the heteroatom substituted benzoic acid further comprises at least one hydrocarbon substituent group bonded to the benzene nucleus of the benzoic acid, the hydrocarbon group containing 1 to 60 carbon atoms which is an alkyl, aryl, alkenyl, aralkyl, or alkaryl group.

Claim 14

Dependent Claim 58 words

The composition of claim 10 in which the hydrocarbylsuccinimide is derived from two equivalent amounts of a hydrocarbylsuccinic anhydride and one molar amount of an alkylenepolyamine compound having the following structural formula: ##STR11## where A is an alkylene group, n and m are integers where n ranges from 0 to 7 and m ranges from 1 to 8.

Claim 15

Dependent Claim 102 words

The composition of claim 10 in which the hydrocarbylsuccinimide dimer is derived from two equivalent amounts of the reaction product of a hydrocarbylsuccinic anhydride and one molar amount of an amine selected from the group consisting of aromatic polyamines, in which at least one aromatic group is substituted directly onto the amine group, phenylenealkyleneamines in which the alkylene group is part of an aromatic system and heterocyclic amines in which the amine group is bound to a cyclic system containing at least one heteroatom which is oxygen, sulfur or nitrogen and the heterocyclic amine is a substituent of an alkylenepolyamine or phenylenepolyamine.

Claim 16

Dependent Claim 47 words

The composition of claim 12 in which the hydrocarbylsuccinimide is derived from maleic anhydride and an olefin selected from the group consisting of ethylene, propylene, isopropylene, butylene, isobutylene, pentylene, hexylene, heptylene, decylene, dodecylene and eicosene, higher olefinic hydrocarbons, polymers of said olefins and copolymers of said olefins.

Claim 17

Dependent Claim 21 words

The composition of claim 14 in which the alkylenepolyamine is selected from the group consisting of diethylenetriamine, triethylenetetramine, tetraethylenepentamine and pentaethylenehexamine.

Claim 18

Dependent Claim 26 words

The composition of claim 10 in which the aldehyde is selected from the group consisting of paraformaldehyde, formaldehyde, salicylaldehyde, acetaldehyde, propionaldehyde, benzaldehyde, butylaldehyde, hexcaldehyde and heptaldehyde.

Claim 19

Dependent Claim 33 words

The composition of claim 10 in which the hydrocarbylsuccinimide, the aldehyde and the heteroatom-substituted benzoic acid react in a mole ratio of hydrocarbylsuccinimide to aldehyde to heteroatom-substituted benzoic acid of 1:0.1:0.1 to 1:4:4.

Claim 20

Dependent Claim 20 words

The composition of claim 10 in which the reactants are contacted at temperatures ranging from 80° C. to 200° C.

Claim 21

Dependent Claim 36 words

The composition of claim 10 in which the reaction product is blended with the oil of lubricating viscosity or grease prepared therefrom in an amount ranging from 1% to 15% by weight of the total composition.

Claim 22

Independent Claim 97 words

A method of making an oil of lubricating viscosity or grease prepared therefrom comprising blending a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor multifunctional ashless detergent, antioxidant and metal-surface protecting amount of a reaction product of a hydrocarbylsuccinimide dimer, an aldehyde and a heteroatom-substituted benzoic acid which has the following structural formula: ##STR12## where X is the heteroatomic group which is a hydroxyl, thiol or a primary or secondary nitrogenous group selected from the group consisting of NH 2 and NHR 2 where R 2 is a hydrocarbon group.

Claim 23

Independent Claim 97 words

A method of making an oil of lubricating viscosity or grease prepared therefrom comprising blending a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor multifunctional ashless detergent, antioxidant and metal-surface protecting amount of a reaction product of a hydrocarbylsuccinimide dimer, an aldehyde and a heteroatom-substituted benzoic acid which has the following structural formula: ##STR12## where X is the heteroatomic group which is a hydroxyl, thiol or a primary or secondary nitrogenous group selected from the group consisting of NH 2 and NHR 2 where R 2 is a hydrocarbon group.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-11-03	1996-05-04	1996-11-03	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-11-03	2000-05-04	2000-11-03	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-11-03	2004-05-04	2004-11-03	$7700.00	Window Closed / Lapsed

Multifunctional ashless detergent additives for fuels and lubricants

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