C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
190/47.1, 204/91
C08J 3/28 (2006.01) B21D 22/20 (2006.01) B32B 15/08 (2006.01) B65D 1/12 (2006.01) B65D 25/14 (2006.01)
Patent
CA 1184875
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 draw-redraw food and beverage cans is eliminated by using as such can feedstock a laminated or extrusion coated steel sheet (e.g., such as electrolytic chrome/chrome oxide coated steel) having adhered to both major planar surfaces thereof an irradiated multilayered synthetic thermo- plastic resin coating comprising: (1) an adhesive synthetic thermoplastic resin inner layer which is composed of at least a major proportion of a normally solid random copolymer of ethylene with from 1 to 30 weight percent, based upon the weight of such copolymer, of an ethylenically unsaturated carboxylic acid monomer and which is bonded directly to the surface of said steel sheet 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.
398794
Hitchcock Martin K.
Potter Craig W.
Romesberg Floyd E.
Smart & Biggar
The Dow Chemical Company
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