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(12) Patent Application Publication (10) Pub. No.: US 2010/0288795 A1 Lortz Et Al

(12) Patent Application Publication (10) Pub. No.: US 2010/0288795 A1 Lortz Et Al

US 2010O288795A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2010/0288795 A1 LOrtz et al. (43) Pub. Date: Nov. 18, 2010

(54) SILICON DIOXIDE DISPERSION (30) Foreign Application Priority Data (75) Inventors: Wolfgang Lortz, Waechtersbach Jan. 31, 2008 (DE) ...... 102O08OO6883.7 (DE); Jochen Scheffler, Alzenau (DE); Gabriele Perlet, Publication Classification Grosskrotzenburg (DE) (51) Int. Cl. Correspondence Address: AOIN 25/04 (2006.01) OBLON, SPIVAK, MCCLELLAND MAIER & AOIN 25/06 (2006.01) NEUSTADT, L.L.P. AOIP 7/02 (2006.01) 194O DUKE STREET AOIP 7/04 (2006.01) ALEXANDRIA, VA 22314 (US) B65D 83/14 (2006.01) (73) Assignee: EVONIK DEGUSSA GmbH, Essen (DE) (52) U.S. Cl...... 222/394: 514/770 (21) Appl. No.: 12/863,096 (57) ABSTRACT (22) PCT Filed: Dec. 30, 2008 Dispersion comprising hydrophobic pyrogenically prepared (86). PCT No.: PCT/EP2008/068344 silicon dioxide, and at least one additive which pro motes the dispersion and, as additional component, at least S371 (c)(1), one and/or . The dispersion can be (2), (4) Date: Jul. 15, 2010 canned in spray cans and used as insecticide. US 2010/0288795 A1 Nov. 18, 2010

SILICON DOXDE DISPERSION 0011. In addition, during storage, an approximately 40% larger storage space has to be taken into account. 0012. Furthermore, with an air-comprising dispersion, it is 0001. The invention relates to a silicon dioxide dispersion, not possible to achieve a homogeneous bubble-free coverage to a process for the preparation thereof and to the use thereof. of surfaces to be treated. 0002 Pulverulent hydrophobic silica is used to combat (0013 DE 10 2004 021532 describes a dispersion which, Sucking insects, the application taking place by means of in addition to water, comprises 0.5 to 20% by weight of dusting (DE 3835592). hydrophobic silica, 0.01 to 10% by weight of a gelling or 0003 Disadvantageously, dust development is such that viscosity-increasing additive, 0.1 to 1% by weight of a pre this method of insect control finds little acceptance. 0004. The aqueous dispersions likewise described in DE servative and 0 to 1% by weight of a surface-active substance. 3835592, which consist of a hydrophobic silica and water, do 0014. This dispersion can be used as insecticide against not exhibit satisfactory stability. mites and other insects. 0005 U.S. Pat. No. 5,830,512 describes a dispersion in 0015. It is successfully used in spacious animal houses and which satisfactory stability is achieved by addition of hydro on large Surfaces, it being possible to use appropriately large philic Substances, such as, for example, silicas. However, the caliber sprayers (such as garden sprayers) for the spraying. active hydrophobic component is through this diluted by a 0016. When used in the field of pets, where the area to be hydrophilic substance. Furthermore, only a very low stability treated is rather Small, large-caliber sprayers. Such as, for of the dispersion, from hours to a few days, is achieved. example, garden sprayers, cannot be used. 0006 EP 1250 048 describes stabilizing the dispersion of 0017. In addition, pump spray bottles are not suitable hydrophobic silicon dioxide through gelling additives, such because the necessary spraying pressure of more than 3 bar as, for example, Xanthan gum, alginates or neutral usually cannot be achieved. Accordingly, a good spray mist ized carboxyvinyl polymers, mixtures of these additives also cannot be achieved and accordingly also a uniform covering being possible. of the cage area to be sprayed/treated cannot be achieved. 0007. These gelling additives bring about, by interaction 0018. It is known to spray a pet cage area with a dispersion with the hydrophobic SiO particles and the incorporated air, sold under the name "Decimite Aerosol'. a marked structural viscosity which is exhibited when apply 0019. This dispersion consists of an aqueous dispersion of ing by spraying. Thus, during the spraying process, the vis a few percent of hydrophilic silica. This dispersion has the cosity of the dispersion is relatively low at the shear forces disadvantage that it takes too long to dry. Furthermore, it has acting on it. After the dispersion drops impact the Surface to an excessively high viscosity and also excessively poor spray be coated, the Viscosity again increases strongly, in order to formation. avoid dripping/running off from in particular vertical Sur 0020. Furthermore, because of the water content of the faces. dispersion, the spray can has to be lacquered on the inside. 0008. According to EP 1250.048, in addition to the hydro 0021. The object was accordingly to prepare a dispersion phobic SiO particles to be dispersed, large amounts of air are with an insecticidal action which can be satisfactorily sprayed incorporated. With the known dispersion processes, this can on Small Surfaces and also can quickly develop its action. not be avoided without the use of wetting surfactants and 0022. A subject-matter of the invention is a dispersion antifoaming agents. Thus, in Example 1, a density of only 0.6 comprising hydrophobic pyrogenically prepared silicon g/ml is specified, which means that approximately 40% of the dioxide, alcohol and at least one additive which promotes the Volume consists of air. dispersing. 0009. In order to achieve a satisfactory activity, a mini mumweight has to be applied to the Surfaces to be sprayed. If, 0023. Use may be made, as hydrophobic pyrogenically per spraying operation, only approximately 60% of the Vol prepared silicon dioxide, of Aerosil R. R805, Aerosil R. R974, ume of the spraying appliances can be used, this represents a Aerosil(R) R202, Aerosil(R) R812, Aerosil(R) R812S and Aero significant reduction in the effectiveness. SilR) R8200. 0010 Disadvantageously, the transportation, packaging 0024. Use may in particular be made of Aerosil R. R812S. and waste disposal costs of the required packaging are higher 0025. The physicochemical characteristics of these pyro by this proportion. genically prepared silicon dioxides are listed in Table 1.

