Invention Grant
- Patent Title: Friction and wear modifiers using solvent partitioning of hydrophilic surface-interactive chemicals contained in boundary layer-targeted emulsions
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Application No.: US15045749Application Date: 2016-02-17
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Publication No.: US09657251B1Publication Date: 2017-05-23
- Inventor: Robert Chaffee Richmond , Harry F. Schramm, Jr. , Francis G. Defalco
- Applicant: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
- Applicant Address: US DC Washington
- Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee Address: US DC Washington
- Agent Gerald M. Walsh; James J. McGroary
- Main IPC: C10M173/00
- IPC: C10M173/00 ; C07F5/04 ; C07D207/26 ; C10M169/00 ; C10M141/06 ; C10M125/26 ; C10M133/46
Abstract:
A wear and/or friction reducing additive for a lubricating fluid in which the additive is a combination of a moderately hydrophilic single-phase compound and an anti-wear and/or anti-friction aqueous salt solution. The aqueous salt solution produces a coating on boundary layer surfaces. The lubricating fluid can be an emulsion-free hydrophobic oil, hydraulic fluid, antifreeze, water, or a water-based lubricant. Preferably, the moderately hydrophilic single-phase compound is sulfonated castor oil and the aqueous salt solution additionally contains boric acid and zinc oxide. The emulsions produced by the aqueous salt solutions, the moderately hydrophilic single-phase compounds, or the combination thereof provide targeted boundary layer organizers that significantly enhance the anti-wear and/or anti-friction properties of the base lubricant by decreasing wear and/or friction of sliding and/or rolling surfaces at boundary layers.
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