JPS62135576A - Rodent repellent paint - Google Patents

Abstract

PURPOSE:To obtain a rodent repellent paint capable of stably maintaining the effect for a long period of time, by blending a paint with microcapsule of cycloheximide covered with a wall material. CONSTITUTION:About 0.25-50wt% cycloheximide (a) is dissolved in an org. solvent (e.g., dimethyl phthalate) which is inert to the component a and can be dissolved in the component a to an appropriate extent, thereby forming a core. The core is covered with a wall material (b) (e.g., polyamide) to obtain microcapsules. A paint (A) (e.g., phenolic resin varnish) is mixed with the component B and, if necessary, a plasticizer, drying agent, anti-skinning agent, levelling agent, anti-sag agent, etc., thereby obtaining a rodent repellent paint. The paint is applied onto a wire cable, flexible container, paper bag, wall cloth, etc., in an amt. of about 0.05-2.0g/m<2> in terms of the component a.

Description

[Detailed description of the invention]

(a) Industrial Application Field The present invention relates to rat-proof paint. (b) Conventional technology 4. There are said to be 300 million animals, three times the number of people, and the damage caused is said to be more than 1,000 Ia per year. However, despite the seriousness and scale of the damage caused by this fungus, the measures to exterminate it have been difficult to implement and have been mycorrhizal. If you look at the history of the main extermination methods, it starts with yellow phosphorus-poisoned dumplings (which are also poisonous to pets) in the 1940s, and then in the 4th year of the Showa era.
The rodenticide warfarin was introduced in the 2000s and had great effects. However, the living body always becomes immune to these drugs. Currently, some black rats are surviving for more than 100 days on poisoned food containing warfarin. In the 1950s, adhesive rat-proofing devices and ultrasonic rat-proofing devices were developed, but they were not sufficiently effective. The main types of rodent damage include damage to paper or cloth bags for rice and wheat grains related to packaging materials, damage to cardboard cases for packaging various foods, and damage to flexible containers made of PVC or rubber. The damage is significant and has become a problem. Furthermore, computers and related communications and
Electricity/optical communication cables, signal cables, other electric wires, cables, etc. due to electric leakage fires, machinery down or abnormal operation, nesting or urinating inside artificial machines, etc. due to rat ingestion,
Wire breakage due to excrement, poor contact, partial molecular rA corrosion, etc. occur, and it is currently difficult to detect defective locations due to poor contact and corrosion. As has been frequently reported in newspapers and magazines in recent years,
Household L I) Gas pipes were eaten and torn by rats, resulting in explosions resulting from gas leaks that resulted in casualties and increased demand for easy rat-proof secondary processing for various processed products. There is. Rodent-proofing methods for various molded products such as electric wires, cables, hoses, pipes, tubes, tapes, and sheets include resin layers (used as protective and insulating layers for these molded products).
For example, a method of kneading a rat repellent into a cable sheath is widely used, and such a rat repellent is, for example, cycloheximide (hereinafter abbreviated as CHI) shown by the following structural formula.
It has been known. However, cycloheximide is water resistant due to its nature.
There are difficulties in various chemical resistance and handling safety, and CHI itself is expensive, so is it possible to easily and economically obtain a rat-proof processed product? -ki/T was. (c) Problems to be Solved by the Invention In rat-proof paints in which CHI is directly added, dispersed, or kneaded into various paints, CHI may be decomposed by the main film-forming elements, other sub-components forming the film, or pigments. There are many cases where this happens. Furthermore, even if CHI can be successfully added to paints, depending on the type of CHI, it may be decomposed during the heating process during paint film formation, or deactivated due to chemical reactions, so taking into consideration the loss in advance, it may be necessary to add a large amount of CHI. do. Furthermore, it was observed that CHI bleeds from the coating resin layer, falls off, or is absorbed by the rat-proofing object, and the concentration drops below the level at which CHI exhibits its rat-proofing effect. Furthermore, since C)-1f does not have water resistance, when used outdoors, CHI is eluted, and 1!7 is not fully satisfactory both over time and economically. (d) Means and action for solving the problems In order to solve the problems, the present inventors have conducted extensive research and found that C.
We have discovered that when HI is microencapsulated and incorporated into a paint, the paint exhibits a strong rodent-repellent effect over a long period of time, and that CHI is stable even when subjected to various treatments, and has developed the present invention. It has been completed. That is, in the present invention, cycloheximide is added to the microcapsules in an amount of about 0.25 to 50 W/W%, preferably about 0.5 to 50 W/W%.
