The present invention discloses a transparent rubber-modified monovinylidene aromatic resin. The rubber-modified monovinylidene aromatic resin comprises: a dispersed rubber particle (A) and a continuous phase matrix copolymer (B). The surface of the molding has a maximum height difference (&Dgr;Hmax) of less than 3,200 Å, and an average height difference (&Dgr;Have) of less than 2,000 Å when measured with a surface profiler. The average ratios of major diameter to minor diameter of said rubber particles before and after annealing at 120° C. for 40 mins are A1 and A2 respectively, and the ratio of A1/A2 ranges form 1.08 to 2.35.
本发明公开了一种透明的橡胶改性单亚
乙烯基芳香族
树脂。橡胶改性单亚
乙烯基芳香族
树脂包括:分散橡胶颗粒(A)和连续相基质共聚物(B)。用表面轮廓仪测量,成型表面的最大高度差(&Dgr;Hmax)小于 3,200 Å,平均高度差(&Dgr;Have)小于 2,000 Å。在 120° C 退火 40 分钟前后,所述橡胶颗粒的大直径与小直径的平均比率分别为 A1 和 A2,A1/A2 的比率范围为 1.08 至 2.35。