Hydraulic fluid

C - Chemistry – Metallurgy – 10 – M

Patent

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C10M 105/74 (2006.01) C10M 105/50 (2006.01) C10M 105/56 (2006.01)

Patent

CA 1283400

ABSTRACT HYDRAULIC FLUID A polyphosphazene hydraulic fluid that remains solids-free on storage at temperatures down to -30°C over an extended period can be made by reacting a solution of sodium phenoxide, sodium m-methylphenoxide, sodium p-methylphenoxide and sodium trifluoroethoxide with a small stoichiometric excess of cyclic phosphonitrilic chloride oligomer, mainly trimer, and then reacting the remaining replaceable chlorine atoms with a solution of sodium trifluoroethoxide.

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