| abstract |
The object of this invention is to provide antimicrobial particles that can maintain, for a long period of time, antimicrobial activities in particular the antimicrobial activities after they come in contact with tap water. n This invention includes antimicrobial particles formed of a compound of the following formula (1), a process for the preparation thereof and an antimicrobial composition containing the said particles, n n [Ag a B 1-a ]b[M n+ c Al 1-cn/3 ] d A x (SO 4 ) y (OH) z ·pH 2 O (1) n nwherein B is at least one monovalent cation selected from the group consisting of Na + , NH 4 + , K + and H 3 O + , M n+ is a metal ion composed mainly of Cu 2+ , n is a valence number of the metal ion and A is an anion mainly composed of an organic acid. |