CN104273158B - A kind of pyrethroid release control compositions - Google Patents
A kind of pyrethroid release control compositions Download PDFInfo
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- CN104273158B CN104273158B CN201410529414.3A CN201410529414A CN104273158B CN 104273158 B CN104273158 B CN 104273158B CN 201410529414 A CN201410529414 A CN 201410529414A CN 104273158 B CN104273158 B CN 104273158B
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Abstract
The invention provides a kind of pyrethroid release control compositions, comprise pyrethroid, wax and carrier, its ratio is every 100 weight portion pyrethroids, and containing 2-60 weight portion wax, described pyrethroid is 25 DEG C of vapour pressure >=1 �� 10-6Pa. In case of need, this release control compositions can further include 0.4-120 weight portion low voc solvent. The pyrethroid release control compositions of the present invention can realize the pyrethroid steady release under normal temperature condition, kills insect for space, especially the flying pest such as mosquito, fly.
Description
Technical field
The present invention relates to the compositions of a kind of pyrethroid release control, it may be achieved the pyrethroid steady release under normal temperature condition, kill insect for space, particularly the preventing and treating of flying pest.
Background technology
Pyrethroid is the broad spectrum pesticide that a class can prevent and treat various pests, is widely used in the preventing and treating of sanitary insect pest, especially the preventing and treating of the flying pest such as mosquito, fly. reach the effect of lasting space pest control, pyrethroid is needed to be sustained release in air, common mode is make pyrethroid sustained release within a certain period of time under heating condition, such as coiled mosquito-repellent incense, electric mosquito repellent tablet, electric mosquito repellent liquid product is this type, but these products realize pyrethroid release due to needs by hot conditions, energy expenditure is high and there is potential safety hazard, thus the mode realizing pyrethroid release under room temperature mode has safety, the plurality of advantages such as easy to use, generally can by the carrier of load pyrethroid be placed in suspension member mode under normal temperature condition, make pyrethroid Spontaneous release, another way is blow the carrier through appendix insecticide by fan airstream, improves the rate of release of pyrethroid.
Chinese patent CN101702914B discloses a kind of method that 160 DEG C to 300 DEG C melting mixing prepared by polyvinyl resin and insect-controlling agent (insecticide) long filament. This long filament can be further prepared into netted, rope, the isostructural object of yarn is for preventing and treating arthropods class pest under normal temperature condition. The preferred insect-controlling agent of this invention is that the vapour pressure of 25 DEG C is less than 1 �� 10-6The pyrethroid insectide of mmHg. Material obtained by this melting mixing mode, discharges after migrating to resin surface due to insecticide needs from resin material, and release process is slowly, it is impossible to realizes space insect repellant effect, can be only applied to the obstruct insect protected effect of contact-type.
As a kind of eased mode, it is possible to direct for pyrethroid appendix is had the carrier surface of open structure, at the slow releasing naturally placing or realizing under fan airstream drive condition pyrethroid. As Chinese patent CN101595864B discloses the application process of a kind of fan-type insecticidal incense, including leaching medicine body and the fan assembly containing leaching medicine body.This invention is soaked the preparation method of medicine body for adopting low boiling point solvent that insecticide dissolving is prepared into solution, leaching drug carrier is immersed solution, or solution is uniformly dropped on leaching drug carrier, dry in the air at room temperature 25 DEG C and blow, or 30 DEG C-70 DEG C bakings, make wholly or largely solvent be evaporated completely, prepare leaching medicine body.
The inventors discovered that the leaching medicine body obtained by this method, the rate of release of insecticide ingredient has inhomogeneities clearly, and insecticide rate of release is in being significantly gradually reduced trend, even at the rate of release of end less than the 50% of initial release speed; On the other hand, owing to insecticide release lacks buffer condition, rate of release is bigger by the impact of the external conditions such as temperature, humidity, wind speed.
