KR950006942B1 - Fungicidal paint composition - Google Patents

Abstract

The solid aqueous mothproof coating material compsn. is produced by making an emulsion of an acrylic copolymer and a mothproof material of pyrethroid or organic phosphorus to be a vehicle, mixing a pigment contg. titanium oxide and an additive with the emulsion to make an aqueous mothproof coating material, adsorbing the mothproof material with a titanate cpd., and solidifying the coating material. The mothproof material is pref. d-trans allethrin, dimethrin, tetramethrin, permethrin, deltamethrin or alphamethrin as a pyrethroid cpd. The titanate cpd. is pref. tetraisopropyl titanate.

Description

Solid Water Insect Repellent Composition

The present invention relates to a solid water-based insect repellent coating composition, and particularly to a composition of a solid water-based insect repellent coating having excellent control effect against hygienic pests inhabiting a residential environment, and easy to cut.

The solid water-based insect repellent paint is a gel-like paint composed of an acrylic copolymer emulsion having thixotropy. The coating does not flow or splash during painting, so that anyone can easily paint without contaminating the paint surroundings. It is a multifunctional paint that kills or avoids sanitary pests such as flies, mosquitoes, wheels, and ants that come in contact with them.

Conventional insect repellent paint production method is a method for preparing insecticidal varnishes by combining an organochlorine, organophosphorus and carbamate insect repellent active ingredients (US Pat. No. 3,877,951), insect repellent containing an organophosphorous insect repellent material It is only characterized by blending only insect repellents as paints as an active ingredient, such as a method for producing a membrane (Japanese Patent Laid-Open No. 63-108086) and a method for producing an insect repellent paint containing pyresin and cropyrifoss.

Therefore, there is no known method for preparing an insect repellent paint which maintains the insect repellent effect for a long time through the formulation of a simple coating operation or controlled release of an active ingredient.

Thus, the present invention solidifies the insect repellent paint, a bio-functional paint to paint using a roller (Roller) to simplify the painting work and at the same time to control the release of the insect repellent active ingredient of the new formulation to maintain the insect repellent effect of the coating film for a long time It is an object to provide a solid water-based insect repellent coating composition.

Hereinafter, the present invention will be described in detail.

Insect repellent coating composition of the present invention, an acrylic copolymer as a main colorant, a pyrethroid and organophosphorus insect repellent, a insect repellent adsorbent made of a titanate compound, and a solid water repellent paint composition comprising a pigment and an additive will be.

At this time, the amount of insecticides is 0.1 to 3.0% by weight based on the total paint composition, the amount of titanate compound as an adsorbent is 0.1 to 5.0% by weight.

Hereinafter, the present invention will be described in more detail.

In the present invention, in the case of the general water-based paint, when diluted to coat it, the viscosity is lowered to form a solid irreversible structure to the paint to compensate for the problem that the paint flows or splashes, and at the same time, such a solid water-based paint Insect repellents containing a pyrethroid-based organophosphorus insect repellent and a titanate compound as an adsorbent and a titanate compound as an adsorbent, and the insect repellent active ingredient is adsorbed by the titanate compound to prevent insect repellent effects for a long time even after the film is formed. It is a paint composition.

That is, according to the present invention, an emulsion comprising a pyrethroid-based and organophosphorus-based insecticide combined with an acryl-based copolymer is prepared as a main colorant, and a pigment and an additive including titanium oxide are mixed therein to prepare an aqueous insecticide paint and then titanate. The compound is characterized by adsorbing insect repellent material and solidifying the paint.

Monomers of the acrylic copolymer that can be used in the present invention include ethyl acrylate, methyl methacrylate, butyl acrylate and the like.

In addition, the insect repellent material may be used as the following example, the amount of the insect repellent in the solid water repellent paint is to be contained in 0.1 to 3.0% by weight relative to the total paint composition.

If less than 0.1% by weight of the insect repellent material is difficult to expect the insect repellent effect, when used in excess of 3.0% by weight there is a problem of lowering the paint properties due to the change in viscosity and specific gravity.

