TW201032713A - Aqueous flowable concentrate compositions of a microencapsulated dinitroaniline herbicide - Google Patents
Aqueous flowable concentrate compositions of a microencapsulated dinitroaniline herbicide Download PDFInfo
- Publication number
- TW201032713A TW201032713A TW098143731A TW98143731A TW201032713A TW 201032713 A TW201032713 A TW 201032713A TW 098143731 A TW098143731 A TW 098143731A TW 98143731 A TW98143731 A TW 98143731A TW 201032713 A TW201032713 A TW 201032713A
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- TW
- Taiwan
- Prior art keywords
- composition
- salt
- glyphosate
- microcapsules
- herbicide
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 137
- 239000004009 herbicide Substances 0.000 title claims abstract description 83
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 64
- LZGUHMNOBNWABZ-UHFFFAOYSA-N n-nitro-n-phenylnitramide Chemical compound [O-][N+](=O)N([N+]([O-])=O)C1=CC=CC=C1 LZGUHMNOBNWABZ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000004546 suspension concentrate Substances 0.000 title abstract description 9
- 239000003094 microcapsule Substances 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 43
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical class OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011162 core material Substances 0.000 claims abstract description 32
- 239000008346 aqueous phase Substances 0.000 claims abstract description 22
- 239000004094 surface-active agent Substances 0.000 claims abstract description 18
- 230000009969 flowable effect Effects 0.000 claims abstract description 12
- 125000000129 anionic group Chemical group 0.000 claims abstract description 11
- 239000005591 Pendimethalin Substances 0.000 claims abstract description 5
- CHIFOSRWCNZCFN-UHFFFAOYSA-N pendimethalin Chemical compound CCC(CC)NC1=C([N+]([O-])=O)C=C(C)C(C)=C1[N+]([O-])=O CHIFOSRWCNZCFN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 32
- 238000000576 coating method Methods 0.000 claims description 32
- -1 polysulfonamides Polymers 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 15
- 239000005562 Glyphosate Substances 0.000 claims description 13
- 229940097068 glyphosate Drugs 0.000 claims description 13
- 239000000725 suspension Substances 0.000 claims description 13
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 12
- 239000007900 aqueous suspension Substances 0.000 claims description 12
- 229920000768 polyamine Polymers 0.000 claims description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical class OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 11
- 150000001412 amines Chemical class 0.000 claims description 9
- 239000012141 concentrate Substances 0.000 claims description 9
