| 摘要 |
PROBLEM TO BE SOLVED: To stabilize the antimicrobial activity by satisfying the antimicrobial activity in a region causing no significant discoloration without deteriorating the impact resistance inherent in a polycarbonate resin and, at the same time, improving the durability. SOLUTION: An antimicrobial preparation comprising a glass compsn. comprised of P2 O5 : 40 to 55mol%, ZnO: 35 to 45mol%, Al2 O3 : 5 to 15mol%, and B2 O3 : 1 to 10mol%, and contg. Ag2 O in an amt. of 0.3 to 1.0wt.% based on 100 pts.wt. glass compsn. is added in the form of a powder having a particle diameter of not more than 10μm to a polycarbonate resin in an amt. of 0.3 to 1.0wt.% based on 100g of the resin.
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