| 摘要 |
PURPOSE: A composition that intercepts and absorbs various harmful electromagnetic waves generated from electric and electronic instruments is provided. A sheet such as a floor covering and wall paper using the above composition is also provided. CONSTITUTION: A composition according to the present invention comprises 15 to 20 wt% of electro-conductive carbon black, 2 to 5 wt% of nickel particle, 1.5 to 3 wt% of zinc particle, 5 to 10 wt% of ferric oxide, 1 to 2 wt% of ceramics and balance amount of adhesive. A synthetic resin sheet according to the present invention is prepared by coating the same composition as above on a surface of sheeting at a predetermined thickness. |
