| 摘要 |
<p>The instant invention provides a polymer composition suitable for clear graphic cling film applications, method of producing the same, articles made therefrom, and methods for making such articles. The polymer composition suitable for clear graphic cling film applications, according to the present invention, comprises: (a) a polyolefin composition selected from the group consisting of a propylene-based composition, and an ethylene-based composition, wherein the propylene-based composition has an melt flow rate in the range of from 2 to 8 g/10 minutes, a dynamic mechanical spectroscopy (DMS) value in the range of from 3700 to 10100 Pascal-seconds at 0.1 radian per second, and from 650 to 1200 Pascal-seconds at 100 radian per second measured at 190° C, and having a crystallinity in the range of from at least 4 percent by weight to 11 percent by weight, and a heat of fusion of in the range of from 6 to 19 Joules/gram, and a DSC melting point of less than 110° C (measured via DSC, second heat), and wherein the ethylene-based composition has a melt index (I2) in the range of from 0.5 to 5 g/10 minutes, and a density in the range of from 0.865 to 0.880 g/cm3, a DMS value in the range of from 1800 to 17000 Pascal-seconds at 0.1 radian per second, and from 750 to 2200 Pascal-seconds at 100 radian per second measured at 190° C, and having a crystallinity in the range of from at least 14 percent by weight to 20 percent by weight, and a heat of fusion in the range of from 40 to 60 Joules/gram, and a DSC melting point of less than 70° C (measured via DSC, second heat), and (b) one or more alkyl phosphate-based release agent; wherein when said polyolefin composition is formed into a clear graphic cling film having a 7 ( 2) mils, said clear graphic cling film has a haze in the range of from less than 4 percent, for example from 0.3 to 4 percent, measured according to ASTM-D 1003.</p> |
