Borated adducts of diamines and alkoxides as multifunctional lubricant additives and compositions thereof

Claim 2

A reaction product produced by (1) reacting a hyrocarbyl or hydrocarbyloxydiamine or mixtures thereof with an alkoxide or mixtures thereof in molar ratios of from about 2:1 to about 1:2 at temperatures of from about 70° to 250° C. followed by (2) borating the product of (1) with substantially stoichiometric amounts of a boron compound or up to a 100% excess of a boron compound selected from the group consisting essentially of boric acid, a trialkyl boron compound or an ester of a boric acid.

Claim 3

The reaction product of claim 1 wherein the hydrocarbyl diamine employed is selected from those having the following general formula R--NH--R.sup.1 --NH.sub.2 where R is C 8 -C 20 hydrocarbyl or hydrocarbyloxy and R 1 is C 2 -C 4 hydrocarbylene.

Claim 4

The reaction product of claim 2 wherein R is alkyl or hydrocarbyloxy and R 1 is C 2 or C 3 hydrocarbylene.

Claim 5

The reaction product of claim 1 wherein the alkoxide is an epoxyalkane and has the following general formula ##STR2## where R 2 is C 6 -C 20 hydrocarbyl and R 3 is hydrogen or C 1 -C 6 hydrocarbyl.

Claim 6

The reaction product of claim 2 wherein the diamine is selected from the group consisting of N-coco-1,3-propylenediamine; N-oleyl-1,3-propylenediamine; N-tallow-1,3-propylenediamine; N-soya-1,3-propylenediamie; N-oleyl-1,2-ethylenediamine; N-tallow-1,2-ethylenediamine; N-soya-1,2-ethylenediamine; N-coco-1,2-ethylenediamine or N-triisodecyloxy-1,3-propylenediamine and mixtures thereof.

Claim 7

The reaction product of claim 4 wherein the epoxyalkane is selected from the group consisting of 1,2-epoxypentadecane; 1,2-epoxyhexadecane; 1,2-epoxyheptadecane; 1,2-epoxyoctadecane; 1,2-epoxydodecane; 1,2-epoxytetradecane; epoxidized isobutylenetrimer; epoxidized propylenetetramer or 1,2-epoxyoctadecane and mixtures thereof.

Claim 8

The reaction product of claim 1 wherein said product is the borated reaction product of N-oleyl-1,3-propylenediamine and 1,2-epoxyhexadecane.

Claim 9

The reaction product of claim 1 wherein said product is the borated reaction product of N-coco-1,3-propylenediamine and 1,2-epoxyhexadecane.

Claim 10

A lubricant composition comprising a major proportion of a hydrocarbyl oil of lubricating viscosity or grease prepared therefrom, and an effective multifunctional and friction reducing amount of a product prepared by (1) reacting a hydrocarbyl diamine or mixtures thereof and an alkoxide or mixtures thereof at temperatures of from about 70° to 250° C. in molar ratios of from about 2:1 to about 1:2, and (2) reacting the intermediate product of (1) with a borating agent selected from the group consisting of boric acid, a trialkyl boron compound or an ester of a boric acid.

Claim 11

A lubricant composition comprising a major proportion of a hydrocarbyl oil of lubricating viscosity or grease prepared therefrom, and an effective multifunctional and friction reducing amount of a product prepared by (1) reacting a hydrocarbyl diamine or mixtures thereof and an alkoxide or mixtures thereof at temperatures of from about 70° to 250° C. in molar ratios of from about 2:1 to about 1:2, and (2) reacting the intermediate product of (1) with a borating agent selected from the group consisting of boric acid, a trialkyl boron compound or an ester of a boric acid.

Claim 12

The composition of claim 9 wherein the hydrocarbyl diamine has the following general formula R--NH--R.sup.1 --NH.sub.2 where R is C 8 -C 20 hydrocarbyl and R 1 is C 2 -C 4 hydrocarbylene.

Claim 13

The composition of claim 9 wherein said hydrocarbyl alkoxide is an epoxyalkane having the following general formula ##STR3## where R 2 is C 8 -C 20 hydrocarbyl and R 3 is hydrogen or C 2 -C 8 hydrocarbyl.

Claim 14

The composition of claim 9 wherein the product is the borated reaction product of N-coco-1,3-propylenediamine and 1,2-epoxyhexadecane.

Claim 15

The composition of claim 9 wherein the product is the borated reaction product of N-oleyl-1,3-propylenediamine and 1,2-epoxyhexadecane.

Claim 16

The composition of claim 11 comprising a product prepared from a mixture of said hydrocarbyl diamines and a mixture of said epoxyalkanes.

Claim 17

The composition of claim 9 comprising a lubricant selected from a suitable oil of lubricating viscosity.

Claim 18

The composition of claim 15 wherein the lubricating oil is a mineral oil.

Claim 19

The composition of claim 15 wherein the lubricating oil is a synthetic oil.

Claim 20

The composition of claim 15 wherein the lubricating oil is a mixture of mineral oil and synthetic oil.

Claim 21

The composition of claim 9 wherein the lubricant is a grease.

Claim 22

The composition of claim 19 wherein the grease is thickened by a thickener having at least by a minor proportion of lithium or calcium hydroxyl-containing carboxylate soap thickener therein.

Claim 23

The composition of claim 9 wherein said lubricant contains an additional component selected from the group consisting of metallic phenates or sulfonates, zinc dialkyl or diaryl dithiophosphates or esters, succinimide-type ashless dispersants or mixtures thereof.

Claim 24

The composition of claim 10 wherein the diamine is selected from the group consisting of N-coco-1,3-propylenediamine; N-oleyl-1,3-propylenediamine; N-tallow-1,3-propylenediamine, N-soya-1,3-propylenediamine, N-oleyl-1,3-propylenediamine, N-tallow-1,2-ethylenediamine; N-soya-1,2-ethylenediamine; N-coco-1,2-ethylenediamine or N-triisodecyloxy-1,3-propylenediamine and mixtures thereof.

Claim 25

The composition of claim 11 wherein the alkoxide or epoxyalkane is selected from the group consisting of 1,2-epoxypentadecane, 1,2-epoxyhexadecane; 1,2-epoxyheptadecane; 1,2-epoxyoctadecane; 1,2-epoxydodecane; 1,2-epoxytetradecane; epoxidized isobutylenetrimer; epoxidized propylenetetramer and epoxidized 1,2-epoxyoctadecane and mixtures thereof.

Claim 26

A method for reducing fuel consumption in an internal combustion engine comprising treating the moving surfaces thereof with a composition comprising a major amount of a hydrocarbyl oil of lubricating viscosity or grease prepared therefrom containing a minor effective multifunctional friction reducing or fuel reducing amount of a reaction product as described in claim 9.