Abstract: The invention relates to can body stock having opposed surfaces. The can body stock has a core layer, a cladding layer at a first surface (intended to form an exterior surface of an eventual container body), and optionally a cladding layer at a second surface (intended to form an interior surface of an eventual container body). The cladding layer at the first surface is made of alloy AA3104 or AA3004 (or a modified version of AA3004 or AA3104 containing more iron and optionally more silicon), and the core layer is an aluminum alloy having yield strength less than that of the aluminum alloy of the cladding layer at the first surface. The can body stock may be used to produce a container body by a method involving drawing and ironing, as well as die necking to reduce the diameter of the open end of the container body.

Abstract: Exemplary embodiments of the invention relate to a sheet article having opposed first and second surfaces, and having a core layer, a cladding layer at the first surface of the sheet article, and optionally a cladding layer at the second surface of the sheet article. The cladding layer at the first surface is made of an aluminum alloy selected from alloys AA3104, AA3004 and modified versions of alloys AA3104 and AA3004 additionally containing 1.0 to 2.0 wt % Fe and optionally up to 1 wt % Si. The core layer is an aluminum alloy having a yield strength and/or ductility greater than the yield strength and/or ductility of the alloy of the cladding layer at the first surface. The sheet article may be used as can body stock, can end stock and tab stock.

Abstract: A container such as a can of carbonated beverage, including an upwardly open metal body having a sidewall with an annular upper portion having a reduced-diameter neck formed therein, and a metal top structure such as a lid having an annular portion secured to the annular upper portion of the sidewall along an annular seam extending outwardly and substantially horizontally or downwardly, from the sidewall. The sidewall edge portion is formed into an outwardly projecting annular flange immediately above the neck, the annular lid portion overlies the annular flange, and the seam includes a metal member holding the annular peripheral lid portion and the annular flange together. The lid may be upwardly domed by internal pressure. A method of producing the container by filling it, adhesively bonding the lid to the flange, and forming the metal seam member.