- 230000035784 germination Effects 0.000 claims description 9
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 8
- 239000003945 anionic surfactant Substances 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical class N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 6
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 6
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 6
- 229920005610 lignin Polymers 0.000 claims description 6
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 6
- 150000002823 nitrates Chemical class 0.000 claims description 6
- 229920002396 Polyurea Polymers 0.000 claims description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 229920001732 Lignosulfonate Polymers 0.000 claims description 4
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- STGGGMRYUUNYNC-UHFFFAOYSA-N furan-2-carbaldehyde;urea Chemical compound NC(N)=O.O=CC1=CC=CO1 STGGGMRYUUNYNC-UHFFFAOYSA-N 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- 239000000052 vinegar Substances 0.000 claims description 3
- 235000021419 vinegar Nutrition 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical class [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 229920006318 anionic polymer Polymers 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 235000011148 calcium chloride Nutrition 0.000 claims description 2
- 238000007865 diluting Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims 2
- WDCYWAQPCXBPJA-UHFFFAOYSA-N 1,3-dinitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1 WDCYWAQPCXBPJA-UHFFFAOYSA-N 0.000 claims 1
- 239000002028 Biomass Substances 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 239000011149 active material Substances 0.000 claims 1
- 239000003513 alkali Substances 0.000 claims 1
- 125000002947 alkylene group Chemical group 0.000 claims 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims 1
- 239000004312 hexamethylene tetramine Substances 0.000 claims 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 229910000027 potassium carbonate Inorganic materials 0.000 claims 1
- 235000011181 potassium carbonates Nutrition 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 1
- 235000017550 sodium carbonate Nutrition 0.000 claims 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims 1
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 26
- 239000000575 pesticide Substances 0.000 description 24
- 239000002245 particle Substances 0.000 description 21
- 239000012948 isocyanate Substances 0.000 description 17
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- 150000002513 isocyanates Chemical class 0.000 description 15
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 11
