ETHYLENE-BASED RESIN AND MOLDED OBJECT OBTAINED THEREFROM

Ethylene-based resin, which exhibits a satisfactorily high melt tension and can provide a molded object excellent in mechanical strength, the ethylene-based resin characterized in simultaneously satisfying the requirements [1] to [5] described below: [1] melt flow rate (MFR) under a loading of 2.16...

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Bibliographische Detailangaben
Hauptverfasser: TOMATA, CHIAKI, MITANI, MAKOTO, BANDO, HIDEKI, SONOBE, YOSHIHO, TANIFUJI, DAISUKE, SUZUKI, MASAO, SATOH, YASUO
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:Ethylene-based resin, which exhibits a satisfactorily high melt tension and can provide a molded object excellent in mechanical strength, the ethylene-based resin characterized in simultaneously satisfying the requirements [1] to [5] described below: [1] melt flow rate (MFR) under a loading of 2.16 kg at 190°C is in the range of 0.1 to 100 g/10 minutes; [2] density (d) is in the range of 875 to 970 kg/m3; [3] ratio [MT/.eta.* (g/P) ] of melt tension [MT (g) ] at 190°C to shearing viscosity [.eta.* (P) ] at 200°C at an angular velocity of 1.0 rad/sec. is in the range of 1.50x10 -4 to 9.00x10 -4; [4] sum [(A+B)(/1000C)] of the number of methyl branches [A(/1000C)] and the number of ethyl branches [B(/1000C)] per 1000 carbon atoms measured by 13C-NMR is 1.8 or less; and [5] zero shear viscosity [.eta.0(P)] at 200°C and weight-average molecular weight(Mw)measured by GPC-viscosity detector method (GPC-VISCO) satisfy the following relational expression (Eq-1): 0.01 x 10 -13 x Mw3.4