Process for manufacturing a can lid

Details Process for manufacturing a can lid Process for manufacturing a can lid

1983-02-16

1984-07-31

Gilden, Leon

Sheet metal container making

Method

Forming or treating metallic closure

156 69, 220359, B21D 5100

Patent

active

044627327

ABSTRACT:
Can lids made of metal, lacquered on both sides and featuring a pouring outlet covered over with a closure strip having a sealing surface of polyamide, often exhibit inadequate bond strength between the closure strip and the lacquered can lid surface. The bond strength can be increased if the can lid, after the closure strip has been sealed onto it, is heated until the polyamide melts and then the can lid with closure strip is subsequently cooled.

REFERENCES:
patent: 3855026 (1974-12-01), Fox et al.
patent: 4232797 (1980-11-01), Walerburg
patent: 4332846 (1982-06-01), Fischer et al.
patent: 4390104 (1983-06-01), Cummings

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