| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a stretched thermoplastic polyester-based resin sheet excellent in tensile strength, tensile elasticity modulus, and heat resistance. SOLUTION: The manufacturing method for the stretched thermoplastic polyester-based resin sheet is characteristic in that after the thermoplastic polyester-based resin sheet in an amorphous state is drawn and stretched by passing through between a pair of rolls having a temperature where the glass transition temperature of the thermoplastic polyester-based resin sheet is ranging from -20°C to +20°C, it is uniaxially stretched at a temperature higher than the roll temperature, and thermally solidified at the higher temperature than a rising temperature of crystallization peak of the thermoplastic polyester-based resin on a differential scanning calorimetry curve measured at a programming temperature of 10°C/min. COPYRIGHT: (C)2007,JPO&INPIT |
