Long-acting pest repellent composition and application

Abstract

The invention discloses a long-acting pest repelling composition and application, and belongs to the field of household sanitary pest killing products, the long-acting pest repelling composition is formed by compounding mosquito-repelling synergistic dihydric alcohol and sanitary pesticide, the weight ratio of the mosquito-repelling synergistic dihydric alcohol to the sanitary pesticide is 1: 20-20: 1, and the weight ratio of the mosquito-repelling synergistic dihydric alcohol to the sanitary pesticide is 1: 1-20: 1. The mosquito-repelling synergistic dihydric alcohol is a dihydric alcohol compound with the carbon atom number of 6-9, such as 2, 2-dimethyl-1, 3-butanediol, 2-methyl-2-ethyl-1, 3-butanediol, 2-methyl-2-propyl-1, 3-butanediol and the like, can be used as a synergistic component for repelling pests, and has a certain effect of repelling blood-sucking pests, so that the mosquito-repelling synergistic dihydric alcohol can be used as a synergistic component for repelling the pests. The insect repellent has a certain mosquito repellent effect under different concentration conditions, the mosquito repellent time is prolonged along with the increase of the concentration, and after the insect repellent is matched and combined with a sanitary pesticide, the insect repellent composition formed by combining the insect repellent and the sanitary pesticide has a better repellent effect or longer repellent time.

Description

Technical Field

[0001] The present invention relates to a long - acting pest repellent composition and its application, specifically to a repellent composition containing a mosquito - repellent synergistic diol and a household pesticide, and the application of the repellent composition in preparing a pest repellent, belonging to the field of household sanitary insecticides. Background Art

[0002] A pest repellent is a chemical preparation applied to the skin or clothing to prevent bites or harassment by pests such as mosquitoes, midges, lice, mites, ticks, and fleas. It has the effects of high efficiency, long - acting, non - toxicity to humans, and broad - spectrum insect repellency. Some pest repellents have volatile odors that can make pests smell and not dare to approach; some pest repellents interfere with the olfactory receptors of pests, blocking their perception of human odors; some pest repellents mask human odor molecules, making it "difficult for mosquitoes to find targets" at the olfactory level. Known pest repellents include various compounds such as dimethyl phthalate, butopyronoxyl, ethyl hexanediol, N,N - diethyl - m - toluamide (DETA), and hydroxyl - piperonyl butoxide. However, people still hope to research and synthesize more efficient new compounds for use as pest repellents.

[0003] In the commercial application of pest repellents, the long - acting use of repellents is particularly important. In the prior art, Japanese Patent JP53064461 reported a polyol toxin, and the diols used have two hydroxyl groups at non - adjacent positions, such as 2 - methyl - 2,4 - pentanediol, or 1,3 - diol, or 1,3 - nonanediol, or 2 - ethyl - 1,3 - hexanediol, etc. These compositions have ovicidal and acaricidal activities due to the active ingredient diol and can also be used as insecticidal components other than pesticides. This type of polyol compound is a commonly used alcohol - based material, which can kill small insects such as bacteria, insect larvae, and eggs, but it cannot achieve the desired effect on blood - sucking pests such as mosquitoes.

[0004] US Patent US06119976 also reported a mosquito repellent, in which it was confirmed that 2,5 - dimethyl - 2,5 - hexanediol is an effective mosquito repellent with a long - lasting effect and is water - soluble. Specifically, by testing an aqueous solution with a concentration of 10% of 2,5 - dimethyl - 2,5 - hexanediol coated on a wooden board to observe whether mosquitoes stay on the board, and after 1 hour and 40 minutes, the efficiency of 2,5 - dimethyl - 2,5 - hexanediol did not decrease. However, the mosquito repellent effect of this repellent is poor after repeated verification. Summary of the Invention

[0005] The object of the present invention is to provide a long - acting pest repellent composition, and for the first time, a mosquito - repellent synergistic diol is provided as a synergistic ingredient for repelling pests. The mosquito - repellent synergistic diol itself has a certain repellent effect on blood - sucking pests, and when used in combination with existing household pesticides, it has a long - acting repellent effect.