3014/%#%, more preferably about 2 to 2014/%
This is a rat-proofing paint that contains microcapsules in which a core material is a solution containing 50% chlorine, and a wall material covers the core material. In the rodent-proof paint of the present invention, the paint containing CH1 microcapsules is not particularly limited. For example, when classified by raw materials, there are oil-based paints, alcoholic paints, cellulose paints, synthetic resin paints, water-based paints, ring-based paints, and rubber-based paints.Oil-based paints include boiled oil, oil paint, oil varnish, For enamel and alcoholic paints, natural resin varnish, synthetic resin varnish, for cellulose paint, clear lacquer, lacquer enamel, for synthetic resin paint, water-based paint varnish, synthetic resin enamel, emulsion polymerization paint, for water-based paint, water-based paint, emulsion oil. Paints, emulsion polymer paints, and ring-based paints include lacquer and cashew varnish; rubber-based materials include chlorinated rubber paints, cyclized rubber paints, and synthetic rubber paints such as SBR Kasa. Among these, synthetic resin varnishes can be mentioned in particular.
These include phenolic resin varnish, phthalic acid resin varnish, maleic acid resin varnish, 1M resin varnish, melamine resin varnish, vinyl resin varnish, epoxy resin varnish,
There are silicone resin varnishes, furan resin varnishes, and polyester resin varnishes. Among these, vinyl resin varnishes are particularly useful, and include vinyl acetate resin varnishes, vinyl chloride vinyl acetate copolymer varnishes, styrene resin varnishes, acrylic acid resin varnishes, polyvinyl butyral varnishes, and the like. In practical use, these paints contain plasticizers, desiccants, curing agents, dispersants, anti-scaling agents, thickeners, leveling agents, anti-sag agents, and anti-fungal agents as IIIQ forming subelements. , an ultraviolet absorber or a pigment may be mixed or added. The rodent-proof paint containing CHI microcapsules by mixing and dispersing C)-II microcapsules in each ill can be used as it is, such as PVC sheets used for communication, signal, power, electric wire cable coatings, flexible containers, etc. It can be applied to paper bags, wall cloths, or architectural interior materials to be used as rat-proof cables, rat-proof flexible containers, rat-proof paper bags, rat-proof cloth, or rat-proof interior materials, respectively. The CHI microcapsules used in the present invention are not particularly limited as long as they are microcapsules containing a CHI solution dissolved in a suitable solvent.
It is dissolved in an organic solvent that is inert to I and has an appropriate solubility, and can be used for interfacial polymerization, in-5-itu method, coacervation method, in-liquid curing coating method (orifice method), in-liquid drying method, spraying/forming. Use methods such as the grain method! 1! Microcapsules formed with a membrane are preferred. Examples of such organic solvents include alcohols such as methyl alcohol, ethyl alcohol, propyl alcohol, and butyl alcohol; ketones such as acetone, methyl alcohol ketone (MEK), methyl isobutyl ketone (MIBK), ethyl butyl ketone, and cyclohexanone; and ethyl ether. , butyl ether, amyl ether, hexyl ether, ethyl vinyl ether, cellosolve, calpitol and other ethers;
hexane, heptane, octane, benzene, toluene,
Aliphatic and aromatic hydrocarbons such as xylene and cyclohexane: Mineral oils such as kerosene, light oil, and paraffin oil: Acetate ester,
Propionate ester, butyrate ester, lactic acid ester,
Esters such as oxalic acid ester, crotonic acid ester, salicylic acid ester, benzoic acid ester, phthalic acid ester, adipic acid ester, sebacic acid ester, and phosphoric acid ester; low molecular weight epoxy resins, and the like. Furthermore, if the solvent is required to have a high boiling point, non-volatility, hydrophobicity, etc. due to the strength stability of CHI during the capsule production process or the usage form of CI-II-containing capsules, the above-mentioned Ester or low molecular weight epoxy resin may be used as the solvent. In this case, the esters include dimethyl phthalate, diethyl phthalate, dibutyl phthalate, dihebdyl phthalate, dioquidyl phthalate, diisodecyl phthalate, butylbenzyl phthalate, dimethyl isophthalate, and di-2-ethyl phthalate.
