Patent ID: 7255814
Filing Date: 2007-08-14
Classification: C08K

Abstract:
1. A flame retardant and stabilizer combined, for thermoplastic polymers, comprising from 50 to 90% by weight of a component A selected from the group consisting of a phosphinic salt of the formula (I), a diphosphinic salt of the formula (II), polymers of the formula (I), polymers of the formula (II) and mixtures thereof, where R R M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, or a protonated nitrogen base; m is 1 to 4; n is 1 to 4; x is 1 to 4, as component B, from 10 to 75% by weight of a nitrogen-containing synergist or of a phosphorus/nitrogen flame retardant, as component C, from 0.1 to 50% by weight of a basic or amphoteric oxide, hydroxide, carbonate, silicate, borate, stannate, mixed oxide/hydroxide, oxide/hydroxide/carbonate, hydroxide/silicate, hydroxide/borate, or a mixture thereof, as component D, from 0 to 5% by weight of a phosphonite of the structure where R is a mono- or polyvalent aliphatic, aromatic, or heteroaromatic organic radical, and R  or the two radicals R  where A is a direct bond, O, S, C  where R n is from 0 to 5, and m is from 1 to 4, as component E, from 0 to 5% by weight of an ester or salt of montan wax acid, and comprises, as component F, from 0.1 to 5% by weight of an N,N′-bispiperidinyl-1,3-benzenedicarboxamide and/or N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)-1,3-benzenedicarboxamide, the entirety of the components always being 100% by weight.