[0006] In addition, the present invention also provides the application of the above-mentioned long-acting pest repellent composition. Specifically, it includes a long-acting pest repellent prepared from the long-acting pest repellent composition, and its application in controlling hygienic pests.

[0007] The present invention is achieved through the following technical solutions: A long-acting pest repellent composition is prepared by compounding a mosquito repellent synergistic diol and a hygienic pesticide. The weight ratio of the mosquito repellent synergistic diol to the hygienic pesticide is 1:20 to 20:1.

[0008] The mosquito repellent synergistic diol is a diol compound with 6 to 9 carbon atoms, and its structure is shown in the following formula (1):

[0009]

[0010] In formula (1), R2 and R3 are each selected from one of -CH3, -CH2CH3, -CH2CH2CH3, -CH(CH3)2; the branched-chain combination form of R1 and R4 is selected from one of the following:

[0011] a. R1 is -CH3 and R4 is -CH3;

[0012] b. R1 is -CH2CH3 and R4 is -CH3;

[0013] c. R1 is -CH2CH2CH3 and R4 has no branched chain;

[0014] d. R1 is -CH(CH3)2 and R4 has no branched chain;

[0015] e. R1 is -CH3 and R4 has no branched chain;

[0016] f. R1 is -CH2CH3 and R4 has no branched chain.

[0017] The mosquito repellent synergistic diol is selected from any one of 2,2-dimethyl-1,3-butanediol, 2-methyl-2-ethyl-1,3-butanediol, 2-methyl-2-propyl-1,3-butanediol, 2,2-diethyl-1,3-butanediol, 2-ethyl-2-propyl-1,3-butanediol, 2,2-dipropyl-1,3-butanediol, 3,3-dimethyl-2,4-pentanediol, 3-methyl-3-ethyl-2,4-pentanediol, 3-methyl-3-propyl-2,4-pentanediol, 3,3,5-trimethyl-2,4-pentanediol, 3,5-dimethyl-3-ethyl-2,4-pentanediol, 2,2,4-trimethyl-1,3-pentanediol, 2,4-dimethyl-2-ethyl-1,3-pentanediol, 2,2-dimethyl-1,3-hexanediol or 2-methyl-2-ethyl-1,3-hexanediol.

[0018] The sanitary pesticide described above is selected from any one of DEET, IR3535, ethyl hexanediol, menthane glycerol ether or octyl p-methylcinnamate.

[0019] A long-acting pest repellent is prepared from the above-mentioned long-acting pest repellent composition.

[0020] Optionally, the long-acting pest repellent is a mosquito repellent liquid prepared from a long-acting pest repellent composition, a solvent, an auxiliary agent, a preservative and water as raw materials. By weight percentage, the mosquito repellent liquid contains 5% - 30% of the long-acting pest repellent composition, 15% - 55% of the solvent, 0.1% - 2% of the auxiliary agent, 0.1% - 1% of the preservative, and the balance is water.

[0021] Optionally, the long-acting pest repellent is a mosquito repellent toilet water prepared from a long-acting pest repellent composition, a solvent, an auxiliary agent, a preservative and water as raw materials. By weight percentage, the mosquito repellent toilet water contains 3% - 20% of the long-acting pest repellent composition, 35% - 65% of the solvent, 0.1% - 2% of the auxiliary agent, 0.1% - 1% of the preservative, and the balance is water.

[0022] Optionally, the long-acting pest repellent is a mosquito repellent milk prepared from a long-acting pest repellent composition, a solvent, an emulsifier, a co-emulsifier, a preservative and water as raw materials. By weight percentage, the mosquito repellent milk contains 5% - 30% of the long-acting pest repellent composition, 10% - 35% of the solvent, 1% - 5% of the emulsifier, 0.1% - 1% of the co-emulsifier, 0.1% - 1% of the preservative, and the balance is water.

