Thomas J Hayden

US Patent:

20210087489, Mar 25, 2021

Filed:

Sep 16, 2020

Appl. No.:

17/022817

Inventors:

- Ludwigshafen am Rhein, DE
Thomas E. Hayden - Tarrytown NY, US
Eugene Scanlon - Tarrytown NY, US
Marinus Vaarkamp - Tarrytown NY, US

International Classification:

C10M 133/12
C10M 151/02
C10M 151/04

Abstract:

Disclosed herein is a process for lubricating an internal combustion engine with a lubricant composition that may be substantially ash free. The ashless lubricant composition described herein may comprise primary antioxidants, such as aminic diphenyl amines, alkylated phenyl-naphthyl amines, and phenolic antioxidants. The ashless lubricant composition described herein may also comprise sulfur containing products that may work as secondary antioxidants. Other components such as ashless antiwear components, dispersants, pour point depressants, friction modifiers, and metal deactivators may also be used to formulate an ashless lubricant composition according to an embodiment.