KR101893125B1 - Composition for anti-insect coating - Google Patents

Abstract

The present invention relates to an anti-insect coating composition, and more specifically, to an anti-insect coating composition which contains a styrene acrylic polymer, ammonium hydroxide, bifenthrin and a solvent. According to the present invention the anti-insect coating composition allows users to maintain a comfortable living environment by effectively preventing the access and breeding of harmful insects in the residential space for a long time.

Description

COMPOSITION FOR ANTI-INSECT COATING [0002]

The present invention relates to antifouling coating compositions, and more particularly to antifouling coating compositions comprising the pyrethroids insecticide powder bifenthrin.

Generally, a large number of pests that disgust people are distributed in a person's residential space. Among them, mosquitoes, ants, flies and ticks are not only a major obstacle in daily life, but also cause the transfer of harmful germs and viruses.

A variety of products are being developed to protect against human skin infections or diseases caused by these pest attacks. Most of these products are in the form of insecticides that spray directly on the insect pests, or in the form of repellents that spray insecticidal substances onto the subject.

However, these insecticides have not been effective for a long period of time, and have been aimed at eradicating insects which have already breed in the residential area. In addition, the above-mentioned pest repellent agent has a great deterioration effect, and thus there is a question about its practicality, and the duration of the avoidance effect after spraying and application is short, which is troublesome to be treated several times.

Accordingly, there is a need for a method for preventing the propagation of pests in a residential area, excellent effect of eliminating various insects, and maintaining the effect for a long period of time.

As an example thereof, Korean Patent Registration No. 10-0122031 proposes an insoluble cement composition obtained by blending a cement composition with a compound extracted from a plant of the family Chrysanthemum along with water. However, there is a disadvantage that the effect of combating insects is insignificant merely by compounding a substantially insecticidal compound in cement.

Korean Patent Laid-Open Publication No. 10-1996-0076516 also proposes an antifungal antifungal composition for vinyl flooring which has insecticidal and germicidal effects by allowing a certain amount of insecticidal and microbicidal components to be contained in vinyl flooring. However, this method also has a disadvantage that insecticidal and microbicidal effects are insignificant.

KR 10-0122031 B1 KR 10-1996-0076516 A

Accordingly, an object of the present invention is to provide an antimicrobial coating composition capable of preventing the propagation of pests in a residential space by blocking the entry and access of pests to the concrete floor and wall, as well as to the walls, I have to.

Another object of the present invention is to provide an antifouling coating composition which can be applied outside the residential space, that is outside the structure, to prevent the insect from approaching the structure.

Another object of the present invention is to provide an antifouling coating composition in which the avoidance effect of pests is maintained for a long time.

To achieve the above object, the antifouling composition of the present invention is characterized by comprising a styrene acrylic polymer, ammonium hydroxide, bifenthrin and a solvent.

Wherein the solvent comprises 45 to 55 wt% of the styrene-acrylic polymer, 0.1 to 0.3 wt% of ammonium hydroxide, 0.1 to 0.5 wt% of biphenyl, and the solvent is an aqueous solution of ethanol.

Wherein the extract comprises 0.1 to 3% by weight of a pest control extract, 0.1 to 3% by weight of a neem extract, and 1 to 5% by weight of diatomaceous earth. The pest control extract and the nematode extract are extracted with an ethanol, methanol, ethanol aqueous solution or methanol aqueous solution .

Wherein the spider starfish extract and the bank exocellular extract comprise 0.1 to 3% by weight of a spider starfish extract, 0.1 to 3% by weight of a bank exocellular extract, and 0.1 to 1% by weight of a plant essential oil. And the like.

According to the present invention, it is advantageous that a comfortable living environment can be maintained by effectively preventing prolonged access and propagation of insects such as mosquitoes and house dust mites in a residential space.

Hereinafter, the present invention will be described in detail.

The antifouling coating composition according to the present invention is coated on concrete wall, ceiling, bottom surface, as well as on wood, synthetic wood, wallpaper and the like that constitute a residential space to prevent invasion or propagation of insects in the residential space. And is characterized in that it comprises a phenylacrylic polymer, an ammonium hydroxide, bifenthrin and a solvent.

First, the styrene-acrylic polymer is a component that provides transparency, adhesion, and the like so that the coating composition can be coated on the object to be coated. The styrene-acrylic polymer is preferably contained in the composition in an amount of 45 to 55% by weight. When the content is less than 45% by weight, the adhesive strength is lowered and the overall physical properties of the coating film are deteriorated. I can not.