[0023] For the above-mentioned mosquito repellent liquid or mosquito repellent toilet water, the solvent is selected from at least one of ethanol, propylene glycol, glycerol, butylene glycol, 3-methoxy-3-methyl-1-butanol; the auxiliary agent is selected from at least one of disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, citric acid, sodium citrate, succinic acid, disodium succinate, sodium dihydrogen phosphate, disodium hydrogen phosphate, triethanolamine; the preservative is selected from one of parabens, Kathon, phenoxyethanol, levulinic acid.

[0024] For the above-mentioned mosquito repellent milk, the solvent is selected from at least one of ethanol, propylene glycol, glycerol, butylene glycol, 3-methoxy-3-methyl-1-butanol; the emulsifier is selected from at least one of polyvinylpyrrolidone, polyoxyethylene fatty acid ester / ether, Span, Tween, PEG hydrogenated castor oil, soy lecithin; the co-emulsifier is selected from one of xanthan gum, carbomer, hydroxyethyl cellulose, sodium carboxymethyl cellulose; the preservative is selected from one of parabens, Kathon, phenoxyethanol, levulinic acid.

[0025] Furthermore, the present invention also provides the application of the above-mentioned long-acting pest repellent (such as mosquito repellent liquid, mosquito repellent toilet water or mosquito repellent milk) in controlling sanitary pests, where the sanitary pests refer to mosquitoes and midges, and the application sites include schools, families, indoors, outdoors, fishing, camping and public places; when the long-acting pest repellent is used to control sanitary pests, it is directly sprayed or applied onto the skin surface to achieve the effect of repelling pests.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] (1) The present invention uses a mosquito repellent synergistic diol with a specific structure in combination with the publicly available sanitary pesticides to repel pests. For the mosquito repellent synergistic diol, it itself has some effects on repelling blood-sucking pests, has a certain mosquito repellent effect under different concentration conditions, and the mosquito repellent duration increases with the increase of concentration. After being combined with the sanitary pesticides, the pest repellent composition formed can have a better repellent effect or a longer repellent time.

[0028] (2) The present invention prepares a long-acting pest repellent composition by compounding the mosquito repellent synergistic diol with the existing sanitary pesticides. Based on the specific structure of the mosquito repellent synergistic diol, the long-acting pest repellent composition can have high thermal stability and chemical stability, as well as good safety.

[0029] (3) By using the mosquito repellent synergistic diol in combination with the sanitary pesticides, the long-acting pest repellent composition prepared, such as mosquito repellent liquid, mosquito repellent toilet water, mosquito repellent milk and other preparations, has a better pest repellent effect and a longer effective protection time. Specific Embodiments

[0030] The present invention will be further described in detail below with reference to the embodiments, but the embodiments of the present invention are not limited thereto.

[0031] I. In Examples 1 to 3, long-acting pest repellent compositions prepared by combining polyol compounds 2,2-dimethyl-1,3-butanediol, 2-methyl-2-ethyl-1,3-butanediol, 2-methyl-2-propyl-1,3-butanediol with DEET at the same concentration were used to prepare mosquito repellent toilet water.

[0032] Example 1:

[0033] Prepare mosquito repellent toilet water by mixing 7% DEET, 13% 2,2-dimethyl-1,3-butanediol, 55% ethanol, 0.5% disodium ethylenediaminetetraacetate, 0.3% methylparaben and 24.2% purified water evenly.

[0034] Example 2:

[0035] Prepare mosquito repellent toilet water by mixing 7% DEET, 13% 2-methyl-2-ethyl-1,3-butanediol, 55% ethanol, 0.5% disodium ethylenediaminetetraacetate, 0.3% methylparaben and 24.2% purified water evenly.

[0036] Example 3:

[0037] Prepare mosquito repellent toilet water by mixing 7% DEET, 13% 2-methyl-2-propyl-1,3-butanediol, 55% ethanol, 0.5% disodium ethylenediaminetetraacetate, 0.3% methylparaben and 24.2% purified water evenly.

[0038] II. Examples 4 to 6 are to prepare mosquito repellent toilet water with long-acting pest repellent compositions by combining the same concentration of polyol compounds 2,2-diethyl-1,3-butanediol, 2-ethyl-2-propyl-1,3-butanediol, 2,2-dipropyl-1,3-butanediol with menthane diol respectively.

