Grease composition for harnesses

Abstract

The present invention relates to a grease composition for use in harnesses, which comprises a thickening agent, a base oil and additives, wherein the base oil comprises a polyoxyalkylene glycol ether and the additives comprise a quinoline compound and a benzotriazole compound. The grease composition is quite excellent in the corrosion resistance, the oxidation stability and the compatibility with materials such as olefinic elastomer.

1 . A grease composition for use in harnesses, which comprises a thickening agent, a base oil and additives, wherein the base oil comprises a polyoxyalkylene glycol ether and the additives comprise a quinoline compound and a benzotriazole compound.  
   
   
       2 . The grease composition for use in harnesses as set forth in  claim 1 , wherein the thickening agent is at least one member selected from the group consisting of lithium soaps and bentonite modified with organic compounds.  
   
   
       3 . The grease composition for use in harnesses as set forth in  claim 1 , wherein the polyoxyalkylene glycol ether has a kinematic viscosity as determined at a temperature of 40° C. ranging from 30 to 400 mm 2 /s.  
   
   
       4 . The grease composition for use in harnesses as set forth in  claim 1 , wherein the content of the quinoline compound ranges from 0.1 to 10% by mass on the basis of the total mass of the grease composition and the content of the benzotriazole compound ranges from 0.1 to 10% by mass on the basis of the total mass of the grease composition.  
   
   
       5 . The grease composition for use in harnesses as set forth in  claim 2 , wherein the polyoxyalkylene glycol ether has a kinematic viscosity as determined at a temperature of 40° C. ranging from 30 to 400 mm 2 /s.  
   
   
       6 . The grease composition for use in harnesses as set forth in  claim 2 , wherein the content of the quinoline compound ranges from 0.1 to 10% by mass on the basis of the total mass of the grease composition and the content of the benzotriazole compound ranges from 0.1 to 10% by mass on the basis of the total mass of the grease composition.  
   
   
       7 . The grease composition for use in harnesses as set forth in  claim 3 , wherein the polyoxyalkylene glycol ether has a kinematic viscosity as determined at a temperature of 40° C. ranging from 30 to 400 mm 2 /s.  
   
   
       8 . The grease composition for use in harnesses as set forth in  claim 3 , wherein the content of the quinoline compound ranges from 0.1 to 10% by mass on the basis of the total mass of the grease composition and the content of the benzotriazole compound ranges from 0.1 to 10% by mass on the basis of the total mass of the grease composition.