| 摘要 |
PROBLEM TO BE SOLVED: To provide a stretchable material for a vacuum bag, the material which can be easily and surely processed into the vacuum bag by high frequency welding, can be closely adhered to glass even if the glass is laminated glass three-dimensionally structured into a deeply bent shape, then, does not cause nonuniform adhesion or the breakage of the glass, and to provide the vacuum bag obtained by subjecting the stretchable material to high frequency welding. SOLUTION: The stretchable material for the vacuum bag used for manufacturing the laminated glass is obtained by laminating a thermoplastic polyester-based elastomer film and a thermoplastic polyester-based elastomer nonwoven fabric. The stretchable material is characterized in that 10% modulus is≤50 N/cm and the elongation at break is≥50%. The vacuum bag is obtained by subjecting the stretchable material to high frequency welding. COPYRIGHT: (C)2007,JPO&INPIT
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