Antimicrobial composition having resistance to heat and weathers
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United States of America Patent
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Mar 29, 1994
Grant Date -
N/A
app pub date -
Aug 29, 1991
filing date -
Mar 22, 1991
priority date (Note) -
Expired
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Abstract
A silica gel based heat-resistant and weatherproof antimicrobial composition having an aluminosilicate layer on the surfaces of pores in the silica gel as substituted by silver and an optional antimicrobial metal, said composition containing ion-exchangeable metals that are chiefly an alkali metal and that are present in an amount of up to 2.57 mmol per gram of said composition on an anhydrous basis.
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