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US 11,208,609 B2Granted
Lubricating grease composition
AssigneeDDP Specialty Electronic Materials US 9, LLC
InventorsTobias Schlarb, Christian Kranenberg
Life of this patent
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Abstract
A lubricating grease composition, and more specifically, to a lubricating grease composition which, when used with an article clamping device, such as a chuck, produces excellent lubricating properties whilst remaining strongly adhered to metal parts in the clamping mechanism of the device and showing enhanced chemical and physical resistance to fluids such as cutting fluids with which they come into contact.
Claims20
A lubricating grease composition comprising:
- a) from 20.69 to 50.8% by weight of one or more solid lubricants powders comprising hydrated tricalcium phosphate and calcium carbonate treated with stearic acid;
- b) from 14.3 to 36.5% by weight of or one more base oils comprising mineral oil;
- c) from 7.5 to 9.9% by weight of one or more adhesion improver comprising polyisobutylene;
- d) from 3 to 4.8% by weight of one or more waxes comprising beeswax and synthetic hydrocarbon wax;
- e) from 19 to 40.6% by weight of one or more thickeners comprising lithium-12-hydroxystearate and zinc stearate;
- and
- an optional corrosion inhibitor present in an amount of from 0 to 1% by weight.
4 more elements
Dependencies are inferred from the claim text.