Ruhegicil, ditridecyl phthalate, di-normal alkyl phthalate, etc.; Nisdel adipate such as schitubudel adipate, di-Actyl adipate; sebacic acid esters such as dibenzyl sebacate, diocubur sebacate; 1-riphenyl phosphate, tricresyl phosphate The phosphoric acid ester is preferably selected from phosphoric acid esters such as , triokdyl phosphate, and ocbrudifyl phosphate. Further, as a low molecular weight epoxy resin, an epoxy resin with a molecular lance of 400 or less is preferable, and examples of such epoxy resin include "Epicoat 815°816, 81
There are epoxy resins such as 8J (trade name; manufactured by Shell Chemical Co., Ltd.). The content m of C)-II in each of the above VJWJ agents is suitably about 0.25 to 50%, preferably about 0.5 to 3014%, based on the microcapsules. ,
From the viewpoint of economy and effectiveness, about 2 to 20-7% is preferred. On the other hand, the capsule wall that microencapsulates the CHI solution is made of a polymeric material formed using a reactive material such as a monomer or a low molecular weight prepolymer, and
Resins such as urea resins, melamine resins, urea/melamine mixed resins, phenol resins, polyamides, polyesters, voluria, and polyurethane are suitable from the viewpoint of not losing the medicinal efficacy of H(H). Such wall materials are used in the form of encapsulated preparations. It is adopted as appropriate in view of the various conditions, economic efficiency, etc. at the time.As a method for applying the anti-male paint to the object to be anti-mouse-proof and obtain a mouse-proof finished product, a commonly used coating method may be used.
For example, the coating may be applied by applying printing techniques such as brush coating, spray coating, electrostatic coating, electrodeposition, or screen printing, or by applying various coating machines such as a blade coater, gravure coater, and air knife coater. In these rat-proof paints, the amount of CHI applied is approximately 0.
05 to 2.0 g/TIt, preferably about 0.10 to 0.797, more preferably about 0.2
It is sufficient to apply ~0.59/go, and the economical efficiency of the paint (coating m
), CHI content of CHI microcapsules and CH when added or dispersed to paint, taking into account the function of the paint film.
What is necessary is to determine the I microcapsule content. (e) Examples The present invention will be explained in more detail with reference to Examples and Experimental Examples. Note that the CHI microcapsules used in the Examples were prepared according to Reference Examples. 1'' Ll 12 g of CHI (trade name: Naramycin, manufactured by Tanabe + I!A Pharmaceutical Co., Ltd.) and 13 g of terephthalic acid chloride are dissolved in 120 g of dimethyl phthalate to obtain a solution A. Emulsify solution A in 300 g of 2% PVA (polyvinyl alcohol) aqueous solution,
Prepare a 0/W1 marsion. On the other hand, prepare Solution B by dissolving 1 helium carbonate, 4 g, and 8 parts diethylenetriamine in 80 parts water. While stirring the 0/W emulsion, Solution B was slowly added, and the stirring reaction was continued for 24 hours to obtain 8% CHI-containing microcapsules having polyamide walls. In the same manner, 15% and 1.5% CHI-containing microcapsules were obtained. Example 1 Toluene paint for processing PVC tarpaulin sheets for flexible containers 35 35 35*VC:
AC=15:85. P; A rat-proofing paint with the formulation of Example 1 was applied to one side of a tarpaulin for a flexible container, which was calendered to a thickness of 1#1I11 with a polyvinyl chloride composition having the following formulation and a 420 polyester base fabric as the interlining, while stirring. 13g per meter of tarpaulin sheet area
was gravure coated and dried at 80°C for 2 minutes to obtain a tarpaulin for rat-proof flexible containers. Vinyl chloride composition Polyvinyl chloride (average degree of polymerization 1,450) 100 hanging parts Dioctyl phthalate 25 Dibutyl phthalate 2 o Chlorinated paraffin 1 o Basic lead carbonate 5 ? ? Lead stearate 1 Experimental example 1 (1) CHI on anti-GPVC flexible container boron
Method for determining storage stability> The same formulation as in Example 1, excluding CI-II microcapsules (Comparative Example 1), and CHINOKU containing 2% CHI crystals instead of CHI microcapsules. Control example 2), containing 3% of the same CHI crystals (control example 3)
For each, a rat-proof coating was applied in the same manner as in Example 1. About anti-gpvc tarpaulin, 5
The storage stability on PvC tarpaulin was investigated under conditions of 0° C. and 85% relative humidity. Results> The results are shown in Table 1. Table 1 *μ9/cA CHI provisional measurement method: Add 10 Irr1 of acetone to 1 g of rodent-proofed turbolin, leave it at room temperature for 24 hours, then add 10 ml of methanol, heat it to 70°C, leave it for 1 hour, and use the liquid as a sample. Measured in accordance with the official pesticide testing method (preparations containing CHI as the main ingredient) (the same applies below). (2) Method for achieving the rat-repelling effect of PVC FIBC Tarpaulin> The tarpaulin obtained in (1) above was heated at 75X 150 mIR.