TABLE 1.

Test method

Aerosil (R Aerosil (R Aerosil (R Aerosil (R Aerosil (R Aerosil (R) R974 R2O2 R805 R812 R812S R82OO Behaviour with regard to water hydrophobic Appearance loose white powder BET surface m°g 1702O 100 - 20 150 - 25 260 30 220 25 16O 25 Mean size of the ill 12 14 12 7 7 primary particles Tamped density approximate value

Normal product gll 50 50 50 50 50 140 Compacted product gll 90 (additive “V) US 2010/0288795 A1 Nov. 18, 2010

TABLE 1-continued

Test method

Aerosil (R Aerosil (R Aerosil (R Aerosil (R Aerosil (R Aerosil (R) R974 R2O2 R8OS R812 R812S R82OO Loss on drying % by weight sO.S sO.S sO.S sO.S sO.S sO.S (2 hours at 105° C.) on leaving the Supplier Loss on ignition'' % by weight s2 4-6 5-7 1.0-2.5 1.5-3.0 (2 hours at 1000° C.) C content % by weight 0.7-1.3 3.S.-S.O 4.5-6.5 2.0-3.0 3.0-4.O 2.0-4.0 pH 5) 10) 3.7-4.7 4-6 3.5-5.5 5.5-7.5 5.5-7.5 e5.0 SiO,8) % by weight 299.8 a 99.8 a 99.8 a 99.8 a 99.8 a 99.8 Al-O. % by weight sO.OS sO.OS sO.OS sO.OS sO.OS sO.OS FeO, % by weight sO.O1 sO.O1 sO.O1 sO.O1 sO.O1 sO.O1 TiO,8) % by weight sO.O3 sO.O3 sO.O3 sO.O3 sO.O3 sO.O3 HC II) % by weight s:0.1 sO.O2S s).O2S seO.O2S s).O2S s().O2S following DIN 66131 2 following DIN ISO 787/11, JIS K 5101/18 (not sieved) 3) following DIN ISO 7872, ASTMD 280, JIS K 5101:21 4) following DIN 55921, ASTMD 1208, JIS K 5101.23 5) following DIN ISO 7879, ASTMD 1208, JIS K 5101/24 based on the substance dried at 105° C. for 2 hours based on the substance ignited at 1000°C, for 2 hours 'in waterimethanol = 1:1 'HCl content is constituent of the loss on ignition 12) v. product is supplied in bags of 15 kg net

