| 摘要 |
<p>The water shield sheet according to the present invention comprises an ethylene/ alpha -olefin copolymer (A) which is a copolymer of ethylene and an alpha -olefin of 3 to 20 carbon atoms and which has an MFR in the range of 0.05 to 10 g/10 min, a density (d) in the range of 880 to 935 kg/cm<3>, and a relation between a temperature (Tm ( DEG C )) at the maximum peak position in an endothermic curve, as measured by DSC, and a density (d (kg/cm<3>)), of Tm < 0.4 x d - 244, and a quantity fraction (W) of n-decane-soluble component at room temperature of not higher than 3.0 % by weight. The water shield sheet has excellent mechanical strength such as tensile strength and strength and elongation at tear strength and elongation at penetration, as well as excellent flexibility and fusion properties.</p> |