Summary of the invention
The present inventor is in order to solve the variety of problems of prior art, find through research, if appendix is on carrier after pyrethroid and wax being mixed by a certain percentage, no matter it is when natural hanging, or under fan airstream drives, the stationarity of pyrethroid release is good unexpectedly, it is in particular in that pyrethroid overall release rate in release process remains stable for, and rate of release is less by the impact of the external condition such as temperature, humidity, and the addition of wax can reduce pyrethroid rate of release, extend the use time. Further, since wax is solid-state at normal temperatures, and it is liquid under most of pyrethroid room temperature, first valve state mixture can be formed after mixing with wax, be conducive to pyrethroid appendix on carrier. Further investigation revealed that, if being simultaneously introduced a certain proportion of low voc solvent, it is possible under the premise that release stationarity keeps, improve rate of release, it is achieved the release control of pyrethroid.
Based on above-mentioned discovery, the present invention has following content:
A kind of pyrethroid release control compositions, it comprises pyrethroid, wax and carrier, and its ratio is every 100 weight portion pyrethroids, containing 2-60 weight portion wax; Described pyrethroid is 25 DEG C of vapour pressure >=1 �� 10-6Pa��
Described pyrethroid release control compositions, the ratio after its optimization is every 100 weight portion pyrethroids, containing 4-40 weight portion wax.
Described pyrethroid release control compositions, also can further include: the low voc solvent of 0.4-120 weight portion, it is preferable that the low voc solvent of 0.8-80 weight portion.
Described pyrethroid release control compositions, described pyrethroid is one or both in etrafluorine ethofenprox, transfluthrin, seven fluorine methothrin, dimefluthrin, metofluthrin, empenthrin.
Described pyrethroid release control compositions, described wax is for any one in the higher alkane of solid-state, higher alcohol, higher fatty acids or high-grade aliphatic ester or the mixture more than both under room temperature.
Described pyrethroid release control compositions, described low voc solvent is under 101.3KPa normal pressure, the initial boiling point alkanes more than 250 DEG C or esters solvent.
Described pyrethroid release control compositions, described carrier medium is synthetic resin, Plant fiber or the paper being Raw material processing with Plant fiber.
Described pyrethroid release control compositions, described carrier is lamellar, rugosity, netted, honeycomb or spongy.
In the present invention, the purpose of pyrethroid release control compositions is in that the steady release realizing pyrethroid under normal temperature condition, at normal temperatures, pyrethroid is discharged to air by volatilization mode, arrive and desirably kill insect effect, require that pyrethroid reaches certain concentration in atmosphere, for most of pyrethroids, its vapour pressure (25 DEG C) is 1.0 �� 10-8Pa to 1.0 �� 10-1Within the scope of Pa, variety classes pyrethroid is different due to chemical constitution, and its vapour pressure is widely different, and 25 DEG C of vapour pressures are lower than 1.0 �� 10-6The pyrethroid of Pa is difficult to volatilization at ambient temperature and reaches the concentration of enough vermins-proof effects, and therefore pyrethroid of the present invention is 25 DEG C of vapour pressure >=1 �� 10-6The pyrethroid of Pa, described pyrethroid includes but not limited to one or both in etrafluorine ethofenprox, transfluthrin, seven fluorine methothrin, dimefluthrin, metofluthrin, empenthrin.
As mentioned above, the inventors discovered that and a kind of realized pyrethroid compositions of steadily release under normal temperature condition, it comprises important component for " wax ", and " wax " of the present invention be broadly, at normal temperatures for solid-state, there is plasticity, heating after the material that easily melts. Specifically, described wax is for any one in the higher alkane of solid-state, higher alcohol, higher fatty acids, high-grade aliphatic ester or the mixture more than both under room temperature, these materials all can form first valve state mixture with pyrethroid, " buffering " effect is played in pyrethroid release, additionally, the first valve state mixture that wax and pyrethroid are formed contributes to pyrethroid attachment on carrier.
Higher alkane includes but not limited to the alkane of carbon number 20 to 60.