The ammonium hydroxide is a component used for the stability of the coating composition, and is preferably contained in an amount of 0.1 to 0.3% by weight in the composition. If the content of ammonium hydroxide is less than 0.1% by weight, the effect is insignificant. If the content is more than 0.3% by weight, storage stability is deteriorated.

The bifenthrin is pyrethroids insecticide powder and has the property of being decomposed by air, sunlight and heat, so that it does not cause environmental pollution and has an advantage of being excellent in the sustained effect of the pharmacological effect. The bipnets are capable of paralyzing the nerves of nervous system insects such as flies, mosquitoes, mites, ants, bees and spiders, thereby causing continuous potassium-sodium exchange through the cell membrane, resulting in fatal damage to insects, It is medicine. That is, the bifenthrin has insecticidal and repellent effects on nervous system insects. The bifenthrin may be in the form of powder, and it is sufficient to use a material having a particle size of 400 to 600 mesh. The biphenes are preferably used in an amount of 0.1 to 0.5% by weight in the composition. If the content is less than 0.1% by weight, the effect is insignificant, and even if the content is more than 0.5% by weight, no further enhanced action effect is exhibited.

In addition, the antifouling coating composition according to the present invention further comprises a solvent. As the solvent, a mixed solvent of one or more of water, ethanol and methanol may be used, but an ethanol aqueous solution is most preferably used. The solvent is included as a balance in the composition.

The antistatic coating composition of the present invention as described above is advantageous in that it avoids various insects such as mosquitoes, house dust mites, ants and flies, and maintains its effect for a long period of time.

Meanwhile, the anti-snuff coating composition according to the present invention may further contain 0.1 to 3% by weight of a pest control extract, 0.1 to 3% by weight of a neem extract, and 1 to 5% by weight of diatomaceous earth.

The extract of pyrethrum contains a large amount of pyrethrins. The pyrethrins are highly toxic to insects and can be used as environmentally friendly insecticides that paralyze motor neurons but are not toxic to warm-blooded animals. The insecticidal effect is insignificant when the content is less than 0.1% by weight, and the physical properties of the coating composition are poor when the content is more than 3% by weight.

The extract of neem contains azadirachtin, a sterilizing and detoxifying ingredient, and can be used as a powerful environmentally friendly insecticide. If the content of the nimble extract is less than 0.1 wt%, insecticidal effect is insufficient, and if the content is more than 3 wt%, the overall physical properties of the coating composition may become poor.

Here, the method of extracting the bugs and the like is not limited, but it suffices to follow the various known methods of extracting plant extracts. However, in order to maximize the insecticidal effect, it is preferable to use at least one solvent selected from the group consisting of water, ethanol and methanol, more preferably ethanol, methanol, aqueous ethanol solution or aqueous methanol solution. Also, the insecticidal effect is most excellent when the bug bug bug uses flowers, and the bug bug uses ni berries.

Illustratively, the pest control extract is obtained by pulverizing flowers of a pest control station, pulverizing the pest control flower, adding 2 to 10 times of 70 to 95% aqueous ethanol solution, extracting at 20 to 40 ° C for 5 to 30 hours, . The nematode extract is prepared by drying and pulverizing Nematode fruit, adding 2 to 10 times 70 to 95% aqueous ethanol solution, extracting at 20 to 40 ° C for 5 to 30 hours, filtering, concentrating and drying .

The diatomaceous earth is a non-toxic natural material having deodorization, dehydration and adsorption effect, and controls pests in a physical form to give an insecticidal effect. In the present invention, the diatomaceous earth may be in the form of a powder having a particle size of 400 to 600 mesh, or may be a liquid diatomaceous earth, but is not limited thereto. The diatomaceous earth is preferably used in an amount of 1 to 5 wt% in the composition. If the content of the diatomite is less than 1 wt%, insecticidal effect is insignificant, and if it exceeds 5 wt%, the overall physical properties of the coating composition become poor.

In addition, the antistatic coating composition according to the present invention may further comprise 0.1-3% by weight of the spider starfish extract, 0.1-3% by weight of the bank exotropia extract, and 0.1-1% by weight of plant essential oil.

