C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 23/04 (2006.01) C08L 23/06 (2006.01) C08L 23/08 (2006.01)
Patent
CA 2465479
A polyethylene composition prepared by polymerizing ethylene and an optional olefin with >=3 carbon atoms in the presence of a macromonomer, is provided. The macromonomer is a vinyl-terminated ethylene polymer prepared by polymerizing ethylene and an optional olefin with >=3 carbon atoms, and the macromonomer has (A) Mn >= 5,000, and Mw/Mn = 2-5. The polyethylene composition comprises (C) branched polyethylene prepared by copolymerizing ethylene, the macromonomer and an optional olefin with >=3 carbon atoms, and the macromonomer. The polyethylene composition has (D) a density of 0.890-0.980 g/cm3, (E) Mw = 30,000-10,000,000, (F) Mw/Mn = 2-30, (G) a long chain branch frequency of 0.01-3 per 1, 000 C atoms, and (H) a shrinking factor (g' value) of 0.1-0.9 as measured by GPC/intrinsic- viscosity. The polyethylene composition can be finely divided particles having (P) a powder bulk density of 0.15-0.50 g/cm3.
Inatomi Kei
Wakabayashi Yasutake
Yamada Satoru
Yamaguchi Masayuki
Yano Akihiro
Smart & Biggar
Tosoh Corporation
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