| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous extrusion-foamed molding which comprises a polyolefine resin having a high expansion ratio, a sufficient thickness, and a width. SOLUTION: The polyolefine resin extrusion-foamed molding having an open cell fraction of >=50% comprises a base resin which is composed of as a main component a mixed resin (component (A) + component (B) = 100 pts.wt.) of an ethylene ionomer resin (A) of >=5 pts.wt. and <50 pts.wt. and a polyethylene resin (B) of >50 pts.wt. and <=95 pts.wt. having a density of <=940 kg/m3. The storage elastic modulus G' (dyn/cm2) of the polyethylene resin satisfies a formula (1) at the range of angular frequencyω=10-1-101 (rad/sec) by the dynamic viscoelasticity measurement in which a vibration distortion is given at 190 deg.C logG'=αlogω+β(1) (Wherein, 0<α<=1, 5, 2<=β<=5).
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