Wrap two pieces of solid food for rats with it, and staple around the edges to use it as a sample. This sample was applied to 3 Wistar rats with a body fi' of around 500 g that had been fasted for 24 hours.
After placing the animals in a breeding cage containing the animal for one night, they were taken out and the state of feeding damage was examined. Five breeding cages were used. <Results> The results are shown in Table 2 below. Table 2 *μ9/cM (3) Method of transferring CI-II to PVC flexible container tarboline> Use the tarpaulin sheet obtained in (1) above! I! , IJ in the lagoon
After placing the tarpaulin in the tarpaulin body, the CH[,d] transferred to the tarpaulin body was measured. Results> The results were as shown in Table 3 below. Table 3 +: 0.5μg/rd or less as Cl-11==;CH
I and less than 1.0μg/rIt1;μ'J/cm c+-+rProvisional measurement method: After avoiding contact of the specimen with the surface of the medium containing the test bacterium Saccharomyces cerevisiae for 5 minutes, the sample was incubated at 32°C. From the area of inhibition zone generated on the surface of the medium after 16 hours of culture, Cl-llff
I asked for 1. (4) Water resistance of Cl-4I of rat-proof PVC flexible container tarpaulin sheet <Method> 19 from each tarpaulin in (1) above 100X 100
Take a sample, cut it into 4 pieces, put it in a 200mm beaker, add 100mm of water, and add 30ml of water.
℃. The immersion water was placed in a constant temperature water bath at 50° C., and 5 d of immersion water was collected over time, and CHiffl eluted into the water was measured. CHI ffl on the tarpaulin sheet was in accordance with (1) above. Results> The results are shown in Table 4 below. Table 4 = I = μ9/ctd Example 2 PvC coated cable outdoor ratproof coating Fl Vinyl chloride/vinyl acetate/maleic acid copolymer resin: IE = 2 2 2 Acrylic acid ester resin 11 11
11 Ethyl acetate 8 8 8 Butyl acetate 8 8 8 Methyl edyl ketone 33
33 331.5% CHI microcapsule
15.3 -:1=VC:VA
C=87: 13. P: 4201 Kawani VC:V
AC:MA=86:13:1. P, 420 cable lines number 7
, three control cables each coated with an insulating layer made of a polyvinyl chloride composition to a thickness of i, o are placed on four cables each having an outer diameter of 3.55 mm, and then A rat-proofing paint made from the formulation of Example 2 was applied to the surface of the cable coated with a protective layer of polyvinyl chloride made from the recipe shown in Table 1.
Apply with hand spray (4 coats i) to give 150g per riITIt, and prevent Tht P V Cl!
I got a covered cable. Polyvinyl chloride (P: 300) 100 parts Dioctyl phthalate 501 parts Organic tin mercapto compound 5 Lead stearate
l n Experimental example 2 (1) On a 54-proof PVC coated cable

[Storage stability of Puru CHI <Method> Same formulation as Example 2, excluding CHI microcapsules (Control Example 1), 1.5% CHI instead of 8% CI-II microcapsules Prevention was carried out in the same manner as in Example 2 for a product containing 13.4% microcapsules (Control Example 2) and a product containing 0.2% CHI crystals in place of 8% CHI microcapsules (Control Example 3). PV of 1PVC coated cable obtained by mouse coating under conditions of 50℃ and relative humidity of 85%
The storage stability of CHI on C-coated cable was investigated. Results> The results are shown in Table 5 below. Table 5 Table 2 F, μU/ctA C1 (1 measurement method: according to (1) of Experimental Example 1. (2) CI-II on J3 on rat-proof PVC coated cable
Water resistance <Method> Cut each 1 watt PVC coated cable in step (1) above into 30mm pieces, place them in a 200i beaker, add 100mm of water, and place in a constant temperature water bath at 30°C and 50°C for aging. 5 m of immersion water was sampled, and Cl-llff1 eluted into the water was measured. The remaining CHI m on the PvC cable is the above (1
). <Results> The results are shown in Table 6 below. Table 6 (3) Method for making rat-repellent effect of anti-IPVC coated cable> Cut each couple obtained in (1) above into 200 mm pieces.
