| 摘要 |
PROBLEM TO BE SOLVED: To provide an antimicrobial agent composition for a medical tool made of a vinyl chloride resin having excellent antimicrobial properties, and the medical tool made of the antimicrobial vinyl chloride resin prepared by adding the antimicrobial agent composition. SOLUTION: (a) A cyclic organophosphoric ester compound is represented by following general formula (I) (wherein, R1 , R2 and R3 denote each independently hydrogen atom or a 1-18C straight-chain or branched alkyl group; R4 denotes hydrogen atom or methyl group; n denotes 1 or 2; and M denotes hydrogen atom or an alkali metal when n is 1 and M denotes an alkaline earth metal or zinc atom when n is 2). (b) The antimicrobial agent composition is obtained by compounding a pyrithione compound represented by following general formula (II) (wherein, M2 denotes an alkali metal, alkaline earth metal, zinc atom, copper atom or aluminum atom; and n2 denotes the same number as the valence of M2 ).
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