Patent classifications
C
CHEMISTRY; METALLURGY
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C10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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C10M
LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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129/00
Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
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C10M129/02
having a carbon chain of less than 30 atoms
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C10M129/10
having hydroxy groups bound to a carbon atom of a six-membered aromatic ring
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C10M129/14
containing at least 2 hydroxy groups
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C10M129/14

Antioxidants with high mono-alkylated diphenylamine content
12606769 · 2026-04-21 · ·

Lubricating oil composition is provided. The composition includes several components including a major amount of a base oil, a mixture of alkylated diphenylamines having a weight ratio of mono-alkylated diphenylamine to di-alkylated diphenylamine ranging from 0.6 to 4.0, and a molybdenum or sulfur additive that provides synergistic enhancement of oxidation stability in combination with the mixture of alkylated diphenylamines.

Antioxidants with high mono-alkylated diphenylamine content
12606769 · 2026-04-21 · ·

Lubricating oil composition is provided. The composition includes several components including a major amount of a base oil, a mixture of alkylated diphenylamines having a weight ratio of mono-alkylated diphenylamine to di-alkylated diphenylamine ranging from 0.6 to 4.0, and a molybdenum or sulfur additive that provides synergistic enhancement of oxidation stability in combination with the mixture of alkylated diphenylamines.