JPH06219906A - Animal-repelling aqueous coating composition - Google Patents

Abstract

PURPOSE:To provide the subject coating type composition high in safety and animal-repelling effect, and capable of persisting the effect for a long period of time by using an aqueous resin as a coating base material and further using the microcapsules of a non-toxic deleterious substance, capsaicin compound, as a repelling ingredient. CONSTITUTION:The aqueous coating animal-repelling agent comprises the combination of an aqueous resin with the microcapsules of a capsaicin compound in a mixing ratio of 99-50 pts.wt. (solid content): 1-50 pts.wt.. The capsaicin compound is a compound of the formula (R is 7-12C alkyl, 7-12C alkenyl) capable of being extracted from Guinea pepper. The content of the capsaicin compound in the microcapsules is preferably 5-80wt.%. Examples of the aqueous resin include an acrylic emulsion resin, a polyurethane emulsion resin, and an epoxy emulsion resin. A coloring agent and an UV light-screening agent may be added to the composition. The composition is effective for vertebrates, mammalians, especially rats, dogs, cats, wild animals, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an animal repellent, in particular, a water-based application animal repellent composition having a repellent function for spinal animals and mammals.

[0002]

2. Description of the Related Art In recent years, as offices have become OA and buildings have become more intelligent, urban structures have changed, and wiring, cables, electricity, information equipment, packaging materials, and structures of buildings have been ratified. , Accidents where so-called bite is serious,
It causes enormous economic loss. In addition, from the viewpoint of hygiene, odors such as urine and feces are also transmitted, and infectious diseases caused by mites, fleas and bacteria are transmitted by these substances. Therefore, the need for these proactive protection measures is increasing. In terms of industry and hygiene, more than several thousand kinds of repellent components for small animals such as mice have been developed or proposed so far. Among them, in Japan, there is a cycloheximide microcapsule commercialized as a representative murine repellent and shown in the literature by Masashi Kano, Teruyuki Takahashi, Coating Engineering Vol. 27, No. 2 (1992) rodent coating. Also, there are those disclosed in Japanese Patent Laid-Open No. 4-119835 and the like, but the effects were not satisfactory.

[0003]

The conventional mouse repellents for application are mainly organic solvent-based, and often contain chlorine-based solvents, which are highly likely to inhale the solvent in a narrow space or in a poorly ventilated environment. There is also a safety and health problem, and there is a risk of ignition and explosion if a combustible solvent is used. As for the repellent component, toxicity and deleterious substances such as antibiotics were used, and there was a drawback in terms of safety.

[0004]

[Means for Solving the Problems] The conventional problems are solved,
As a result of extensive research on coating repellents that are safe and have a better repellent effect than conventional coated murine repellents, and that the effect lasts for a long time, the result of using a water-based resin as the coating base Eliminates safety and health problems, reduces odor, eliminates the danger of ignition and explosion, and uses a capsaicin microcapsule that is not a poisonous substance as a repellent component and combines it with an aqueous resin. Is highly safe and has a large repellent effect,
The present invention was completed based on this finding, since it was found to be a coating type animal-repellent water-based composition capable of maintaining a long-term effect.

The present invention is a water-based (water-based) animal-repellent composition which contains a water-based resin and microcapsules of capsaicin as essential components and is applied to have a repellent effect on rodents, dog-proof cats, and wild beasts. Then, if it is used as it is, a substantially transparent film is formed, but it is possible to add a coloring agent to make it easy to discriminate the place where it is applied or to serve as beautiful clothes. Further, when it is applied to a place exposed to sunlight, the coating film and the microcapsules of capsaicin may be destroyed by ultraviolet rays. Therefore, by including an ultraviolet blocking agent, the repellent effect can be maintained for a long time.

The water-based resin is 99 in the composition of the present invention.
To 50 parts by weight (as solid content), and 1 to 50 parts by weight of microcapsules. If the content of the microcapsules of capsaicin is less than 1 part by weight, the repellent effect may be reduced, and if the film thickness is thin due to variation in the film thickness when applied, the amount per area may decrease. On the other hand, the larger the amount of capsaicin microcapsules, the greater the repellent effect, but if the amount exceeds 50 parts by weight, the strength of the coating film is significantly reduced, and there is an economical problem. The water-based coated animal repellent composition of the present invention containing a microcapsule of water-based resin and capsaicin, further, in the case of beauty or when applied and in outdoor use, also for the purpose of long-term durability, a colorant and an ultraviolet blocking agent. Can be included.

