Environmentally compatible hydraulic fluid

Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic oxygen compound

Reexamination Certificate

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Details

C508S110000, C508S429000

Reexamination Certificate

active

07741259

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.

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Supplementary European Search Report, App. No. EP 06 77 4168, p. 1-13, completed Nov. 20, 2009 in Munich.

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