Stabilized organopolysiloxane oils

Abstract

This invention relates to a method for stabilizing organopolysiloxane oils containing triorganosiloxy groups in their terminal units, in which the organopolysiloxane oils are contacted with compounds having the formulas: R.sub.3.sup.' SiX or (R.sub.3.sup.' Si).sub.2 Y, where R' represents the same or different hydrocarbon radicals having from 1 to 18 carbon atoms and halogenated hydrocarbon radicals having from 1 to 18 carbon atoms; X is a halogen atom, a hydrogen atom, a hydroxyl group or a monovalent radical that consists of nitrogen, hydrogen, oxygen and from 0 to 6 carbon atoms and which is bonded to the silicon atom via an oxygen or a nitrogen atom; Y is a divalent radical selected from the group consisting of an oxygen atom, an NH radical, an NR" radical, or a divalent radical consisting of nitrogen, hydrogen, oxygen and from 0 to 6 carbon atoms, which is bonded to the silicon atoms via oxygen and/or nitrogen atoms; and R" is a hydrocarbon radical having from 1 to 8 carbon atoms. These stabilized oils may be used as power transmission fluids, especially in viscous clutches.

Dependencies are inferred from the claim text.