The invention offers a flame-retardant resin sheet that not only can have a low dielectric constant but also has excellent flexibility, flame retardancy, and thin-film processibility and a flat cable incorporating the sheet. The flame-retardant resin sheet contains a resin constituent; containing polyphenylene ether at a content of 5 mass % or more and 75 mass % or less, a thermoplastic elastomer at a content of 5 mass % or more and 40 mass % or less, and polyolefin at a content of 20 mass % or more and 90 mass % or less; and a phosphorus-based flame retardant, a nitrogen-based flame retardant, or both at 5 to 100 mass parts per 100 mass parts of the resin constituent. A flexible flat cable incorporates the flame-retardant resin sheet as a covering material.
本发明提供了一种不仅具有低介电常数,而且具有优异的柔韧性、阻燃性和薄膜加工性的阻燃
树脂片材,以及一种包含该片材的扁平电缆。阻燃
树脂板含有
树脂成分;其中聚苯醚的含量为 5 质量%以上、75 质量%以下,热塑性弹性体的含量为 5 质量%以上、40 质量%以下,聚烯烃的含量为 20 质量%以上、90 质量%以下;以及
磷系阻燃剂、氮系阻燃剂或二者的含量为每 100 质量份
树脂成分中 5 至 100 质量份。柔性扁平电缆采用阻燃
树脂片作为包覆材料。