| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonwoven fabric having sufficient strength even when heated. SOLUTION: The heat resistant nonwoven fabric is composed of a first PEN fiber having a breaking elongation of 5-45% and a second PEN fiber having a breaking elongation of 50-200% and flat cross-section, and has a weight ratio of the second PEN fiber based of 25-60 wt.% based on the nonwoven fabric weight. COPYRIGHT: (C)2009,JPO&INPIT
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