FILM HAVING GOOD BARRIER PROPERTIES TOGETHER WITH GOOD PHYSICAL CHARACTERISTICS
    3.
    发明申请
    FILM HAVING GOOD BARRIER PROPERTIES TOGETHER WITH GOOD PHYSICAL CHARACTERISTICS 有权
    具有良好的物理特性的良好屏障特性的膜

    公开(公告)号:US20140287215A1

    公开(公告)日:2014-09-25

    申请号:US13849891

    申请日:2013-03-25

    Abstract: The present invention relates to a monolayer film comprising a mixture of a first linear polyethylene having a density in the range of from 0.926 to 0.970 g/cm3; a second LLDPE having a density in the range of from 0.868 to 0.920 g/cm3; and a nucleating agent to get to a better balance of low WVTR and dart while still allowing film production from it on standard monolayer equipment without need for co-extrusion capability. The LLDPE with the higher density is further characterized by having at least 57 percent (by weight of that component) of molecules having a weight average molecular weight in the range of 31,000 g/mole to 1,000,000 g/mole. These components are blended in various ratios ranging from 50 to 90% of the higher density LLDPE, 10 to 50% of the lower density LLDPE and at least 50 ppm of the nucleating agent.

    Abstract translation: 本发明涉及包含密度在0.926-0.970g / cm3范围内的第一线性聚乙烯的混合物的单层膜; 密度在0.868至0.920g / cm3范围内的第二LLDPE; 和成核剂以获得更好的平衡低WVTR和飞镖,同时仍然允许在标准单层设备上从其生产膜,而不需要共挤出能力。 具有较高密度的LLDPE的特征还在于具有至少57重量%的该重均分子量为31,000g / mol至1,000,000g / mol的分子。 这些组分以高密度LLDPE的50至90%,较低密度LLDPE的10至50%和至少50ppm的成核剂的不同比例共混。

Patent Agency Ranking