公开(公告)号：US08349957B2

公开(公告)日：2013-01-08

申请号：US13127723

申请日：2009-11-18

申请人： Shota Abe ,  Atsushi Morita ,  Kazuoto Sugiyama ,  Mineo Kubo

发明人： Shota Abe ,  Atsushi Morita ,  Kazuoto Sugiyama ,  Mineo Kubo

IPC分类号： C08F8/00 ,  C08L23/00

CPC分类号： H01M2/1653 ,  C08L23/04 ,  C08L23/20 ,  C08L2205/02 ,  C08L2207/068 ,  H01M10/052 ,  C08L2666/06

摘要： The present invention provides a polyolefin resin composition which is excellent in mechanical properties and dimensional stability and is particularly excellent in heat resistance, a film which is excellent in mechanical properties, dimensional stability and heat resistance because it is obtained from the polyolefin resin composition and which is particularly excellent in meltdown properties, a macroporous membrane which is excellent in permeability and shutdown properties in addition to the above properties, and uses thereof. The polyolefin resin composition of the present invention (C) comprises 85 to 50% by mass of ultrahigh-molecular weight polyethylene (A) having a specific intrinsic viscosity and 15 to 50% by mass of a polymer (B) containing a repeating unit derived from 4-methyl-1-pentene, in 100% by mass of the polyolefin resin composition (C).

摘要翻译： 本发明提供一种聚烯烃树脂组合物，其机械性能和尺寸稳定性优异，耐热性特别优异，由于由聚烯烃树脂组合物获得的机械性能，尺寸稳定性和耐热性优异的膜， 熔融特性特别优异，除了上述性能以外，渗透性和关闭性优异的大孔膜及其用途。 本发明（C）的聚烯烃树脂组合物含有85〜50质量％的特定粘度的超高分子量聚乙烯（A）和15〜50质量％的含有重复单元的聚合物（B） 来自4-甲基-1-戊烯的100质量％的聚烯烃树脂组合物（C）。