- 238000009472 formulation Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- 239000002562 thickening agent Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 125000005442 diisocyanate group Chemical group 0.000 description 8
- 239000011734 sodium Substances 0.000 description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 7
- 241000209140 Triticum Species 0.000 description 7
- 235000021307 Triticum Nutrition 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 229910052708 sodium Inorganic materials 0.000 description 7
- 244000025254 Cannabis sativa Species 0.000 description 6
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 6
- 241000209094 Oryza Species 0.000 description 6
- 150000003863 ammonium salts Chemical class 0.000 description 6
- ZEKANFGSDXODPD-UHFFFAOYSA-N glyphosate-isopropylammonium Chemical compound CC(C)N.OC(=O)CNCP(O)(O)=O ZEKANFGSDXODPD-UHFFFAOYSA-N 0.000 description 6
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexane-1,6-diamine Chemical compound NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 6
- 238000002386 leaching Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- 238000004062 sedimentation Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000012695 Interfacial polymerization Methods 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 5
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- 239000011591 potassium Substances 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 4
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- 235000003351 Brassica cretica Nutrition 0.000 description 4
- 235000003343 Brassica rupestris Nutrition 0.000 description 4
- OFDYMSKSGFSLLM-UHFFFAOYSA-N Dinitramine Chemical compound CCN(CC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C(N)=C1[N+]([O-])=O OFDYMSKSGFSLLM-UHFFFAOYSA-N 0.000 description 4
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- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 4
- 239000002775 capsule Substances 0.000 description 4
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- 150000002148 esters Chemical class 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 235000010460 mustard Nutrition 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- YWICANUUQPYHOW-UHFFFAOYSA-M sodium;2-(phosphonomethylamino)acetate Chemical compound [Na+].OP(O)(=O)CNCC([O-])=O YWICANUUQPYHOW-UHFFFAOYSA-M 0.000 description 4
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- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- NAGWPMWBTLVULC-UHFFFAOYSA-M sodium;2-(4-methyl-5-oxo-4-propan-2-yl-1h-imidazol-2-yl)quinoline-3-carboxylate Chemical compound [Na+].N1C(=O)C(C(C)C)(C)N=C1C1=NC2=CC=CC=C2C=C1C([O-])=O NAGWPMWBTLVULC-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- PQTBTIFWAXVEPB-UHFFFAOYSA-N sulcotrione Chemical compound ClC1=CC(S(=O)(=O)C)=CC=C1C(=O)C1C(=O)CCCC1=O PQTBTIFWAXVEPB-UHFFFAOYSA-N 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 229960005559 sulforaphane Drugs 0.000 description 1
