Polyethylene resin inner container for bag in box, a package...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

400/6578, 190/46

C08L 23/08 (2006.01) B65D 77/06 (2006.01) C08F 210/16 (2006.01) C08L 23/04 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01)

Patent

CA 2188086

The polyethylene resin inner container for bag in box according to the invention is formed from a polyethylene resin comprising an ethylene copolymer [A] having the properties: (i) the copolymer [A] is a copolymer of ethylene and an .alpha.-olefin of 3 to 20 carbon atoms; (ii) the density is in the range of 0.880 to 0.960 g/cm3; (iii) the melt flow rate (MFR, ASTM D 1238-65T, 190 °C, load of 2.16 kg) is in the range of 0.01 to 20 g/10 min; and (iv) the temperature (Tm) at the maximum peak position of the endothermic curve measured by a differential scanning calorimeter (DSC) and the density (d) satisfy the relation Tm < 400 x d - 250. This inner container is formed from a polyethylene resin of high heat stability and moldability, and has excellent blocking resistance, anti-pinhole properties and flex resistance. Further, this inner container has good handling properties and can be folded so that one half of the container lies on the other half thereof.

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