Welded cans

Details Welded cans Welded cans

1991-12-27

1995-04-25

Robinson, Ellis P.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220457, 428 358, 428 359, 428192, 428458, 428480, 428910, B65D 2302, B65D 2514

Patent

active

054091292

ABSTRACT:
A tinned steel sheet having a tin deposit obtained by evenly plating tin on the surface of a base steel sheet at a deposition rate of 0.5-1.7 g/m.sup.2 is used as a surface-treated steel sheet for forming a can body. A biaxially oriented polyester film having a thickness of 5-50 .mu.m is caused to adhere to the surface-treated steel sheet with a thermosetting resin adhesive at a temperature of 180.degree.-225.degree. C. as a protective coat. The tinned steel sheet has, on its both ends, two layers of a tin-iron alloy layer having a deposition rate of 0.35-1.60 g/m.sup.2 in terms of tin content and a tin layer having a tin deposition rate of 0.10-1.35 g/m.sup.2 at a stage after the adhesion of the polyester film but before welding. Said both ends of the surface-treated steel sheet are welded to each other, and another protective coat is applied to a portion of the inner surface, which is not covered with the first-mentioned protective coat, thereby forming a welded can.

REFERENCES:
patent: 4382525 (1983-05-01), Kobayashi et al.
patent: 4387830 (1983-06-01), Kitamura et al.
patent: 4477501 (1984-10-01), Kojima
patent: 4735835 (1988-04-01), Taira et al.
patent: 4916031 (1990-04-01), Kitamura et al.

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