FLAME-RETARDANT ETHYLENIC RESIN COMPOSITION AND CABLE AND WIRE COATED THEREWITH

摘要

PROBLEM TO BE SOLVED: To provide a flame-retardant ethylenic resin composition preferably usable for coating of cable and wire which satisfies the thermal deformation test requirements by CSA standard, having high resistance against heat deformation while maintaining the processability, mechanical properties such as tensile properties (breaking stress, breaking strain), impact strength and flexibility, and flame retardancy of the flame-retardant ethylenic resin composition obtained by the prior art of technology, and, to provide a cable and wire coated with the above composition. SOLUTION: This flame-retardant ethylenic resin composition comprises 100 pts.wt. of a base copolymer consisting of (A) 50 to 95 wt.% of at least one copolymer selected from the group consisting of ethylene-vinyl ester copolymer and ethylene-,-unsaturated carboxylic acid ester copolymer and (B) 50 to 5 wt.% of at least one copolymer selected from ethylene--olefin copolymers, (C) 2 to 50 pts.wt. of an ethylenic resin modified by a functional group containing compound, and (D) 5 to 250 pts.wt. of non-halogenated flame- retardant, wherein the heat of fusion a temperature of 121 deg.C or below is 85% or smaller of the total heat of fusion measured by DSC.