| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crosslinking foaming resin composition suitable for producing a crosslinked foam excellent in the balance between expansion ratio, the tensile fracture strength, and tensile fracture elongation. <P>SOLUTION: The crosslinking foaming resin composition is prepared by irradiating an ionizing radiation to a resin composition comprising the following components (A), (B), and (C). The component (A) is an ethylene-α-olefin copolymer having 0.6-5 g/10 min of MFR, 900-935 kg/m<SP>3</SP>of density, a molecular-weight distribution Mw/Mn of ≥5, and activation energy of flow of ≥40 kJ/mol, the component (B) is a high-pressure low-density polyethylene having 8.5 wt.% or more of molecules with ≥700,000 of molecular weight measured by GPC relative to polystyrene standards (setting the weight of the component (B) as 100%), and the component (C) is a heat-decomposition type foaming agent having 120-240°C of decomposition temperature. <P>COPYRIGHT: (C)2010,JPO&INPIT |