Higher alcohol includes but not limited to the high alcohol of carbon number 14 to 40, it is possible to list out myristyl alcohol, pentadecanol, palmityl alcohol, Heptadecyl alcohol, stearyl alcohol, nonadecanol, arachidic alcohol, behenyl alcohol, tetracosanol, hexacosanol, octacosanol, melissyl alcohol etc.
Higher fatty acids includes but not limited to the higher fatty acids of carbon number 12 to 40, it is possible to list lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, Palmic acid, Heptadecyl alcohol, stearic acid, nonadecanoic acid, arachidic acid, behenic acid, lignin acid, cerinic acid, montanic acid, melissic acid, lacceroic acid, the acid of leaf louse etc.
High-grade aliphatic ester includes but not limited to the ester type compound under the room temperature that the higher fatty acids of carbon number 12 to 40 is formed for solid, the ester that the high alcohol of the higher fatty acids and carbon number 14 to 40 that farther include but be not limited to carbon number 12 to 40 is formed, and the glyceride of the higher fatty acids of carbon number 12 to 40, glycol ester, propylene glycol ester, it is possible to list lauric acid Laurel alcohol ester, Palmic acid Semen Myristicae alcohol ester, soft ester acid Herba leucadis ciliatae alcohol ester, glyceryl laurate ester, mono stearate glyceryl ester, glycol stearate etc.
Described wax can derive from natural or synthetic, the native paraffin deriving from plant or animal is generally the two or more mixture comprising in above-mentioned higher alkane, higher alcohol, high-grade aliphatic ester, can list paraffin, microwax, Brazil wax, candelilla wax, Cera Flava, Chinese wax, spermaceti, lanocerin etc.
In the release control compositions comprising pyrethroid, wax and carrier, the release of pyrethroid is had dash adjustment effect by wax, realize the pyrethroid steady release under normal temperature condition, the rate of release of pyrethroid can be reduced simultaneously, when needing to reduce pyrethroid rate of release, as for high insecticidal activity or the pyrethroid relatively with higher vapor pressure, wax has played reduction rate of release, extend the effect of use time. But, for the pyrethroid that insecticidal activity is not high or vapour pressure is relatively low, rate of release decline can affect expelling worm effect, when adopting fan airstream to drive, can pass through to improve rotation speed of the fan, improve pyrethroid rate of release, but when natural hanging, then be difficult to accomplish. Based on this problem, the present inventor further study show that, pyrethroid, wax, carrier compositions basis, add a certain proportion of low voc solvent can not reduce release stationarity premise under, improve pyrethroid rate of release.Based on this discovery, compositions of the present invention can pass through to change the ratio of wax and low voc solvent Relative Quasi pyrethrin, reaches to regulate the effect of pyrethroid rate of release.
According to " in GB18582-2008 indoor decorating and refurnishing materials interior wall coating limits of harmful substances " national standard, the definition of VOC (VOC) is: under 101.3KPa normal pressure, any initial boiling point organic compound less than or equal to 250 DEG C, low voc solvent of the present invention is under 101.3KPa normal pressure, the initial boiling point organic solvent more than 250 DEG C. Low voc solvent of the present invention is high due to boiling point, and volatility is low, substantially non-volatile at ambient temperature or evaporation rate is very slow, therefore in use can be maintained on carrier and play the effect regulating pyrethroid rate of release. Described low voc solvent is selected from alkane solvent, can list ExxsolD130 (ExxonMobil Chemical, boiling point 279-313 DEG C), G250H (Total SA, boiling point 256-329 DEG C), G270H (Total SA, boiling point 260-291 DEG C), G3H (Total SA, boiling point 278-322 DEG C), carbon number are the alkane solvent etc. of more than 15; It is selected from esters solvent, isopropyl myristate, isopropyl palmitate etc. can be listed.
