Patent ID: 8729170

Claim:
A curable silicone composition (A) useful for coating textile fabrics and comprising: (1) components (a-1) or (a-2): (a-1) corresponding to at least one polyorganosiloxane that may be cured by the action of a catalyst based on at least one organic peroxide, and (a-2) corresponding to a polyorganosiloxane blend that may be cured by polyaddition reactions, comprising: at least one organopolysiloxane (I) having an average of at least two silicon-bonded aliphatically unsaturated hydrocarbon substituents on the molecule, and at least one organopolyorganosiloxane (II) and/or at least one organosilicon crosslinker (II′) having an average of at least 2 silicon-bonded hydrogen on the molecule, (2) an effective amount of a curing catalyst (III) comprising: when component (a-1) is used, at least one organic peroxide, and when component (a-2) is used, at least one catalyst able to promote the reaction of the aliphatically unsaturated hydrocarbon substituents with SiH groups, (3) at least 10 weight parts, per 100 weight parts of the curable silicone composition, of an organopolysiloxane resin (IV) of formula MM Vi Q and consisting essentially of: (a) monovalent siloxane units M Vi of the formula R′R 2 SiO 1/2 ; (b) monovalent siloxane units M of the formula R 3 SiO 1/2 , and (c) tetravalent siloxane units Q of the formula SiO 4/2 wherein R denotes a monovalent hydrocarbon group and R′ denotes a vinyl group: (4) an organopolysiloxane resin (V) different from the said organopolysiloxane resin (IV) and comprising at least two different siloxane units chosen from those of M siloxane unit of formula R 3 SiO 1/2 , D siloxane unit of formula R 2 SiO 2/2 , T siloxane unit of formula RSiO 3/2 and Q siloxane unit of formula SiO 4/2 , wherein R denotes a monovalent hydrocarbon group, on condition that at least one siloxane unit being a T or Q siloxane unit and that at least one of the M, D and T siloxane units comprises an alkenyl group (5) at least one adhesion promoter (VI), (6) at least one reinforcing filler (VII), (7) at least one polydiorganosiloxane gum (XI) which is a linear or partially-branched homopolymer or copolymer having at least 2 alkenyl groups per molecule and the said gum having a viscosity of greater than 500,000 mPa·s at 25° C., (8) optionally, at least one curing inhibitor (VIII), (9) optionally, at least one coloration additive (IX), and (10) optionally, at least one additive (X) for improving the fire resistance, and wherein the polydiorganosiloxane gum (XI) is added at 1 to 40 parts by weight per 100 weight parts of the curable silicone composition.