Heterogeneous, compositionally phase separated, ethylene...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 210/16 (2006.01) C08J 5/18 (2006.01)

Patent

CA 2630688

The present invention pertains to a heterogeneous ethylene/.alpha.-olefin copolymer having a relatively high melt index range (I2 from 1.1 to 1.6 dg/min.), low density (0.915 to 0.919 g/cc) and narrow molecular weight distribution (I10/I2 from 7.0 to 7.7), and highly separated composition distribution as determined by SCBD; a process for making such a copolymer; blends thereof with additional polymers; and fabricated articles, especially films, made there from.

La présente invention a trait à un copolymère hétérogène d'éthylène/alpha-oléfine présentant une plage d'indice de fluidité élevé (I2 de 1,1 à 1,6 dg/min.), un faible densité (0,915 à 0,919 g/cc) et une distribution de poids moléculaire étroite (I10/I2 de 7,0 à 7,7), et une distribution de composition hautement séparée telle que déterminée par la distribution de ramifications courtes (SCBD). L'invention a également trait à un procédé pour la fabrication d'un tel copolymère; à des mélanges de celui-ci avec des polymères additionnels; et à des articles fabriqués, notamment des films, à partir dudit copolymère.

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