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发明申请
WO2015090641A1 A NEW LOW MFR POLYMER COMPOSITION, POWER CABLE INSULATION AND POWER CABLE 审中-公开
新型低MFR聚合物组合物，电力电缆绝缘和电力电缆

A NEW LOW MFR POLYMER COMPOSITION, POWER CABLE INSULATION AND POWER CABLE
摘要：
The present invention relates to a polymer composition comprising a polyolefin, peroxide and a sulphur containing antioxidant, wherein said peroxide is present in an amount which corresponds to X mmol −O-O-/kg polymer composition and said sulphur containing antioxidant is present in an amount which corresponds to Y mmol −OH /kg polymer composition, wherein Y 1 ≤ Y ≤ Y 2 , X ≤ 45 and 0.9 * Y + m ≤ X ≤ n − k * Y, wherein Y 1 is 0.50 and Y 2 is 10, and m is 0.8, n is 70 and k is 4.7; and wherein said polymer composition has a melt flow rate (MFR) of less than 1.7, and said polymer composition comprises less than 0.05 % by weight (wt%) 2,4-Diphenyl-4-methyl-1-pentene; a crosslinked polymer composition, and use thereof, a power cable insulation, a power cable, useful in high voltage (HV DC) and extra high voltage (EHV DC) direct current applications, and a method for reducing electrical conductivity of a crosslinked polymer composition.
摘要（中）：

本发明涉及包含聚烯烃，过氧化物和含硫抗氧化剂的聚合物组合物，其中所述过氧化物以相应于X mmol -OO- / kg聚合物组合物的量存在，并且所述含硫抗氧化剂的存在量为 对应于Y mmol -OH / kg聚合物组合物，其中Y1≤Y≤Y2，X≤45和0.9 * Y +m≤X≤n-k * Y，其中Y1为0.50，Y2为10，m为0.8， n为70，k为4.7; 并且其中所述聚合物组合物具有小于1.7的熔体流动速率（MFR），并且所述聚合物组合物包含小于0.05重量％（重量％）的2,4-二苯基-4-甲基-1-戊烯; 交联聚合物组合物及其用途，用于高压（HV DC）和超高压（EHV DC）直流应用的电力电缆绝缘，电力电缆以及降低交联聚合物组合物的导电性的方法 。

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