Phosphorus-containing thermally stabilized flame retardant agglomerates

Abstract

The invention relates to phosphorus-containing thermally stabilized flame retardant agglomerates, comprising as component A from 6 to 99.99% by weight of aggregates and/or primary particles composed of a phosphinic salt of the formula (I) and/or of a diphosphinic salt of the formula (II), and/or of their polymers, where R1 and R2 are identical or different and are C1-C6-alkyl, linear or branched, and/or aryl; R3 is C1-C10-alkylene, linear or branched, C6-C10-arylene, -alkylarylene, or -arylalkylene; M is Mg, Ca, Al, Sb, Sn, Ge, Zn, Ti, Fe, Zr, Ce, Bi, Sr, Mn, Li, Na, K, and/or a protonated nitrogen base; m is from 1 to 4; n is from 1 to 4; and x is from 1 to 4; as component B from 0 to 90% by weight of a synergist which comprises a nitrogen compound or which comprises a phosphorus compound, or which comprises a phosphorus-nitrogen compound; as component C from 0 to 20% by weight of compounds of the elements of the second main and transition group; and as component D from 0.01 to 20% by weight of auxiliary. The invention also relates to a process for their production, and to their use.

Dependencies are inferred from the claim text.