| 摘要 |
PROBLEM TO BE SOLVED: To obtain a resin composition excellent in moldability and desirable for a thin-wall molding having well-balanced and excellent flame retardancy, impact resistance, rigidity, heat resistance, and moldability by mixing a modified rubber-reinforced styrene resin with an organic phosphorus compound, a phenolic resin, and a colorant in a specified ratio. SOLUTION: This composition comprises 100 pts.wt. (A) modified rubber- reinforced styrene resin containing 1-20 wt.%α-methylstyrene residues and/or maleimido residues represented by formula I, 1-20 pts.wt. (B) organic phosphorus compound represented by formula II, 0.1-10 pts.wt. (C) phenolic resin, and 0.1-5 pts.wt. (D) colorant in a C/D ratio of 90/10 to 10/90 by weight. In formula I, R is hydrogen, a 1-5C alkyl, or the like. In formula II, X is formula III, IV, or V; R1 to R8 are each H or a 1-5C alkyl; Ar1, Ar2, Ar3, and Ar4 are each a (substituted)phenyl; Y is a direct bond, S, or the like; n is an integer of 0 or greater; and k and m are each an integer of 0-2, provided that k+m is an integer of 0-2. |
