Steel strip for food packaging

Details Steel strip for food packaging Steel strip for food packaging

1987-06-26

1989-12-12

Roy, Upendra

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428666, 428680, 428684, 428469, B32B 1504

Patent

active

048867128

ABSTRACT:
The suitability of the kind of steel strip known as black plate, optionally coated with small quantities of tin or nickel for food packaging, is greating improved by ensuring the presence of a layer of P-type semiconducting oxide on the surface thereof.
The quality of the plate is yet further improved by coating the oxide surface with a thin chromic passivation layer that also contains a P-type semiconducting oxide.

REFERENCES:
patent: 4429021 (1987-01-01), Higashi et al.
patent: 4501802 (1985-02-01), Higuchi et al.
patent: 4579786 (1986-04-01), Nakakouji et al.
patent: 4601957 (1986-07-01), Fujimoto et al.
patent: 4713301 (1987-12-01), Higuchi et al.

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