Oxygen absorbent
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsYoshio Yoshikawa, Akira Amemiya, Toshio Komatsu, Yoshiaki Inoue, Megumu Yuyama
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Abstract
An oxygen absorbent comprising a metal powder and a metal halide coated thereon is disclosed.
Claims54
An oxygen absorbent in which at least one metal halide is coated on the surface of at least one metal powder, the amount of metal halide coated being in the range of from about 0.001 to about 10 parts by weight per 100 parts by weight of the metal powder, the water content of the absorbent being less than 1% by weight based on the basis of total weight of the absorbent.
An oxygen absorbent in which at least one metal halide and at least one binder and/or at least one alkaline material are coated on the surface of at least one metal powder, the amount of the metal halide coated being in the range of from about 0.001 to about 10 parts by weight per 100 parts by weight of the metal powder, the water content of the absorbent being less than 1% by weight on the basis of total weight of the absorbent.
A process for producing an oxygen absorbent, characterized by mixing at least one metal powder with a solution of at least one metal halide to coat metal halide on the surface of the metal powder, the amount of the metal halide coated being in the range of from about 0.001 part to about 10 parts by weight per 100 parts by weight of the metal powder, and then drying the coating until its water content amounts to less than 1% by weight on the basis of total weight of the absorbent.
A process for producing an oxygen absorbent, characterized by mixing at least one metal powder with at least one metal halide solution and at least binder and/or at least one alkaline material to coat the metal halide and the binder and/or the alkaline material on the surface of the metal powder, the amount of the metal halide coated being in the range of from about 0.001 part to about 10 parts by weight per 100 parts by weight of the metal powder, and then drying the coating until its water content amounts to less than 1% by weight on the basis of total weight of the absorbent.
Dependencies are inferred from the claim text.