| 摘要 |
PURPOSE: To obtain an inorganic antimicrobial agent showing sufficient antimicrobial action on various materials such as synthetic resins, coating specific compounds and rubber. CONSTITUTION: This inorganic antimicrobial agent comprises inorganic powder supporting silver sulfate and zinc oxide, preferably zinc oxide of single crystal of tetrapot-like three-dimensional crystal structure. The inorganic powder has preferably <=10μm, especially <=5μm average primary particle diameter. Inorganic powder selected from calcium phosphate, silica gel, barium sulfate and titanium oxide is used as the inorganic powder. The amount of silver sulfate supported is >=0.04% and <5.0%, especially preferably >=0.3% and <1.8%. The ratio of zinc oxide to the inorganic powder supporting silver sulfate is selected from the range between 0.2:99.8 to 30:70.
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