Toyo Kohan Co., Ltd.

Nobuyuki Tsutsui

Tsuneo Inui

Katsumi Kanda

Hiroaki Kawamura

Terunori Fujimoto

Hitoshi Omura

Keiji Ariga

Takashi Mizobe

A method of treating steel sheets which have good corrosion resistance after forming, which comprises coating a steel sheet with a solution which contains:

Steel sheets and method of treating steel sheets

A steel sheet is provided herein which has been treated to form thereon a first very thin layer of tin and a second layer of hydrated chromium oxide. This treated steel sheet can effectively be coated with an organic coating, and can be used for producing cans for foodstuffs and carbonated beverages.

Steel sheet useful in forming foodstuff and beverage cans

A steel sheet which has been treated to form thereon a first layer of an iron-tin alloy and a second layer of hydrated chromium oxide. This treated steel sheet can be effectively coated with an organic coating, and is useful in forming cans for foodstuffs and carbonated beverages.

A method of providing a composite coated steel sheet is provided herein by dipping a steel sheet into a suspension solution consisting of a water-soluble and/or water-dispersible organic polymer resin, a water-dispersible sol of a metal compound and an infusible powder of a water-insoluble polymer resin, removing the coated steel sheet from the suspension and curing the coated composite by heat treatment. In certain cases, a metal powder, an alloy powder of said metal and a powder of a difficultly water-soluble or water-insoluble compound of said metal may be used in the suspension solution.

Growing community of inventors

Kudamatsu, Japan

Nobuyuki Tsutsui