- 235000015487 sulforaphane Nutrition 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- IUQAXCIUEPFPSF-UHFFFAOYSA-N tembotrione Chemical compound ClC1=C(COCC(F)(F)F)C(S(=O)(=O)C)=CC=C1C(=O)C1C(=O)CCCC1=O IUQAXCIUEPFPSF-UHFFFAOYSA-N 0.000 description 1
- IROINLKCQGIITA-UHFFFAOYSA-N terbutryn Chemical compound CCNC1=NC(NC(C)(C)C)=NC(SC)=N1 IROINLKCQGIITA-UHFFFAOYSA-N 0.000 description 1
- FZXISNSWEXTPMF-UHFFFAOYSA-N terbutylazine Chemical compound CCNC1=NC(Cl)=NC(NC(C)(C)C)=N1 FZXISNSWEXTPMF-UHFFFAOYSA-N 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- RBTVSNLYYIMMKS-UHFFFAOYSA-N tert-butyl 3-aminoazetidine-1-carboxylate;hydrochloride Chemical compound Cl.CC(C)(C)OC(=O)N1CC(N)C1 RBTVSNLYYIMMKS-UHFFFAOYSA-N 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 125000004149 thio group Chemical group *S* 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- IYMLUHWAJFXAQP-UHFFFAOYSA-N topramezone Chemical compound CC1=C(C(=O)C2=C(N(C)N=C2)O)C=CC(S(C)(=O)=O)=C1C1=NOCC1 IYMLUHWAJFXAQP-UHFFFAOYSA-N 0.000 description 1
- WCLDITPGPXSPGV-UHFFFAOYSA-N tricamba Chemical compound COC1=C(Cl)C=C(Cl)C(Cl)=C1C(O)=O WCLDITPGPXSPGV-UHFFFAOYSA-N 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- 244000045561 useful plants Species 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 241000228158 x Triticosecale Species 0.000 description 1
- 235000013618 yogurt Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
- A01N33/18—Nitro compounds
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Description
201032713 六、發明說明: 【發明所屬之技術領域】 本發明係關於一種微膠囊化二硝苯胺除草劑(特定古之 施得圃(pendimethalin))之水性可流動濃縮組合物,其可流 動且具有經改良之儲存穩定性。 【先前技術】 水不溶性農藥通常調 --------〜少叭,具亦 可稱為水懸液。懸浮濃縮液為含有分散於水性介質中之細 粒農藥之水性組合物。該等濃縮液中之農藥濃度通常大於 10 g/Ι且大多為至少50 g/1。懸浮濃縮液具有所期望之可澆 注或泵抽之液體性質,且很容易加水稀釋成所需要之施用 濃度。對照乳化濃縮液而言,該懸浮濃縮液具有無需採用 水不混溶性有機溶劑之新增優點。 一般’與懸浮濃縮液相關之問題為不穩定調配物中所產 生之凝結及結塊,使處理困難且使用上不可靠。該等問題
在低熔點農藥之情況下,諸如二硝笨胺除草劑,呈體A 之,在施得圃(為N-d-乙基丙基)_2,6_二硝基_3,心二/甲基二 =俗名)之情況下極為明顯。與二石肖苯胺除草劑㈣施 得圃)之調配物相關之另—個問題係在由熟化時有形成大 之二硝苯胺除草劑所形成之施得圃會造成二石肖 ^相顆粒之沉降增加W此變得不穩定、處理困難 且在使用上不可靠 液儲在w 硝苯胺除草劑之水性懸浮濃縮 液儲存於两於饥及尤其高於4 變得最為嚴重。 &卜牯該專問碭 144933.doc 201032713 原則上已知,容易自調配物中分離之水不溶性活性組分 之懸浮濃縮⑯之儲存穩定性可藉由活性組分之微膠囊化 (亦即形成調配物)而增加,其中該活性組分係呈包括含活 性組分之核心材才斗&包圍該核心材料之聚合性包衣材料之 微膠囊之形式存在。 US 5,705,174及US 5,910,314描述了藉由聚合性包衣材 料製成膠囊(微膠囊化施得圃)之施得圃顆粒之水性可流動 0 7辰縮組合物,該濃縮組合物進一步包含大量的無機鹽或鹽 混合物。該等組合物係由反應性包衣形成材料及施得圃之 水不溶性溶液分散於該鹽之水溶液中製得。該等組合物顯 不形成大型結晶之傾向減小,因此具有良好之儲存穩定 性。US 5,705,174及1^5,910,314之發明者認為該鹽可降低 施得圃在懸浮液水相中之溶解度,及由此降低或消除施得 圃自懸浮液中結晶之能力。然而,調配物中之大量無機鹽 仍總是無法接受。 