The water-based animal-repellent composition of the present invention comprises a water-based resin (in the form of an aqueous emulsion or an aqueous solution) containing microcapsules of capsaicins, and when it is used, it is applied to a desired portion and dried. Let In the coating film thus formed, the microcapsules are scattered in the resin and fixed. When a mouse or other animal paints a coating applied to it, the capsule breaks when capping the teeth, capsaicins are released, and the chewing is stopped, that is, the repellent effect is exerted. That is, when the capsaicin microcapsules themselves are applied, they fall off the surface or when the animal bites, the microcapsule particles move and are not skillfully destroyed, and when touched, they touch human limbs and there is a disadvantage of safety. In contrast, such problems are overcome when using the compositions of the present invention.

The capsaicins used in the present invention have the following formula (1)

[0009]

[Chemical 1]

(Wherein R represents an alkyl group or an alkenyl group having 7 to 12 carbon atoms).

More preferable R in the formula (1) are those having 7 to 10 carbon atoms as follows, but are not limited thereto.

That is, R is CH ₃ (CH ₂ ) ₆ (caprylic acid vanillyl amide), and R is CH ₃
(CH _{2) 7} - one (nonanoyl vanillyl amide),
R is CH ₃ (CH _{2) 8} - one (Desi Rick A Sid vanillylamide), R is _{(CH 3) 2 CH (CH} 2) 5 -
(Nordihydrocapsaicin I), R is (CH
₃ ) ₂ CH (CH ₂ ) ₆ − (dihydrocapsaicin), R is (CH ₃ ) ₂ CH (CH ₂ ) ₇ — (homodihydrocapsaicin I), R is CH ₃ CH ₂ CH
_{(CH 3) (CH 2)} 4 - one (nordihydrocapsaicin II), R is _{CH 3 CH 2 CH (CH 3} ) (CH
_{2) 6} - one (homo dihydrocapsaicin II) of, R is _{(CH 3) 2 CHCH = CH} (CH 2) 4 - ones (capsaicin), R is _{(CH 3) 2 CHCH 2 CH} = CH
(CH _{2) 4} - one (homocapsaicin I), R is C
_{H 3 CH 2 CH (CH 3} ) CH = CH (CH 2) 4 - a thing (homocapsaicin II).

The compound of the formula (1) used in the present invention can also be extracted from red pepper, and the red pepper extract can be obtained, for example, as follows. I.e. dry,
Methanol, alcohol-based solvent such as ethanol, ether-based solvent such as ethyl ether, ketone-based solvent such as acetone, aromatic solvent such as benzene, etc.
After extraction with a chlorine-based solvent such as dichloroethane or chloroform and filtration, the filtrate is heated with an evaporator and the pressure is reduced to distill off the solvent to obtain a capsicum extract. In addition, a capsicum extract containing a higher concentration of capsaicin can be obtained by subjecting this extract to column chromatography using silica gel, alumina, or the like.

The microencapsulation technique for preparing the microcapsules used in the present invention is not particularly limited, and it is generally known that, for example, the core substance containing capsaicin on the side to be encapsulated is used as a membrane. Dissolve the material and disperse it in an insoluble dispersion medium, add a soluble reaction material to the dispersion medium while stirring, and react both of them on the surface of the dispersed particles to encapsulate the core substance in the polymer capsule. An interfacial polymerization method for forming a film, or an in situ polymerization method in which a film material is supplied from only one of dispersed particles or a dispersion medium to form a capsule film on the surface of dispersed particles, coacervation method, in liquid Microencapsulation may be performed by any method such as a curing coating method (orifice method), a submerged drying method, and a spraying / granulating method. Microcapsules usually have an average particle size of 5 to 50
Although the particles having a size of μm are used, the particle size is not limited to this range. Examples of the film material include a urethane film obtained by reacting a polyvalent isocyanate with a polyvalent amine.

The content of capsaicins in the microcapsules is usually 1% by weight or more, preferably 5 to 80% by weight.

