Patent ID: 8513352

Claim:
A curable composition, comprising a) at least one organic polymer, selected from polyethers and polyacrylic acid esters, wherein the organic polymer possesses at least one end group of the general Formula (I) -A n -R—SiXYZ (I) in which A stands for a divalent linking group, selected from the amide, carbamate, urea, imino, carboxylate, carbamoyl, amidino, carbonate, sulfonate and sulfinate group and from the oxygen atom and nitrogen atom, R is a divalent hydrocarbon group with 1 to 12 carbon atoms whose main hydrocarbon chain can optionally be interrupted by a hetero atom, and X, Y, Z independently of one other stand for C 1 -C 8 alkyl, C 1 -C 8 alkoxy or C 1 -C 8 acyloxy groups, wherein at least one of the groups is a C 1 -C 8 alkoxy or C 1 -C 8 acyloxy group, and n is 0 or 1, b) at least one poly(dialkylsiloxane) with at least one end group of the general Formula (I′) -A′ n′ R′—SiX′Y′Z′ (I′), in which A′ stands for a divalent linking group, selected from the amide, carbamate, urea, imino, carboxylate, carbamoyl, amidino, carbonate, sulfonate and sulfinate group and from the oxygen atom and nitrogen atom, R′ is a direct bond or a divalent hydrocarbon group with 1 to 12 carbon atoms whose main hydrocarbon chain can optionally be interrupted by a hetero atom, and X′, Y′, Z′ independently of one other are vinyl groups, C 1 -C 8 alkoxy or C 1 -C 8 acyloxy groups, wherein at least one of the groups is a vinyl group and at least one of the groups is a C 1 -C 8 alkoxy or C 1 -C 8 acyloxy group, and n′ is 0 or 1, and c) at least one flame retardant additive, selected from red phosphorus, organic phosphorous compounds, ammonium polyphosphate, metal hydroxides, expandable graphite, zinc borate and melamine salts.