DINONYLOXYDIMETHYLSILOXANE AS VISCOUS ADDITIVE TO LUBRICATING OILS Russian patent published in 1994 - IPC

FIELD: chemistry of organosilicon compounds. SUBSTANCE: the product: C₉H₁₉O{(CH₃)₂SiO}₁₅C₉H₁₉, the yield is 96% ; the viscosity is 14 and 900 mm²/s at -25 C and -53 C; the solidification temperature is -65 C; the flash temperature is 220 C; and the silicon content is 5%. Reagent 1: (CH₃)₂SiCl₂. Reagent 2: water. Reagent 3: C₉H₁₉OH. Reaction conditions: xylene, potassium hydroxide, 150 C. EFFECT: improved properties of the viscous additive. 1 tbl