[Examples of insecticides]

d-trans alletrin: 2-allyl-4-hydroxy-3-methyl-2-cyclopentene-1 ester of 2,2-dimethyl-3- (2-methylpropenyl) cyclopropanecarboxylic acid

Dimethrin: 2,4-dimethylbenzyl-2,2-dimethyl-3- (2-methylphenyl) cyclopropane carboxylate

Tetramethrin: 1-cyclohexane-1,2-dicarboxymididomethyl-2,2-dimethyl-3- (2-methylpropenyl) -cyclopropane carboxylate

Resmethrin: 3-phenoxybenzyl-d-cis-transxanthatemate (phenotrine) -5-phenylmethyl-3-furanylmethyl-2,2-dimethyl-3- (2-methyl-1- Propenyl) cyclopropane carboxylate

Tuvalate: Cyano- (3-phenoxyphenyl) methyl-4-chloro-alpha (1-methylethylbenzene) acetate

Mermethrin: 3-phenoxyphenylmethane-(+)-cis-trans-3- (2,2-dichloroethenyl) -2,2-dimethylcyclopropane carboxylate

Cipermethrin: (+)-cyano- (3-phenoxyphenylmethyl (+)-cis-trans-3- (2,2-dichloroethenyl) -2,2-dimethyl cyclopropane carboxylate

Deltamethrin: alpha-cyano-3-phenoxybenzyl-d-cis-disbromochlorate temate

Alphamethrins: (IR cis) S and (IR cis) R non-enantiomers of alpha-cyano-3-phenoxybenzyl-3- (2,2-dichlorovinyl-2,2-dimethylcyclopropane carboxylate

Chloropyriphos: O, O-diethyl-O- (3,5,6-trichloro-2-pyridyl) phosphorothioate

Dichlorbose: 2,2-dichlorovinyldiethylphosphate

In addition, in the present invention, the titanate compound, for example, tetraisopropyl titanate, which is a characteristic of the present invention, is added for the purpose of maintaining the insect repellent effect of the coating for a long time by adsorbing the insect repellent material and slowly releasing after forming the coating film. In this case, the amount of use is 0.1 to 5.0% by weight based on the total coating. If the amount is used in excess of 5.0% by weight, there is a problem of a decrease in paint properties due to viscosity change and hiding power.

In addition to these main components, the present invention may include pigments and additives as necessary.

The solid water repellent paint of the present invention prepared in such a composition is low toxicity to human beings while attacking the central nervous system of insects and exhibits a powerful insect repellent effect, and because it is a solidified paint, it is easy to work during painting and does not pollute the work surroundings. Moreover, since the release amount of the active ingredient is controlled, the insect repellent effect of the coating film has a long lasting advantage.

In the present invention, the release amount of the insect repellent is controlled by the titanate compound, and the active hydrogen atoms such as hydroxyl and amino groups of the insect repellent active ingredient are bound to the titanium compound, and the insecticide is gradually hydrolyzed by atmospheric moisture after coating film formation. Because.

Hereinafter, the present invention will be described in more detail by reference examples, preparation examples, examples and comparative examples.

[Impact test method]

In order to check the insect repellent effect of solid water-based insect repellent paint, paint the coated paints on the cover paper (KS 5435) once with a film thickness of 40 microns, and then cut the dried coating specimen into 6 × 15 cm size and use it as the test specimen for insect repellency. .

The prepared specimens are attached to the bottom of the insect breeding box (20 × 25 × 13cm high), 2 each, and 40 adult insects of the German wheel under test are in contact with each other. The lethality of the lethal insects was measured. The experiment was repeated three times, and the average value was assigned to the rare stones, and the median event was calculated.

In order to confirm the insect repellent of the insect repellent material in the solid water repellent paint of the present invention, in the following Reference Examples 1 to 4, only alpha-methrin as the insect repellant except tetraisopropyl titanate is 0.1 to 3.0% based on the total weight of the paint. Insect repellent paint was prepared and then the insect repellent was tested according to the insect repellent assay method.