[0039] Example 4:

[0040] Prepare mosquito repellent toilet water by mixing 5% menthane diol, 15% 2,2-diethyl-1,3-butanediol, 55% ethanol, 0.5% disodium ethylenediaminetetraacetate, 0.3% methylparaben and 24.2% purified water evenly.

[0041] Example 5:

[0042] Prepare mosquito repellent toilet water by mixing 5% menthane diol, 15% 2-ethyl-2-propyl-1,3-butanediol, 55% ethanol, 0.5% disodium ethylenediaminetetraacetate, 0.3% methylparaben and 24.2% purified water evenly.

[0043] Example 6:

[0044] Prepare mosquito repellent toilet water by mixing 5% menthane diol, 15% 2,2-dipropyl-1,3-butanediol, 55% ethanol, 0.5% disodium ethylenediaminetetraacetate, 0.3% methylparaben and 24.2% purified water evenly.

[0045] III. Examples 7 to 9 are to prepare mosquito repellent liquids with long-acting pest repellent compositions by combining the same concentration of polyol compounds 3,3-dimethyl-2,4-pentanediol, 3-methyl-3-ethyl-2,4-pentanediol, 3-methyl-3-propyl-2,4-pentanediol with dimethyl phthalate respectively.

[0046] Example 7:

[0047] Prepare a mosquito repellent liquid by mixing 4.5% of mosquito repellent alcohol, 25.5% of 3,3-dimethyl-2,4-pentanediol, 30% of propylene glycol, 5% of glycerol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 34.2% of purified water evenly.

[0048] Example 8:

[0049] Prepare a mosquito repellent liquid by mixing 4.5% of mosquito repellent alcohol, 25.5% of 3-methyl-3-ethyl-2,4-pentanediol, 30% of propylene glycol, 5% of glycerol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 34.2% of purified water evenly.

[0050] Example 9:

[0051] Prepare a mosquito repellent liquid by mixing 4.5% of mosquito repellent alcohol, 25.5% of 3-methyl-3-propyl-2,4-pentanediol, 30% of propylene glycol, 5% of glycerol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 34.2% of purified water evenly.

[0052] IV. Examples 10 to 12 are to prepare a mosquito repellent liquid with a long-acting pest repellent composition by combining the polyol compounds 3,3,5-trimethyl-2,4-pentanediol, 3,5-dimethyl-3-ethyl-2,4-pentanediol, and 2,2,4-trimethyl-1,3-pentanediol with the same concentration with the mosquito repellent ester respectively.

[0053] Example 10:

[0054] Prepare a mosquito repellent liquid by mixing 4.5% of mosquito repellent ester, 25.5% of 3,3,5-trimethyl-2,4-pentanediol, 30% of propylene glycol, 5% of glycerol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 34.2% of purified water evenly.

[0055] Example 11:

[0056] Prepare a mosquito repellent liquid by mixing 4.5% of mosquito repellent ester, 25.5% of 3,5-dimethyl-3-ethyl-2,4-pentanediol, 30% of propylene glycol, 5% of glycerol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 34.2% of purified water evenly.

[0057] Example 12:

[0058] Prepare a mosquito repellent liquid by mixing 4.5% of mosquito repellent ester, 25.5% of 2,2,4-trimethyl-1,3-pentanediol, 30% of propylene glycol, 5% of glycerol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 34.2% of purified water evenly.

[0059] 5. Examples 13 to 15 are for preparing a mosquito repellent milk with a long-acting pest repellent composition by combining polyol compounds 2,4-dimethyl-2-ethyl-1,3-pentanediol, 2,2-dimethyl-1,3-hexanediol, and 2-methyl-2-ethyl-1,3-hexanediol at the same concentration with IR3535 respectively.

