C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
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.
Mitsui Chemicals Inc.
Smart & Biggar
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