| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet for thermoforming showing excellent in transparence, stiffness and thermoformability with a good balance of the above properties and a thermoformed item therefrom showing excellence in transparence and stiffness. SOLUTION: A sheet and a thermoformed item therefrom are formed by using a polypropyrene resin composition obtained by mixing 0.05 to 1 pts.wt. of a transparent core agent with 100 pts.wt. of a polypropyrene resin which shows a melt flow rate of 0.1 to 5 g/10 minutes and shows an elution curve with a horizontal axis representing an elution temperature ( deg.C) and a vertical axis representing accumulated weight of eluting components by means of an temperature increase elution separation method wherein the amount of the eluting component (component A) in a range of a temperatures less than 20 deg.C is 0 to 10 wt.%, the amount of the eluting component (component B) in the range of a temperature not less than 20 deg.C to a temperature less than 110 deg.C is 15 to 70 wt.% and the amount of the eluting component (component C) in a range of a temperature not less than 110 deg.C is 30 to 85 wt.%, the peak top temperature of the component C being not less than 120 deg.C.
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