B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
220/2, 220/6
B65D 30/08 (2006.01) B32B 27/32 (2006.01) B65D 65/40 (2006.01)
Patent
CA 1124216
ABSTRACT OF THE DISCLOSURE This invention relates to an improved packaging multilayer bag structure having superior transparency and hot tack property as well as superior heat seal strength, impact strength, heat resistance, strength and oil resistance. The bag structure has at least two laminated layers, the innermost layer being composed of a random copolymer of ethylene and an alpha-olefin having 5 to 10 carbon atoms, said copolymer having the fol- lowing characteristics: (1) it has an ethylene content of 99.5 to 94 mole %, (2) it has a melt index at 190°C of 0.1 to 20, preferably 0.5 to 10, (3) it has a density of 0.915 to 0.940 g/cm3, preferably 0.920 to 0.935 g/cm3, (4) it has a p-xylene-soluble content (A) at 25 C of 0.5 to 5% by weight, (5) it has a boiling n-heptane-insoluble content (B) of not less than 8% by weight to less than 20% by weight, and (6) the total of (A) and (B) is not more than 20% by weight.
330824
Mitsui Chemicals Incorporated
Smart & Biggar
LandOfFree
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