Bactericidal composition and sterilization method

The combination of bromide, tetrachlorodeca oxide, and organic fungicides with hypochlorous acid in water treatment systems addresses the limitations of existing sterilization methods, providing sustained bactericidal action and reducing equipment corrosion.

JP2025037426APending Publication Date: 2025-03-18TOHZAI CHEM IND LT
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Patent Information

Application Number
JP2023144356
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-06
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

Existing sterilization methods using hypobromous acid have limited sustained bactericidal action, leading to ineffective sterilization of general bacteria dispersed in water systems, and increasing the risk of equipment corrosion when higher concentrations of hypochlorite compounds are used.

Method used

A fungicide composition comprising bromide, tetrachlorodeca oxide, and an organic fungicide, such as isothiazoline-based or pyrithione-based fungicides, is added to water to be treated, along with hypochlorous acid or hypochlorite, to enhance sustainable sterilization without increasing corrosion risk.

Benefits of technology

The proposed solution achieves a sustained sterilization effect while minimizing equipment corrosion, by maintaining effective bactericidal action and optimizing the concentration of active components.

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Abstract

To enhance the persistence of the bactericidal effect without increasing the risk of corrosion of equipment.SOLUTION: A bactericidal composition comprises bromide, tetrachlorodecaoxide, and an organic bactericide, where the organic bactericide is selected from the group consisting of isothiazoline-based bactericides, pyrithione-based bactericides, cationic bactericides, aromatic carboxylic acid-based bactericides, aldehyde-based bactericides, compounds represented by Formula (1), and combinations thereof. In Formula (1), R1 is a nitrile group or a hydroxymethyl group, and R2 is an amide group or a nitro group.SELECTED DRAWING: None
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