Antimicrobial agent

Details Antimicrobial agent Antimicrobial agent

1996-10-02

1998-04-21

Reamer, James H.

Drug, bio-affecting and body treating compositions

Inorganic active ingredient containing

Heavy metal or compound thereof

424633, 424641, 524431, 524432, 524433, 524436, A61K 3334, C08K 322

Patent

active

057415269

ABSTRACT:
An antimicrobial agent containing at least one of an oxide solid solution of the formula (1), O (1)
wherein M.sub.1.sup.2+ is Zn.sup.2+ and/or Cu.sup.2+, M.sub.2.sup.2+ is Mg.sup.2+ and/or Ca.sup.2+, M.sup.3+ is at least one trivalent metal selected from Al.sup.3+, Fe.sup.3+, Co.sup.3+, Cr.sup.3+, In.sup.3+ and Bi.sup.3+, x is a number in the range of 0.01.ltoreq.x<0.5, y is a number in the range of 0<y.ltoreq.1, and x-a shows that the number of M.sup.3+ is decreased by a due to a lattice defect,
and a hydrotalcite compound of the formula (2), (OH).sub.2 A.sup.n-.sub.x
.mH.sub.2 O (2)
wherein M.sub.1.sup.2+, M.sub.2.sup.2+ and M.sup.3+ are as defined in the formula (1), A.sup.n- is an anion having a valence of n, x is as defined in the formula (1), y is a number in the range of 0<y<0.5, and m is a number in the range of 0.ltoreq.m.ltoreq.2, the above antimicrobial agent being free of, or almost free of, toxicity, excellent in heat resistance and weatherability, less expensive and excellent in dispersibility in resins, rubbers and fibers.

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