0026. The following can be used as alcohol: , step is the trimethylsilyl group transferred. Trimethylsilyl ethanol, propanol, isopropanol, 1-butanol, 2-methyl-1-pro groups not reacted with SiOH Surface groups are themselves panol, 2-butanol and 2-methyl-2-propanol. inactivated by dimerization. 0027. Use may in particular be made of low-boiling-point 0034. The following silanes can be used as additional alcohols, such as, for example, ethanol. silanes: 0028. In order to make possible good dispersing, it is, 0035) a) organosilanes of the (RO)Si(CH) and however, necessary to add an additive which promotes the (RO)SiOCH) type dispersion, which additive covers remaining areas or new 0036 R-alkyl, such as, for example, methyl, ethyl, areas, not surface-modified, produced by the dispersing. The n-propyl, isopropyl or butyl, addition of hexamethyldisilaZane (HMDS) has proven to be 0037 n=1-20 very advantageous for this. (0038 b) organosilanes of the R',(RO), Si(C.H.) and 0029. The HMDS results, by this additional silanization, R',(RO), Si(CH2) type in a virtually perfect Surface modification, through which a 0039) R-alkyl, such as, for example, methyl, ethyl, considerably lower viscosity is achieved. If appropriate, any n-propyl, isopropyl or butyl excess HMDS can be converted by alcoholysis to give trim 0040 R-alkyl, such as, for example, methyl, ethyl, ethylethoxysilane, trimethylsilanol or hexamethyldisiloxane, n-propyl, isopropyl or butyl and NH. 0041) R'-cycloalkyl 0030 Use may furthermore be made, as additive which 0042. n=1-20 promotes the dispersion, of other silanes which are likewise in a position to react with Si-OH groups still present on the 0044 x=1,2 Aerosil Surface. 0045 y=1,2 0031. In principle, any silane is suitable which exhibits a 0046 c) haloorganosilanes of the X-Si(CH) and satisfactory hydrophobic group but which in this connection X-Si(CH2) type does not introduce, through the silanization, any accessible 0047 X-Cl, Br additional silanol group. This can be achieved by having 0048 n=1-20 present only one group in the silane molecule capable of 0049 d) haloorganosilanes of the X(R)Si(CH) reacting with the SiOH group of the surface, thus an ROH or and X(R)Si(CH) type X group. Alternatively, the hydrophobic “residue” of the 0050 X-C1, Br silane molecule can have Such a strong sterically shielding 0051 R-alkyl, such as, for example, methyl, ethyl, effect that an unreacted SiOH group of the silane molecule is n-propyl, isopropyl or butyl not accessible. 0052 R'-cycloalkyl 0032. Furthermore, the silane used should exhibit a high 0053 n=1-20 reaction rate. A satisfactory reaction rate may possibly be 0054 e) haloorganosilanes of the X(R).Si(CH) achieved by an increase in temperature. and X(R) Si (CH2) type 0033 Silazanes, and here in particular hexamethyldisila 0.055 X-C1, Br Zane, have, due to the basic nature of the silaZane group, a 0056 R'-alkyl, such as, for example, methyl, ethyl, high affinity for SiOH surface groups. Only in the subsequent n-propyl, isopropyl or butyl US 2010/0288795 A1 Nov. 18, 2010