φ 【發明内容】 因此’ 一個主題為提供可穩定儲存(甚至在高溫下)之二 硝笨胺除草劑之水性調配物,其具有可接受之黏度,其具 . 有良好或優秀之除草活性且可避免大量無機鹽之需求。 . 令人驚訝地發現,該等及其他目標係藉由文中所定義之 可流動水性濃縮組合物完成。 因此’本發明係關於一種可流動水性濃縮組合物,其包 括: 1. 50至400 gn之呈微谬囊形式之二硝苯胺除草劑,其包 144933.doc 201032713 括含二硝苯胺除草劑(特定言之施得圃)之核心材料及 聚合性包衣材料,其中該微膠囊係呈水性分散液之形 式存在,其包含分散於該分散液之水相中之微膠囊,· Π. 1〇〇至500 g/1之溶於水相中之草甘膦鹽及 111.至少一種陰離子表面活性物質。 令人驚訝地,草甘膦鹽增加微膠囊化二硝苯胺除草劑之 組合物之穩定性,避免二㈣苯胺除草劑自⑽囊浸滤,因 此使包3呈微膠囊形式之二硝苯胺除草劑之水性微膠囊組 絲之#1存穩定性增加。此點令人驚_,因為添加其他農 藥化合物之水可溶性鹽無法增加储存穩定性。因此,本發 明亦有關於一種以草甘鱗鹽於使包含%至彻闕膠囊 (其包括含二硝苯胺除草劑之核心、材料及包圍該核心材料 之聚合性包衣材料)之可流動水性濃縮組合物之儲存穩定 性增加之用途’其中該微膠囊分散於水相中。藉由添加草 甘膦鹽使料敎性增加之作法可至少部分置換通常為了 穩疋微膠囊化二硝苯胺除草劑之調配物時所需之無機鹽。 本發明者認為組合物儲存穩定性之增加歸因於添加草甘鱗 鹽而降低了 :硝苯胺除草劑在水相中之溶解度所致。溶解 度降低會減慢二石肖苯胺可能自微膠囊浸滤接著形成結晶物 質之過程。然而,亦可能係其他因素之作用。 在本發明内容中’術語「可流動」意指組合物為液體, 且例如可洗注或泵抽。通常,根據ASTM D 2196,藉由巧 又《十(Brookfield viscosimeter)可測得組合物在 2〇。〇 1 之黏度為至W_mPa.s,例如1〇至咖,尤其3 144933.doc 201032713 15至 600 mPas。 在本發明内容中,術語「微膠囊」意指顆粒材料,其中 該等顆粒包括核心材料,且被聚合性包衣材料包圍。根據 本發明,該核心材料包含至少一種二硝苯胺除草劑及視需 要選用之其他材料,例如油及/或具有降低之水溶解度之 其他農藥化合物,其於25 °C下之溶解度一般不超過10 g/l,特定言之5 g/Ι或甚至1 (去離子水)。 φ 微膠囊顆粒之粒徑一般不超過40 μιη及較佳不超過30 。所出示粒徑即所謂之D9(r值,必須瞭解其為至少9〇重 量之顆粒具有低於該Dgo值之直徑。較佳而言,該等微膠 囊顆粒具有0.5至20 μιη之平均粒徑(加權平均值,亦稱為
Dm值),尤其為1至1〇 μϊη。較佳而言,至少9〇重量%之微 膠囊顆粒具有0.5至20 μηι之直徑,尤其為1至1〇 μιη之範圍 内。該等微膠囊顆粒之粒徑可藉由常規法測定,諸如光散 射法。 • 合適之二硝苯胺除草劑包括氟草胺(benfluralin)、比達 寧(butralin)、撻乃安(dinitramine)、烯氟靈(ethamuraiin)、 氯氟靈(fluchloralin)、異丙樂靈(is〇pr〇palin)、肉豆蔻醇樂 • 靈(methalpr〇palin)、磺樂靈(nitralin)、安黃靈(oryzalin)、 • 施得圃(Pendimethalin)、氨氟樂靈(pr〇diamine)、環丙氟靈 (profluralinR I樂靈(trifluralin)及其混合物。若核心材料 包含施得圃,亦即二硝苯胺除草劑為施得圃或其與一種或 多種上述二石肖苯胺除草劑之混合物,即可顯示本發明之優 點。具體言之,施得圃為微膠囊或組合物中所包含之唯一 144933.doc 201032713 硝笨胺除草劑或占微膠囊或組合物 除草劑之至少9〇〇/。。 中所包含之二硝苯胺 核心材料進一步可包含油類 例如烴溶劑,諸如芳香
中’核心材料不包含文中所定義之油類, 吕之為植物油之曱酯或 醋。在一個具體實施例 油類’或該油類含量占 核心材料重量之10重量%以下。 該核心材料可進一步包括較佳具有降低之水溶解度之其 他辰藥化合物,具體言之農藥化合物或安全劑,其於25。〇 下之水溶解度一般不超過10 g/1,尤其5 g/1或甚至丄去 離子水),可包含於微膠囊之核心材料中之合適除草劑包 括例如: -氯乙醯胺除草劑,諸如乙草胺(acetochl〇r)、拉草 (alachlor) 、. 丁 基拉草(butachlor)、布坦可 (butenachlor)、異 丁草胺(delachlor)、乙醯曱草胺 (diethatyl)、二曱草胺(dimethachlor)、莫多草 (metolachlor)、莫多草-S(metolachlor-S)、滅草胺 (metazachlor)、普拉草(pretilachlor)、毒草胺 (propachlor)、異丙草胺(propisochlor)、丙炔草胺 (prynachlor)、特 丁草胺(terbuchlor)、尼可 (thenylchlor)、二曱苯草胺(xylachlor)、汰草滅 (dimethenamid)、汰草滅-P(dimethenamid-P), 144933.doc 201032713 -氧乙醯胺除草劑,諸如氟噻草胺(flufenacet)及滅芬草 (mefenacet), -乙醯胺除草劑,諸如大芬滅(diphenamid)、滅落脫 (napropamide)及萘丙胺(naproanilide), -四。坐琳酮除草劑,諸如四。坐醯草胺(fentrazamide),
