Stabilized blends containing friction modifiers
US9540581B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | May 21, 2012 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | May 21, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/66
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to functional fluid compositions containing friction modifiers, and specifically stable compositions containing friction modifiers with limited solubility in and/or limited compatibility with the functional fluids with which they are used. In particular the present invention deals with functional fluids used in internal combustion engines, such as engine oils, and friction modifiers derived from hydroxy-carboxylic acids, where the friction modifier is present in the functional fluid composition at levels that would otherwise cause the composition to be unstable and/or hazy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.