Lubricant for chain conveyor belts and its use

US6372698B1 · kind B1 · utility

Assignee

• Henkel Ecolab GmbH & Co. OHG · DE

Inventors

• Werner Strothoff · Sassenberg, DE
• Birgit Winkelmann · Krefeld, DE

Key dates

• Filing date: Sep 1, 1994
• Grant date: Apr 16, 2002
• Expiry date: Sep 1, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2050/01
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Chain conveyor lubricants, especially for the food industry, which form clear solutions in water and which contain in combinationa) at least one compound corresponding to formula (I):  in whichR1 is a saturated or mono- or polyunsaturated, linear or branched alkyl group containing 6 to 22 carbon atoms, which may optionally be substituted by an —OH, —NH2, —NH—, —CO—, halogen or a carboxyl group,R2 is a carboxyl group containing 2 to 7 carbon atoms,M is hydrogen, alkali metal, ammonium, an alkyl group containing 1 to 4 carbon atoms or a benzyl group, andn is an integer of 1 to 6;b) at least one organic carboxylic acid selected from monobasic or polybasic, saturated or mono- or polyunsaturated carboxylic acids containing 2 to 22 carbon atoms; and, optionally,c) at least one of water, additives, and auxiliaries.