| 摘要 |
PROBLEM TO BE SOLVED: To provide a silicon rubber die having a hardness which makes the die itself less prone to deform under the pressure during injection molding. SOLUTION: Eggshells of an industrial waste are pulverized, and the resultant powder is added to a silicon rubber material, to obtain a silicon rubber die having the most suitable hardness. COPYRIGHT: (C)2006,JPO&NCIPI
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