Nippon Steel Corporation

Kansai Paint Company, Ltd.

Suntory Limited

Toagosei Chemical Industry, Co., Ltd.

Hidejiro Asano

Shigeyoshi Maeda

Yashichi Oyagi

Joji Oka

Haruyoshi Taguchi

Tsunetoshi Asai

Takahisa Ogasawara

Kiyokazu Mizutani

Katushi Saito

Yoshitaka Hiromae

Takatoshi Egawa

Nagaharu Ueno

Nobuichi Arai

Masashi Takasugi

Yoshiitsu Tominaga

A sealed container material having a deoxidation function comprises a metallic base material reactive with oxygen and a hydrophilic coating layer of water-soluble polymer such as hydroxyethyl cellulose formed on the surface of the metallic base material. An oxygen- and moisture-permeable coating layer composed of a polymethylpentene resin may further be provided on the hydrophilic coating layer. The material exhibits an excellent oxygen absorbing ability and is thus suited as a material for sealed containers, such as cans, bottles, capsules, etc., for encasing food, drink, chemicals, and medical drugs and storing them over a long period of time without denaturation or deterioration.

Materials having a deoxidation function and a method of removing oxygen

A sealed container material having a deoxidation function comprises a metallic base material reactive with oxygen and a hydrophilic coating layer of water-soluble polymer such as hydroxyethyl cellulose formed on the surface of the metallic base material. An oxygen- and moisture-permeable coating layer composed of a silicone resin or an olefin resin may further be provided on the hydrophilic coating layer. The material exhibits an excellent oxygen absorbing ability and is thus suited as a material for sealed containers, such as cans, bottles, capsules, etc., for encasing food, drink, chemicals, and medical drugs and storing them over a long period of time without denaturation or deterioration.

The present invention relates to a steel sheet for use in the manufacture of an end for a so-called easy-to-open can, a score being formed on the end. An object of the present invention is to provide an improved steel sheet which can be used as such end instead of conventional aluminum and which can impart an easy-to-open property thereto. A steel sheet according to the present invention consists essentially of from 0.06% to 0.25% of C, and the balance being essentially Fe and unavoidable impurities, and the cementite particles formed in the steel sheet have an average diameter of from 0.05 .mu.m to 0.5 .mu.m. Since the cementite is fine, the can-opening force can be decreased and the formability of the can end is excellent even at a high strength of the steel sheet. The present invention also provides an end made of the above-mentioned steel sheet and a process comprising the steps of hot-rolling the steel at an austenite temperature range, cooling a formed steel strip at a cooling rate of 30.degree. C./sec or more and then coiling it at a temperature range of from 450.degree. C. to 620.degree. C., and cold-rolling and recrystallization-annealing at a temperature of 680.degree. C. or less.

Steel sheet, and a production process therefor, for use in the

A precoated steel sheet and a process for production thereof is provided which comprises coating a resin composition comprising mainly an acryloxyloxy- or methacryloyloxy-terminated polyester on the surface of a steel sheet, said acryloyloxy- or methacryloyloxy-terminated polyester being prepared by reacting a hydroxy-terminated polyester comprising (a) a dicarboxylic acid unit containing about 10 to about 80 mol % of a terephthalic acid unit and (b) dihydric alcohol unit containing about 30 mol % or more of a dihydric alcohol unit containing 3 or more carbon atoms, and having a number average molecular weight of about 400 to about 5,000, with acrylic acid or methacrylic acid, and curing the thus-coated resin composition by irradiating the sheet with an electron beam.

Pre-coated steel sheets and process for production thereof

Electroplating in an acidic zinc-nickel alloy plating bath containing vanadium ions as a third component provides a plating having a surprisingly high level of corrosion resistance equal to about 10 times that of pure zinc.

Process for producing a highly corrosion resistant electroplated steel

A complex film is formed on a steel sheet by coating thereto an aqueous solution of ammonium phosphate, ammonium molybdate, nickel aceptate, etc., heating the same and further coating a lubrication oil containing an animal or vegetable oil or fat or a mineral oil with a high molecular compound and a higher fatty acid, whereby a steel sheet showing excellent lubricity in ironing is given. The effect can be improved by adding cobalt, nickel, chrome salts to the aqueous solutions.

Method for the manufacture of a steel sheet adapted for use in ironing

A method for treating the surface of a steel sheet adapted for use in making a container or can is provided. A nickel-defused layer is first formed while recrystallization annealing is conducted, upon which layer a film of chromium is plated after temper rolling or double cold rolling. The good lacquer adhesion property of the Cr layer and the good formability of the Ni layer will synergetically act so as to give an excellent anti-corrosion property to a material for cans.

Method for the manufacture of a steel sheet having a Ni-diffused base

A steel plate for preparing cans by ironing having on its surface a composite oil coating which comprises a base oil and one or more, each amounting to 3 to 50 parts, selective from the group comprising of polybutene, polypropylene, polyethylene and ethyl or methyl polymethacrylate, the average molecular weight for each being in the range 500 to 30,000.

Steel plate for preparing cans by ironing

A steel sheet having a Ni or Cu base plating layer and a Sn upper plating layer characterized by the absence of any alloy layer intervening therebetween is subjected to an ironing operation with the thickness of the plating being relatively small. The internal surface of the can thus formed is provided with an organic coating for packing foodstuffs including effervescent beverages.

Container or can and a method for manufacturing the same

An oil-coated metal sheet coated with a surface coating oil in an amount of from 0.05 - 1.0 g/B.B., said surface coating oil comprising diisodecyl phthalate and 0.1 -5% of one or more of a fatty acid having 14-18 carbon atoms.

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Tokyo, Japan

Hidejiro Asano