Preparation of polyethylene films

Details Preparation of polyethylene films Preparation of polyethylene films

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) B29C 47/00 (2006.01)

Patent

CA 2552243

An essentially transparent, high density polyethylene film is disclosed. The film has a haze of 20% or less, a gloss of 40% or greater, and density within the range of 0.935 to 0.948 g/cc. The film is made by a high-stalk blown extrusion process and then uniaxially oriented in the machine direction.

L'invention concerne un film de polyéthylène haute densité, sensiblement transparent, qui présente un trouble d'au maximum 20 % et un brillant d'au moins 40 %, et une densité comprise entre 0,935 et 0,948 g/cc. Le film est réalisé par un procédé d'extrusion-soufflage carotte haute, puis dirigé de manière uniaxiale dans le sens de la machine.

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