B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 3/22 (2006.01) B31B 1/26 (2006.01)
Patent
CA 2588413
A method of forming a paper container uses a three-ply corrugated material having at an outer sheet of paper that may be stretched circumferentially to permit subsequent rolling of the corrugated material about a mandrel and an inner sheet of paper that can be stretched circumferentially to assist in rolling the lip of the cup and/or attaching the bottom to the cup. An extensible paper having two axes of extension of over four percent can be used for one or both of the paper layers.
Borden Ladner Gervais Llp
Zadravetz Robert B.
LandOfFree
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