Flameproof agent stabiliser combination for thermoplastic and duroplastic polymers

Abstract

The invention relates to a novel flameproof agent stabiliser combination for thermoplastic and duroplastic polymers, containing, as component A 25-97.7 wt % of a dialkylphosphinic acid salt of formula (I) and/or a diphosphinic acid salt of formula (II) and/or polymers thereof, wherein R1, R2 are the same or different and represent C1-C6-alkyl, linear or branched and/or aryl; R3 represents C1-C10-alkylene, linear or branched, C6-C10-arylene, C7-C20-alkylarylene or C7-C20-arylalkylene; M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; m represents 1-4; n represents 1-4; x represents 1-4, as component B 2-45 wt. % of a monoalkylphosphinic acid salt of general formula (Ill), wherein R4 represents C1-C6-alkyl, linear or branched; M represents Mg, Ca, Al, Sb, Sn, Ge, Ti, Zn, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K and/or a protonated nitrogen base; representing, as component C 0.3-30 wt. % of a synergist containing nitrogen or a phosphorous/nitrogen flameproof agent and as component D 0-10 wt. % of a zinc salt or a basic or amphoteric oxide, hydroxide, carbonate, silicate, borate, stannate, mixed oxide-hydroxides, oxide-hydroxide-carbonate, hydroxide-silicates or hydroxide-borates or mixtures of said substances, as components E 0-3 wt. % phosphonite or a phosphonite/phosphite mixture and as component F 0-3 wt.% of an ester or salt of long-chained carboxylic acids, the total of the components always amounting to 100 wt. %.

Dependencies are inferred from the claim text.