Patent EA-003033-B1 (EA)
Title: Light extruded composition containing a light, extrudable, ceramic carrier, methods for their use, and processes for their preparation
Inventor: TAKAYANAGI NORIKAZU
IPC: A01N25/08
Filed: 2000-02-07
Abstract: 1. A light, extruded composition which comprises at least one agricultural compound; a light, extrudable, ceramic carrier; and at least one surface active agent. 2. The composition according to claim 1 which further comprises a mineral carrier and a binder. 3. The composition according to claim 2 which comprises on a weight basis about 0.5% to 75% of one or more agricultural compound (s); about 15% to 90% of the light, extrudable, ceramic carrier; about 2% to 20% of one or more surface active agent (s); about 1% to 30% of the mineral carrier; and about 0.1% to 10% of the binder. 4. The composition according to claim 1 wherein the light, extrudable, ceramic carrier has a density of about 0. 5 g/cm3 to 0. 8 g/cm<3>. 5. The composition according to claim 1 wherein the light, extrudable, ceramic carrier is prepared from a composition which comprises on a weight basis about 50% to 60% silicon (IV) oxide, about 25% to 45% aluminum oxide, about 0.1% to 6% calcium oxide, about 0.1% to 3% iron (III) oxide and about 0.1% to 2% titanium (IV) oxide. 6. The composition according to claim 1 wherein the light, extrudable, ceramic carrier has an average particle size of about 100 to 250 mkm. 7. The composition according to claim 1 wherein the light, extrudable, ceramic carrier has a pressure strength greater than about 150 kg/cm<2>. 8. The composition according to claim 1 wherein the agricultural compound is selected from the group consisting of a herbicide, an insecticide, an acaricide, a nematicide, a fungicide, a molluscicide, a plant growth regulator, a safener, an algicide and a mildewicide and mixtures thereof. 9. The composition according to claim 8 wherein the herbicide is selected from the group consisting of 2,4-D, 2,4-D-2-ethylhexyl, 2,4-D-isobutyl, 2,4-D-butyl, 2,4-D-calcium, 2,4-D-dimethylammonium, 2,4-D-diolamine, 2,4-D-isooctyl, 2,4-D-isopropyl, 2,4-D-potassium, 2,4-Dsodium, 2,4-D-trolamine, azimsulfuron, bensulfuronmethyl, bentazone, benzofenap, bifenox, bromobutide, butachlor, cafenstrole, chlormethoxynil, chlornitrofen, chlorthiamid, cinmethylin, cinosulfuron, clomeprop, cyclosulfamuron, cyclosulfamuron sodium salt, cyhalofopbutyl, dimepiperate, dimethametryn, dithiopyr, dymron, esprocarb, ethoxysulfuron, etobenzanid, fentrazamid, imazosulfuron, MCPA, MCPA-butyl, MCPA-calcium, MCPAdimethylammonium, MCPA-isooctyl, MCPA-potassium, MCPAsodium, MCPB, MCPB-ethyl, MCPB-sodium, MCPCA, mefenacet, molinate, naproanilide, oxadiazon, oxaziclomefone, pendimethalin, pentoxazone, piperophos, pretilachlor, prometryn, propanil, pyrazolate, pyrazosulfuron-ethyl, pyrazoxyfen, pyributicarb, simetryn, swep, thenylchlor and thiobencarb and mixtures thereof; the insecticide is selected from the group consisting of acephate, alpha-cypermethrin, benfuracarb, bensultap, BPMC, buprofezin, carbaryl, carbofuran, carbosulfan, cartap, chlorfenapyr, chlorfenvinphos, chlorpyrifosmethyl, chlorpyrifos, cyanofenphos, cycloprothrin, diazinon, dimethoate, dioxabenzofos, disulfoton, EPN, ethofenprox, fenitrothion, fenthion, furathiocarb, isoprocarb, methyl isothiocyanate, isoxathion, malathion, methomyl, metolcarb, monocrotophos, nitenpyram, phenthoate, pirimiphos-ethyl, pirimiphos-methyl, propaphos, propoxur, pyraclofos, pyridaphenthion, quinalphos, tetrachlorvinphos, thiocyclam, thiodicarb, trichlorphon, vamidothion, XMC, xylylcarb, and 1- [1- (p- chlorophenyl)-2-fluoro-4- (4-fluoro-3-phenoxyphenyl)-2- butenyl] cyclopropane (R, S)- (Z), and mixtures thereof; and the fungicide is selected from the group consisting of benomyl, captan, diclomezine, edifenphos, fenoxanil, ferimzone, flutolanil, thalide, iprobenfos, iprodione, isoprothiolane, kasugamycin, kasugamycin hydrochloride hydrate, mepronil, metalaxyl, methominostrobin, oxolinic acid, pencycuron, probenazole, pyroquilon, tecloftalam, thiophanate-methyl, TPN, tricyclazole, triflumizole and validamycin and mixtures thereof. 10. The composition according to claim 1 wherein the agricultural compound is selected from the group consisting of cyclosulfamuron, cafenstrole and dymron and mixtures thereof. 11. The composition according to claim 1 wherein the surface active agent is selected from the group consisting of an alkyl benzene sulfonate, an alkyl naphthalene sulfonate, a lignosulfonate, a naphthalene sulfonate-formaldehyde condensate, an alkyl naphthalene sulfonate-formaldehyde condensate, a polyoxyethylene alkyl ether, a polyoxyethylene alkyl ether sulfate, a polyoxyethylene alkyl ether phosphate, a polyoxyethylene alkyl aryl ether, a polyoxyethylene alkyl aryl ether sulfate, a polyoxyethylene alkyl aryl ether phosphate, a polycarboxylate, a sodium tripolyphosphate, a hexameta phosphate, a phenol sulfonate, an alkyl sulfate, a dialkyl sulfosuccinate, an alkyl ether sulfate and an acetylene glycol and mixtures thereof. 