| 摘要 |
<p>Laminate comprises high density (≥ 0.8 g/cm3) paper and layer of polyolefin polymer. The laminate is produced by extrusion coating the paper with the polymer and then (preferably immediately) applying pressure. The polymer is preferably an ethylene polymer, acrylic polymer or blend of these. The preferred paper is 35-80nm thick and has grammage = 30-80 g/m2. The preferred laminate comprises outer layers of a core layer of polymer, intermediate layers of paper and outer layers of polymer. The laminate may be used in food or drink packaging.</p> |
