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US 11,505,758 B2Granted
Use of calcium complex lubricating greases and calcium sulfonate complex lubricating greases for the lubrication of wire ropes
AssigneeFuchs Petrolub SE
InventorsRoman Müller, Stephan Müller
Life of this patent
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Abstract
The invention relates to the use of calcium complex and calcium sulfate complex lubricating grease compositions as lubricants for wire ropes. The invention further relates to a method for producing the wire ropes and to wire ropes provided with the lubricating grease composition.
Claims24
A method of use of a lubricating grease composition as a lubricant for wire ropes, the method comprising:
- applying the lubricant grease composition to a wire rope, the lubricating grease composition comprising:
- (i) a calcium sulfonate complex hybrid lubricating grease composition comprising a base oil, at least one overbased calcium salt of an organic sulfonic acid, at least one complexing agent and calcium carbonate having a calcitic structure, or
- (ii) a calcium complex hybrid lubricating grease composition comprising a base oil, at least one calcium soap of at least one fatty acid including a hydroxy fatty acid and at least one complexing agent, or
- (iii) a mixture of (i) and (ii),
- wherein the lubricating grease composition according to (i), (ii) and (iii) comprises in each case 10 to 50 weight percent wax and the wax is a hydrocarbon wax and has a congealing point above 70° C.,
- wherein as the at least one complexing agent at least acetic acid, dicarboxylic acids or phosphoric acid are used.
3 more elements
A method of applying:
- (i) a calcium sulfonate complex hybrid lubricating grease composition comprising a base oil, at least one overbased calcium salt of an organic sulfonic acid, at least one complexing agent and calcium carbonate in a calcitic structure, or
- (ii) a calcium complex hybrid lubricating grease composition comprising a base oil, at least one calcium soap of at least one fatty acid including a hydroxy fatty acid and at least one complexing agent, or
- (iii) a mixture of (i) and (ii),
- wherein the lubricating grease composition according to (i), (ii) and (iii) comprises in each case 10 to 50 weight percent wax, and the wax has a congealing point above 70° C., wherein as a complexing agent at least acetic acid, dicarboxylic acids or phosphoric acid are used,
- as a lubricant for wire ropes by application to the wires by means of spraying, spreading, injecting, dip coating, flow coating, roller application or powder coating.
2 more elements
A wire rope provided with:
- (i) a calcium sulfonate complex hybrid lubricating grease composition comprising a base oil, at least one overbased calcium salt of an organic sulfonic acid, at least one complexing agent and calcium carbonate in a calcitic structure, or
- (ii) a calcium complex hybrid lubricating grease composition comprising a base oil, at least one calcium soap of at least one fatty acid including a hydroxy fatty acid and at least one complexing agent, or
- (iii) a mixture of (i) and (ii),
- wherein the lubricating grease composition according to (i), (ii) and (iii) comprises in each case 10 to 50 weight percent wax, and the wax is a hydrocarbon wax and has a congealing point above 70° C., wherein as the at least one complexing agent at least acetic acid, dicarboxylic acids or phosphoric acid are used.
1 more element
Dependencies are inferred from the claim text.