Lubricating grease composition

US6265362A · kind A · utility

Assignee

• Kluber Lubrication Munchen SE & Co. KG · DE

Inventors

• Dirk Loderer · Gilching, DE
• Dieter Sohn · Germering, DE
• Herbert Kardinal · Zorneding, DE

Key dates

• Filing date: Dec 7, 1998
• Grant date: Jul 24, 2001
• Expiry date: Dec 7, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A lubricating grease composition that is a mixture of PA1 (a) a hydrocarbon-based oil, PA1 (b) a perfluoro-polyalkyl ether oil of the formula EQU A'--(O--CF.sub.2).sub.v --(O--C.sub.2 F.sub.4).sub.w --(O--C.sub.3 F.sub.6).sub.x --(O--C.sub.4 F.sub.8).sub.y --(O--CF.sub.2 CF(CF.sub.3)).sub.z --O--A" PA1 in which PA2 A' is --CF.sub.3, --C.sub.2 F.sub.5, --C.sub.3 F.sub.7, or --CF.sub.2 T where T is H or Cl, PA2 A" is A' or --CF.sub.3, C.sub.2 F.sub.5, --C.sub.3 F.sub.7, or --CF.sub.2 T, where T is H or Cl.sub.1 and PA2 v, w, x, y and z are whole numbers .gtoreq.0, PA1 (c) a dicarbamide as a thickening agent, PA1 (d) typical additives and PA1 (e) organic and inorganic solid lubricants. A process for the production of the lubricating grease composition is also provided.