| abstract |
Disclosed is an additive composition that can impart excellent thermal resistance and flame retardancy to a synthetic resin. The additive composition contains a bromine-based flame retardant as a component (A), an antimony oxide as a component (B), a compound expressed by the formula (1) below as a component (C), and a phenolic antioxidant as a component (D).In the formula (1), R1, R2, R3, and R4 each independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbon atoms. It is preferable that R1, R2, R3, and R4 in the formula (1) each independently represent a hydrogen atom or a linear alkyl group having 1 to 4 carbon atoms. |