The spider starfish extract is excellent in repelling activity of insects, especially mosquitoes. The spider starfish extract is obtained by extracting spider starfish with one or more of water, ethanol and methanol, more preferably ethanol, methanol, aqueous ethanol solution or aqueous methanol solution ≪ / RTI > More specifically, 1 to 10 times by weight of a solvent is added to a spider starfish and extracted at 20 to 40 DEG C for 5 to 36 hours, followed by filtration, concentration and drying. The spider starfish extract is preferably contained in an amount of 0.1 to 3% by weight in the composition, considering its effect.

The exocellular extract of the bank is also excellent in the insecticidal effect of mosquitoes, flies and ticks. The extract of the bank exocellular bodys is obtained by dissolving the bank exocytosis in at least one solvent selected from water, ethanol and methanol, more preferably ethanol, methanol, . ≪ / RTI > More specifically, 1 to 10 times by weight of a solvent is added to the outer layer of the bank, followed by extraction at 20 to 40 ° C for 5 to 36 hours, followed by concentration and drying. The exocytic extract of the bank is preferably contained in an amount of 0.1 to 3% by weight in the composition, considering its effect.

The vegetable essential oil is intended to further enhance the effect of insect pest control. Examples of the plant essential oil include one or two selected from the group consisting of safflower oil, lemongrass oil, oregano oil, eucalyptus oil, clove oil and cinnamon oil More than two species can be used.

 The above-mentioned oils are oils having antimicrobial activity and antimicrobial activity. It is known that the plant essential oil and its active ingredient (antimicrobial, active ingredient) denature the cell membrane and protein of disease causative agent to exhibit antimicrobial activity. In addition, the plant essential oil acts as a defector of insects and odor removal by the directional effect of the ingredient itself. The active ingredients of the plant essential oil include thymol, cinnamon oil present in sesame seed oil, yugenol present in clove oil, carbacol present in oregano, and the like. The vegetable essential oil is preferably contained in an amount of 0.1 to 1% by weight in the composition, considering its effect.

In addition, the antistatic coating composition according to the present invention may further comprise 0.1 to 3% by weight of the persimmon shell extract.

The persimmon shell extract is also excellent in the avoidance effect of mosquitoes, flies and mites. The above-mentioned persimmon shell extract is obtained by extracting the persimmon shell with one or more of water, ethanol and methanol, ethanol, methanol, aqueous ethanol solution or aqueous methanol solution . More specifically, 1 to 10 times by weight of a solvent is added to the sweet peel shell, and the mixture is extracted at 20 to 40 DEG C for 5 to 36 hours, filtered, concentrated and dried. The sweet perspex skin extract is preferably contained in an amount of 0.1 to 3% by weight in the composition, considering its effect.

The antifouling coating composition according to the present invention may further contain antifoaming agents such as octyl alcohol, glycol derivatives, polyoxyethylene and alkylphenyl ether; Retarding agents such as sugars, alcohols, surface active agents and inorganic acids; And the like, but the practice thereof is not limited.

The anti-snuff coating composition of the present invention having the above-described structure has an advantage that the avoidance and repelling effects of insects are maintained for a long period of time.

Meanwhile, although the anti-static coating composition of the present invention is described as being coated on concrete, wood, and wallpaper, it is obvious that the anti-static coating composition can be coated on various materials such as interior, exterior materials, furniture, and so on. I will reveal.

The coating thickness is also not limited.

Hereinafter, the present invention will be described in detail with reference to specific examples.

(Example 1)

, 0.1% by weight of ammonium hydroxide (CAS No. 1336-21-6), 0.3% by weight of bifenthrin (CAS No. 82657-04-3), and 50% by weight of styrene-acrylic acid copolymer Of a 30% aqueous solution of ethanol was prepared.

To prepare the composition, biphenyl (500mesh) was added to the aqueous ethanol solution to dissolve the polymer sufficiently. Then, ammonium hydroxide and styrene acrylic polymer were added thereto, and the mixture was stirred at 1,900 rpm for 1 hour.

(Example 2)

2% by weight of the insect repellent extract, 2% by weight of the nematic extract and 2% by weight of diatomaceous earth (400mesh) were further added and stirred while the ammonium hydroxide and the styrene acrylic polymer were added.

At this time, the bug bug extract was dried and pulverized in a dry oven at 50 ° C. for 1 day. Then, 500 g of 90% ethanol was added to 100 g of the above pulverized product, extracted at 25 ° C. for 20 hours, , Filtered, concentrated under reduced pressure at 45 ° C using a rotary evaporator, and lyophilized. Then, it was pulverized to have a particle size of 400 mesh.

