| 摘要 |
PURPOSE:The titled composition for providing a molded article having totally balanced qualities of improved coloring properties, impact strength, gloss, and rigidity, obtained by dispersing a rubber-like substance containing fine particles of an aromatic monovinyl polymer into a resin phase of the polymer in a state of the substance having a specific particle diameter. CONSTITUTION:(A) A rubber-like substance is dissolved in (B) an aromatic monovinyl monomer (mixture with solvent), and the monomer is subjected to bulk (suspension) polymerization to give the desired polymer wherein the component A(11-22wt%) is dispersed into the resin phase of the polymer of the component B, the median diameter of the dispersed particles is 0.6-1.4mu, the number-average particle diameter of the dispersed particles of the component A contained in the particles of the component B is 0.03-0.14mu, the composition has the toluene insoluble content X shown by the formula I (R is content wt% of the component A), and 8-13 swelling index, and the reduced viscosity Y of the polymer of the component A in the resin phase is in a range shown by the formula II. |
