Claims
- 1. A lubricant composition comprising a major amount of a normally liquid lubricant and a minor amount of a lubricant additive having antioxidant, high temperature solubility and thermal stability properties comprising a reaction product made by reacting, in equimolar proportions, an aldehyde; a benzotriazole which has the structural formula: ##STR8## where R.sub.1 is an alkyl group containing 1 to 60 carbon atoms or an alkyl group of 2 to 60 carbon atoms and containing at least one heteroatom which is oxygen, sulfur or nitrogen bonded to the alkyl group; and a polyether primary amine which has the structural formula ##STR9## where R.sub.10 is an alkyl-substituted phenyl group containing 14 to 26 carbon atoms, n is an integer ranging from 2 to 10 and R.sub.11 is independently hydrogen or methyl.
- 2. The lubricant composition of claim 1 in which the aldehyde is formaldehyde.
- 3. The lubricant composition of claim 1 in which the hydrocarbyl group designated as R.sub.1 is methyl.
- 4. The lubricant composition of claim 1 in which the lubricant is a mineral oil or synthetic oil or a mixture thereof.
- 5. The lubricant composition of claim 4 in which the lubricant composition is a grease comprising the mineral or synthetic oil or mixture thereof and a thickening agent.
- 6. The lubricant composition of claim 1 in which the aldehyde is formaldehyde and the benzotriazole is tolyltriazole.
- 7. The lubricant composition of claim 1 in which the polyether primary amine is derived from nonylphenol ethoxylates.
Parent Case Info
This is a continuation-in-part application of U.S. application Ser. No. 07/735,125, filed on Jul. 23, 1991, now abandoned, and which is incorporated herein by reference in its entirety.
US Referenced Citations (5)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
735125 |
Jul 1991 |
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