0.057 R'-cycloalkyl 0.058 n=1-20 0059 f) organosilanes of the (RO), Si(CH) R' type CH3CH3 0060 R=alkyl, such as methyl, ethyl or propyl Y/ 0061 m=0, 1-20 H.Q. Si --O1 YOS-CH3Si 0062) R'-methyl, aryl (for example —CHs, substi HC1 loss O1 NCH, tuted phenyl radicals) / V 0063 - C.F. OCF CHF CF, —CF 1a, CH3 CH3 - O CF CHF, -CH=CH, 0.064 g) organosilanes of the (R"), (RO), Si(CH.) R' 0092 (m) polysiloxanes or silicone oils of the type type 0065 R"-alkyl x+y=3 (0.066 =cycloalkyl X=1.2 0067 y=1,2 0068 m=0,1 to 20 Y-O- –o o –o -Y 0069 R'-methyl, aryl (for example —CHs, substi R iii. R' pi tuted phenyl radicals) 0070 CF, OCF CHF CF, CoF is: - O CF CHF, -CH=CH, 0.093 m=0, 1, 2, 3, ... oo 0071 h) haloorganosilanes of the X-Si(CH) R' 0094 n=0, 1, 2, 3, ... OO type 0.095 u=0, 1, 2, 3, ... oo 0072 X—C1, Br Y=CH3, H, CH2n-1-20 0073 m=0,1-20 0074 R'-methyl, aryl (for example —CHs, substi Y—Si (CH), Si(CH)2H Si (CH),OH, Si(CH3)2 tuted phenyl radicals) (OCH) Si (CH3)2(CH2) n=1-20 0.096 R-alkyl, such as CH, in which n=1 to 20, 0075) CF, —OCF CHF CF, —CF, aryl, such as phenyl and substituted phenyl radicals, H - O CF CHF, -CH=CH, 0097 R-alkyl, such as C.H., in which n=1 to 20, 0076 i) haloorganosilanes of the (R)XSi(CH) R' aryl. Such as phenyl and Substituted phenyl radicals, H. type 0.098 R"-alkyl, such as C.H., in which n=1 to 20, 0.077 X—C1, Br aryl. Such as phenyl and Substituted phenyl radicals, H 0078 R-alkyl, such as methyl, ethyl or propyl 0099 R"-alkyl, such as C.H., in which n=1 to 20, 0079 m=0,1-20 aryl. Such as phenyl and Substituted phenyl radicals, H 0080 R'-methyl, aryl (e.g. —CHs, substituted phe 0100 Hydrophobic pyrogenically prepared silicon diox nyl radicals) ides can be very well dispersed in alcohols since these are wetted with alcohols. 0081 CF, —OCF CHF CF, —CF, 0101. Furthermore, rapid drying of the sprayed surfaces/ -O-CF CHF, -CH=CH, cage areas is achieved by the use of in particular highly I0082 j) haloorganosilanes of the (R).XSi(CH) R' volatile alcohols, such as ethanol or isopropanol. The lethal type action also starts more quickly through this. 0083 X-Cl, Br 0102) Rheology-modifying additives can be added for sat 0084 R-alkyl isfactory adhesion of the Aerosil to the Surfaces/cage areas to 0085 m=0,1-20 be covered and in order to prevent the sprayed-on dispersion I0086) R'-methyl, aryl (e.g. —CHs, substituted phe from flowing off. Such additives can be alcohol-soluble nyl radicals) modified celluloses. 0103 Hydroxypropylcellulose (HPC) can in particular be I0087 - C.F. - OCF CHF CF, CoFls. used for this since it is satisfactorily soluble in alcohols. -O-CF CHF, -CH=CH, 0104. The hydroxypropylcellulose can exhibit a molecu I0088 k) silazanes of the lar weight of less than 1 000 000. 0105. In a preferred embodiment of the invention, the hydroxypropylcellulose can exhibit a molecular weight of RRSi-N-SiRR' 5000 to 500 000, in particular 80 000+20 000. H 0106. It can be seen from the examples that the amounts of the rheology-modifying agent used also affects the activity of the dispersion. This amount used can be limited by the prod type uct of the average molecular weight of the hydroxypropylcel I0089 R-alkyl, aryl lulose and the concentration in % by weight. It can be less 0090 R-alkyl, aryl than 250 000. 0091 l) cyclic polysiloxanes of the D3, D4 and D5 type, 0107 HPC with an excessively high molecular weight of D3, D4 and D5 being understood as meaning cyclic more than 1 000 000 results in a high structural viscosity polysiloxanes with 3, 4 or 5 units of the —O—Si(CH) which not only leads to a poor ability to be sprayed but also - type. E.g. octamethylcyclotetrasiloxane-D4 contributes to a reduction in the mortality. US 2010/0288795 A1 Nov. 18, 2010

0108. With the dispersion according to the invention, it is 0129 I possible, by the use of alcohol, to dispense with an addition of O130 pyrethrin II additives for the preservation of the hydroxypropylcellulose 0131) employed. (0132) ryania 0109. In a particularly preferred embodiment of the inven 0133) sabadilla tion, the dispersion according to the invention can be com 0134) posed of hydrophobic pyrogenically prepared silicon diox 0135) ide, alcohol and an additive which promotes the dispersion. If 0.136 appropriate, the preferred dispersion can additionally com 0.137 benzofuranyl methylcarbamate insecticides prise a rheology-modifying additive. 0.138 benfuracarb 0110. The dispersion according to the invention can be 0.139 used as insecticide, in particular for combating mites. 0140 0111. On using at a high relative humidity, the activity 0141 decarbofuran declines, however, because, for example, the mites then can 0142 furathiocarb not be satisfactorily desiccated. 0143 dimethylcarbamate insecticides 0112 The known chemically active , such as 0144) dimetan insecticides and in particular (pesticides for com (0145 bating mites and ticks), are certainly highly active, even at 0.146 hyduincarb high air humidities; unfortunately, relatively high residues of 0147 the pesticides can also be observed however, e.g. in uses in 0148 Oxime carbamate insecticides henhouses against the poultry red mite in the chicken and 0149 alanycarb chicken eggs. With Smaller birds in particular, the high con O150 centration of necessarily used can also result 0151 aldoxycarb directly in intolerance. 0152 0113. An essential protective function of the surface of the O153 butoxycarboxim insects, for example of the mites, is weakened, if not removed, 0154) by the defatting or dewaxing action of the hydrophobic silica, O155 nitrilacarb so that, in the following stage, organic pesticide active Sub 0156 stances can more easily and more quickly penetrate into the O157 taZimcarb insect, in order to develop their action even at high air humidi 0158 thiocarboxime ties. Since the protecting fatty or waxy layer has now been 0159) thiodicarb removed, the damaging or lethal action of the organic pesti (0160 cide active Substances can already be achieved with consid (0161 phenyl methylcarbamate insecticides erably lower concentrations. (0162 allyxycarb 0114. The use of the active substance combination accord (0163 ing to the invention with markedly reduced organic pesticide (0164 bufencarb concentration also results in a considerable reduction in the (0165 butacarb residue formation, e.g. with uses in henhouses against the (0166 carbanolate poultry red mite in the chicken and in the egg. (0167 cloethocarb 0115 Since the active substance combination according to (0168 dicresyl the invention comprises an active pesticide component with a (0169 dioxacarb damaging or lethal effect, it is also possible to combat harmful 0170 EMPC organisms which are resistant to desiccation, be it through a 0171 considerably denser surface than with mites or through the 0172 fenethacarb sheer size of the harmful organism, in which the Surface to 0173 Volume ratio is markedly smaller in comparison with the (0174 isoprocarb relatively small mites. Desiccation accordingly cannot be 0175 achieved or cannot be quickly achieved. (0176) 0116. The following active Substance groups can in par 0.177 mexacarbate ticular be used as insecticides or acaricides, some exhibiting 0178 promacyl both insecticidal and acaricidal properties. 0179 0180 0117 Organic Insecticides 0181 trimethacarb 0118 botanical insecticides 0182 XMC 0119 0183) xylylcarb 0120 0184 diamide insecticides 0121 d- 0185 0122) nicotine 0186. (0123 0187. dinitrophenol insecticides 0.124 cinerins 0188 dinex 0.125 cinerin I (0189 dinoprop 0.126 cinerin II 0190. dinosam (O127 jasmolin I (0191) DNOC I0128 jasmolin II 0.192 fluorine insecticides US 2010/0288795 A1 Nov. 18, 2010

