| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a powder deterioration preventing agent, a storing method and a powder deterioration preventing method which can effectively prevent caking or coloring. <P>SOLUTION: The powder deterioration preventing agent includes activated carbon. The storing method and the powder deterioration preventing method use the agent. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
