SILOXANE-BASED LUBRICATING COMPOSITION, NOT RELEASING HYDROGEN, PREPARATION METHOD AND USE THEREOF

摘要

The invention concerns a lubricating composition, in the form of an oil-in-water emulsion, based on siloxane and not releasing hydrogen comprising: (a) a polydiorganosiloxane oil non-reactive to the lubricating properties having a dynamic viscosity of the order of 5.10<-2> to 30.10<2> Pa.s at 25 DEG C; (b) a reactive linear polydiorganosiloxane oil having per molecule at least two OH groups, said polydiorganosiloxane having a dynamic viscosity at 25 DEG C ranging between 5.10<-2> to 30.10<2> Pa.s; (c) a crosslinking agent soluble in the silicone phase comprising at least two functions capable of reacting with the reactive polydiorganicsiloxane oil (b); (d) a water soluble crosslinking agent; (e) a surfactant; (f) a condensation catalyst capable of catalysing the reaction of oil (b) with the crosslinking agent (c) and/or (d); and (g) water; compositions comprising a soluble polyorganosiloxane soluble in the silicone phase and bearing, before emulsification, condensable hydroxyl substituents being excluded.