Container resistant to extremely low temperatures
AssigneeToppan Printing Co., Ltd.
InventorsTakeo Ohodaira, Takashi Mizutani
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Abstract
A container for freezing or preserving physiological saline solutions for medical use is disclosed which is resistant to extremely low temperatures and which comprises laminated sheets. Each laminated sheet comprises an inner layer of unstretched film of polyethylene having a viscometric average molecular weight of 1,000,000 or more and a light-scattering average molecular weight of 3,000,000 or more; and an outer layer of polyethylene terephthalate or the like.
Claims7
A container resistant to extremely low temperatures, comprising a laminated body comprising an inner layer and an outer layer adhesively bonded together, the inner layer comprising a non-stretched film of a polyethylene which is prepared by the low polymerization method and which has a viscometric average molecular wreight of not less than 1,000,000 and a light-scattering average molecular weight of not less than 3,000,000, and the outer layer comprising a member selected from the group consisting of biaxially stretched polyethylene terephthalate, stretched or non-stretched polyethylene naphthalate, polyparabanic acid resin, perfluoroalkoxy resin, polytetrafluoroethylene, ethylene-tetrafluoroethyene copolymer, chlorinated trifluoroethylene resin, and aromatic polyimide resin.
Dependencies are inferred from the claim text.