Examples of the water-based resin used in the water-based animal repellent composition of the present invention include acrylic emulsion resins (acrylic acid alkyl ester copolymer, acrylonitrile / acrylic acid alkyl ester copolymer, styrene / acrylic acid alkyl ester copolymer). Styrene / methacrylic acid alkyl ester / acrylic acid alkyl ester copolymer, methacrylic acid alkyl ester / acrylic acid alkyl ester copolymer, acrylic acid methacrylic acid / acrylic acid alkyl ester copolymer, vinylidene chloride / acrylic acid alkyl ester Copolymers) Polyurethane / emulsion resin, epoxy emulsion resin, acrylic / vinyl acetate copolymer / emulsion resin,
Ethylene acrylic modified emulsion resin, vinyl acetate
Ethylene copolymer emulsion resin, vinyl acetate / ethylene / vinyl chloride emulsion resin, vinyl acetate / ethylene / acrylic emulsion resin, ethylene / vinyl chloride emulsion resin, alkyd emulsion resin,
An epoxy ester emulsion resin, or a resin in which each resin is dispersed or dissolved in an aqueous medium can be used.

As the repellent, for example, the antibiotic cycloheximide (naramycin), organotin mercaptide,
Phenylurea, 1.17-diguanidino-9-azaheptadecane and its salt, alkyl pyridine, benzol chloride, lemongrass oil system, allyl isothiocyanate, etc. have been proposed or put into practical use, but all of them are antibiotics, poisons, It is not desirable because it affects the human body such as a deleterious substance. On the other hand, in the present invention, capsaicin microcapsules are used as a repellent component, but capsaicins are widely used as spices and are safe. More preferably, the one prepared by the synthetic method described in JP-A-4-36201 is used. Microcapsules of capsaicins are prepared by this method, but if a suspension liquid before being dried and powdered is mixed with an aqueous resin, the suspension can be used as an aqueous composition as it is, and the drying step can be omitted. It is economically advantageous. In addition, it is possible to avoid obstacles due to scattering of microcapsules, which is good for work.

The colorant may be any pigment used in paints, such as titanium dioxide, carbon black, black iron oxide black, yellow lead, yellow iron oxide yellow,
Organic yellow pigments such as titanium yellow and Hansa yellow, organic orange pigments such as molybdate orange and perinone orange, organic and inorganic red pigments such as red iron oxide and quinacridone, purple pigments such as dioxane bio red, cobalt Examples thereof include inorganic and organic blue pigments such as blue, navy blue, ultramarine blue and cyanine blue, inorganic / organic green pigments such as chrome green and cyanine green, fluorescent pigments and metallic powder pigments such as aluminum.

As the ultraviolet blocking agent for preventing the deterioration of the coating film of the water-based coated animal repellent composition of the present invention and the microcapsules of capsaicins, one that absorbs ultraviolet light or reflects light may be used. Extenders such as titanium, calcium carbonate, talc, barium sulfate, barium carbonate and kaolin, and commercially available products such as benzophenone-based and benzotriazine-based UV absorbers may be contained. Hereinafter, the waterborne animal repellent composition according to the present invention will be described with reference to Examples.

[0020]

【Example】

Example 1 4.9 parts by weight of pentadiol monoisobutyrate is gradually added as a film forming aid while stirring an acrylic emulsion resin (94 parts by weight of resin solid content in an aqueous emulsion). Then, 1.1 parts by weight of nonanoyl vanillyl amide microcapsules were added and mixed well to obtain the water-based animal repellent composition of the present invention. This repellent composition was applied to a vinyl chloride sheet with a brush to a thickness of 30 μm, dried for 1 week, and used as a sheet to be subjected to a repellent test. With the surface on which the repellent component was applied of this sheet facing outward, several solid feeds for rats were put in two folds and the periphery was stopped with a stapler to prepare a food bag. Similarly, a non-coated vinyl chloride sheet was used to form a bait bag for comparison. Each one was placed in a cage containing an animal (rat) and left overnight, and the food bag was collected to observe the degree of bite damage. During the standing period, no food was given and only water was used. The results of comparison between the sample treated with the composition of the present invention and the sample without coating are shown in Table 1. Those containing 1% or more of capsaicins microcapsules were good with almost no bite damages. The composition-treated sheet of the present invention was allowed to stand at 50 ° C. for 3 months, and the film was observed under a microscope. However, the encapsulated capsaicin microcapsules showed no change, and a sustained efficacy of about 10 years is expected indoors. It was the result.