0.193) sulfluramid 0257 0.194 formamidine insecticides 0258 pyridylmethylamine insecticides 0195 0259 (0196) 0260 0197) 0261 (0198 0262 0199. insect growth regulators 0263 organochlorine insecticides (0200 chitin synthesis inhibitors 0264 bromo-DDT 0201 bistrifluron 0265 camphechlor (0202 0266 DDT 0203 chlorfluaZuron 0267 0204 0268 ethyl-DDD 0205 0269. HCH 0206 flucycloxuron 0270 gamma-HCH 0207 0271 0208 hexaflumuron (0272 0209 0273 pe ntachlorophenol 0210 novaluron 0274 TDE 0211 noviflumuron 0275 cyclodiene insecticides 0212 penfluron 0276 0213 teflubenzuron (0277 bromocyclen 0214 triflumuron 0278 chlorbicyclen 0215 juvenile hormone mimics 0279 chlordan 0216 epolfenonane 0280 0217 (0281 0218 0282 dilor 0219) kinoprene (0283 0220 0284 0221) 0285) HEOD 0222 triprene 0286 0223 juvenile hormones 0287 HHDN 0224 juvenile hormone I 0288 0225 juvenile hormone II 0289 isodrin 0226 juvenile hormone III 0290 kelevan 0227 moulting hormone agonists 0291 0228 chromafenozide 0292 organophosphorus insecticides 0229 halofenozide 0293 insecticides 0230 methoxyfenozide 0294 bromfenVinfos 0231 0295) 0232 moulting hormones 0296 crotoxyphos 0233 C-ecdysone 0297 0234 ecdysterone 0298 0235 moulting inhibitors 0299 dimethylvinphos 0236 diofenolan 0300 fospirate 0237) precocenes 0301 heptenophos 0238 precocene I 0302) methocrotophos 0239) precocene II O303 0240 precocene III 0304 0241 unclassified insect growth regulators 0305 0242 dicyclanil (0306 naftalofos 0243 analogue insecticides 0307 0244 bensultap 0308 propaphos 0245 cartap 0309 TEPP 0246 thiocyclam 0310 0247 thiosultap 0311 insecticides 0248 nicotinoid insecticides 0312 dioxabenzofos 0249 flonicamid 0313 fosmethilan 0250 nitroguanidine insecticides 0314 0251 0315 aliphatic organothiophosphate insecticides 0252) 0316 acethion 0253 imidacloprid 0317 amiton 0254 0318 cadusafos 0255 nitromethylene insecticides 0319 0256 nitenpyram 0320 chlormephos US 2010/0288795 A1 Nov. 18, 2010

