PURPOSE: To obtain an antimicrobial agent capable of exhibiting antifungal, antimicrobial and antialgal properties for a long period without deteriorating the antimicrobial properties even in severe environment such as exposure to sunrays or a high-temperature atmosphere or contact with an acidic solution.
CONSTITUTION: An antimicrobial agent composed of a specific phosphate-based compound represented by a compound expressed by the following general formula. AgaAbM2c(PO4)d.nH2O [A is at least one metallic ion selected from alkali metallic ions, etc.; M2 is tetravalent metal; (n) is a number satisfying 0≤n≤6; both (a) and (b) are positive numbers; (c) and (d) are as follows; when (a+mb) is 1; (c) is 2 and (d) is 3; when (a+mb) is 2, (c) is 1 and (d) is 2, provided that (m) is the valence of A].
INOUE HIDETAKE
TAKAGI OSAMU
MAEKAWA SATOSHI
KOMA HIROKI
