Lubricating composition containing an oxyalkylated aromatic polyol compound

US10501701B2 · kind B2 · utility

Assignee

• The Lubrizol Corporation · US

Inventors

• Kamalakumari K. Salem · Mentor, US
• David J. Moreton · Heysham, GB
• Mohamed G. Fahmy · Eastlake, US
• Gary M. Walker · Derby, GB
• James P. Roski · Euclid, US
• Yanshi Zhang · Solon, US
• Adam Cox · Novelty, US
• W. Preston Barnes · Greenville, US
• Ewan E. Delbridge · Powell, US

Key dates

• Filing date: Dec 3, 2015
• Grant date: Dec 10, 2019
• Expiry date: May 6, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/255
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The disclosed technology provides a lubricating composition comprising an oil of lubricating viscosity and 0.01 wt % to 10 wt % of an oxyalkylated aromatic polyol compound, wherein the aromatic compound has at least one alkoxy group represented by —OR1 group, R1 is hydroxyalkyl, or a (poly)ether group, and either: at least one hydroxyl group, or at least one alkoxy group represented by OR1 group, where R1 is alkyl, or a (poly)ether group, or at least one oxyalkyl group represented by —OR1, where R1 is hydroxyalkyl or a (poly)ether group. The disclosed technology further relates to a method of lubricating a mechanical device (such as an internal combustion engine) with the lubricating composition. The disclosed technology further relates to the use of the oxyalkylated aromatic polyol compound in the lubricating composition to a passenger car internal combustion engine at least one of (i) control of fuel economy, (ii) control of corrosion, (iii) cleanliness, and (iv) control of bore wear.