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US 4,786,425 AGranted
Additive for lubricants and hydrocarbon fuels comprising reaction products of olefins, sulfur, hydrogen sulfide and polymeric succinimide compounds
AssigneeMobil Oil Corporation
InventorsAndrew G. Horodysky, Derek A. Law
Life of this patent
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Abstract
Disclosed is an additive composition for lubricants and hydrocarbon fuel compositions formed by reacting an olefin, elemental sulfur, hydrogen sulfide, and a polymeric succinimide compound. The reaction product is effective when mixed in desired proportions with lubricants and with hydrocarbon fuels.
Claims18
A process for making an additive for lubricants comprising co-reacting:
- (a) an olefin
- (b) sulfur
- (c) hydrogen sulfide;
- and
- (d) a polymeric succinimide selected from the group consisting of the reaction products of polymeric succinic anhydride with one or more reactants selected from the group consisting of:
- (a) polyethylene amines selected from the group consisting of diethylene triamines, triethylenetetramine, and tetraethylenepentamine;
- (b) hydroxyl containing amines, and;
- (c) polyols in conjunction with (a) or (b) selected from the group consisting of pentaerythritol, and trimethylol propane
- at a temperature between about 130.degree. C. and about 200.degree. C. and a pressure of about 0 psig to about 900 psig, the reactants being reacted in a molar ratio of olefin, polymeric succinimide, and hydrogen sulfide to sulfur of about 3 to about 0.5, about 0.001, to about 0.4, and about 0.5 to about 0.7, respectively.
6 more elements
A process for making an additive for lubricants comprising co-reacting:
- (a) an olefin
- (b) sulfur
- (c) hydrogen sulfide;
- and
- (d) a polymeric succinimide selected from the groupconsisting of the reaction product of polyisobutenylsuccinic anhydride with one of more reactants selected from the group consisting of:
- (a) polyethylene amines selected from the group consisting of diethylene triamine, triethylenetetramine, and tetraethylenepentamine;
- (b) hydroxyl containing amines, and;
- (c) polyols in conjunction with (a) or (b) selected from the group consisting of pentaerythritol, and trimethylol propane
- at a temperature between about 130.degree. C. and about 200.degree. C. and a pressure of about 0 psig to about 900 psig, the reactants being reacted in a molar ratio of olefin, polymeric succinimide, and hydrogen sulfide to sulfur of about 3 to about 0.5, about 0.001, to about 0.4, and about 0.5 to about 0.7, respectively.
6 more elements
Dependencies are inferred from the claim text.