| 摘要 |
PROBLEM TO BE SOLVED: To provide a base material for a ceiling of an automobile having a small coefficient of linear expansion, and excellent mechanical strength, heat resistance and the like, and also to provide a ceiling material of an automobile, using the same, and also having a small coefficient of linear expansion, and excellent sound insulation property, heat insulation property, mechanical strength, heat resistance and the like. SOLUTION: The base material for the ceiling of the automobile consists of a laminate sheet which is obtained by drawing a thermoplastic polyester resin sheet in an amorphous state at the drawing temperature between the glass transition temperature of the thermoplastic polyester resin -20°C and the temperature of the glass transition temperature of the thermoplastic polyester resin +20°C, and laminating two or more of the drawn thermoplastic polyester resin sheets subjected to the uniaxial drawing at the temperature higher than the drawing temperature. COPYRIGHT: (C)2009,JPO&INPIT |
