FLAME RETARDANT-STABILIZER COMBINATION FOR THERMOPLASTIC POLYMERS

The invention provides a flame retardant-stabilizer combination for thermoplastic polymers, comprising as component A 20% to 99.7% by weight of phosphinic salt of the formula (I), (I), in which R1 and R2 are each ethyl, M is Al and m is 3; as component B 0.2% to 16% by weight of aluminium salts of e...

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Bibliographische Detailangaben
Hauptverfasser: HOEROLD, Sebastian, BAUER, Harald
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:The invention provides a flame retardant-stabilizer combination for thermoplastic polymers, comprising as component A 20% to 99.7% by weight of phosphinic salt of the formula (I), (I), in which R1 and R2 are each ethyl, M is Al and m is 3; as component B 0.2% to 16% by weight of aluminium salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid; as component C 0.1 % to 80% by weight of a salt of phosphorous acid having the general formula (II) [HP(=O)O2]2- M m+ (II) in which M is Zn and m is 2; as component D 0% to 80% by weight of a salt of phosphorous acid having the general formula (III) [HP(=O)O2]2- 3 Mm+ 2 (III) in which M is Al and m is 3; as component E 0% to 30% by weight of a nitrogen-containing synergist and/or of a phosphorus-containing and/or nitrogen-containing flame retardant; as component F 0% to 10% by weight of an inorganic synergist selected from zinc borate, zinc stannate, boehmite and/or hydrotalcite; as component G 0% to 3% by weight of an organic phosphonite and/or a mixture of an organic phosphonite and an organic phosphite and as component H 0% to 3% by weight of an ester and/or salt of long-chain aliphatic carboxylic acids (fatty acids) typically having chain lengths of C14 to C40, where the sum total of the components is always 100% by weight. L'invention concerne une combinaison ignifuge-stabilisant pour polymères thermoplastiques, comprenant en tant que composant A 20 % à 99,7 % en poids de sel phosphinique de formule (I), (I), dans laquelle R1 et R2 sont chacun un éthyle, M est Al et m est égal à 3 ; en tant que composant B 0,2 % à 16 % en poids de sels d'aluminium d'acide éthylbutylphosphinique, d'acide dibutyphosphinique, d'acide éthylhexylphosphinique, d'acide butylhexylphosphinique et/ou d'acide dihexylphosphinique ; en tant que composant C 0,1 % à 80 % en poids d'un sel d'acide phosphoreux de formule générale (II) [HP(=O)O2]2- M m+ (II) dans laquelle m est Zn et m est égal à 2 ; en tant que composant D 0 % à 80 % en poids d'un sel d'acide phosphoreux de formule générale (III) [HP(=O)O2]2- 3 Mm+ 2 (III) dans laquelle M représente Al et m est égal à 3 ; en tant que composant E 0 % à 30 % en poids d'un synergiste contenant de l'azote et/ou d'un agent ignifuge contenant du phosphore et/ou contenant de l'azote ; en tant que composant F 0 % à 10 % en poids d'un synergiste inorganique sélectionné parmi le borate de zinc, le stannate