ETHYLENE POLYMER AND PRODUCTS OF MOLDING THEREOF

摘要

An ethylene/a-olefin copolymer satisfying the following requirements [1] to [5] is excellent in transparency and moldability and can give films or sheets excellent in mechanical strength: [1] the density (d) falls within the range of 890 to 980kg/m<SUP>3</SUP>, [2] the limiting viscosity ([?]) as determined at 135°C in decalin falls within the range of 0.5 to 10dl/g, [3] the ratio (Mw/Mn) of weight-average molecular weight (Mw) to number -average molecular weight (Mn) as determined by GPC falls within the range of 2.0 to 50, [4] in the elution temperature-eluted polymer quantity curve as given by cross fractionation chromatography (CFC), the difference between the temperature at which the integrated quantity of polymer eluted reaches 1% by mass and the temperature at which the integrated quantity of polymer eluted reaches 40% by mass is 12°C or below when the total quantity of polymer eluted is taken as 100% by mass, and [5] the content of matter soluble in decane is 0.5% by mass or below.