Lubricant compositions
AssigneeAfton Chemical Corporation
InventorsMark T. Devlin, Helen T. Ryan
Life of this patent
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Abstract
Lubricant compositions having improved anticorrosion performance comprising an extreme pressure compound comprising a sulfur-containing compound, an antiwear compound comprising a phosphorous-containing compound, an alkylene amine friction modifying compound, a dispersant compound containing basic nitrogen, and a diluent or base oil as applicable, wherein any of compounds other than the diluent or base oil can be the same or different compounds. These lubricant compositions provide improved anticorrosion resistance and fatigue performance, which prolongs service lives of lubricated parts, especially those used in outdoor applications.
Claims27
An additive concentrate, comprising:
- a) an extreme pressure compound comprising a sulfur-containing compound;
- b) an antiwear compound comprising a phosphorus-containing compound;
- c) a friction modifying compound comprising an alkylene amine compound comprising an N-aliphatic hydrocarbyl-substituted trimethylenediamine, wherein the N-aliphatic hydrocarbyl-substituent comprises at least one straight chain aliphatic hydrocarbyl group free of acetylenic unsaturation and having about 14 to about 20 carbon atoms;
- d) a dispersant compound containing basic nitrogen, wherein the dispersant compound comprises a polyolefin amide compound;
- and
- e) a diluent oil,
- wherein any of compounds a), b), c), or d) can be the same or different compounds.
A composition, comprising:
- a) an extreme pressure compound comprising a sulfur-containing compound;
- b) an antiwear compound comprising a phosphorus-containing compound;
- c) a friction modifying compound comprising an alkylene amine compound comprising an N-aliphatic hydrocarbyl-substituted trimethylenediamine, wherein the N-aliphatic hydrocarbyl-substituent comprises at least one straight chain aliphatic hydrocarbyl group free of acetylenic unsaturation and having about 14 to about 20 carbon atoms;
- d) a dispersant compound containing basic nitrogen, wherein the dispersant compound comprises a polyolefin amide compound;
- and
- e) base oil,
- wherein any of compounds a), b), c), or d) can be the same or different compounds.
A method of manufacturing a composition comprising blending a) base oil;
- b) an extreme pressure compound comprising a sulfur-containing compound;
- c) an antiwear compound comprising a phosphorus-containing compound that is the same compound or a different compound as the sulfur-containing compound;
- d) a friction modifying compound comprising an alkylene amine compound;
- and e) a dispersant compound containing basic nitrogen, wherein the dispersant compound comprises a polyolefin amide compound.
Dependencies are inferred from the claim text.