In release control compositions of the present invention, when the content Relative Quasi pyrethrin of wax is too high (as more than 100%), " parcel " of pyrethroid is acted on big, it is difficult to required rate of release, when the content Relative Quasi pyrethrin of wax is too low (as lower than 1%), being difficult to reach to realize the effect that pyrethroid steadily discharges, when needs add low voc solvent, its consumption is 20%-200% relative to the consumption of wax is applicable. Therefore, in every 100 weight portion pyrethroids, containing 2-60 weight portion wax, 0.4-120 weight portion low voc solvent, the ratio after its optimization is every 100 weight portion pyrethroids, containing 4-40 weight portion wax, 0.8-80 weight portion low voc solvent.
The effect of carrier of the present invention is in that to provide for medicament to keep fixation, to material and shape, there is no particular limitation, preferably big with air contact area material, such as short texture, the material of good permeability, it is beneficial to release and the diffusion of pyrethroid, support shapes can be lamellar, rugosity, netted, honeycomb, spongy, carrier medium is selected from inorganic or organic moulding material, inorganic material includes but not limited to pottery, glass fibre, wire netting, organic material material includes but not limited to synthetic resin (polyethylene, polypropylene, polystyrene, polyacrylonitrile, polyester, polyamide, polrvinyl chloride, ABS resin), Plant fiber's class (wood fiber, cotton, fiber crops, cocoanut fiber etc.) and be Raw material processing with Plant fiber paper, animal fiber class (Pilus Caprae seu Ovis, silkworm silk etc.), preferred material is synthetic resin, Plant fiber and the paper being Raw material processing with Plant fiber.
Pyrethroid release control compositions of the present invention can be prepared by the following method:
By the pyrethroid of described weight percent hundred, wax, or pyrethroid, wax, low voc solvent are with appropriate low boiling point solvent, such as ethanol, D25 (Total SA, boiling point 143��163 DEG C), D30 (ExxonMobil Chemical, boiling point 141��159 DEG C), heating for dissolving under 40��80 DEG C of conditions, it is configured to solution, described carrier is immersed in above-mentioned solution, or solution adopts the mode appendix such as dropping, spraying, printing coating on carrier. The carrier of appendix medicinal liquid is dried in the air at room temperature and blows 4-12 hour, make low boiling point solvent substantially be evaporated completely, obtain pyrethroid release control compositions.
Pyrethroid release control compositions of the present invention can realize pyrethroid under room temperature mode and steadily discharge to air, reaches to kill the good result of insect. Room temperature mode includes hanging under normal temperature condition or blows to carrier by fan airstream and accelerate the release of pyrethroid, the mode of pyrethroid release is driven by fan airstream, situation about can list, as being suspended on domestic electric fan mouth or air-conditioner air outlet, is placed on small electric fan air outlet etc. Field of employment is not particularly limited, can be used for the places such as room, wardrobe, tent, park, for instance in room, kill mosquito, fly, dust mite, in wardrobe, prevent and treat the garment type insects such as casemaking clothes moth, lepismae saccharinae, attagenus piceus. Killed object includes the insect that above-mentioned place is perched, especially the flying pest such as mosquito, fly.
Detailed description of the invention
Form below by way of concrete preferred embodiment binding tests example explains in detail technical scheme and effect, but the present invention is not limited to below example.
Embodiment 1
A kind of pyrethroid release control compositions, comprises: transfluthrin 100 weight portion; Paraffin 2 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 20g transfluthrin, 0.4g paraffin, 79.6gD30 mixing, under 50 DEG C of conditions, heating makes wax dissolve completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 1min and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, be released control composition 1.
Embodiment 2
A kind of pyrethroid release control compositions, comprises: transfluthrin 100 weight portion; Paraffin 60 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 20g transfluthrin, 12g paraffin, 68gD30 mixing, under 60 DEG C of conditions, heating makes wax dissolve completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 30s and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air at normal temperature condition and blow 8h, be released control composition 2.
Embodiment 3
A kind of pyrethroid release control compositions, comprises: transfluthrin 100 weight portion; Brazil wax 30 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 20g transfluthrin, 6g Brazil wax, 74gD30 mixing, under 60 DEG C of conditions, heating makes wax dissolve completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 1min and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, be released control composition 3.
