Environmentally compatible hydraulic fluid
US7741259B2 · kind B2 · utility
4Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Mar 20, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/255
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Environmentally safe and compatible fluids that are useful as lubricants, and especially as hydraulic fluids, in mobile machinery are formulated to be non-contaminating when accidentally contacted with surrounding vegetation, and removable from vegetation by simply washing the vegetation with tap water. The fluids of the invention are polyalkylene glycol-based and having an ethylene oxide to propylene oxide ratio of from about 68:32 to about 78:22.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.