[0060] Example 13:

[0061] Prepare a mosquito repellent milk by mixing 10% of IR3535, 10% of 2,4-dimethyl-2-ethyl-1,3-pentanediol, 7% of propylene glycol, 2% of glycerol, 0.65% of AVC, 0.05% of disodium EDTA, 0.5% of p-hydroxyacetophenone, 3% of cetearyl alcohol, 1% of PEG-100 stearate, 1.5% of PEG-100 stearate, 0.15% of dipotassium glycyrrhizinate, 0.5% of pentylene glycol, 0.5% of hexylene glycol, and 63.15% of purified water evenly.

[0062] Example 14:

[0063] Prepare a mosquito repellent milk by mixing 10% of IR3535, 10% of 2,2-dimethyl-1,3-hexanediol, 7% of propylene glycol, 2% of glycerol, 0.65% of AVC, 0.05% of disodium EDTA, 0.5% of p-hydroxyacetophenone, 3% of cetearyl alcohol, 1% of PEG-100 stearate, 1.5% of PEG-100 stearate, 0.15% of dipotassium glycyrrhizinate, 0.5% of pentylene glycol, 0.5% of hexylene glycol, and 63.15% of purified water evenly.

[0064] Example 15:

[0065] Prepare a mosquito repellent milk by mixing 10% of IR3535, 10% of 2-methyl-2-ethyl-1,3-hexanediol, 7% of propylene glycol, 2% of glycerol, 0.65% of AVC, 0.05% of disodium EDTA, 0.5% of p-hydroxyacetophenone, 3% of cetearyl alcohol, 1% of PEG-100 stearate, 1.5% of PEG-100 stearate, 0.15% of dipotassium glycyrrhizinate, 0.5% of pentylene glycol, 0.5% of hexylene glycol, and 63.15% of purified water evenly.

[0066] Comparative Example 1:

[0067] Prepare a mosquito repellent toilet water by mixing 7% of DEET, 55% of ethanol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 37.2% of purified water evenly.

[0068] Comparative Example 2:

[0069] Prepare a mosquito repellent toilet water by mixing 5% of menthane diol, 55% of ethanol, 0.5% of disodium ethylenediaminetetraacetate, 0.3% of methylparaben, and 39.2% of purified water evenly.

[0070] Comparative Example 3:

[0071] Prepare mosquito repellent liquid by mixing 4.5% of anopheles, 30% of propylene glycol, 5% of glycerin, 0.5% of disodium ethylenediaminetetraacetic acid, 0.3% of methylparaben and 59.7% of purified water.

[0072] Comparative Example 4:

[0073] Prepare mosquito repellent liquid by mixing 4.5% of chlorpyrifos, 30% of propylene glycol, 5% of glycerin, 0.5% of disodium ethylenediaminetetraacetic acid, 0.3% of methylparaben and 59.7% of purified water.

[0074] Comparative Example 5:

[0075] Prepare mosquito repellent lotion by mixing 10% hydroxyphenylpropene ether, 7% propylene glycol, 2% glycerin, 0.65% AVC, 0.05% disodium EDTA, 0.5% p-hydroxyacetophenone, 3% cetearyl alcohol, 1% PEG-100 stearate, 1.5% PEG-100 stearate, 0.15% dipotassium glycyrrhizinate, 0.5% pentylene glycol, 0.5% hexylene glycol and 73.15% purified water.

[0076] The mosquito repellent products (mosquito repellent floral water, mosquito repellent liquid, mosquito repellent milk) prepared in Examples 1 to 15 of the present invention and the control mosquito repellent products (mosquito repellent floral water, mosquito repellent liquid, mosquito repellent milk) prepared in Comparative Examples 1 to 5 were respectively taken to perform mosquito repellent effect and duration tests, and the specific methods are as follows:

[0077] (1) Test conditions: temperature (26 ± 1) °C, relative humidity 65% ​​± 10%.

[0078] (2) Test insects: Aedes albopictus was provided in accordance with the requirements of CB / T 13917.9-2009 “Indoor efficacy test and evaluation of public health insecticides for registered pesticides Part 9: Repellents” and was provided by our company’s insect breeding room.

[0079] (3) Test equipment and instruments:

[0080] Mosquito cage: length 300mm, width 300mm, height 300mm; stopwatch.