Embodiment 4
A kind of pyrethroid release control compositions, comprises: transfluthrin 100 weight portion; Paraffin 60 weight portion; Solvent G20H120 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 20g transfluthrin, 12g paraffin, 24gG20H, 44gD30 mixing, under 60 DEG C of conditions, heating makes wax dissolve completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 1min and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, be released control composition 4.
Embodiment 5
A kind of pyrethroid release control compositions, comprises: etrafluorine ethofenprox 100 weight portion;Glyceryl monostearate 30 weight portion; Isopropyl myristate 50 weight portion; And honeycomb cardboard carrier.
Preparation method: by 20g etrafluorine ethofenprox, 6g glyceryl monostearate, 10g isopropyl myristate, the mixing of 64g ethanol, under 50 DEG C of conditions, heating makes wax dissolve completely, 1g medicinal liquid is uniformly dripped the rectangle honeycomb cardboard at 70mm �� 50mm �� 5mm, dry in the air under normal temperature condition and blow 8h, be released control composition 5.
Embodiment 6
A kind of pyrethroid release control compositions, comprises: empenthrin 100 weight portion; Palmityl alcohol 20 weight portion; And burlap carrier
Preparation method: by 20g empenthrin, 4g palmityl alcohol, the mixing of 76g ethanol, under 50 DEG C of conditions, heating makes palmityl alcohol dissolve completely, 1g medicinal liquid is uniformly dripped on the square burlap of 70mm �� 70mm, dry in the air under normal temperature condition and blow 8h, be released control composition 6.
Comparative example 1
By 20g transfluthrin, 80gD30 mixing, stirring and dissolving obtains transfluthrin medicinal liquid completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 1min and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, obtain Comparative composition 1.
Comparative example 2
Comparative composition, comprises: transfluthrin 100 weight portion; PVP K30 30 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 10g transfluthrin, 3g PVP K30, the mixing of 37g ethanol, stirring and dissolving obtains transfluthrin medicinal liquid completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 1min and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, obtain Comparative composition 2.
Comparative example 3
Comparative composition, comprises: transfluthrin 100 weight portion; Paraffin 0.5 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 20g transfluthrin, 0.1g paraffin, 79.9gD30 mixing, under 40 DEG C of conditions, heating makes wax dissolving obtain transfluthrin medicinal liquid completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 1min and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, obtain Comparative composition 3.
Comparative example 4
Comparative composition, comprises: transfluthrin 100 weight portion; Paraffin 100 weight portion; And polyester fiber screen cloth carrier.
Preparation method: by 20g transfluthrin, 20g paraffin, 60gD80 mixing, under 80 DEG C of conditions, heating makes wax dissolving obtain transfluthrin medicinal liquid completely, the square polyester fiber screen cloth of 65mm �� 65mm �� 2mm is put into after medicinal liquid soaks 30s and take out, unnecessary medicinal liquid is got rid of, make the medicinal liquid Weight control of immersion mesh sheet at about 1g, dry in the air under normal temperature condition and blow 8h, obtain Comparative composition 4.
Comparative example 5
By 20g etrafluorine ethofenprox, the mixing of 80g ethanol, stirring and dissolving is complete, 1g medicinal liquid uniformly drips the rectangle honeycomb cardboard at 70mm �� 50mm �� 5mm, dries in the air and blow 8h, obtain Comparative composition 5 under normal temperature condition.
Comparative example 6
10g empenthrin, 40g ethanol are hybridly prepared into solution, 1g medicinal liquid are uniformly dripped on the square burlap of 70mm �� 70mm, dry in the air under normal temperature condition and blow 8h, obtain Comparative composition 6.
Test case 1
By sample hanging prepared in above-described embodiment 1,5,6 and comparative example 1,2,3,4 at 28 �� 1 DEG C, in the room of relative humidity 60% �� 10%, keep air charge rate 50m3/hr, continue hanging 40 days, test sample drug effect when 0,10,20,30,40 days respectively.
