Impermeable membrane resistant to chemical agents and impermeabl

Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...

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428215, 428421, B65D 100, B32B 2708

Patent

active

050063774

ABSTRACT:
An impermeable membrane contains at least one flexible support layer made of a polymer containing chlorine, at least one adhesive layer consisting of a copolyamide whose degree of crystallization is less than 20% and a film of a polymer containing fluorine.

REFERENCES:
patent: 3843479 (1974-10-01), Matsunami
patent: 3971865 (1976-07-01), Murakami et al.
patent: 4229567 (1980-10-01), Sharkey
patent: 4749625 (1988-06-01), Obayashi et al.

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