| 摘要 |
PROBLEM TO BE SOLVED: To prepare a joined carbon fiber sheet having a thin thickness and long length, and having a high heat resistance and capable of being continuously heat-treated at a high temperature. SOLUTION: This joined carbon fiber sheet is obtained by overlapping the end parts 2a and 4a of the carbon fiber sheets 2, 4, each other and joining the end sides each other by a spun yarn or filament bundle consisting of polyacrylonitrile-based oxidized fibers having 100-650dtex total denier,≥50g total strength and 10-30% elongation. COPYRIGHT: (C)2004,JPO
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