B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/92.2, 154/12
B32B 15/08 (2006.01) B65D 65/40 (2006.01) C25D 3/04 (2006.01) C25D 3/30 (2006.01) C25D 5/12 (2006.01) C25D 5/14 (2006.01)
Patent
CA 2019861
A copolyester film was laminated onto a steel sheet, this sheet having double layers consisting of a lower layer of metallic chromium and an upper layer of hydrated chromium oxide on a tin plated steel sheet in which 5 to 40 % of the surface of the steel sheet is covered with plated tin and exposed steel surface and a space between plated tin particles is 0.5 to 50 µm, and a method for production of this copolyester resin film laminated steel sheet which comprises: (a) electroplating with tin under restricted conditions, (b) formation of said double layer on plated tin and exposed steel surface and (c) lamination of the copolyester resin film at above the melting temperature of tin. This copolyester resin film laminated steel sheet is suitable for applications wherein excellent corrosion resistance after severe forming is required, such as deeply drawn cans, drawn and redrawn cans, drawn and stretch formed cans, drawn and partially ironed cans and can ends in which a tab for easy opening is attached.
Fujimoto Terunori
Inui Tsuneo
Ishida Masatoki
Kawamura Hiroaki
Kondo Yoshikazu
Swabey Ogilvy Renault
Toyo Kohan Co. Ltd.
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