US2016304804A1PendingUtilityA1

Method for the preservation of a machine element and use of an anionic liquid

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Assignee: SCHAEFFLER TECHNOLOGIES AGPriority: Nov 21, 2013Filed: Nov 14, 2014Published: Oct 20, 2016
Est. expiryNov 21, 2033(~7.3 yrs left)· nominal 20-yr term from priority
Inventors:Andreas BoesmannAntje WesterholdPeter WasserscheidYasmin KorthMarcus WolfWalter HolwegerBenjamin PohrerEberhard SchlueckerMarc UerdingenNatalie Wehrum
C10N 2030/70C10M 2215/04C10M 2223/043C10N 2030/26C10N 2030/12C23F 11/141C10M 2223/04C10N 2020/077C23F 11/16C23F 11/167C10N 2030/06C10N 2040/04C10N 2040/02C10M 171/00C10N 2240/02C10N 2230/06C10N 2220/04
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Claims

Abstract

A method for the preservation of a machine element, in which, after the production and before the installation and/or start-up of the machine element, a preservative is applied on the surface thereof, wherein an ionic liquid is used as a preservative is provided.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 - 9 . (canceled) 
     
     
         10 . A method for preserving a machine element comprising:
 applying a preservative to a surface of the machine element after manufacture and prior to installation or start of operation of the machine element, the preservative being an ionic liquid.   
     
     
         11 . The method as recited in  claim 10  wherein the ionic liquid is used in pure form or as a preservative additive mixed with a lubricant. 
     
     
         12 . The method as recited in  claim 10  wherein the ionic liquid has an oil or fat solubility of at least 0.3% by weight. 
     
     
         13 . The method as recited in  claim 12  wherein the ionic liquid has an oil or fat solubility of up to 10% by weight. 
     
     
         14 . The method as recited in  claim 10  wherein a cationic portion of the ionic liquid includes quaternary ammonium ions or quaternary phosphonium ions or tertiary sulfur ions. 
     
     
         15 . The method as recited in  claim 10  wherein an anionic portion of the ionic liquid includes phosphate anions or borate anions or triflate anions or molybdate-containing anions or vanadate anions. 
     
     
         16 . The method as recited in  claim 11  wherein the ionic liquid is used as the preservative additive and an amount of ionic liquid in the lubricant is approximately 0.3% to 10% by weight. 
     
     
         17 . A method for using ionic liquid as a preservative for a machine element comprising:
 applying the ionic liquid to a surface of the machine element after manufacture and prior to installation or start of operation of the machine element, the preservative being an ionic liquid.   
     
     
         18 . The method as recited in  claim 17  wherein the ionic liquid is used in pure form or as a preservative additive mixed with a lubricant. 
     
     
         19 . The method as recited in  claim 18  wherein the ionic liquid has an oil or fat solubility of at least 0.3% by weight. 
     
     
         20 . The method as recited in  claim 19  wherein the ionic liquid has an oil or fat solubility of up to 10% by weight.

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