Lubricating grease composition
AssigneeNew Age Chemical, Inc.
InventorsJames A. Stuart, Jr., Douglas A. Wallace
Life of this patent
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Abstract
A lubricating grease composition including the combination of an oil base, a thickener, and bismuth preferably in the form of a bismuth carboxylate. The grease has excellent film strength, improved “anti-washout” capabilities, and, depending on the thickener used, may have no dropping point, meaning that the oil will not separate out at elevated temperatures.
Claims17
A lubricating grease composition comprising by weight 50%-95% of a vegetable oil base, 3%-30% of a thickener, and 0.1%-10% of a material selected from the group consisting of powdered bismuth and a bismuth carboxylate where the carboxyl radical contains from 6 to 16 carbon atoms.
A lubricating grease composition comprising by weight from 50%-95% of a vegetable oil selected from the group consisting of soy bean oil, canola oil, palm oil, rape seed oil and jojoba oil, from 3%-30% of bentonite clay, and from 0.01%-10.0% of a bismuth carboxylate where the carboxylate radical contains from 6 to 16 carbon atoms.
Dependencies are inferred from the claim text.