It was used as a sample. This sample was taken from two black rats weighing approximately 400
Place the animal in a breeding cage with feed and drinking water,
It was installed for 2 days, taken out every 24 hours, and the exposure rate of the core wire was measured in vA. Five breeding cages were used and the average was calculated. Results> The results are as shown in Table 7 below. Table 7 Example 3 General spray rodent repellent paint 2 I: P: 200-300 Experimental example 3 (1) 1 azole spray coating t'1 on glass surface
Method for determining the stability of C11l in the coating: Same formulation as in Example 3, except for CHI microcapsules (Control example 1), 8% CHI microcaps + 2) and 1.5% instead of CHI microcapsules. Contains 13.4% Cl41 microcapsules (Control Example 2), 8% CHI
Regarding Chinoku control example 3) containing 0.2% CHI crystals instead of microcapsules, each was placed on a 1T glass plate.
After coating at a weight of 150 g per d and drying at room temperature, the storage stability of C)-11 in each coating film on a glass plate was examined under conditions of 50° C. and 85% relative humidity. <Results> The results are shown in Table 8. Table 8 (2) Rat repellent effect of aerosol spray coating applied to wood chips (Method) Each aerosol spray coating used in (1) above was applied to 3×3
The surface of the wood (138 cff
The sample is prepared by applying approximately 2.19% of the sample to l) and drying at room temperature. This sample was placed in a breeding cage containing three Wistar rats weighing around 400 g, fed with food and drinking water, and left for 72 hours. The sample was taken out every 24 hours to measure the rate of nail reduction due to feeding damage. did. Five breeding cages were used and the average was calculated. <Results> The results are shown in Table 9 below. Table 9* 24If, weight for initial tpl unit amount per 'j period! 6 Reduction rate example 4 PVC coated cable indoor protection YG l Vil example 4 S・J comparison example 1 control example 2 acrylic acid/methacrylic acid ester copolymer resin* 5 5 51.1.1-t
-Lichloroethane 88.7 95
94.58% CHI Microcapsule t3.3
-CI-11 crystal
0,50HI including ffi, (%)
0.50 Q O,! i*1
': 700, M: 75.000 On the surface of the PVC coated cable used in Example 2, a rodent-proofing paint made from the formulation of Example 4 was applied at a rate of 8 J per end of the cable surface while stirring.
J, sea urchin soaked) ^ After treatment (soaked twice), 80℃
It was infrared dried for 2 minutes and removed from the APVC coated cable. Experimental Example 4 (1) Rat repellent test on rat-proof PVCM covered cable <Method> Same formulation as in Example 4, except for CHI microcapsules (Control Example 1), 8% CI-II Microcab Hill 05% CI-If crystals instead (Comparative Example 2) were treated in the same manner as in Example VIi4, with the addition of rat-proof coating 1. pvc′flJ obtained by
Regarding the m cable, each cable was cut into 200M and used as a sample. This sample was placed in a breeding cage containing one brown rat in body car 5003 along with feed and drinking water.
