| 摘要 |
PURPOSE:The titled resin composition capable of producing a molded article having excellent strength, heat resistance, transparency, etc. with good moldability, made by incorporating mineral oil into a specified styrene copolymer resin. CONSTITUTION:0.1-8pts.wt. mineral oil [having a specific gravity (15 deg.C/4 deg.C) of about 0.82-0.9, a kinematic viscosity (37.8 deg.C) of about 10-100cSt, and a refractive index of about 1.43-1.5] is incorporated into 100pts.wt. styrene copolymer resin [having a weight-average molecular weight of about 100,000-500,000 and a molecular weight distribution (weight-average molecular weight/number-average molecular weight) of about 1.5-4.5] obtained by the copolymerization of 98- 40wt% styrene, 1-25wt% alpha-methylstyrene, and 1-35wt% methacrylic acid using a radical-polymerization initiator in an amount of about 3pts.wt. based on 100pts.wt. total monomers. |
