FLAME-RETARDANT COMPOSITION, COVERED WIRE AND WIRING HARNESS

摘要

Disclosed is a flame-retardant composition which can be prevented from coloring during compounding or molding.  A covered wire using the flame-retardant composition is also disclosed. The flame-retardant composition contains at least a matrix polymer such as an olefin resin, a phenolic antioxidant having a tert-butyl group at the 2-position and 6-position of a hydroxyl group, and a flame retardant composed of a pulverized natural mineral which is mainly composed of magnesium hydroxide.  The iron oxide concentration in the flame retardant is set at 1000 ppm or less.  A covered wire wherein the flame-retardant composition is used for a covering material is also disclosed.