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Stable microbicide compositions

A microbicide and microbicide technology, applied in the directions of biocides, biocides, fungicides, etc., can solve the problems of decomposition, limited use, water instability, etc., and achieve decomposition inhibition, low stability, and low cost. Effect

Active Publication Date: 2022-03-11
CHEMICREA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, 5-chloro-2-methyl-4-isothiazolin-3-one (hereinafter referred to as CMI) has the following problem: if used alone, Very unstable to water, will decompose if formulated in aqueous solution
However, since copper ions are environmental pollutants, the Water Pollution Control Act sets a discharge standard of 3 mg / L or less, and its use may still be limited.

Method used

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  • Stable microbicide compositions

Examples

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Effect test

Embodiment 1

[0069]Compositions described in Table 1 using 2,2,6,6-tetramethylpiperidin-1-oxyl as an additive were produced and stored at 55° C. for 20 days to study storage stability. The composition is after mixing the additive with water, adding 5-chloro-2-methyl-4-isothiazolin-3-one (CMI) and 2-methyl-4-isothiazolin-3-one (MI ) and manufactured. The evaluation of stability was carried out visually for the presence or absence of coloring (coloration from yellow to brown) and deposition of precipitates.

Embodiment 2

[0071] Compositions described in Table 1 using 2,2,6,6-tetramethylpiperidin-1-oxyl as an additive were produced and stored at 55° C. for 20 days to study storage stability. The composition is after mixing the additive with diethylene glycol, adding 5-chloro-2-methyl-4-isothiazolin-3-one (CMI) and 2-methyl-4-isothiazoline-3- Ketone (MI) and the manufacture. The evaluation of stability was carried out visually for the presence or absence of coloring (coloration from yellow to brown) and deposition of precipitates.

Embodiment 3

[0073] Compositions described in Table 1 using 2,2,6,6-tetramethylpiperidin-1-oxyl as an additive were produced and stored at 55° C. for 20 days to study storage stability. The composition is after mixing the additive with diethylene glycol monomethyl ether, adding 5-chloro-2-methyl-4-isothiazolin-3-one (CMI) and 2-methyl-4-isothiazoline -3-ketone (MI). The evaluation of stability was carried out visually for the presence or absence of coloring (coloration from yellow to brown) and deposition of precipitates.

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Abstract

The present invention provides an aqueous composition containing a microbicide, which has a good stabilizing effect, of 5-chloro-2-methyl-4-isothiazolin-3-one, and an aqueous composition containing a microbicide containing 5-chloro-2-methyl-4-isothiazolin-3-one. The present invention relates to a microbicide composition containing (A) a 5-chloro-2-methyl-4-isothiazolin-3-one, (B) a 2, 2, 6, 6-tetramethylpiperidine-1-oxygen radical, and (C) one or more types of solvent selected from the group consisting of water and hydrophilic organic solvents, the microbicide composition comprising: (A) a 5-chloro-2-methyl-4-isothiazolin-3-one; (B) a 2, 2, 6, 6-tetramethylpiperidine-1-oxygen radical;

Description

technical field [0001] The present invention relates to a stable microbicide composition. Background technique [0002] In dispersion products such as adhesives, resin emulsions, inks, pastes, coatings, paper, fibers, building materials, and dispersion systems and cooling towers in their manufacturing steps, the organic substances contained in their dispersion systems or products Compounds or inorganic substances are nutrient sources, and microorganisms such as bacteria, yeast, filamentous fungi, and algae proliferate, resulting in reduced product quality and productivity, and infectious diseases. Isothiazolinone-based compounds are used as antimicrobial agents for these problems. Among these isothiazolinone-based compounds, 5-chloro-2-methyl-4-isothiazolin-3-one exhibits microbicidal activity against a wide range of microorganisms and is widely used. [0003] However, 5-chloro-2-methyl-4-isothiazolin-3-one (hereinafter referred to as CMI) has the problem that it is very u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N25/22A01P1/00A01P3/00
CPCA01N43/80A01N25/22C02F1/50C02F2305/04C02F2103/28C02F2103/023C02F2103/14C02F2103/008A01P1/00A01N43/40
Inventor 吉田贵昌野口友昭田口直人楮山真吾
Owner CHEMICREA
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