| 摘要 |
PURPOSE:To keep oxygen scavenging reaction under a high humidity condition for a long period of time, by preparing an oxygen scavenger by combining an oxidizable metal powder component with an electrolyte component and compounding a water absorbable and swellable polymer powder with the resulting composition. CONSTITUTION:An oxidizable metal powder, an electrolyte powder and a water absorbable and swellable polymer powder are mixed using a mixing apparatus for acting friction force and/or shearing force such as a friction disc mill or a Hensel mixer to obtain an oxygen scavenger. As the oxidizable metal powder, there are iron, cobalt and nickel, etc. and the particle size thereof is pref. 100-10mum. As the electrolyte component, there are alkali metal halide and alkaline earth metal halide and the particle size thereof is pref. 100-10mum. As the water absorbable and swellable polymer powder, there are carboxy methyl cellulose and a starch/polyacrylonitrile hydrolysate, etc.
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