| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve flame retardant performance even if an insulating layer is thick when realizing halogen free. <P>SOLUTION: In a halogen free flame retardant cable, an inner layer 11 and an outer layer 12 are formed on a conductor 10. The inner layer 11 comprises an etyleneethylacrylate copolymer having 9 to 35 wt.% EA amount as a base polymer, contains 50 to 150 pts.wt. flame retardant, such as magnesium hydroxide, to a 100 pts.wt. polymer. The outer layer 12 contains a 150 to 300 pts.wt. flame retardant to a 100 pts.wt. base polymer in which ethyleneethylacrylate (EEA) having 15 to 35 wt.% EA amount or an ethylene acetic acid vinyl copolymer (EVA) having a 15 to 45 wt.% vinyl acetate content (VA amount) is used individually or is mixed with the other polyolefin-based resins. <P>COPYRIGHT: (C)2007,JPO&INPIT |
