Fire-retardant thermoplastic polyurethane resin composition for telecommunication cable covering

Abstract

Disclosed is a halogen-free fire-retardant polyolefin resin composition for a telecommunication cable covering, which includes 50˜74 wt % of thermoplastic polyurethane, 1˜10 wt % of maleic anhydride grafted styrene-ethylene/butylene-styrene, 5˜38 wt % of melamine cyanurate and 2˜20 wt % of an organic phosphinate salt, and in which fire retardancy is maintained, whitening or bleeding is prevented and scratch hardness is high, despite the use of a small amount of fire retardant.

Dependencies are inferred from the claim text.