B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/22
B31B 49/00 (2006.01) B31B 39/00 (2006.01) B29C 65/40 (2006.01)
Patent
CA 1249158
ABSTRACT OF THE DISCLOSURE The invention provides a method of forming plastic tubing and particularly double-walled plastic bags wherein the seal area is strengthened by utilizing a plurality of layers of material in the seal area.
446144
Aubry Paul E.
Poklukar Josef
Fincham Eric
Inc. Amcor Pet Packaging Canada Inc./amcor Emballages Pet Canada
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