0321 0380 0322 demephion-O 0381 isoxazole organothiophosphate insecti 0323 demephion-S cides 0324 0382 0325 demeton-O 0383 ZolaprofoS 0326 demeton-S 0384 pyrazolopyrimidine organothiophos 0327 demeton-methyl phate insecticides 0328 demeton-O-methyl 0385 chlorpraZophos 0329 demeton-S-methyl 0386 pyrazophos 0330 demeton-S-methylsulphon 0387 pyridine organothiophosphate insecti 0331 cides 0332 0388 0333 0389) chlorpyrifos-methyl 0334 IPSP 0390 pyrimidine organothiophosphate insecti 0335) isothioate cides 0336 0391 butathiofos 0337 methacrifos 0392 0338 Oxydemeton-methyl 0393 etrimfos 0339 OxydeprofoS 0394 lirimfos 0340 oxydisulfoton 0395 pirimiphos-ethyl 0341 0396 pirimiphos-methyl 0342 0397) primidophos 0343 0398 pyrimitate 0344 thiometon 0399 (0345 aliphatic amide organothiophosphate 04.00 quinoxaline organothiophosphate insecti insecticides cides 0346) amidithion 04.01 0347 cyanthoate 0402 quinalphos-methyl 0348 0403 thiadiazole organothiophosphate insecti 0349 ethoate-methyl cides 0350 04.04 athidathion 0351 mecarbam 0405 lythidathion O352 0406 0353 0407 prothidathion 0354) Sophamide 04.08 triazole organothiophosphate insecticides 0355 vamidothion 04.09 isaZofoS 0356 Oxime organothiophosphate insecticides 0410 triaZophos 0357 chlorphoxim 0411 phenyl organothiophosphate insecticides 0358 0412 aZothoate 0359 phoxim-methyl 0413 bromophos 0360 heterocyclic organothiophosphate insecti 0414 bromophos-ethyl cides 0415 0361 0416 chlorthiophos 0362 0417 0363 coumithoate 0418 cythioate 0364 0419 dicapthon 0365 0420 dichlofenthion 0366 CaZO 0421 etaphos 0367 morphothion 0422 famphur 0368 0423 fenchlorphos 0369 pyraclofoS 0424 0370 pyridaphenthion 0425 fensulfothion 0371 quinothion 0426 0372 benzothiopyran organothiophosphate 0427 fenthion-ethyl insecticides 0428 heterophos 0373 dithicrofos 0429 jodfenphos 0374 thicrofos 0430 mesulfenfos 0375 benzotriazine organothiophosphate 0431 insecticides 0432 parathion-methyl 0376 azinphos-ethyl 0433 phenkapton 0377 azinphos-methyl 0434 phosnichlor 0378 isoindole organothiophosphate insecti 0435 cides 0436 prothiofos 0379 dialifos 0437 SulprofoS US 2010/0288795 A1 Nov. 18, 2010

0438 temephos 0501) cycloprothrin 0439 trichlorimetaphos-3 0502 0440 trifenofos 0503 beta-cyfluthrin 0441 phosphonate insecticides 0504 0442 butonate 0505 gamma-cyhalothrin 0443 trichlorfon 0506 lambda-cyhalothrin 0444 phosphonothioate insecticides 0507 0445 mecarphon 0508 alpha-cypermethrin 0446 phenyl ethylphosphonothioate insecticides 0509 beta-cypermethrin 0447 0510 theta-cypermethrin 0448 trichloronat 0511 Zeta-cypermethrin 0449 phenyl phenylphosphonothioate insecti 0512 cides 0513 0450 cyanofenphos 0514 dimefluthrin 0451 EPN 0515 dimethrin 0452 0516 0453 phosphoramidate insecticides 0517 fenfluthrin 0454) crufomate 0518 fenpirithrin 0455 0519 0456 fosthietan 0520 0457 mephosfolan 0521 0458 0522 flucythrinate 0459 pirimetaphos 0523 fluvalinate 0460) phosphoramidothioate insecticides 0524 tau-fluvalinate 0461) 0525) furethrin 0462 isocarbophos 0526 0463 isofenphos 0527 0464 0528 0465 propetamphos 0529 biopermethrin 0466 phosphorodiamide insecticides 0530 transpermethrin 0467 0531 0468 maZidox 0532 0469 0533 profluthrin 0470 0534 pyresmethrin 0471 oxadiazine insecticides 0535 0472 0536 bioresmethrin 0473 oxadiazolone insecticides 0537 cismethrin 0474) metoxadiaZone 0538 0475 phthalimide insecticides 0539 terallethrin 0476 dialifos (0540 0477 phosmet (0541 0478 tetramethrin (0542 0479 pyrazole insecticides (0543 ether insecticides 0480 chlorantraniliprole (0544 etofemprox 0481 dimetilan 0545 flufenprox 0482 (0546 halfenprox 0483) tolfenpyrad 0547 protrifenbute 0484 phenylpyrazole insecticides (0548 0485 acetoprole 0549 pyrimidinamine insecticides 0486 ethiprole 0550 flufenerim 0487 0551 pyrimidifen 0488 pyraclofoS 0552) Pyrrole insecticides 0489 pyrafluprole 0553 chlorfeinapyr 0490 0554 tetramic acid insecticides 0491 vaniliprole 0555 spirotetramat 0492 pyrethroid insecticides 0556) tetronic acid insecticides 0493 pyrethroid ester insecticides 0557 spiromesi?en 0494 0558 thiazole insecticides 0495 allethrin 0559 clothianidin 0496 0560 thiamethoxam 0497 barthrin 0561 thiazolidine insecticides 0498 0562 taZimcarb 0499 bioethanomethrin 0563 thiacloprid 0500 cyclethrin 0564 thiourea insecticides US 2010/0288795 A1 Nov. 18, 2010

