| 摘要 |
PURPOSE:To obtain the title molded article for food package, etc., consisting of a mixture of a specific copolymer of styrenes and aliphatic unsaturated carboxylic acids and block copolymer of styrenes and conjugated diene, and having good stiffness, hardness, impact resistance and deep drawing properties. CONSTITUTION:A resin composition consisting essentially of a mixture of (A) a copolymer composed of (i) 97-20wt.% monomer of styrene or a styrenic derivative, etc., and (ii) 3-80wt.% aliphatic unsaturated carboxylic acid (derivative) and having 90-105 deg.C Vicat softening point and (B) block copolymer composed of 95-20wt.% of as same monomer as the component (i) and (iii) 5-80wt.% conjugated diene, and satisfying a condition that weight mixed ratio of these components A and B is expressed by the equation 0.05<=A/(A+B)<=0.99 is melted and extruded using an extruder provided with T-die and drawn in at least one direction to provide the objective stretchable sheet film having high molding properties. |
