| 摘要 |
<p>The present invention relates to multilayer laminates having controlled directional tearing in both the machine direction (MD) and the transverse direction (TD). It is desirable to have controlled tearing for use in connection with pouches or other packages having a reclose device. The laminate is made up of a biaxially oriented inner layer containing linear low density polyethylene (LLDPE) and having a tensile elongation to break of less than 200 % in the MD and less than 150 % in the TD, an outer layer having a heat distortion temperature of at least 10 °C higher than the inner layer and a tensile elongation to break of less than 200 % in the MD and less than 150 % in the TD, and an adhesive layer containing an adhesive polymer sandwiched between the inner and outer layers and adhering the two layers to each other.</p> |
