Solution stabilization additive, isothiazolinone-containing composition solution capable of using by direct dilution and application thereof

A technology of isothiazolinone derivatives and stabilization aids, applied in the field of solution stabilization aids, can solve the problem that the isothiazolinone solution is not as effective as nitrite metal salts or nitrate metal salts, electrochemical corrosion of system metal heat exchangers, Unqualified production and other problems, to achieve the effect of low cost of use, fast sterilization rate, and long action time

CN103875656AInactive Publication Date: 2014-06-25广东金天擎化工科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2014-06-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a solution stabilization additive, an isothiazolinone-containing composition solution capable of being used by direct dilution and application thereof. The isothiazolinone-containing composition solution capable of being used by direct dilution comprises 0.5 to 20% by weight of an isothiazolone derivative, 5 to 15% by weight of the solution stabilization additive and the balance of a solvent, wherein the isothiazolone derivative is a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, and the solution stabilization additive comprises 2-bromo-2-nitro 1, 3-propylene glycol, a magnesium salt and at least one substance selected from the group consisting of poly epoxy succinate sodium, sodium diacetate, sodium glycinate, sodium tartrate and sodium malate. The isothiazolinone-containing composition solution contains no formaldehyde, methanol and copper ions, is environment friendly, and completely avoids the corrosion of the copper ions on system equipment; the isothiazolinone-containing composition solution as a bactericide is rapid in bactericidal rate, strong in antibacterial ability, long in effect time and better in stability, can be used by direct dilution, and is convenient for users to use and lower in cost.
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Description

technical field

[0001] The invention relates to a solution stabilization aid, a composition solution containing isothiazolinone and application thereof. Background technique

[0002] The use of isothiazolin-3-one can control the growth of microorganisms in industrial environments (metal fluids, cooling water in cooling towers, emulsions, plastic films, etc.), and the addition of system stabilizers enables isothiazolin-3-ones to obtain long-term bactericidal activity. Although formaldehyde or formaldehyde-releasing chemicals are common system stabilizers, they are best avoided due to their volatility, high-temperature degradation, relatively high cost, difficult handling, and potential toxicity. Typical system stabilizers include nitrates, for example, isothiazolinone derivatives - CMIT / MIT mixture is used as a bactericide and algicide for industrial circulating cooling water, the commercial concentration is 1.5%, and usually 2 to 4‰ should be added to the formula Copper ni...

Examples

Embodiment 1～10

[0033] Examples 1-10 illustrate the solution stabilization aids provided by the present invention, and the ratio of each aid is shown in Table 1.

[0034] Table 1

[0035]

Embodiment 11

[0037] This example illustrates the isothiazolinone-containing composition solutions provided by the present invention.

[0038] The isothiazolinone-containing composition solution of the present embodiment consists of 14.2% by weight of isothiazolinone derivatives (5-chloro-2-methyl-4-isothiazolin-3-ketone and 2-methyl-4 - The weight ratio of isothiazolin-3-one 2.55:1), 10% by weight of solution stabilization aid A and 75.8% by weight of water. No. Y1

Embodiment 12

[0040] This example illustrates the isothiazolinone-containing composition solutions provided by the present invention.

[0041] The isothiazolinone-containing composition solution of the present embodiment consists of 12% by weight of isothiazolinone derivatives (5-chloro-2-methyl-4-isothiazolin-3-ketone and 2-methyl-4 - Isothiazolin-3-one in a weight ratio of 3:1), 10% by weight of solution stabilization aid B and 78% by weight of water. Number Y2.

[0042]