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US 6,207,072 B1Granted
Cooling medium for use at elevated temperatures
AssigneeBayer Aktiengesellschaft
InventorsAziz El Sayed, Detlev Joachimi, Hartwig Meier, Karsten-Josef Idel
Life of this patent
Estimating the term…
Abstract
A coolant containing 35-65 wt. % polyethylene glycol and 65-35 wt. % ethylene glycol, which is especially useful for cooling motor vehicle engines.
Claims10
A cooling medium consisting essentially of:
- A) 35-65 wt. % of a polyethylene glycol having an average molar mass of between 285 and 420 g/mol,
- B) 35-65 wt. % of ethylene glycol, and
- C) optionally, at least one stabilizer.
A cooling medium consisting of:
- A) 35-65 wt. % of a polyethylene glycol having an average molar mass of between 285 and 420 g/mol,
- B) 35-65 wt. % of ethylene glycol, and
- C) optionally, at least one stabilizer.
Dependencies are inferred from the claim text.