Reference Example 1

Excluding tetraisopropyl titanate, 1.0 wt% of organophosphorus insect repellent chloropyriphos was blended as an insect repellent, and then a solid water-based paint of Table 3 was prepared. According to the insect repellency assay test method, the insect repellent effect of the dry coating film was confirmed. It was.

Reference Example 2

Except for tetraisopropyl titanate, 0.1% by weight of alphamethrin as an insect repellent was prepared, and then a solid aqueous insect repellent paint of Table 3 was prepared to determine the insect repellent effect of the dry coating according to the insect repellency assay test method.

Reference Example 3

Except for tetraisopropyl titanate, a solid water-based insect repellent paint prepared in Table 3 containing alphamethrin as an insect repellent material in an amount of 0.5% by weight was confirmed, and the insect repellent effect of the dry coating film was confirmed according to the insect repellency assay test method.

Reference Example 4

Except for tetraisopropyl titanate, 1.0 wt% of alpha-methrin as an insect repellent material was prepared, and the solid water-based insect repellent coating of Table 3 was prepared to confirm the insect repellent effect of the dry coating according to the insect repellency assay test method.

Reference Example 5

Except for tetraisopropyl titanate, alphamethrin was blended with 3.0 wt% of an insect repellent material to prepare a solid aqueous insect repellent paint of Table 3, and the insect repellent effect of the dry coating film was confirmed according to the insect repellency assay method.

According to the insecticide concentrations of the reference examples 1 to 5 as described above, the insect repellent test results of the solid water insect repellent paints are shown in Table 1 as mortality of the disclosure insects over time.

TABLE 1

Insect repellent test results by insect repellent concentration (fatality of public insects over time)

* AM: alphamethrin

CP: Chloropyriphos

In addition, the pest mortality results of Reference Examples 1 to 5 were substituted into the regression formula, and the insecticidal effects of the dry coating specimens according to the concentrations of insecticides were calculated by calculating the median (50%) and 95% mortality times. Shown in

TABLE 2

Comparison of insect repellent effect according to insect repellent concentration

* AM: alphamethrin

CP: Chloropyriphos

** LT ₅₀ : Time to kill 50% of listed pests

LT ₉₅ : Time to kill 95% of listed pests

*** +: LT ₅₀ within 24 hours

++: within LT ₅₀ 48 hours

[Production example]

[Production of Solid Water Insect Repellent Paint]

Next, to prepare an insect repellent paint with a composition as shown in Table 1, the acrylic copolymer emulsion mixed with the insect repellent material is mixed in a mill base prepared in the composition of Table 3, and after mixing all the composition of the gelling agent (Gelling Agent) Except for aging for 1 month at room temperature was carried out in the same manner as the production method of basic general aqueous paint.

TABLE 3

Composition of Solid Water Insect Repellent Paint

Example 1

A coating film specimen coated with the solid aqueous insect repellent paint shown in Table 1, in which alphamethrin was fixed at 0.5% by weight of paint and 0.1% by weight of tetraisopropyl titanate, was released for 200 hours by QUV. Treatment was carried out to confirm the insect repellent effect of the treated coating film according to the insect repellent assay method.

Example 2

A coating film specimen coated with the solid aqueous insect repellent paint of Table 1, in which alphamethrin was fixed at 0.5% by weight of paint and 1.0% by weight of tetraisopropyl titanate, was released for 200 hours by QUV. Treatment was carried out to confirm the insect repellent effect of the treated coating film according to the insect repellent assay method.

Example 3

A coating film specimen coated with the solid aqueous insect repellent paint of Table 1, in which alphamethrin was fixed at 0.5% by weight of paint and 2.0% by weight of tetraisopropyl titanate, was promoted for 200 hours by QUV. Treatment was carried out to confirm the insect repellent effect of the treated coating film according to the insect repellent assay method.

Example 4

A coating film specimen coated with the solid aqueous insect repellent paint of Table 1, in which alphamethrin was fixed at 0.5% by weight of paint and 5.0% by weight of tetraisopropyl titanate, was promoted for 200 hours by QUV. Treatment was carried out to confirm the insect repellent effect of the treated coating film according to the insect repellent assay method.

