B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01)
Patent
CA 2070089
METAL-FREE BARRIER-LAYER FILMS A b s t r a c t The invention relates to composite films having a particularly good barrier effect against gases and water vapor without a metal layer, for example of aluminium, having to be present. WW 5322
Bochow Richarda
Lund Klaus
Preiss Holger
Fetherstonhaugh & Co.
Wolff Walsrode Ag
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