Water-Based Lubricants for Conveyor Belts

Abstract

The invention relates to water-based lubricants for conveyor belts. More particularly, the invention relates to water-based lubricants for conveyor belts for the drinks industry.

1 . Water-based lubricant composition for conveyor belts, comprising:
 4% to 30% by weight of at least one viscosifying component,   0.05% to 10% by weight of preservative substances that provide protection from soiling,   water to 100% by weight,   characterized in that the viscosifying component is a water-soluble carboxylic ester, or a mixture of a water-soluble carboxylic ester and a low molecular weight polyalkylene glycol.   
     
     
         2 . Lubricant composition according to  claim 1 , further comprising one or more components selected from the group consisting of:
 0.05% to 5% by weight of antiwear agent,   0.05% to 15% by weight of antifreeze,   0.05% to 15% by weight of anticorrosive,   0.05% to 5% by weight of antiwear agent,   0.05% to 5% by weight of defoamer,   0.05% to 5% by weight of wetting agent,   0.05% to 5% by weight of biocides,   0.005% to 2% by weight of fragrances.   
     
     
         3 . Lubricant composition according to  claim 1 , characterized in that the preservative substances that provide protection from soiling are a compound or mixture selected from the group consisting of foaming or non-foaming emulsifiers from the class of ionic and nonionic surfactants. 
     
     
         4 . Lubricant composition according to  claim 2 , characterized in that the antiwear agent is a water-soluble compound containing sulfur, phosphorus and/or nitrogen. 
     
     
         5 . Lubricant composition according to  claim 2 , characterized in that the antifreeze is a compound selected from the group consisting of mono- and polyhydric alcohols and derivatives thereof. 
     
     
         6 . Lubricant composition according to  claim 2 , characterized in that the anticorrosive is a compound selected from the group consisting of neutralized and non-neutralized carboxylic acids, neutralized phosphoric acids and/or phosphoric acid derivatives, benzoic acid and/or benzoic acid derivatives, triazole, alcoholamines, glycolamines. 
     
     
         7 . Lubricant composition according to  claim 2 , characterized in that the defoamer is a compound selected from the group consisting of polysiloxanes or polymers of acrylate derivatives, the wetting agent used is a compound selected from the group consisting of ionic and nonionic surfactants, the biocide used is isothiazolone derivatives, and the fragrance used is a compound selected from the group consisting of alcohols, aldehydes, ketones, esters, alkenes, copper salts and/or zinc salts. 
     
     
         8 . Use of the lubricant composition according to  claim 1  in undiluted form. 
     
     
         9 . Use of the lubricant composition according to  claim 1  in a dilution of 1:1000. 
     
     
         10 . Use of the lubricant composition according to  claim 2  in undiluted form. 
     
     
         11 . Use of the lubricant composition according to  claim 2  in a dilution of 1:1000.