Germicidal ceramics, method for producing the same, and sterilizing method using the same
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United States of America Patent
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Mar 11, 2003
Grant Date -
N/A
app pub date -
Jun 22, 2001
filing date -
Dec 24, 1998
priority date (Note) -
Expired
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Abstract
A germicidal ceramics of an excellent germicidal ability without releasing any substance to damage health of animals and plants, a method for producing the same and a sterilizing method using the same are provided. The germicidal ceramics is produced by mixing zeolite and clamshell in a weight ratio of 90:10 to 50:50 and then pulverizing the both into particles having an average size of not more than 200 .mu.m. Alternatively, the germicidal ceramics is produced by mixing, in a weight ratio of 90:10 to 50:50, zeolite powder and clamshell powder previously pulverized into the particles having an average size of not more than 200 .mu.m respectively to prepare mixed powder, then compacting the mixed powder to obtain a compact which is heated at 100 to 300.degree. C. and at 400 to 650.degree. C. in a stepwise manner, and sintering the compact at 700 to 1050.degree. C. The bacteria is sterilized by the germicidal ceramics immersed in a liquid in which the bacteria exist.
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