| abstract |
An object of the present invention is to provide 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).n n In the formula (1), R 1 , R 2 , R 3 , and R 4 each independently represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 4 carbon atoms. It is preferable that R 1 , R 2 , R 3 , and R 4 in the formula (1) each independently represent a hydrogen atom or a linear alkyl group having 1 to 4 carbon atoms. |