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US 2022/0112441 A1Published application
Lubricant composition for clamping devices
AssigneeDDP Specialty Electronic Materials US 9, LLC
InventorsTobias SCHLARB, Christian KRANENBERG
Life of this patent
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Abstract
A lubricating composition which, when used with a device for clamping an article, such as a chuck, produces excellent lubricating properties whilst remaining strongly adhered to metal parts in a clamping mechanism of the device and showing enhanced chemical and physical resistance to fluids such as cutting fluids.
Claims20
A lubricating composition comprising:
- a) from about 15 to about 55% by weight of one or more solid lubricant powders;
- b) from about 30 to about 65% by weight of one or more base oils;
- c) from about 0.2 to about 22% by weight of one or more adhesion improvers;
- d) from about 0.5 to about 5% by weight of one or more waxes;
- and
- e) from about 2.5 to about 12% by weight of one or more thickeners.
3 more elements
A lubricating grease or paste consisting essentially of:
- a) from about 15 to about 55% by weight of one or more solid lubricant powders comprising:
- a first solid lubricant comprising an alkaline earth metal carbonate;
- a second solid lubricant comprising an alkaline earth metal phosphate;
- and
- an optional third solid lubricant comprising a group BIB, IIIA, or IVA metal sulfide;
- b) from about 30 to about 65% by weight of one or more base oils chosen from mineral oils;
- c) from about 0.2 to about 22% by weight of one or more adhesion improvers;
- d) from about 0.5 to about 5% by weight of one or more waxes;
- and
- e) from about 2.5 to about 12% by weight of one or more thickeners,
- wherein the one or more adhesion improvers is chosen from a polyisobutylene having a number average molecular weight (Mn) of from about 200 to about 6000 g/mol, an ethylene/propylene copolymer, and combinations thereof;
- wherein the one or more waxes is chosen from beeswax, a synthetic hydrocarbon wax, and combinations thereof;
- and
- wherein the one or more thickeners is chosen from Li-12 hydroxystearate, Zinc Stearate, and combinations thereof.
11 more elements
Dependencies are inferred from the claim text.