Adhesion promoters for sanitary can coatings

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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428416, 428418, 523100, 523451, 523453, 523455, 524394, B65D 112, B44D 150, C09D 358, C09D 540

Patent

active

044762631

ABSTRACT:
Certain alkali metal salts of organic diacids having one or more hydroxyl functional groups, as for example sodium and potassium citrate, provide improved adhesion of organic coatings electrodeposited on metal substrate. The new sanitary coatings are particularly useful for untreated aluminum and aluminum alloy cans used in the packaging of various food products including acidic foods like tomatoes, corn, and green beans which require in-can-sterilization.

REFERENCES:
patent: 3997694 (1976-12-01), Wu
patent: 4127451 (1978-11-01), Marceau et al.
patent: 4212776 (1980-07-01), Martinez et al.
patent: 4278718 (1981-07-01), Billings et al.
patent: 4289674 (1981-09-01), Christenson et al.

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