It was set up for 1 day, and the exposure rate of the core wire was observed every 24 hours. Ten cages were used for breeding, and the average was calculated. <Results> The results are as shown in Table 10. Table 10*: IIICg/cM Example 5 Example 5 of anti-g paint for paper coating Comparative example 1 Comparative example 2 Styrene-butadiene rubber latex "(JSI?0693) J (Product name - Manufactured by Japan Synthetic Rubber Co., Ltd.) ) 15 15 15 Kaolinite clay 90 90 90 Calcium carbonate 101010 Sodium polyacrylate 0.2 0.2
0.2 starch 5
5 5 Melamine formaldehyde resin 0
．． 30.30.315% CHI Microcapsule
35.2 - -CHI crystal -
-4.2 Wednesday 103.8
80.3 113.1CHIim! <%)
202 Experimental Example 5 (1) Method for determining the storage stability of CHI in rodent-proof paint for paper coating> Same formulation as in Example 5, but excluding C1-If microcapsules (Control Example 1) , in which 2% CHI crystals were added instead of C11l microcapsules (Comparative Example 2): The storage stability of C1-11 in each paint was investigated under conditions of 0°C and 85% relative 0°C. C
The measurement of HI was carried out in accordance with (1) of Experimental Example 1. Results> The results are shown in Table 11 below. Table 11 (2) Rat-repelling effect of rat-proof paper coated with rat-proof paint (Method) Each paint used in (1) above was applied to 81 g/Td kraft paper in an amount of 15 g per i, and heated at normal humidity. After drying, 75x150
Cut into #Im, wrap two solid samples for rats with this, and staple the periphery to prepare the sample. This sample was placed overnight in a breeding cage containing three Wistar rats weighing 400, which had been fasted for 24 hours, and then taken out and examined for feeding damage. Five breeding cages were used and the average was calculated. <Results> The results are shown in Table 12. Table 12*: mc9 /ct/r -; No eating damage observed; +; Partially penetrated; ++; +1 side +++;
Penetration surface 2/10 or less, ÷ 10++; Penetration surface 2/10 or more Example 6 Water-based emulsion rat-proofing paint for indoor construction Example 6 Control example 1 Control example 2 Vinyl acetate/acrylic acid ester copolymer resin * 35 35
35 dibutyl phthalate 2.5 2.5
2.5D-Sorbitol (70%) 13
13 138% CI-II Microphone [] Capsule 12.5 CHI Crystal 1 U, Made Water 37.0
49.5 48.5 CHI3 hanging (%) 1
．． OQ 1.0 Experimental Example 6 (1) Aqueous: [Method for determining stability of CHI in fusion paint] Same formulation as in Example 6, excluding 8% CHI microcapsules (Control Example 1) , containing 1.0% CHI crystals instead of 8% Cl-11 microcapsules (Comparative Example 2), 200 d of each was packed in a glass bottle and stored at 30°C to evaluate the storage stability of CHI in the paint. Examined. The results are shown in Table 13 below. Table 13 (2) Water-based emulsion rat-proofing coating on glass surfaces 13
1. Method for determining the stability of CHI in a coating film> Each paint used in (1) above was applied in an amount of 30 g per glass root, dried at room temperature, and then heated at 50°C.
The storage stability of CHI in each coating film was investigated under conditions of 85% relative humidity. Results> The results were as shown in Table 14. Table 14 (f) Effects of the Invention Since the rat-proofing paint of the present invention contains a microcapsule preparation whose core material is a solution containing CHI, the rat-proofing paint itself is an excellent rat-proofing agent. It is effective. Therefore, it can be used as a rat-proofing material or by coating or impregnating various rat-proofing objects. In addition, since the core substance of the microencapsulated preparation is a c+-+r solution, when a mouse chews it, it diffuses into the saliva extremely quickly and its taste is effective, making it more effective than the conventional J:u':i'
The repellent effect itself is improved compared to that using CH[crystals, and as a result, for example, the content itself can be significantly reduced compared to when crystals are used. Furthermore, since the rodent repellent paint uses CHI's microencapsulated formulation, the resin varnish that is included in the paint as the main film-forming element and the main film-forming element when dispersed, mixed, and added to the paint. , each weighing additive does not cause a decrease in CHI titer. Furthermore, in paints that require heat treatment during the process of forming a coating film, CHI can be safely protected from heat. Therefore, CH under the above conditions
Not only is economical efficiency improved since there is no need to predict the decomposition of CHI and excessive preparation, but it can also be used for paints that could not be applied to CHI crystals until now, and its uses will expand. In addition, since CHI microcapsules are used, there is no possibility that the rodent repellent paint will seep into the object to be coated when applying it, or bleed from the coating layer of the rodent repellent paint to the object to be coated with CI-11 after the coating film is formed. Because there is no water resistance,
It has excellent chemical resistance 1, physical irritation resistance, and weather resistance, and maintains excellent rat-proofing effect over a long period of time. In addition, safety is improved due to the use of C1-11 microencapsulated preparations, which is advantageous in terms of labor safety and health during manufacturing and handling, and is also advantageous in terms of food hygiene and public health as molded products. He is right-handed. Patent applicant Tanabe I! I'lF5 Co., Ltd. Trapan Moore Co., Ltd.

Claims (1)

[Claims] A rat-proof paint comprising microcapsules in which a solution containing cycloheximide is used as a core material and the core material is covered with a wall material.