Lubricating oil compositions containing saligenin derivatives

US6310009A · kind A · utility

Assignee

• The Lubrizol Corporation · US

Inventors

• Jody A. Kocsis · Chagrin Falls, US
• James P. Roski · Euclid, US
• Virginia A. Carrick · Chardon, US
• Richard A. Denis · Parma Heights, US
• Thomas J. Wolak · Mentor, US
• Gordon Lamb · Derby, GB
• Paul E. Adams · Willoughby Hills, US
• William D. Abraham · Powell, US
• Susan V. Cowling · Painesville, US

Key dates

• Filing date: Jan 16, 2001
• Grant date: Oct 30, 2001
• Expiry date: Jan 16, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2060/14
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A saligenin derivative such as the magnesium salt represented by the formula ##STR1## is useful as an additive for a lubricating composition. Preferably X is --CHO or --CH.sub.2 OH, and Y is --CH.sub.2 -- or --CH.sub.2 OCH.sub.2 --. R.sup.1 is a hydrocarbyl group containing 1 to 60 carbon atoms and m is 0 to 10. At least one aromatic ring should contain an R.sup.1 substituent and the total number of carbon atoms in all R.sup.1 groups should be at least 7.