| 摘要 |
PROBLEM TO BE SOLVED: To obtain a flexible container of excellent thermal resistance and RF weldability by coating at least one surface of a base fabric with a thermoplastic resin film that contains ammonium polyphosphate. SOLUTION: This flexible container is obtained by mixing a thermoplastic resin that contains no halogen element, such as ethylene-vinyl acetate copolymer or olefin-based elastomer, whose thermal resistance (determined in accordance with Japanese Industrial Standard Z 1651) is higher than 80 deg.C, with ammonium polyphosphate shown by the formula ((n) is 50 or a larger integer), forming the mixture into a 80-300μm thick sheet by a T-die extrusion method, and laying and hot-pressing the sheet on at least one surface of a base fabric of plain- weave texture. |
