Lubricant composition
AssigneeAfton Chemical Corporation
InventorsMark T. Devlin, John T. Loper, Roger M. Sheets, Todd M. Dvorak
Life of this patent
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Abstract
There is disclosed a lubricant composition comprising a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil. Methods of using the lubricant composition for preventing and/or reducing the deposit formation in an engine are also disclosed.
Claims8
A lubricant composition comprising:
- a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil to provide a reduced deposit formation in a TEOST MHT test, wherein the total amount of cyclobenzene includes the sum of dicyclobenzene, tricyclobenzene, tetracyclobenzene, and combinations thereof,
- wherein the dicyclobenzene is present in an amount of about 0.1 to about 2.0 wt. %, the tricyclobenzene is present in an amount of about 0.1 to about 1.5 wt. %, the tetracyclobenzene is present in an amount of about 0.01 to about 1.0 wt. %, and the total amount of cyclobenzene ranges from about 0.21 to about 4.5 wt. % relative to the total weight of the base oil.
A method for preventing and/or reducing the formation of deposits in an engine, comprising providing to the engine a lubricant composition comprising a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil wherein the total amount of cyclobenzene includes the sum of dicyclobenzene, tricyclobenzene, tetracyclobenzene, and combinations thereof;
- wherein the dicyclobenzene is present in an amount of about 0.1 to about 2.0 wt. %, the tricyclobenzene is present in an amount of about 0.1 to about 1.5 wt. %, the tetracyclobenzene is present in an amount of about 0.01 to about 1.0 wt. %, and the total amount of cyclobenzene ranges from about 0.21 to about 4.5 wt. %, relative to the total weight of the base oil.
A method of passing a TEOST-MHT test comprising:
- providing to a lubricant designed for engines a lubricant composition comprising a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil wherein the total amount of cyclobenzene includes the sum of dicyclobenzene, tricyclobenzene, tetracyclobenzene, and combinations thereof;
- wherein the dicyclobenzene is present in an amount of about 0.1 to about 2.0 wt. %, the tricyclobenzene is present in an amount of about 0.1 to about 1.5 wt. %, the tetracyclobenzene is present in an amount of about 0.01 to about 1.0 wt. %, and the total amount of cyclobenzene ranges from about 0.21 to about 4.5 wt. %, relative to the total weight of the base oil.
A method of lubricating at least one moving part with a lubricant composition, the method comprising providing to at least one moving part a lubricant composition comprising a base oil comprising a reduced total amount of cyclobenzene as compared to another base oil wherein the total amount of cyclobenzene includes the sum of dicyclobenzene, tricyclobenzene, tetracyclobenzene, and combinations thereof;
- wherein the dicyclobenzene is present in an amount of about 0.1 to about 2.0 wt. %, the tricyclobenzene is present in an amount of about 0.1 to about 1.5 wt. %, the tetracyclobenzene is present in an amount of about 0.01 to about 1.0 wt. %, and the total amount of cyclobenzene ranges from about 0.21 to about 4.5 wt. %, relative to the total weight of the base oil.
Dependencies are inferred from the claim text.