Multicoated steel sheet susceptible to cationic electrodepositio

Details Multicoated steel sheet susceptible to cationic electrodepositio Multicoated steel sheet susceptible to cationic electrodepositio

1987-07-28

1992-04-07

Dean, R.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428626, 428659, 427386, 4273881, B32B 1504

Patent

active

051027461

ABSTRACT:
This invention provides an organic multicoated steel sheet susceptible to cationic electrodeposition coating which comprises a zinc or zinc alloy plated steel sheet and as a first layer provided on the surface of said plated steel sheet a sparely soluble chromate film of 1-30% in water soluble matter, 0.01-1.0 in Cr.sup.6+ /Cr.sup.3+ ratio and 10-150 mg/m.sup.2 in total chromium application amount on one surface and as a second layer provided said first layer a solid film having a thickness of 0.3-5 .mu.m of a solvent type coating composition having the following composition based on the weight of non-volatile matter:

REFERENCES:
patent: 4659394 (1987-04-01), Hara et al.
patent: 4775600 (1988-10-01), Adaniya et al.

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