The nymph extract was dried in a dry oven at 50 ° C. for 1 day and pulverized. Then, 500 g of 90% ethanol was added to 100 g of the pulverized product, extracted at 25 ° C. for 20 hours, filtered using Wattmann filter paper , And concentrated under reduced pressure at 45 ° C using a rotary evaporator and lyophilized. Then, it was pulverized to have a particle size of 400 mesh.

(Example 3)

2% by weight of spider starfish extract, 2% by weight of bank exotropia extract and 0.5% by weight of plant essential oil were further added and stirred while the ammonium hydroxide and styrene acrylic polymer were added.

At this time, the spider starfish extract was prepared by drying the spider starfish in a dry oven at 50 DEG C for 4 days, pulverizing, adding 500 g of 70% ethanol to 100 g of the pulverized product, extracting at 25 DEG C for 20 hours, , Filtered, concentrated under reduced pressure at 45 ° C using a rotary evaporator, and lyophilized. Then, it was pulverized to have a particle size of 400 mesh.

The bank exocellular extract was dried in a dry oven at 50 ° C. for 4 days and pulverized. Then, 500 g of 70% ethanol was added to 100 g of the pulverized product, extracted at 25 ° C. for 20 hours, Filtered, concentrated under reduced pressure at 45 ° C using a rotary evaporator, and lyophilized. Then, it was pulverized to have a particle size of 400 mesh.

As plant essential oil, sesame seed oil was used.

(Example 4)

The same procedure as in Example 3 was carried out except that 2 wt% of the sweet persimmon shell extract was added to the aqueous ammonium hydroxide and styrene acrylic polymer, and the mixture was stirred.

At that time, the persimmon shell extract was dried in a dry oven at 50 ° C for 1 day and pulverized. Then, 500 g of 70% ethanol was added to 100 g of the pulverized product, extracted at 25 ° C for 20 hours, , Filtered, concentrated under reduced pressure at 45 ° C using a rotary evaporator, and lyophilized. Then, it was pulverized to have a particle size of 400 mesh.

(Test Example 1)

Five sheets of 30 cm x 30 cm hardboards were prepared, and each of the compositions of Examples 1 to 4 was applied on a hard board paper in an appropriate amount so that the base surface was not seen, and it was dried at room temperature for 2 hours. The other one was used as a control.

Next, the hard board paper (to expose the coated surface) was mounted on one side of a chamber of 50 cm x 50 cm x 50 cm. Fifty mosquitoes were put into the chamber, and carbon dioxide was introduced into the chamber at a rate of 150 mL / min to cause the mosquito to be attracted to the surface to which the hard board was attached. The mosquito species used in the experiment are adults of Aedes albopictus.

The observation period of avoidance behavior of mosquitoes was 1 hour, and the number of mosquitoes sitting on the hard board was checked every 15 minutes from the time when the first mosquito was introduced, and added.

The avoidance rate (%) was calculated according to the following equation (1), and the results are shown in Table 1 below.

[Equation 1]

Avoidance rate (%) = {(total number of mosquitoes - number of mosquitoes sitting on hard board) / number of total mosquitoes} × 100

Test Example 1 Results division Example 1 Example 2 Example 3 Example 4 Control group Avoidance rate (%) 90 94 96 100 26

As can be seen from the above Table 1, Examples 1 to 4 according to the present invention confirm that the avoidance effect of the mosquito is excellent.

(Test Example 2)

Five circular hard hardboards each having a diameter of 3.5 cm were prepared, and the compositions of Examples 1 to 4 were applied on respective hardboard paper so that the ground surface was not seen, and they were dried at room temperature for 2 hours. The other one was used as a control.

Next, a hard board paper coated with any one of the above Examples 1 to 4 was placed on the bottom of a plastic circular dish (3.5 cm in diameter, 1 cm in height), and 0.05 g of the attractant was placed thereon to prepare a test sample. Control samples were prepared in the same manner using the control.

Then, the test sample was placed in the middle of a plastic circular plate (diameter 9 cm, height 1.5 cm), and a void-filling medium was uniformly spread inside the plastic circular dish (diameter 9 cm, height 1.5 cm) At that time, the density of the open pod media was 30,000 grains / g or more, and the used pods were dermatophagoides farina.

