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US07704931B2 Lubricant compositions stabilized with multiple antioxidants 有权
用多种抗氧化剂稳定的润滑剂组合物

Lubricant compositions stabilized with multiple antioxidants
Abstract:
A lubricant composition is disclosed that comprises lubricating oil and a mixture of at least two antioxidants, the first antioxidant being a secondary diarylamine and the second antioxidant being a substituted para-phenylenediamine. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least two antioxidants, the first antioxidant being a secondary diarylamine and the second antioxidant being a substituted para-phenylenediamine.
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