Patent ID: 7851023
Filing Date: 2010-12-14
Classification: C08K,D06M,D06N

Abstract:
1. A method of conferring on a textile material and/or threads, fibers and/or filaments constituting said textile material properties of water repellency and impermeability which are durable without substantially reducing the intrinsic respirability of said textile material, said method comprising coating said textile material and/or said threads, fibers or filaments with a crosslinkable liquid silicone formulation comprising: A—a system for generating a film-forming silicone network containing at least one polyorganosiloxane (POS) resin which crosslinks through polycondensation and which exhibits, per molecule, at least two different siloxyl units selected from those of types M, D, T, Q, one of the units being a T unit, and at least three hydrolyzable/condensable groups of types OH and/or OR B—a system promoting anchorage of said network to the surface of the textile material, consisting of: C—a functional additive consisting of: D—optionally a non-reactive additive system consisting of: (i) at least one organic solvent and/or one non-reactive organosilicic compound; (ii) and/or water; with the condition according to which there are employed (in parts given by weight): wherein (i) the coating step is conducted in such a manner that the silicone formulation crosslinks around the threads, fibers and/or filaments constituting the textile material and forms around them a crosslinked silicone sheath, and (ii) this confers on said textile material water repellency and impermeability which are durable, without substantially reducing the intrinsic respirability of the textile material wherein constituent A is a mixture A-3: (i) of at least one resin having, in its structure, at least two different siloxyl units selected from those of formula (R