Use of a crosslinkable silicone-based inverse emulsion for producing "breathable waterproof" coatings

Process for producing coatings that are waterproof and permeable to moisture vapor, on pliable supports, comprising:

• in applying to at least one of the faces of the support, so as to form a film, a silicone-based water-in-oil inverse emulsion comprising:
• a continuous oily silicone phase φs:
• which can be crosslinked into an elastomer and which comprises:
• at least one polyorganosiloxane (POS) that is crosslinkable by polyaddition, by polycondensation, by cationic means or by free-radical means;
• optionally at least one crosslinking organosilicic compound;
• optionally at least one catalyst for the crosslinking reaction;
• an aqueous phase φa comprising at least 20% by weight of water,
• at least one stabilizer,
• in seeing to it that the silicone phase φs crosslinks and that removal of water occurs.

A method for producing coatings that are waterproof and permeable to moisture vapor comprising a water-in-oil inverse silicone emulsion, comprising:

• a continuous oily silicone phase φs:
• which can be crosslinked into an elastomer
• and which comprises:
• A—at least one polyorganosiloxane (POS) that is crosslinkable by polyaddition, by polycondensation, by cationic means or by free-radical means;
• B—optionally at least one crosslinking organosilicic compound;
• C—optionally at least one catalyst for the crosslinking reaction;
• an aqueous phase φa,
• at least one stabilizer.

Film-forming water-in-oil inverse silicone emulsion, for producing coatings that are waterproof and permeable to moisture vapor, on pliable supports, which comprises:

• a continuous oily silicone phase φs:
• which can be crosslinked into an elastomer
• and which comprises:
• A—at least one polyorganosiloxane (POS) that is crosslinkable by polyaddition, by polycondensation, by cationic means or by free-radical means;
• B—optionally at least one crosslinking organosilicic compound;
• C—optionally at least one catalyst for the crosslinking reaction;
• an aqueous phase φa comprising at least 20% by weight of water,
• at least one stabilizer,
• at least one additive which promotes adhesion of the coating to the support and/or an improvement in the waterproof and moisture vapor-permeability properties,
• and/or at least one additive for optimizing the mechanical properties of the coating.