Receptacles – Closures – With closure opening arrangements for means
Patent
1987-03-18
1988-08-09
Welsh, J. David
Receptacles
Closures
With closure opening arrangements for means
220270, 428 64, 428 66, F23Q 722
Patent
active
047622458
ABSTRACT:
A score line defining a portion to be opened is formed on a chromated surface treated steel plate coated with an epoxy type primer so that the score line is cut to the middle of the steel plate in the thickness direction thereof, and an opening tab is bonded and secured to the portion to be opened of the steel plate through a bonding fulcrum composed of a thermoplastic adhesive consisting of amide recurring units and/or ester recurring units so that the push-tearing top end of the opening tab is located on the score line.
REFERENCES:
patent: 4403710 (1983-09-01), Hirota et al.
patent: 4428494 (1984-01-01), Hirota et al.
Kobayashi Seishichi
Matsubayashi Hiroshi
Sue Toshio
Taira Kazuo
Watanabe Naoto
Toyo Seikan Kaisha Ltd.
Welsh J. David
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