| 摘要 |
PURPOSE:To make it possible to manufacture heat-resistant film having superb mechanical/chemical properties(mainly hydroscopic properties) and high economics by blending para-oriented rigid aromatic polyamide A, pliable aromatic polyamide B and soluble resin at a specific ratio. CONSTITUTION:The subject film consists of a blended resin of para-oriented rigid aromatic polyamide A, pliable aromatic polyamide B and soluble resin. The total amount of aromatic polyamides A, B is within a range of 5wt.% to 90wt.% of the total blended resin in film. In addition, the content of para- oriented rigid polyamide A is within a range of 10wt.% to 90wt.% of the total amount of aromatic polyamides A, B. In addition, the thermal size change factor at 250 deg.C of the film at least under one-direction lead (0.5kg/cm<2>) is 50% or lower. |
