B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
18/1074, 190/43
B65D 1/40 (2006.01) B29C 43/18 (2006.01) B29C 43/20 (2006.01) B29C 51/14 (2006.01) B29C 51/26 (2006.01) B65D 1/28 (2006.01)
Patent
CA 2027993
32 ABSTRACT OF THE DISCLOSURE A multilayer container with a flange for sealing with a lid, wherein the thickness of the inner surface layer at the inner edge of the flange is thinner than that in the sealing area, is produced by a method wherein a circular portion of a multilayer sheet to be the flange is held at a certain pressure while the multilayer sheet is being thermoformed under specified molding conditions, with the other portion than the circular portion being stretched. Even a seal ring having an even surface serves as a means for sealing the resulting multilayer container with a lid while ensuring easy openability.
Maeda Hiroshi
Odaka Hiroshi
Takahashi Hiroyuki
Yamada Toyokazu
Idemitsu Kosan Co. Ltd.
Kirby Eades Gale Baker
LandOfFree
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