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AssigneesMitsui Chemicals, Inc., Prime Polymer Co., Ltd.
InventorsShinya MATSUBARA, Kazuki HATO, Naoya TAMURA, Youichi TANAKA, Chihiro KENGOYAMA, Yudai UEMATSU, Shota YOSHINO
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To provide an ethylene-α-olefin copolymer capable of producing a shaped article (in particular, a film) having excellent mechanical strength and well-balanced transparency and blocking resistance with excellent formability. A copolymer of ethylene and one or more α-olefins having 4 to 10 carbon atoms, the copolymer satisfying the following requirements (1) to (6): (1) Density of 890 to 925 kg/m3; (2) MFR (190° C., 2.16 kg load) of 0.1 g/10 minutes or more and less than 3.0 g/10 minutes; (3) MT (melt tension)/η* (shear viscosity) of 1.20×10−4 to 2.90×10−4 g/P; (4) 0.01×10−13×Mw3.4≤η0 (zero shear viscosity)≤3.5×10−13×Mw3.4; (5) −7.0≤Mz/Mw −Mw/Mn≤2.0; (6) Multiple peaks in melting curve of DSC.
An ethylene-α-olefin copolymer which is a copolymer of ethylene and one or more α-olefins having 4 to 10 carbon atoms, and which satisfies the following requirements (1) to (6):
Dependencies are inferred from the claim text.