Lubricant composition

US11046906B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Philippe Rabbat · New York, US
• Mary Elizabeth Dery · Putnam Valley, US
• Bridgett Rakestraw · Brewster, US
• Sai P. Shum · Jamesburg, US
• Paul A. Odorisio · Leonia, US

Key dates

• Filing date: Apr 23, 2020
• Grant date: Jun 29, 2021
• Expiry date: Apr 23, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2050/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A lubricant composition includes a base oil present in an amount of greater than 70 parts by weight per 100 parts by weight of the lubricant composition and an antioxidant. The antioxidant has the structure: wherein each X is independently C-A or N, so long as at least one X is N but no more than two of X are N. Moreover, A is H, cyano or an electron donating group that: (1) has an atom having at least one lone pair of electrons that is bonded directly to the aromatic ring; or (2) is an aryl group or alkyl group. Further, each R is independently H, an alkyl group, or aryl group and each R′ is independently an alkyl group or an aryl group.