RESIN MATERIAL FOR ELECTRIC WIRE COVERING, ELECTRIC WIRE USING RESIN MATERIAL FOR ELECTRIC WIRE COVERING, AND FLAME RETARDANT CABLE

摘要

PPROBLEM TO BE SOLVED: To provide an electric wire covering resin material having all the required physical properties that are above a fixed level using a cyclic olefinic resin, and an electric wire using the electric wire covering resin material, and a flame retardant cable. PSOLUTION: The wire covering resin material containing (A) the olefinic resin, (B) an elastomer resin, (C) the cyclic olefinic resin in which the glass transition point is from 120C to 170C, and (D) a flame retardant agent is used. The content of (D) component is from 60 pts. by mass to 150 pts. by mass when a sum of (A) component, (B) component, and (C) component is 100 pts. by mass, the tensile elongation (conforming to JIS C3005) is 250% and more, and heat deformation (conforming to JIS C3005) is 40% or less. Preferably, the mass ratio of (A) component and a sum of (B) component and (C) component, [(A)/((B)+(C))] is from 80/20 to 60/40. PCOPYRIGHT: (C)2009,JPO&INPIT