0565 diafenthiuron 0629 carbamate acaricides 0566 urea insecticides 0630 benomy1 0567 flucofuron 0631 carbanolate 0568 Sulcofuron 0632 carbaryl 0569 See also chitin synthesis inhibitors 0633 carbofuran 0570 antibiotic insecticides 0634) methiocarb 0571 allosamidin 0635 metolcarb 0572 thuringiensin 0636 promacyl 0573 macrocyclic lactone insecticides 0637 propoXur 0574 avermectin insecticides 0638 Oxime carbamate acaricides 0575 abamectin 0639 aldicarb 0576 doramectin 0640 butocarboxim 0577 emamectin 0641 oxamyl 0578 eprinomectin 0642 thiocarboxime 0579 selamectin 0643 thiofanox 0580 milbemycin insecticides 0644 coarbazate acaricides 0581 lepimectin 0645 bifenazate 0582 milbemectin 0646 dinitrophenolacaricides 0583 milbemycin oxime (0647 binapacryl 0584 moxidectin 0648 dinex 0585 spinosyn insecticides 0649) dinobuton 0586 spinetoram 0650 dinocap 0587 0651 dinocap-4 0588 unclassified insecticides 0652 dinocap-6 0589 closantel 0653 dinocton 0590 copper naphthenate 0654 dinopenton 0591 crotamiton 0655 dinosulfon 0592 EXD 0656 dinoterbon 0593 fenazaflor 0657 DNOC 0594 fenoxacrim 0658 formamidine acaricides 0595 0659 amitraz 0596) isoprothiolane 0660 chlordimeform 0597 malonoben 0661 chloromebuform 0598 0.662 formetanate 0599 nifluridide 0663 formparanate 0600 pyridaben 0664 mite growth regulators 0601 pyridalyl 0665 clofentezine 0602 pyrifluquinazon 0666 cyromazine 0603 rafoxanide 0667 diflovidazin 0604 triarathene 0668 dofenapyn 0605 triazamate 0669 fluaZuron 0606 Organic Acaricides 0670) flubenzimine 0607 bridged diphenylacaricides 0671 flucycloxuron 0608 aZobenzene 0672 flufenoxuron 0609 benzoximate 0673) hexythiazox 0610 0674) organochlorine acaricides 0611 bromopropylate 0675 bromocyclen 0612 chlorbenside 0676 camphechlor 0613 chlorfenethol 0677) DDT 0.614 chlorfenson 0678 dienochlor 0615 chlorfensulphide 0679) endosulfan 0616 chlorobenzilate 0680 lindane 0617 chloropropylate 0681 organophosphorus acaricides 0618 cyflumetofen 0682 organophosphate acaricides 0619 DDT 0683 chlorfenvinphos 0620 0684 crotoxyphos 0621 diphenyl sulfone 0685 dichlorvos 0622 dofenapyn 0686) heptenophos 0623 fenson 0687 mevinphos 0624 fentrifanil 0688 monocrotophos 0625 fluorbenside 0689 naled 0626 proclonol 0690 TEPP 0627 0691 tetrachlorvinphos (0628 tetrasul 0692 organothiophosphate acaricides US 2010/0288795 A1 NOV 18, 2010

