| 摘要 |
PURPOSE:To obtain the titled composition having excellent heat-resistance and suitable for forming an outer semiconductor layer of a cable, by adding a specific amount of electrically conductive carbon black to a base polymer consisting of a tetrafluoroethylene-propylene copolymer and a polyolefin resin. CONSTITUTION:(A) 100pts.(wt.) of a base polymer consisting of (a) 10-80pts. of a tetrafluoroethylene-propylene copolymer and (b) 90-20pts. of a polyolefin resin having a melting point of <=180 deg.C or its copolymer (e.g. polyethylene, ethylene-vinyl acetate copolymer, etc.) is compounded with (B) 10-100pts. of electrically conductive carbon black (e.g. acetylene black). The outer semiconductive layer produced from said composition has moderate releasability from the insulation layer of a cable, and the terminal treating work in the connection of cables can be facilitated. |
