Flame-Retardant Polyamide Composition

摘要

The invention relates to a flame-retardant polyamide composition, containing as component A 1 to 96% by weight of one or more thermoplastic polyamides, as component B 2 to 25% by weight of dialkylphosphinic salt of the formula (I) and/or a diphosphinic salt of the formula (II) and/or the polymers thereof, wherein R1, R2 are the same or different C1-C6 alkyl, linear or branched or H: R3 C1-C10 alkylene, linear or branched, C6-C10 arylene, C7-C20 alkylarylene or C7-C20 arylalkylene; M Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonized nitrogen base; m is 1 to 4; n is 1 to 4; x is 1 to 4, as component C 1 to 20% by weight salt of the phosphorous acid, as component D 1 to 50% by weight of filler or reinforcing material, as component E 0 to 2% by weight of a carboxyl ester amide, as component F 0 to 1% of a phosphonite or a mixture of a phosphonite and a phosphate, and as component G 0 to 1% by weight of an ester or salt of long-chain aliphatic carboxylic acids (fatty acids), which typically have chain lengths of C14 to C 40, wherein the sum of the components is always 100% by weight.

主权项

1. A flame-retardant polyamide composition comprising as component A from 1 to 96% by weight of one or more thermoplastic polyamides, as component B from 2 to 25% by weight of a dialkylphosphinic salt of the formula (I) and/or of a diphosphinic salt of the formula (II) and/or polymers of these,wherein
R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched or H; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, C7-C20-alkylarylene, or C7-C20-arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, a protonated nitrogen base or a combination thereof; m is from 1 to 4; n is from 1 to 4; x is from 1 to 4, as component C from 1 to 20% by weight of a salt of phosphorous acid, as component D from 1 to 50% by weight of filler or reinforcing material, as component E from 0 to 2% by weight of a carboxylic ester amide, as component F from 0 to 1% by weight of a phosphonite or of a mixture of a phosphonite and a phosphite, and as component G from 0 to 1% by weight of an ester or salt of long-chain aliphatic carboxylic acids (fatty acids) which typically have chain lengths of from C14 to C40, where the entirety of the components is always 100% by weight.