Example 2 Similar to Example 1, commercially available water-based pigment dispersion paste (acrylic emulsion resin solid content 61.5 parts by weight), pentadiol monoisobutyrate 3.4 parts by weight, water-based pigment dispersion paste (disperse) Color SD-4002 yellow: manufactured by Dainippon Ink and Chemicals, Inc.) 13.0 parts by weight and capsaicin microcapsules 22.1 parts by weight of the composition of the present invention prepared by coating are applied to a vinyl chloride plate, and the appearance of the coated surface is shown. It was judged visually. The results are shown in Table 2. The unpainted part and the like were clearly discernible, and the appearance was good.

Example 3 UV-blocking ingredient Benzotriazole type Tinuvin # 32
0 (Ciba Geigy) 30 parts by weight, hydroxyethyl cellulose (Natrosol 250MR: Hercules) 1% aqueous solution 70 parts by weight, polyvalent carboxylic acid sodium salt (dispersant) 0.3 parts by weight, and mixed with glass Beads 1
00 parts by weight was added, and the mixture was dispersed for 30 minutes with a paint disperser.
Using this dispersion, the following composition was mixed to obtain a composition of the present invention. Formulation 1: 91.1 parts by weight of acrylic emulsion resin (as solid content), pentadiol monoisobutyrate 4.
8 parts by weight, Tinuvin # 320 30% dispersion liquid 3.0 parts by weight, capsaicin microcapsules 1.0 parts by weight.
As a comparative control, the one without addition of Tinuvin # 320 dispersion was used. Coating and drying were performed in the same manner as in Example 1, and the sunshine carbon arc lamp type (JIS K5400 was used.
The accelerated weather resistance test was performed for 480 hours in 9.8.1).
The results are shown in Table 3. The incorporation of the UV-blocking component was effective in stabilizing the microcapsules of capsaicins. Formulation 2: 43.3 parts by weight of acrylic emulsion resin (as solid content), pentadiol monoisobutyrate 4.
0 parts by weight, Tinuvin # 320 30% dispersion liquid 3.0 parts by weight, capsaicin microcapsules 49.7 parts by weight. Note) 1. Bite damage degree indication symbol −: Almost no bite damage ±: Bite damage area against test area 3% or less +: Same as above 10% or less ++: Same as above 30% or less +++: Same as above 30% or more 2. Acrylic Emulsion Resin In this example, an acrylic / styrene emulsion resin (Acronal Y J-151OD: manufactured by Mitsubishi Petrochemical Badesh Co., Ltd.) was used. The repellent effect was good when the content of capsules was 1% or more. 3. Microcapsules of Capsaicins As the microcapsules of capsaicins used in this example, R-731 (nonanoyl vanillyl amide 32% -containing amino resin microcapsules) manufactured by Nippon Kayaku Co., Ltd. was used.

[0023]

As described above, by combining the water-based resin with the microcapsules of capsaicin, an aqueous coating composition having a high safety and a long-term effective animal repellent effect can be obtained. Further, by coloring this, it is possible to prevent uneven coating and also to be beautifully dressed, and by adding an ultraviolet ray blocking component, the effect can be maintained for a long time even when used outdoors.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical indication location A01N 25/28 9159-4H (72) Inventor Kanji Yoshizawa 960-37 Kamihideya, Okegawa, Saitama ( 72) Inventor Mitsuo Kurata 1-14-15 Asamadai, Ageo City, Saitama Prefecture

Claims (5)

[Claims] 1. A water-based animal-repellent composition comprising a water-based resin and microcapsules of capsaicin as essential components. 2. The mixing ratio of the water-based resin and the microcapsules of capsaicin is 99 to 50 parts by weight (solid content) for the water-based resin and 1 to 50 parts by weight for the microcapsules. Aqueous application animal repellent composition. 3. The waterborne animal repellent composition according to claim 1, which further comprises a coloring agent. 4. The water-based application animal repellent composition according to claim 1, which further comprises an ultraviolet blocking agent. 5. The waterborne animal repellent composition according to claim 1, which contains a colorant and an ultraviolet blocking agent.