Additive composition, flame-retardant synthetic resin composition containing same, and molded article thereof

Abstract

Provided are: an additive composition which can impart excellent heat resistance and flame retardancy to a synthetic resin; a flame-retardant synthetic resin composition containing the same; and a molded article thereof. The additive composition contains: as a component (A), at least one ammonium polyphosphate; and as a component (B), at least one selected from the group consisting of compounds represented by Formula (1) and compounds represented by Formula (2). In Formula (1), R1, R2 and R3 each independently represent a divalent hydrocarbon group having 1 to 3 carbon atoms, and, in Formula (2), R4, R5 and R6 each independently represent a divalent hydrocarbon group having 1 to 3 carbon atoms, and R7, R8 and R9 each independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbon atoms.

Dependencies are inferred from the claim text.