| 摘要 |
PURPOSE:To easily remove dusts and to improve heat resistance and chemical resistance by laminating a porous film substantially made of polyphenylene sulfide at least on the flat face of a felt base material. CONSTITUTION:A felt laminate is obtained by laminating a porous film substantially made of polyphenylene sulfide on at least one side face of a felt base material, and, for example, thermally press-bonding it. The thickness, pore diameter of the film are different depending upon object, and satisfactory when it is used particularly under conditions to be required for high heat resistance and chemical resistance. |
