| 摘要 |
PURPOSE:To obtain an antimicrobial agent exhibiting remarkable synergistic effect, effective against bacteria, fungi, etc., in alkaline region at a small amount and keeping the effect over a long period by using an N-substituted N- hydroxymethylamine or its polycondensate in combination with a substituted phenol compound. CONSTITUTION:This industrial antimicrobial agent contains at least one kind of N-substituted N-hydroxymethylamine of formula I (R is an alkyl; (n) is 1-3) or its polycondensate (including the compound of formula II when n=3) in combination with at least one kind of a substituted phenol compound selected from the compound of formula III ((m) is 1 or 2) and the compound of formula IV (R<1> and R<2> are each H or a halogen; R<2> is H or OH; X is a bond, an alkylene or S). The compounding ratio of the compound of formula I or its polycondensate to the compound of formula III or formula IV is especially preferably 9:1 to 1:9. The system to be treated with the industrial antimicrobial agent preferably contains water and its pH is preferably alkaline side, especially >=9. |
