B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
217/13, 154/140
B32B 27/08 (2006.01) B65D 65/40 (2006.01)
Patent
CA 1335424
This invention provides a gas-barrier multilayered packaging material which comprises an outer layer of a composition comprising 55-97 wt% of an EVOH and 45-3 wt% of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comprising a hydrophobic thermoplastic resin having a low moisture permeability. The invention further provides a gas-barrier multilayered packaging material which comprises an outer lay- er comprising a resin layer having a moisture permeability (measured at 40°C, 90% RH) of at least 40 g/m2.day, an inter- mediate layer of a composition comprising 55 to 97% by weight of an EVOH and 45 to 3% by weight of a resin selected from the group consisting of polyamide, polyolefin, polyester and polycarbonate and an inner layer comprising a hydrophobic thermoplastic resin layer having a moisture permeability lower than that of the outer layer. Both are useful as packaging materials to be used for boil sterilization or retort sterilization.
586890
Fukutome Susumu
Moritani Tohei
Motoishi Yasuo
Oda Hidemasa
Kirby Eades Gale Baker
Kuraray Co. Ltd.
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