[0081] (4) Indoor efficacy test method: According to GB / T 13917.9-2009, the specific method is as follows: select 4 or more testers with qualified attack power (half male and half female, and should not drink alcohol, tea or coffee before and during the test, and should not use products containing fragrances), draw a 50mm×50mm skin area on each of their arms, and press 1.5μL / cm on one hand. 2Apply the mosquito repellent of a uniform dose to the skin to be tested, expose a 40 mm × 40 mm area of the skin, and tightly cover the remaining parts. Use the other hand as a blank control. After 1 hour of application, insert the hand into a mosquito cage with qualified attacking ability for 2 minutes, and observe whether mosquitoes come to land and suck blood. Then, conduct a test every 1 hour to determine the effective repellent time of the mosquito repellent. Each time, first conduct a blank test on the control hand. If the test insects with qualified attacking ability can continue the experiment, if the attacking ability of the test insects is unqualified, qualified test insects need to be replaced for the experiment.

[0082] (5) The test results are shown in Tables 1 to 20 below.

[0083] Table 1: Test Results of Example 1

[0084]

[0085] Table 2: Test Results of Example 2

[0086]

[0087] Table 3: Test Results of Example 3

[0088]

[0089] Table 4: Test Results of Comparative Example 1

[0090]

[0091]

[0092] Table 5: Test Results of Example 4

[0093]

[0094] Table 6: Test Results of Example 5

[0095]

[0096] Table 7: Test Results of Example 6

[0097]

[0098] Table 8: Test Results of Comparative Example 2

[0099]

[0100]

[0101] Table 9: Test Results of Example 7

[0102]

[0103] Table 10: Detection Results of Example 8

[0104]

[0105] Table 11: Detection Results of Example 9

[0106]

[0107]

[0108] Table 12: Detection Results of Comparative Example 3

[0109]

[0110] Table 13: Detection Results of Example 10

[0111]

[0112] Table 14: Detection Results of Example 11

[0113]

[0114] Table 15: Detection Results of Example 12

[0115]

[0116]

[0117] Table 16: Detection Results of Comparative Example 4

[0118]

[0119] Table 17: Detection Results of Example 13

[0120]

[0121] Table 18: Detection Results of Example 14

[0122]

[0123] Table 19: Detection Results of Example 15

[0124]

[0125] Table 20: Detection Results of Comparative Example 5

[0126]

[0127] In summary, the present invention actually provides a novel mosquito repellent synergistic component, such as the diol compounds described in Examples 1 to 15. These diol compounds are formulated with existing hygienic pesticides (such as DEET, menthane diol, ethyl hexanediol, IR3535, etofenprox) and other additives to prepare mosquito repellent liquids, mosquito repellent toilet waters or mosquito repellent creams, which can significantly extend the repellent time of existing hygienic pesticides, endowing them with a longer-lasting mosquito repellent effect. They can be used as synergists for long-lasting pest repellent compositions, increasing the diversity of existing synergist component choices and having good safety.

[0128] The above are only the preferred embodiments of the present invention and do not impose any formal limitations on the present invention. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. A long-acting pest repellent composition, characterized in that: It is composed of a mosquito repellent synergistic diol and a hygienic pesticide, and the weight ratio of the mosquito repellent synergistic diol to the hygienic pesticide is 1:20 to 20:

1. The mosquito repellent synergistic diol is a diol compound with 6 to 9 carbon atoms, and its structure is shown in the following formula (1): （1） In formula (1), R2 and R3 are each selected from one of -CH3, -CH2CH3, -CH2CH2CH3, -CH(CH3)2; and the branched-chain combination form of R1 and R4 is selected from one of the following: a. R1 is -CH3 and R4 is -CH3; b. R1 is -CH2CH3 and R4 is -CH3; c. R1 is -CH2CH2CH3 and R4 has no branch; d. R1 is -CH(CH3)2 and R4 has no branch; e. R1 is -CH3 and R4 has no branch; f. R1 is -CH2CH3 and R4 has no branch.

