| 摘要 |
A polypropylene resin composition having the following conditions (a) and (b): (a) the resin composition can be drawn such that a diameter d of a strand obtained when the resin composition is extruded from a circular die having an inside diameter D is d</=0.25xD, and (b) the ratio of the maximum value of elongational viscosity to the maximum value of shear viscosity, measured at the same temperature and the same rate of strain is: elongetional viscosity/shear viscosity>/=5. The polypropylene resin composition is suitable for processing such as blow molding, vacuum forming, film extrusion, extrusion coating, spinning, foam processing, etc.
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