EASILY SURFACE-SHAPABLE SHEET, LAMINATE OF EASILY SURFACE-SHAPABLE SHEET, SURFACE SHAPING METHOD USING THE SAME AND MOLDED ARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a surface-shapable sheet having a good property and a releasing property evne if a pattern having a high aspect ratio is shaped in a large surface area.;SOLUTION: The easily surface-shapable sheet has a crystallization enthalpy ▵Hcc of 0-20 J/g by a temperature increasing process (temperature increasing speed: 2°C/min) obtained by differential scanning calorimetry (DSC), a dynamic storage modulus E1' of 0.1×10⁹ to 2.5×10⁹ Pa obtained by dynamic viscoelasticity measurement (DMA) at 25°C and a dynamic storage modulus E2' of 1×10⁴ to 2×10⁷ Pa at a glass transition point (Tg) of +30°C. This surface shaping method comprises steps of heating the easily surface-shapable sheet (heating temperature:T1), pressing the sheet (pressing temperature:T1) using a die, relieving pressure (pressure relieving temperature:T2) by cooling and then removing the sheet from the die (die removal temperature:T3), whereby a molded article having a form of the die transferred on it is obtained. In this method, T1, T2 and T3 are set to satisfy a predetermined relationship.;COPYRIGHT: (C)2006,JPO&NCIPI