Longitudinally stretched, vacuum vapour coated packaging films

Details Longitudinally stretched, vacuum vapour coated packaging films Longitudinally stretched, vacuum vapour coated packaging films

B - Operations, Transporting

32

B

B32B 27/14 (2006.01) B29D 7/01 (2006.01) B32B 27/06 (2006.01) B32B 27/34 (2006.01) C08J 5/18 (2006.01) C23C 14/08 (2006.01) C23C 14/20 (2006.01)

Patent

CA 2333795

A longitudinally stretched multilayered film having good barrier properties is de- scribed. The film is prepared by a process comprising (a) preparing by coextrusion a laminate structured of, in sequence, a first polyamide layer, an EVOH layer, and a second polyamide layer, and (b) longitudinally stretching the laminate and (c) ap- plying by vacuum vapor deposition to one of the surfaces of the stretched laminate an inorganic layer.

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