| 摘要 |
PURPOSE:To provide a film remarkably improved in stretchability and stretch- wrapping properties, such as tackiness or elastic recovery, and improved in optical properties, such as transparency, and mechanical properties, such as impact resistance. CONSTITUTION:Two kinds of linear low-density polyethylene having properties different from each other, i.e. one having a relatively low density and a relatively narrow mol.wt. distribution and the other having a relatively high density and a relatively wide mol.wt. distribution, are blended in a wt. ratio of 20/80-70/30 to give a compsn. having thermal properties measured by DSC in specified ranges. |
