知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN104004123A 具有改进的加工性和熔体破裂特征的聚合物树脂 有权

具有改进的加工性和熔体破裂特征的聚合物树脂
摘要：
本申请涉及具有改进的加工性和熔体破裂特征的聚合物树脂。一种包含(i)较高分子量组分和(ii)较低分子量组分的茂金属催化的聚合物，其中该聚合物具有从约10至约26的多分散指数；从约5×105Pa.s至约2×1014Pa.s的零剪切粘度和在从约1.5s-1至约17s-1的剪切速率下从约20kPa至约85kPa的光滑到磨砂转变临界应力。一种包含(i)较高分子量组分和(ii)较低分子量组分的双茂金属催化的聚乙烯，其中该聚合物具有从约10至约26的多分散指数；从约5×105Pa.s至约2×1014Pa.s的零剪切粘度和在从约1.5s-1至约17s-1的剪切速率下从约20kPa至约85kPa的光滑到磨砂转变应力。
摘要（英）：

The application refers to polymer resins with improved processability and melt fracture characteristics. A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5105 Pas to about 21014 Pas and a smooth-to-matte transition critical stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s-1 to about 17 s-1. A dual metallocene catalyzed polyethylene comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5105 Pas to about 21014 Pas and a smooth-to-matte transition stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s-1 to about 17 s-1.

公开/授权文献
0/0