The plastic circular dish (9 cm in diameter, 1.5 cm in height) was placed in a thermostat (25 ± 2 ° C.), kept in a rocky state for 24 hours, and the number of openings buried in the test sample was observed under a microscope. The control samples were also sampled by the same method.

Next, the avoidance rate was calculated by the following formula (2), and the results are shown in Table 2 below.

&Quot; (2) "

Avoidance rate (%) = {(number of invaded control samples - number of invaded test samples) / number of invaded control samples} x 100

Test Example 2 Results division Example 1 Example 2 Example 3 Example 4 Avoidance rate (%) 86 92 94 97

As can be seen from the above Table 2, Examples 1 to 4 according to the present invention can confirm that the avoidance effect of the house dust mite is excellent.

(Example 3)

For the avoidance effect duration, Test Examples 1 and 2 were repeated at intervals of 30 days. The results are shown in Tables 3 and 4 below.

The results of Test Example 3 (Mosquito) division Avoidance rate (%) 30 days 60 days 90 days 120 days 150 days Example 1 91 91 90 88 95 Example 2 94 94 93 90 88 Example 3 95 95 94 91 90 Example 4 97 100 95 94 93

Results of Test Example 3 (house dust mite) division Avoidance rate (%) 30 days 60 days 90 days 120 days 150 days Example 1 85 82 80 79 75 Example 2 93 91 90 87 85 Example 3 94 94 91 91 88 Example 4 96 97 95 92 90

As can be seen from Tables 3 and 4, the coating composition according to the present invention can be confirmed to have a repelling effect of more than 150 days. Also, it was judged that it would maintain sufficient repelling effect for several months after 150 days.

(Test Example 4)

Four circular hard hardboards each having a diameter of 3.5 cm were prepared, and the compositions of Examples 2 to 4 were applied on each hard board paper in an appropriate amount so that the ground surface could not be seen, and they were dried at room temperature for 2 hours. The other one was used as a control.

Staphylococcus aureus and Escherichia coli were inoculated on each hardboard and incubated for 18 hours. The number of viable cells was measured. At this time, the number of viable cells in the initial inoculation of the test group and the control group was the same, and the culture conditions were the same.

The results are shown in Table 5 below.

Results of Test Example 4 Test Species Staphylococcus aureus Escherichia coli Number of live inoculated live bacteria 1.1 × 10 ⁵ 1.1 × 10 ⁵ After 18 hours of culture in the control group, 5.5 × 10 ⁶ 2.7 × 10 ⁷ After 18 hours of cultivation in Example 2, 1.3 x 10 ² 2.9 x 10 ³ Bacterial reduction rate (%) of Example 2 99.9 99.9 After 18 hours of cultivation in Example 3, 1.1 × 10 ² 1.2 × 10 ³ Bacterial reduction rate (%) of Example 3 99.9 99.9 After 18 hours of cultivation in Example 4, 1.0 × 10 ² 5.9 × 10 ² Bacterial reduction rate (%) of Example 4 99.9 99.9

As can be seen in Table 5, it was confirmed that the composition of the present invention was also excellent in antibacterial activity.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. It is not. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

Claims (4)

delete delete Styrene acrylic polymer, ammonium hydroxide, bifenthrin and a solvent,
45 to 55% by weight of the styrene-acrylic polymer, 0.1 to 0.3% by weight of ammonium hydroxide, 0.1 to 0.5% by weight of biphenyl, and a residual amount of a solvent,
Wherein the solvent is an aqueous solution of ethanol,
0.1 to 3% by weight of a pest control extract, 0.1 to 3% by weight of a neem extract and 1 to 5% by weight of diatomaceous earth,
Wherein the insect repellent extract and the nimex extract are extracted using ethanol, methanol, aqueous ethanol solution or methanol aqueous solution.
Styrene acrylic polymer, ammonium hydroxide, bifenthrin and a solvent,
45 to 55% by weight of the styrene-acrylic polymer, 0.1 to 0.3% by weight of ammonium hydroxide, 0.1 to 0.5% by weight of biphenyl, and a residual amount of a solvent,
Wherein the solvent is an aqueous solution of ethanol,
0.1 to 3% by weight of a spider starfish extract, 0.1 to 3% by weight of a bank exotropia extract, and 0.1 to 1% by weight of a plant essential oil,
Wherein the spider starfish extract and the bank exocellular extract are extracted using ethanol, methanol, aqueous ethanol solution or methanol aqueous solution.