Method of preventing corrosion of uncoated aluminum sheet or bev

Details Method of preventing corrosion of uncoated aluminum sheet or bev Method of preventing corrosion of uncoated aluminum sheet or bev

1986-06-30

1987-11-10

Silverberg, Sam

Coating processes

Interior of hollow article coating

Metal base

25238952, 2523892, 106 1412, 427435, C23F 1104

Patent

active

047057033

ABSTRACT:
A method for eliminating or reducing dome staining during the pasteurization of aluminum beverage cans involves the addition of zinc, orthophosphate, a zinc stabilizing polymer and, optionally, organophosphonate corrosion inhibitors and/or other known corrosion inhibitors. The zinc stabilizing polymer contains at least 25 weight percent acrylic acid, methacrylic acid, their water soluble salts, or admixtures thereof. These polymers may be homopolymers, copolymers, terpolymers, and above.

REFERENCES:
patent: 3837928 (1974-09-01), Morrison
patent: 3941562 (1976-03-01), Hollingshad
patent: 4052232 (1977-10-01), Brock
patent: 4297237 (1981-10-01), Boffardi

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