Water-based lubricants

US8809243B2 · kind B2 · utility

Assignee

• Klüber Lubrication München KG · DE

Inventors

• Martin Schmid-Amelunxen · Weingarten, DE
• Martin Schweigkofler · Friedberg, DE
• Thomas Kilthau · Geretsried, DE
• Jochen Muehlemeier · Dachau, DE

Key dates

• Filing date: Aug 23, 2010
• Grant date: Aug 19, 2014
• Expiry date: Aug 23, 2030

Classification

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

Abstract

Water-based lubricants for the lubrication of frictional partners in drive elements, as well as their use. In particular, a water-based lubricant that contains 5 to 80% by weight of water-soluble polyalkylene glycol that is selected from the group that is composed of statistically distributed polyoxyethylene units and/or polyoxypropylene units and/or other polyoxyalkylene components, a block polymer that that is composed of polyoxyethylene units and/or polyoxypropylene units and/or other polyoxyalkylene components, 0.5 to 20% by weight of foaming or non-foaming emulsifiers from the class of anionic, non-ionic, or cationic surfactants, water-soluble or water-emulsifiable carboxylic acid esters, 0.5 to 50% by weight of anti-icing additives, selected from the group that is composed of alkylene glycol, glycerol, salts or ionic liquids, 0.05 to 10% by weight of corrosion additives, 0.001 to 1% by weight of additives for preventing the formation of foam, and 0.05 to 5% by weight of friction-reducing agents and water added to make 100% by weight.