[Comparative Example]

A coating film specimen coated with the solid aqueous insect repellent paint of Table 1 without alpha tetralin fixed at a coating weight ratio of 0.5% as a releasing material and not containing tetraisopropyl titanate was subjected to accelerated weather resistance test (QUV: Quick Ultra Violet). After 200 hours of treatment was confirmed the insect repellent effect of the treated film according to the insect repellency assay method. At this time, 200 hours of QUV treatment corresponds to about one year of weather conditions.

The insecticidal efficacy sustainability test results of Examples 1 to 4, which measured the pest lethality according to the compounding amount of tetraisopropyl titanate, are shown in Table 4.

TABLE 4

Result of persistence test of insect repellent effect (mortality rate of disclosure insects by elapsed time)

* TPT: Tetraisopropyl Titanate

** Results of impact resistance test on coated film specimens treated with accelerated weathering test (QUV) for 200 hours

In order to determine the persistence of the insect repellent effect of the coating film after the QUV treatment according to the tetraisopropyl titanate paint formulations of Examples 1 to 4, the result of replacing the pest mortality with a rare formula and calculating the median mortality time and 95% mortality time The results of comparing the insect repellent persistence are shown in Table 5.

TABLE 5

Comparison of insect repellent effect after QUV 200 hours treatment

* TPT: tetraisopropyl titanate

** LT ₅₀ : Time to kill 50% of listed pests

LT ₉₅ : Time to kill 95% of listed pests

*** +: LT ₅₀ within 24 hours

++: within LT ₅₀ 48 hours

According to the above results, in the composition of the solid water insect repellent paint, the insect repellency was increased in proportion to the compounding concentration of the insect repellent material, but especially when the compounding concentration was 0.5% or more, the central mortality time was excellent within 24 hours.

However, when the compounding concentration of the insect repellent material exceeds 3.0% by weight, the compatibility with the paint component is lowered, the physical properties are lowered, the manufacturing cost is increased and there is no practical use.

Therefore, as can be seen from the result of the reference example, the compounding concentration of the insect repellent material is appropriate in the composition of the solid water insect repellent paint is 0.1% to 3.0% by weight. In addition, as can be seen from the results of Examples 1 to 4 and Comparative Examples, when the tetraisopropyl titanate is added to the composition of the solid water insect repellent paint, the release of the insect repellent material is controlled by the insect repellent effect, thereby maintaining the insect repellent effect. Indicated.

In the composition of the solid water repellent paint, the lasting effect of the insect repellent is increased in proportion to the increase of the content of tetraisopropyl titanate, but when the mixing concentration exceeds 5.0% by weight, it loses its practicality due to the remarkable deterioration and reduction of hiding power.

Therefore, in the composition of solid water insect repellent paint, when 0.1 to 5.0% by weight of tetraisopropyl titanate is mixed with 0.1 to 3.0% by weight of insect repellent paint, it is excellent in insect repellent effect, long-lasting effect and easy to paint. can do.

Claims (5)

Insect repellent coating composition, a solid water-based insect repellent coating composition comprising an acrylic copolymer as the main colorant, a pyrethroid and organophosphorus insect repellent, a insect repellent adsorbent made of a titanate compound, and a pigment and an additive. The insecticide coating composition of claim 1, wherein the amount of the insecticide is 0.1 to 3.0% by weight relative to the total coating composition. According to claim 1 or 2, wherein the insect repellent is a synthetic pyrethroid-based compound d-trans alletrin, dimethrin, tetramethrin, resmethrin, whislerate, permethrin, cipermethrin, deltamethrin Or alphamethrin, or an insect repellent coating composition characterized in that the organophosphorus compound is chloropyriphos or dichloroboss. The insecticide coating composition according to claim 1, wherein the titanate compound is used in an amount of 0.1 to 5.0% by weight based on the total paint composition. The insect repellent coating composition according to claim 1 or 4, wherein the titanate compound is tetraisopropyl titanate.