Patent · US Active

Hydraulic fluid compositions

US8809241B2 · kind B2 · utility

0Cited by
11References
12Claims
0Family size

Inventor

Key dates

Filing dateSep 4, 2013
Grant dateAug 19, 2014
Priority date—
Expiry dateSep 4, 2033

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.