Styrene type resin, the extrusion foaming sheet and the container, and the tabular extrusion foaming body

摘要

PROBLEM TO BE SOLVED: To provide a styrenic resin composition which allows weight reduction of a foam container such as a foam tray while maintaining the strength thereof, an extruded foam sheet obtained by extrusion foaming using the composition, and a lightweight container obtained by vacuum forming of the extruded foam sheet, and to provide a styrenic resin composition which allows weight reduction of a flat extruded foam used for a heat insulating material or the like while maintaining the insulation efficiency thereof and the flat extruded foam using the composition.;SOLUTION: Disclosed is a styrenic resin composition comprising an aromatic vinyl monomer, wherein the melt mass flow rates (MFR) measured at 200°C and a load of 49 N is 1.0-6.0 g/10 minutes; and the ratio G'(0.1)/G'(100) is 0.003 or more, wherein G'(0.1) is the storage modulus measured at an angular velocity of 0.1 radian/second and G'(100) is the storage modulus measured at an angular velocity of 100 radian/second, at 240°C by means of a cone and plate-type melt viscoelasticity measuring apparatus.;COPYRIGHT: (C)2009,JPO&INPIT