| 摘要 |
PROBLEM TO BE SOLVED: To provide an aromatic fiber paper having excellent heat resistance, thermal dimensional stability, delamination strength, electric insulation in high humidity and the like, and capable of solving various problems possessed by a conventional technique, especially the improvement of deformation (torsion, warp, waving or the like) and delamination strength in a production process of a laminate for an electric circuit board, and the problems of insufficiency of reliability caused by adhesiveness with a resin varnish and thermal change of the dimension. SOLUTION: The proportion of aromatic polyamide staple based on the whole weight is 70-96 wt.%, and the proportion of an organic binder is 4-30 wt.% in the aromatic polyamide fiber paper consisting essentially of the aromatic polyamide staple and the organic binder. The aromatic polyamide staple includes 3-30 wt.% aromatic polyamide staple undrawn or drawn at drawing ratio of≤5.0, and having a fiber length longer than that of other aromatic polyamide staple based on the whole weight of the aromatic polyamide staple. COPYRIGHT: (C)2004,JPO
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