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Isothiazolinone composition

A technology of isothiazolinone and composition, which is applied in the field of isothiazolinone composition, can solve the problems of biological activity reduction, incompatibility, and precipitation, and achieve excellent stability, growth inhibition, and wide application range

Active Publication Date: 2015-01-21
DALIAN BIO CHEM
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the problem of isothiazolinone compounds is that the long-term storage performance is not stable enough, and the biological activity will decrease with the passage of time, which will affect the effect of fungicides. A common solution is to add stabilizers to isothiazolinone compounds
[0005] The addition of organic stabilizers to isothiazolinone compounds is not very stable, and it is easy to spontaneously form precipitates; due to the oxidizing properties of these stabilizers, there will be incompatibility problems when compatible with other ingredients; in addition, formaldehyde or formaldehyde releasers are Toxic and harmful substances, not conducive to promotion and use

Method used

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Embodiment Construction

[0011] The preparation process of the 3-isothiazolinone composition of the present invention is: neutralize the 3-isothiazolinone compound in water with 1,3,5-triazacyclohexane, the pH value is 2.0-3.0, add Bipyridinethione, stirred evenly to obtain 3-isothiazolinone composition product.

[0012] The composition and content of the formulated 3-isothiazolinone compositions are shown in the table.

[0013]

[0014] The 3-isothiazolinone compound in the component is a mixture of 5-chloro-2-methyl-3-isothiazolinone and 2-methyl-3-isothiazolinone, and the ratio between the two (weight ratio) is 1:100 to 100:1, the preferred ratio is 1:10 to 10:1, and the most preferred ratio is 3:1.

[0015] The solvent in the components is water.

[0016] The 3-isothiazolinone composition prepared according to the components and contents in the above examples was stored at 60° C. for more than 30 days and no precipitation was observed. The concentration of the main active ingredients 5-chlor...

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Abstract

The invention relates to an isothiazolinone composition. The isothiazolinone composition is characterized by comprising 1 to 15wt% of a 3-isothiazolinone compound, 0.05 to 0.2wt% of bispyrithione, 0.2 to 5wt% of 1,3,5-triazaphosphorine and the balance of one or more solvents. The isothiazolinone composition has excellent stability, does not contain inorganic salts and organic solvents, can be used in a dispersion solution or an emulsion or latex, has a wide application range and can effectively inhibit growth of harmful microorganisms.

Description

technical field [0001] The present invention relates to a fungicide, especially an isothiazolinone composition. Background technique [0002] Isothiazolinone compound is a new type of broad-spectrum fungicide, which has the advantages of high efficiency, broad-spectrum, low toxicity, and natural degradation in the environment. It is widely used in industrial water treatment, industrial oil additives, building material anticorrosion, and electric power metallurgy. , Oilfield chemical industry, leather, paint coating, textile, printing and dyeing, daily chemical, cosmetics, papermaking, emulsion and other fields. However, the problems of isothiazolinone compounds are: the long-term storage performance is not stable enough, and the biological activity will decrease with the passage of time, which will affect the effect of fungicides. A common solution is to add stabilizers to isothiazolinone compounds. [0003] U.S. Patent No. 3,870,795 discloses a method for stabilizing 3-iso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/80A01N25/22A01P1/00A01P3/00
Inventor 刘宪武刘海龙顾振鹏薛春华王勇
Owner DALIAN BIO CHEM
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