0693 amidithion 0756) organotin acaricides 0694 amiton 0757 aZocyclotin 0695 azinphos-ethyl 0758 cyhexatin 0696 azinphos-methyl 0759) fenbutatin oxide 0697 azothoate 0760 phenylsulphamide acaricides 0698 benoxafos 0761 dichlofluanid 0699 bromophos 0762 phthalimide acaricides 0700 bromophos-ethyl 0763 dialifos 0701 carbophenothion 0764 phosmet 0702 chlorpyrifos 0765 pyrazole acaricides 0703 chlorthiophos 0766 cyenopyrafen 0704 coumaphos 0767 fenpyroximate 0705 cyanthoate 0768 tebufenpyrad 0706 demeton 0769 phenylpyrazole acaricides 0707 demeton-O (0770 acetoprole 0708 demeton-S 0771) fipronil 0709) demeton-methyl 0772 vaniliprole 0710 demeton-O-methyl (0773) pyrethroid acaricides 07.11 demeton-S-methyl 0774 pyrethroid ester acaricides 0712 demeton-S-methylsulphon 0775 acrinathrin 0713 dialifos 0776 bifenthrin 0714) diazinon 0777 cyhalothrin 0715 dimethoate 0778 cypermethrin 0716 dioxathion (0779 alpha-cypermethrin 0717 disulfoton 0780 fenpropathrin 0718 endothion 0781 fenvalerate 0719 ethion 0782 flucythrinate 0720 ethoate-methyl 0783 0721 formothion 0784 fluvalinate 0722 malathion 0785 tau-fluvalinate 0723 mecarbam 0786) permethrin 0724 methacrifos 0787 pyrethroid ether acaricides 0725 omethoate 0788 halfenprox 0726 OxydeprofoS 0789 pyrimidinamine acaricides 0727 oxydisulfoton 0790 pyrimidifen 0728 parathion 0791) pyrrole acaricides 0729 phenkapton 0792 chlorfeinapyr 0730 phorate 0793 quinoxaline acaricides 0794 chinomethionat 0731 phosalone thioquinox 0732 phosmet 0795 0733 phoxim 0796 Sulphite ester acaricides pirimiphos-methyl 0797 propargite 0734 0798 tetronic acid acaricides 0735 prothidathion 0799) spirodiclofen 0736 prothoate 0800 tetrazine acaricides 0737 pyrimitate 0801) clofentezine 0738 quinallphos 0802 diflovidazin 0739 quintiofoS 0803 thiazolidine acaricides 0740 sophamide 0804 flubenzimine 0741 sulfotep 0805 hexythiazox 0742 thiometon 0806 thiocarbamate acaricides 0743 triaZophos 0807 fenothiocarb 0744) trifenofos 0808 thiourea acaricides 0745 vamidothion 0809 chloromethiuron 0746 phosphonate acaricides 0810 diafenthiuron 0747 trichlorfon 0811 antibiotic acaricides 0748 phosphoramidothioate acaricides 0812 nikkomycins 0749 isocarbophos 0813 thuringiensin 0750 methamidophos 0814 macrocyclic lactone acaricides 0751) propetamphos 0815 tetranactin 0752 phosphorodiamide acaricides 0816 avermectin acaricides 0753 dimefox 0817 abamectin 0754) mipafox 0818 doramectin 0755 Schradan 0819 eprinomectin US 2010/0288795 A1 Nov. 18, 2010 10

0820 0850. Use may be made, as propellent, of propane, butane 0821 selamectin or a mixture of propane and butane with a proportion of 0822 milbemycin acaricides propellent gas of 10 to 80%. 0823 milbemectin 0851. Nitrogen or nitrous oxide can be used as propellent 0824 milbemycin oxime gaS. 0825 moxidectin 0852. The pressure necessary for the spraying can be pro 0826 unclassified acaricides duced by a pump system. 0827 acequinocyl 0828 amidoflumet 1. Dispersion comprising hydrophobic pyrogenically pre 0829 arsenous oxide pared silicon dioxide, alcohol and at least one additive which 0830 closantel promotes the dispersion and, as additional component, at 0831 crotamiton least one insecticide and/or acaricide. 0832 2. Dispersion according to claim 1, characterized in that it 0833 etoxazole comprises a rheology-promoting agent. 0834 fenazaflor 3. Dispersion according to claim 2, characterized in that 0835 fenazaquin hydroxypropylcellulose is used as rheology-promoting 0836 fluacrypyrim agent. 0837 fluenetil 4. Use of the dispersion according to claim 1 as acaricide 0838 and insecticide. 0839 MNAF 0840 nifluridide 5. Spray can comprising the dispersion according to claim 0841 pyridaben 1. 0842) sulfiram 6. Spray can according to claim 5, additionally comprising 0843 sulfluramid a propellent. 0844 7. Spray can according to claim 6, characterized in that 0845 triarathene propellents, such as propane, butane or a mixture of propane 0846. The dispersions according to the invention can be and butane, are used with a proportion of propellent gas of satisfactorily sprayed with propellent gas sprays. 10-80%. 0847. An additional advantage of the alcoholic dispersion 8. Spray can according to claim 6, characterized in that according to the invention is caused by the fact that the alco nitrogen is used as propellent gas. hol does not have a corrosive effect on the metals used in 9. Spray can according to claim 6, characterized in that spray cans. Internal lacquering of the cans can accordingly be nitrous oxide is used as propellent gas. dispensed with. 10. Spray can according to claim 5, characterized in that the 0848. An additional subject-matter of the invention is a pressure necessary for the spraying is produced by a pump spray can which comprises the dispersion according to the system. invention. 0849. This spray can additionally comprise a propellent.

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