The invention concerns a method for preparing a lubricating composition,
characterised in that it comprises mixing two previously prepared
oil-in-water emulsions (A) and (B): the prior emulsion (A) comprises: (a)
at least a non-reactive linear polyorganosiloxane oil comprising per
molecule at least 2% in number of organic substituents bound to the
silicon atoms which are aryl, alkylarylene and/or arylenealkyl radicals;
(b) at least a polyorganosiloxane resin bearing hydroxyl groups and
comprising at least two different siloxyl units selected among those
formula (R.sup.1).sub.3SiO.sub.1/2(M), (R.sup.1).sub.2SiO.sub.2/2(D),
R.sup.1SiO.sub.3/2(T) and SiO.sub.4/2(Q), one at least of said units
being a unit T or Q, R.sup.1 representing an organic substituent; (c) at
least a crosslinking agent soluble in the silicone phase comprising at
least two functions capable of reacting with the polyorganosiloxane
resin(s) (b); (d) a condensation catalyst capable of catalysing the
reaction of the constituent (b) with the constituent (c); (e) a
surfactant; and (f) water; the prior emulsion (B) comprises: (a') at
least a reactive linear polyorganosiloxane oil comprising at least two OH
groups per molecule, and the constituents (b), (c), (d), (e) and (f)
mentioned above: each of the prior emulsions (A) and (B) comprises: 5 to
95 parts by weight of constituent (a) or (a'); 0.5 to 50 parts of
constituent (b); 0.1 to 20 parts of constituent (c); 0.05 to 10 parts of
constituent (d); for 100 parts of the sum (a)+(b)+(c)+(d) or
(a')+(b)+(c)+(d); the amounts of surfactant and water being sufficient to
obtain an oil-in-water emulsion; and the weight ratio emulsion
(A)/emulsion (B) ranges between 1.5 and 4.