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发明公开
CN101946289A 电线包覆用树脂材料、使用该电线包覆用树脂材料的电线以及阻燃电缆 失效 - 权利终止

电线包覆用树脂材料、使用该电线包覆用树脂材料的电线以及阻燃电缆
摘要：
本发明提供使用了环状烯烃系树脂且所要求的全部物性为一定水准以上的电线包覆用树脂材料、使用了该电线包覆用树脂材料的电线、以及阻燃电缆。电线包覆用树脂材料使用以下物质，其含有(A)烯烃系树脂、(B)弹性体树脂、(C)玻璃化转变点为120℃～170℃的环状烯烃系树脂和(D)阻燃剂，相对于(A)成分、(B)成分和(C)成分的总量100质量份，(D)成分的含量为60质量份～150质量份，拉伸伸长率(依据JIS C3005)为250％以上，热变形(依据JIS C3005)为40％以下。优选的是，(A)成分与(B)成分和(C)成分的总量的质量比〔(A)/((B)+(C))〕为80/20～60/40。
摘要（英）：

Disclosed is a resin material for coating an electric wire, which comprises a cyclic olefin resin and of which all required properties are equal to or higher than predetermined levels. Also disclosed is an electric wire produced by using the resin material. Further disclosed is a flame-retardant cable. The resin material for coating an electric wire comprises (A) an olefin resin, (B) an elastomer resin, (C) a cyclic olefin resin having a glass transition temperature of 120 to 170 DEG C and (D) a flame retardant agent, wherein the content of the component (D) is 60 to 150 parts by mass relative to 100 parts by mass of the total amount of the components (A), (B) and (C). The resin material has a tensile elongation (in accordance with JIS C3005) of 250% or more and a deformation by heat (in accordance with JIS C3005) of 40% or less. Preferably, the ratio of the content of the component (A) to the total content of the components (B) and (C) (i.e., a [(A)/(B)+(C)] ratio) is 80/20 to 60/40 by mass.

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