Coated metal plate for cans and seamless cans formed therefrom

Details Coated metal plate for cans and seamless cans formed therefrom Coated metal plate for cans and seamless cans formed therefrom

1996-03-01

1998-01-06

Seidleck, James J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 357, 428 358, 428 369, 428 3691, 428457, 428458, 220906, B29D 2300

Patent

active

057052409

ABSTRACT:
A polyester laminated draw-formed can which suppresses frothing phenomenon when a carbonated beverage is contained therein and exhibits excellent corrosion resistance, and a coated metal plate used for the production of the cans. The coated metal plate for cans comprises a laminated material of a metal plate, a polyester film layer consisting chiefly of ethylene terephthalate units and, as required, an adhesive primer layer interposed between the metal plate and the polyester film, wherein the polyester film layer that is on the inner surface side of the can has a surface that is molecularly oriented in at least the biaxial directions, and larger protrusions on the surface over a visual field of 100 .mu.m.times.100 .mu.m as observed using an interatomic force microscope (AFM) have an average height (H) of three points of 0.20 .mu.m or smaller.

REFERENCES:
patent: 4143790 (1979-03-01), Ueno et al.
patent: 4362775 (1982-12-01), Yabe et al.
patent: 5093208 (1992-03-01), Heyes et al.
patent: 5137762 (1992-08-01), Aizawa et al.
patent: 5144824 (1992-09-01), Kobayashi et al.
patent: 5288559 (1994-02-01), Oka et al.

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