B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/92.1
B32B 15/08 (2006.01)
Patent
CA 1179245
A B S T R A C T Processes for manufacturing a metal-plastic composite foil having a plastic core covered on both sides with an outer layer of thin metal strip, in particular aluminum thin strip are already known. However, the use of a so-called triplex composite of the kind just mentioned for relatively large volume containers of full weight up to about 30 kg has been very limited be- cause of the unsatisfactory deep drawing properties of such composites in deep drawing or deep drawing by elongation of the foil (stretching). By means of the invention a process for manufacturing a metal-plastic composite (1,10 and 20) of the so-called triplex composite kind and a metal-plastic composite foil made by this said process have been developed which allow in particular the manufacture of semi-rigid light-weight containers which have a weight of up to ca. 30 kg when full and this even by cold forming. Containers made from such composite foils are particularly resistant to break- age or leakage and can be closed or fitted together by known sealing methods. (Fig. 1)
384121
Bolliger Max
Breitler Hans P.
Festag Werner
Muller Hans U.
Marcoux & Sher Swabey Mitchell Houle
Swiss Aluminium Ltd.
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