Ethylene random copolymers
AssigneeMitsui Petrochemical Industries, Ltd.
InventorsToshiyuki Tsutsui, Ken Yoshitsugu, Akinori Toyota
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AssigneeMitsui Petrochemical Industries, Ltd.
InventorsToshiyuki Tsutsui, Ken Yoshitsugu, Akinori Toyota
Estimating the term…
In accordance with the present invention, there are provided ethylene copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3.about.20 carbon atoms, said ethylene copolymers having [A] a density of 0.85.about.0.92 g/cm.sup.3, [B] an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 0.1.about.10 dl/g, [C] a ratio (Mw/Mn) of a weight average molecular weight (Mw) to a number average molecular weight (Mn) as measured by GPC of 1.2.about.4, and [D] a ratio (MFR.sub.10 /MFR.sub.2) of MFR.sub.10 under a load of 10 kg to MFR.sub.2 under a load of 2.16 kg at 190.degree. C. of 8.about.50, and being narrow in molecular weight distribution and excellent in flowability.
In ethylene random copolymers composed of structural units (a) derived from ethylene and structural units (b) derived from .alpha.-olefin of 3 to 20 carbon atoms, the improvement which resides in that the ethylene copolymers have
Dependencies are inferred from the claim text.