12. The composition according to claim 11 wherein the surface active agent is selected from the group consisting of an alkyl naphthalene sulfonate, a polycarboxylate, a naphthalene sulfonate-formaldehyde condensate and a dialkyl sulfosuccinate and mixtures thereof. 13. The composition according to claim 12 wherein the surface active agent comprises a mixture of a sodium alkyl naphthalene sulfonate, a polycarboxylate, a sodium naphthalene sulfonate-formaldehyde condensate and a sodium alkyl sulfonated alkylate. 14. The composition according to claim 2 wherein the mineral carrier is selected from the group consisting of calcium bentonite, sodium bentonite, montmorillonite, kaolin clay, pyrophyllite clay, sericite clay, diatomaceous earth and talc and mixtures thereof. 15. The composition according to claim 14 wherein the mineral carrier is sodium bentonite. 16. The composition according to claim 2 wherein the binder is selected from the group consisting of sodium carboxymethyl cellulose, hydroxy methyl cellulose, methyl cellulose, ethyl cellulose, dextrin, starch, poly (vinyl alcohol), sodium alginate, sodium polyacrylate, xanthan gum, welan gum and gum arabic and mixtures thereof. 17. The composition according to claim 16 wherein the binder is sodium carboxymethyl cellulose. 18. The composition according to claim 2 which comprises on a weight basis about 0.2% to 7% cyclosulfamuron; about 10% to 20% cafenstrole; about 25% to 35% dymron; about 25% to 45% of a light, extrudable, ceramic carrier which: (1) is prepared from a composition which comprises on a weight basis about 50% to 60% silicon (IV) oxide, about 25% to 45% aluminum oxide, about 0.1% to 6% calcium oxide, about 0.1% to 3% iron (III) oxide and about 0.1% to 2% titanium (IV) oxide, (2) has an average particle size of about 100 to 250 mkm, and (3) has a pressure strength greater than about 150 kg/cm<2>; about 4% to 8% of a sodium alkyl naphthalene sulfonate; about 0.5% to 2% of a mixture of a polycarboxylate and a sodium naphthalene sulfonate-formaldehyde condensate; about 1% to 3% of a sodium alkyl sulfonated alkylate; about 3% to 8% sodium bentonite; and about 1% to 3 sodium carboxymethyl cellulose. 19. A method for applying at least one agricultural compound to the water of paddy fields which comprises applying to the water surface of the paddy fields a light, extruded composition comprising at least one agricultural compound; a light, extrudable, ceramic carrier; and at least one surface active agent. 20. The method according to claim 19 wherein the light, extruded composition further comprises a mineral carrier and a binder. 21. The composition according to claim 19 wherein the light, extrudable, ceramic carrier has a density of about 0.5 g/cm<3> to 0.8 g/cm<3>. 22. The method according to claim 19 wherein the light, extrudable, ceramic carrier is prepared from a composition which comprises on a weight basis about 50% to 60% silicon (IV) oxide, about 25% to 45% aluminum oxide, about 0.1% to 6% calcium oxide, about 0.1% to 3% iron (III) oxide and about 0.1% to 2% titanium (IV) oxide. 23. The method according to claim 19 wherein the light, extrudable, ceramic carrier has an average particle size of about 100 to 250 mkm. 24. The method according to claim 19 wherein the light, extrudable, ceramic carrier has a pressure strength greater than about 150 kg/cm<2>. 25. The method according to claim 19 wherein the agricultural compound is selected from the group consisting of a herbicide, an insecticide, an acaricide, a nematicide, a fungicide, a molluscicide, a plant growth regulator, a safener, an algicide and a mildewicide and mixtures thereof. 26. The method according to claim 19 wherein the agricultural compound is selected from the group consisting of cyclosulfamuron, cafenstrole and dymron and mixtures thereof. 27. The method according to claim 20 wherein the surface active agent comprises a mixture of a sodium alkyl naphthalene sulfonate, a polycarboxylate, a sodium naphthalene sulfonate-formaldehyde condensate and a sodium alkyl sulfonated alkylate; the mineral carrier is sodium bentonite; and the binder is sodium carboxymethyl cellulose. 28. The method according to claim 19 wherein the light, extruded composition is packaged in a contained, water-soluble delivery system and the packaged, light, extruded composition is applied to the water surface. 29. The method according to claim 28 wherein the contained, water-soluble delivery system is selected from the group consisting of a water-soluble poly (vinyl alcohol) bag, a water-soluble paper bag and a watersoluble bottle. 30. The method according to claim 19 wherein the light, extruded composition is packaged in an uncontained system and the uncontained, light, extruded composition is applied to the water surface by hand, spoon, aerial or mechanical application. 31. The method according to claim 30 wherein the uncontained system is selected from the group consisting of a bag, a tube and a hopper. 32. A process for the preparation of a light, extruded composition comprising at least one agricultural compound; a light, extrudable, ceramic carrier; and at least one surf