Efficacy testing method:
With reference to GB/T13917.5-2009 method of testing, in the clear glass square chest of 70cm �� 70cm �� 70cm, discharge 50 Culex quinquefasciatus or housefly, after examination worm activity is normal, little goalkeeper's sample be suspended on glass square chest central from bottom surface 40cm, close whole glass square box device, and timing immediately, every 2min checks down and out examination borer population, terminates test after 40min, calculating the KT50 time according to record result, test result is in Table 1.
The efficacy testing of the sample prepared in table 1 embodiment 1,5,6 and comparative example 1,2,5,6
From table 1 result, in embodiment 1,5,6, sample is within 0 to 40 day time, compare sample in comparative example 1,2,5,6, efficacy testing KT50 value is more steady, show that the release of pyrethroid is more steady, avoid sample in comparative example the use initial stage and latter stage the too big problem of drug effect difference, it is possible to realize stable, long-acting expelling worm effect.
Test case 2
The sample prepared in above-described embodiment 2,3,4 and comparative example 1,2 being placed on 2.5W small fan dead ahead, adjusts the distance of sample and fan, making sample present position wind speed is 0.5m/s (being measured by air speed measuring apparatus). Ambient temperature is maintained at 28 �� 1 DEG C, relative humidity 60%, continuance test 15 days, tests sample drug effect when 0,5,10,15 days respectively.
Efficacy testing method:
With reference to 4.3 parts in GB/T13917.8-1992, in the clear glass room of 3.3m �� 3.3m �� 2.8m, discharge 100 Culex quinquefasciatus, after examination worm activity is normal, sample is suspended on glass room central authorities, overhead 1.2m place, hangs a 2.5W small fan in sample levels direction, adjusting small fan distance, making sample present position wind speed is 0.5m/s (being measured by air speed measuring apparatus). Experimenter leaves scene, fastens door timing immediately, and every 5min checks down and out examination borer population, terminates after 1h, calculates the KT50 time according to record result, and test result is in Table 2.
The efficacy testing of the sample prepared in table 2 embodiment 2,3,4 and comparative example 1,2,3,4
From table 2 result, in embodiment 2,3,4, sample is within 0 to 15 day time, compare sample in comparative example 1-3, efficacy testing KT50 value is clearly more steady, show that the release of pyrethroid is more steady, avoid sample in comparative example 1-3 the use initial stage and latter stage the too big problem of drug effect difference, it is possible to realize stable, long-acting expelling worm effect. In embodiment 2,3, sample is by changing the relative amount of wax, can adjust pyrethroid rate of release, and in embodiment 4, sample is by adding low volatility G20H solvent, it is possible to keeping on the basis of drug effect stationarity, promote insecticidal effect. In comparative example 3, in Comparative composition, wax phase is too low to pyrethroid ratio, without significantly steady release control effect, and wax phase is too high to pyrethroid ratio in Comparative composition in comparative example 4, causes that pyrethroid rate of release is too slow, have impact on anthelminthic effect.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, therefore it is every without departing from technical solution of the present invention content, according to any simple modification, equivalent variations and modification that above example is made by the technical spirit of the present invention, all still fall within the scope of technical solution of the present invention.
Claims (10)
1. a pyrethroid release control compositions, it is characterised in that: it comprises pyrethroid, wax and carrier, and its ratio is every 100 weight portion pyrethroids, containing 2-60 weight portion wax; Described pyrethroid is one or both in etrafluorine ethofenprox, transfluthrin, seven fluorine methothrin, dimefluthrin, metofluthrin, empenthrin, and it is 25 DEG C of vapour pressure >=1 �� 10-6Pa; Described wax is for any one in the higher alkane of solid-state, higher alcohol, higher fatty acids or high-grade aliphatic ester or the mixture more than both under room temperature; Described compositions, under normal temperature condition, kills insect for space.
2. pyrethroid release control compositions according to claim 1, it is characterised in that: in described compositions, every 100 weight portion pyrethroids, containing 4-40 weight portion wax.
