Compositions – Reductive bleachant – deoxidant – reductant – or generative – Deoxidant or oxygen scavenging
Patent
1996-02-01
1998-03-10
Anthony, Joseph D.
Compositions
Reductive bleachant, deoxidant, reductant, or generative
Deoxidant or oxygen scavenging
252194, 252397, C09K 1502
Patent
active
057257957
ABSTRACT:
By using diatomaceous earth as the moisture donor for solving the problems of the oxygen absorbers employing the conventional moisture containing materials, there are provided a practically excellent oxygen absorber capable of forming a compact oxygen absorber package with high cost performance and a higher oxygen adsorptivity at a less carrier content, and a method for producing the same. The oxygen absorber comprises iron powder, an oxidation accelating agent, a filler and a moisture donor produced by immersing diatomaceous earth having an adsorptivity showing a equilibrium humidity of 55% or more at a moisture content of 2% by weight in water or a humidifying agent. By using the diatomaceous earth having the specific adsorptivity as a moisture donors an oxygen absorber package can be prepared, having higher oxygen adsorptivity with a lower carrier content and being of a compact size to be placed in any location. Additionally, an oxygen absorber can be provided, being excellent in terms of safety and hygiene, low in cost, and allowing excellent practical application.
REFERENCES:
patent: 3855307 (1974-12-01), Rony et al.
patent: 4036928 (1977-07-01), Valenta
patent: 4127503 (1978-11-01), Yoshikawa et al.
patent: 4192773 (1980-03-01), Yoshikawa et al.
patent: 5241149 (1993-08-01), Watanabe et al.
Anthony Joseph D.
Mitsubishi Gas Chemical Company Inc.
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