| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a facing member composed of an olefin type resin which exhibits as effect as a fire retardant or noncombustible under a heat buildup test conforming to ISO 5660. <P>SOLUTION: In the facing member manufactured by piling up facing sheets whose main raw materials are polyolefin resins on a surface of a polyolefin resin substrate, metal layers are inserted between the polyolefin resin substrate and the facing sheets, and the metal layers have holes whose diameters range from 0.5 mm to 2 mm with area density from 10<SP POS="POST">3</SP>/m<SP POS="POST">2</SP>to 10<SP POS="POST">5</SP>/m<SP POS="POST">2</SP>while thicknesses of the facing sheets range from 30 μm to 100 μm. <P>COPYRIGHT: (C)2013,JPO&INPIT |
