B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) A61J 1/10 (2006.01) B32B 27/32 (2006.01) C08L 23/04 (2006.01) A61J 1/00 (2006.01)
Patent
CA 2304317
Disclosed is a multi-layer film which comprises at least a first layer and a second layer inside thereof, wherein the first layer ccxnprises a polyolefin resin composition, and the second layer comprises a polyethylene resin material including a copolymer of ethylene with an .alpha.-olefin having from 3 to 18 carbon atoms, the copolymer comprising a lower crystalline component and a higher crystalline component and satisfying the following physical properties (B1) to (B4): (B1) in a temperature rising elution fraction (TREF) elution curve of the copolymer, an elution peak temperature of the lower crystalline component is from 45 to 85°C; (B2) in the temperature rising elution fraction (TREF) elution curve of the copolymer, an H/M value is 9 or more, wherein H is a peak height of the lower crystalline component and M is a height of the minimum valley between the lower crystalline component peak and higher crystalline component peak; (B3) an area ratio of the elution peak temperature or less of the lower crystalline component is 35% or more based on the total area of the temperature rising elution fraction (TREE) elution curve of the copolymer; and (B4) a melt flow rate (MFR) of the copolymer is from 0.1 to 20 g/10 minutes. 82
Sasaki Yoshihiko
Takenaka Kazutoshi
Japan Polychem Corporation
Riches Mckenzie & Herbert Llp
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