3. pyrethroid release control compositions according to claim 1 and 2, it is characterized in that: described compositions further comprises: the low voc solvent of 0.4-120 weight portion, described low voc solvent is under 101.3KPa normal pressure, the initial boiling point alkanes more than 250 DEG C or esters solvent.
4. pyrethroid release control compositions according to claim 3, it is characterised in that: the content of described low voc solvent is 0.8-80 weight portion.
5. pyrethroid release control compositions according to claim 1, it is characterised in that:
Described higher alkane is selected from the alkane of carbon number 20 to 60;
Described higher alcohol is selected from the high alcohol of carbon number 14 to 40;
Described higher fatty acids is selected from the higher fatty acids of carbon number 12 to 40;
Described high-grade aliphatic ester under the room temperature that the higher fatty acids of carbon number 12 to 40 is formed for the ester type compound of solid-state.
6. pyrethroid release control compositions according to claim 5, it is characterized in that: the ester that described high-grade aliphatic ester is formed selected from the higher fatty acids of carbon number 12 to 40 and the high alcohol of carbon number 14 to 40, and the glyceride of the higher fatty acids of carbon number 12 to 40, glycol ester, propylene glycol ester.
7. pyrethroid release control compositions according to claim 1, it is characterised in that: described wax, selected from natural or synthetic wax, comprises paraffin, microwax, Brazil wax, candelilla wax, Cera Flava, Chinese wax, spermaceti, lanocerin.
8. pyrethroid release control compositions according to claim 1, it is characterised in that: described carrier medium is synthetic resin, Plant fiber or the paper being Raw material processing with Plant fiber.
9. pyrethroid release control compositions according to claim 8, it is characterised in that: described synthetic resin comprises polyethylene, polypropylene, polystyrene, polyacrylonitrile, polyester, polyamide, polrvinyl chloride, ABS resin; Described Plant fiber comprises wood pulp cellulose, straw pulp fiber, cotton, fiber crops, cocoanut fiber.
10. pyrethroid release control compositions according to claim 1, it is characterised in that: described carrier is lamellar, rugosity, netted, honeycomb or spongy.
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| WO2017098356A1 (en) * | 2015-12-09 | 2017-06-15 | Nek Chemicals Limited | Pesticide ointment and pasty pesticide applicator |
| CN106993627B (en) * | 2016-01-26 | 2019-11-08 | 成都彩虹电器（集团）股份有限公司 | One kind is from volatile-type mosquito-repellent incense liquid and preparation method thereof |
| CN107212017A (en) * | 2017-04-28 | 2017-09-29 | 重庆熵成生物科技有限公司 | A kind of aqueous mosquito-repellent incense liquid and preparation method thereof that volatilizees certainly |
| JP7219000B2 (en) * | 2017-04-28 | 2023-02-07 | アース製薬株式会社 | Method for promoting volatilization of pyrethroid compound and volatilization accelerator for pyrethroid compound |
| CN109874809B (en) * | 2019-03-15 | 2021-05-04 | 杨青菊 | Afforestation trunk expelling parasite medicine package |
| CN111802403A (en) * | 2019-04-12 | 2020-10-23 | 杭州家得好日用品有限公司 | Deinsectization composition and deinsectization method |
| CN113854285B (en) * | 2021-10-25 | 2023-03-31 | 成都彩虹电器（集团）股份有限公司 | Mosquito-repelling volatile core and preparation method thereof |
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| GB2354771A (en) * | 1999-10-01 | 2001-04-04 | Mcbride Ltd Robert | Bactericide combinations in detergents |
| EP1576150A4 (en) * | 2002-10-16 | 2006-05-03 | Univ Texas | Methods and compositions for increasing the efficacy of biologically-active ingredients |
| CN1582656B (en) * | 2004-05-31 | 2012-12-26 | 何增荣 | Casing style electric heating mosquito expelling sheets and their preparation |
| ES2952649T3 (en) * | 2011-10-04 | 2023-11-02 | 0903608 B C Ltd | Formulations for pest control and methods of manufacture and use thereof |
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