B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
190/47.1
B65D 23/08 (2006.01) B32B 15/08 (2006.01) B65D 25/14 (2006.01)
Patent
CA 1164373
Abstract of the Disclosure The use of organic solvent-based coating compositions in the preparation of coated steel feed- stock for use in the manufacture of retortable draw- redraw food and beverage cans is eliminated (A) by using as such can feedstock a laminated or extrusion coated steel sheet comprising a steel sheet material (e.g., such as electrolytic chrome/chrome oxide coated steel) having adhered to both major planar surfaces thereof a multilayered synthetic thermoplastic resin coating comprising (1) an adhesive synthetic thermo- plastic resin inner layer (e.g., such as a layer of a normally solid random ethylene/acrylic acid copolymer) bonded directly to the surface of said steel sheet material and (2) an outer layer of a synthetic thermo- plastic polymer resin which has a crystalline melting point of at least about 121°C (250°F) and which is adhered to said adhesive resin inner layer and (B) by post-baking the coated can body formed in such draw- -redraw process at a temperature above the melting point of the highest melting resin component of said thermoplastic resin coating. 29,506-F
398781
Colburn Lyle W.
Potter Craig W.
Romesberg Floyd E.
Smart & Biggar
The Dow Chemical Company
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