| abstract |
This invention relates to flame retardant compositions comprising a heptaphosphorus derivative compound and novel heptaphosphorus derivative compounds.nThe heptaphosphorus derivative compounds are especially useful in the manufacture of thermoplastic polymers (especially polyolefin homopolymers and copolymers), polycondensates (eg polyamines or polyesters) and duroplastic polymers (eg based on polycyclic rings) Flame retardant composition of the oxide. |