2. The long-acting pest repellent composition according to claim 1, wherein: The mosquito repellent synergistic diol is selected from any one of 2,2-dimethyl-1,3-butanediol, 2-methyl-2-ethyl-1,3-butanediol, 2-methyl-2-propyl-1,3-butanediol, 2,2-diethyl-1,3-butanediol, 2-ethyl-2-propyl-1,3-butanediol, 2,2-dipropyl-1,3-butanediol, 3,3-dimethyl-2,4-pentanediol, 3-methyl-3-ethyl-2,4-pentanediol, 3-methyl-3-propyl-2,4-pentanediol, 3,3,5-trimethyl-2,4-pentanediol, 3,5-dimethyl-3-ethyl-2,4-pentanediol, 2,2,4-trimethyl-1,3-pentanediol, 2,4-dimethyl-2-ethyl-1,3-pentanediol, 2,2-dimethyl-1,3-hexanediol or 2-methyl-2-ethyl-1,3-hexanediol.

3. The long-acting pest repellent composition according to claim 1, wherein: The hygienic pesticide is selected from any one of DEET, IR3535, ethyl butylacetylaminopropionate, menthane diol or hydroxyl p-phenylbenzoate.

4. A long-acting pest repellent, characterized in that: It is prepared from the long-acting pest repellent composition described in claim 1.

5. The long-acting pest repellent according to claim 4, wherein: The long-acting pest repellent is a mosquito repellent liquid prepared from a long-acting pest repellent composition, a solvent, an adjuvant, a preservative and water as raw materials. By weight percentage, the mosquito repellent liquid contains 5% to 30% of the long-acting pest repellent composition, 15% to 55% of the solvent, 0.1% to 2% of the adjuvant, 0.1% to 1% of the preservative, and the balance is water.

6. The long-acting pest repellent according to claim 4, wherein: The long-acting pest repellent is a mosquito repellent toilet water prepared from a long-acting pest repellent composition, a solvent, an adjuvant, a preservative and water as raw materials. By weight percentage, the mosquito repellent toilet water contains 3% to 20% of the long-acting pest repellent composition, 35% to 65% of the solvent, 0.1% to 2% of the adjuvant, 0.1% to 1% of the preservative, and the balance is water.

7. The long-acting pest repellent according to claim 4, characterized in that: The long-acting pest repellent is a mosquito repellent lotion prepared from a long-acting pest repellent composition, a solvent, an emulsifier, a co-emulsifier, a preservative and water as raw materials. By weight percentage, the mosquito repellent lotion contains 5% - 30% of the long-acting pest repellent composition, 10% - 35% of the solvent, 1% - 5% of the emulsifier, 0.1% - 1% of the co-emulsifier, 0.1% - 1% of the preservative, and the balance is water.

8. The long-acting pest repellent according to any one of claims 5 or 6, characterized in that: The solvent is selected from at least one of ethanol, propylene glycol, glycerol, butanediol, 3-methoxy-3-methyl-1-butanol; the auxiliary agent is selected from at least one of disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, citric acid, sodium citrate, succinic acid, disodium succinate, sodium dihydrogen phosphate, disodium hydrogen phosphate, triethanolamine; the preservative is selected from one of parabens, Kathon, phenoxyethanol, levulinic acid.

9. The long-acting pest repellent according to claim 7, wherein: The solvent is selected from at least one of ethanol, propylene glycol, glycerol, butanediol, 3-methoxy-3-methyl-1-butanol; the emulsifier is selected from at least one of polyvinylpyrrolidone, polyoxyethylene fatty acid ester / ether, Span, Tween, PEG hydrogenated castor oil, soy lecithin; the co-emulsifier is selected from one of xanthan gum, carbomer, hydroxyethyl cellulose, sodium carboxymethyl cellulose; the preservative is selected from one of parabens, Kathon, phenoxyethanol, levulinic acid.

10. Use of the long-acting pest repellent according to any one of claims 4 to 7 in controlling sanitary pests, characterized in that: The sanitary pests refer to mosquitoes and midges, and the application sites include schools, families, indoors, outdoors, fishing, camping and public places; when the long-acting pest repellent is used to control sanitary pests, it is directly sprayed or applied to the skin surface to achieve the effect of repelling pests.

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