Patent ID: 6852921

Claim:
A wire-protective tube which comprises a resin composition comprising: polypropylene; and (a) from 10 to 500 parts by weight of a propylene block copolymer comprising a high-temperature component eluted at 100° C. or higher and a low-temperature component eluted at lower than 100° C. according to the temperature-rising elution fractionation method are from 1 to 40% by weight and from 99 to 60% by weight, respectively, wherein the high-temperature component is a polymer comprising from 100 to 90 mol % of a propylene monomer unit and from 0 to 10 mol % of an ethylene monomer unit, and wherein the low-temperature component is a polymer comprising from 90 to 50 mol % of a propylene monomer unit and from 10 to 50 mol % of an ethylene monomer unit; (b) from 1 to 50 parts by weight of a bromine-based flame retardant; and (c) from 1 to 30 parts by weight of a flame retardant aid, each based on 100 parts by weight of the polypropylene.