Hydraulic fluid compositions
US8563484B2 · kind B2 · utility
2Cited by
11References
30Claims
0Family size
Inventor
Key dates
| Filing date | Mar 10, 2011 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Oct 17, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0396
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous hydraulic fluid composition comprising a first lubricant comprising at least one phospholipid and a second lubricant comprising an alkoxylate salt. The aqueous hydraulic fluid composition contains less than about 20% by weight (preferably none or substantially none) of an oil selected from the group consisting of mineral oils, synthetic hydrocarbon oils, and mixtures thereof. The use of alkoxylate salts provides increased lubricity and also acts as an emulsion stabilizer for the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.