-芳基脲除草劑,諸如氯溴隆(chlorbromuron)、氣麥隆 (chlorotoluron),枯草隆(chloroxuron)、惡峻隆 (dimefuron)、達有龍(diuron)、橫嗟隆(ethidimuron)、芬 隆(fenuron)、伏草隆(fluometuron)、異丙隆 (isoproturon)、異0坐隆(isuron)、理有龍(linuron)、嗟哇 隆(methabenzthiazuron)、撲奪草(metobromuron)、甲氧 隆(metoxuron)、綠榖隆(monolinuron)、草不隆 (neburon)、環草隆(siduron)、四氟隆(tetrafluron)及丁養 隆(buthiuron), -三唤除草劑,諸如草脫淨(atrazine)、可樂津 (chlorazine)、氰乃淨(cyanazine)、環草津(cyprazine)、 甘草津(eglinazine)、抑草津(ipazine)、滅莠津 (mesoprazine)、環並青津(procyazine)、甘撲津 (proglinazine) 普拔根(propazine)、另丁津 (sebuthylazine)、草滅淨(simazine)、特 丁津 (terbuthylazine)及草達津(trietazine), -三嗓(二)嗣除草劑’諸如安三甲雙酮(ametridione)、阿 米布嗪(amibuzin)、菲殺淨(hexazinone)、丁嗪草酮 (isomethiozin)、滅它通(metamitron)及滅必淨 144933.doc 201032713 (metribuzin), -胺基甲酸苯酯除草劑,諸如甜菜安(desmedipham)、棉 胺寧(phenisopham)、苯敵草(phenmedipham)及笨敵草-乙基(phenmedipham-ethyl), -腈除草劑,諸如除草溴(bromobonil )、溴苯腈 (bromoxynil)、經敵草腈(chloroxynil)、二氯達龍 (dichlobenil)、蛾本尼(iodobonil)及破苯(ioxynil), -甲基硫基三嗪除草劑,諸.如草殺淨(ametryn)、滅蘇民 (aziprotryne)、氰草淨(cyanatryn)、敵草淨(desmetryn)、 異戊乙淨(dimethametryn)、蓋草津(methoprotryne)、撲 .草淨(prometryn)、 西草淨(simetryn)及去草淨 (terbutryn) > -σ荅。秦明除草劑,諸如達草減(norflurazon)、溴莠敏 (brompyrazon)、殺草敏(chloridazon)、草達明 (dimidazon)、二曱健草伏(metflurazon)、氟草敏 (norflurazon)、草0連松(oxapyrazon)及0比噠伏(pydanon), -0比咬叛醯胺除草劑,諸如°比氟草胺(flufenican)、二π比氟 草胺(diflufenican)及。比氟草胺異丙隆(picolinafen)、氟丁 醢草胺(beflubutamid)、氟咬酮(fluridone)、氣η各草酮 (flurochloridone)及吱草嗣(flurtamone), -4-HPPD抑制劑,諸如異惡氟草(isoxaflutole)、曱基磺草 嗣(mesotrione)、泰伯三酿I (tembotrione)、托普銳米宗 (topramezone)及確草酮(sulcotrione), -°比咬除草劑,諸如汰硫草(dithiopyr)或°塞草咬 144933.doc •10· 201032713 (thiazopyr) » 及 -除草劑之安全劑,諸如解草酮(benoxacor)、解毒喧 (cloquintocet)、解草胺腈(cyometrinil)、解草石黃醯胺 (cyprosulfamide)、二氯丙婦胺(dichlormid)、二環農 (dicyclonon)、二錄躐醇 S旨(dietholate)、解草唾 (fenchlorazole)、解草咬(fenclorim)、解草胺 (flurazole)、將草安(fluxofenim)、解草惡。坐 (furilazole)、雙苯惡"坐酸(isoxadifen)、°比唾解草酸 (mefenpyr)、美芬醋(mephenate)、萘二曱酸針 (naphthalic anhydride)、2,2,5-三甲基-3-(二氯乙醯基)-1,3-噁唑啶、4-(二氣乙醯基)-1-氧雜-4-氮雜螺環[4.5]癸 烷及解草腈(oxabetrinil),及其農業上可接受之鹽(其條 件為其具有羧基)、其農業上可接受之衍生物。2,2,5-三 曱基-3-(二氯乙醯基)-1,3-噁唑啶[CAS號52836-31-4]亦 稱為R-29148。4-(二氣乙醯基)-1-氧雜-4-氮雜螺環[4.5] 癸烷[CAS號7 1526-07-03]亦稱為 AD-67及MON 4660。 其他較佳之農藥化合物為彼等氯乙醯胺除草劑、氧乙醯 胺除草劑、及除草劑之安全劑之群。 在一個特別佳之實施例中,二硝苯胺除草劑(特定言之 施得圃)占核心材料之至少80%,尤其為至少90%。在另一 個實施例中,核心材料包含10至90重量%,尤其為30至80 重量%之至少一種二硝苯胺,特定言之施得圃,及10至90 重量%,尤其為20至70重量%之至少一種其他材料,其係 選自油類及具有降低之水溶解度之農藥化合物及其混合 144933.doc -11 - 201032713 物。 在微膠囊中,核心材料係囊封在實質上不溶於水之聚合 性包衣材料内°水不溶性意指該聚合性包衣材料不溶於2口〇 c下之去離子水中或在去離子水中具有至多的之溶解 度。合適包衣材料之實例為聚醯胺類、聚磺醯胺、聚酯、 聚碳酸醋、聚胺基甲酸3旨或聚脲。較佳之包衣材料為^胺 基甲酸酯及最佳為聚脲及其混合物。 微膠囊顆粒t之聚合性包衣材料之含量—般不超過微膠 囊材料(亦即核心、材料與聚合性包衣材料之總和)之30重量 %,以確使顆粒充分釋放活性物。另一方面,聚合性包衣 材料之含量一般占微膠囊材料之至少〇 5%,以確保充分囊 封該核心材料。通常,基於微膠囊顆粒之總重量計,該等 微膠囊顆粒中之聚合性包衣材料之含量為〇5至3〇重量%, 較佳為1至20重量%及特別佳為1.5至1 5重量%。 適用於如本發明之組合物之微膠囊顆粒可按先前技術製 造°較佳而言’其係藉著使合適聚合物包衣形成材料進行 介面聚合處理製得。通常,介面聚合法係在核心材料之水 性油包水乳液或懸浮液中完成’該核心材料包含已溶於其 中之至少一部分聚合物包衣形成材料。在聚合期間,聚人 物自核心材料分凝至介於核心材料與水之間之邊緣介面, 而形成微膠囊包衣。由此可獲得微膠囊材料之水性懸浮 液。 用於介面聚合法之合適包衣形成材料包括特定言之2_咬 3 -組分系統,諸如: 144933.doc 12- 201032713 -多官能異氰酸酯/多官能醇, -多官能異氰酸酯/多官能胺, -多官能異氰酸酯+多官能酸或醯基氯/多官能胺, -多官能酸或醯基氣/多官能醇, -多官能酸或醯基氣/多官能胺, -多官能磺醯氯/聚胺, -脲/甲醛, -三聚氰胺/甲醛及其類似物。 術語「多官能」指明個別組分之每個分子平均具有2個 官能基。微膠囊亦可藉由凝聚技術製得。 用於介面聚合之較佳包衣形成材料包含括特定言之2-或 3 -組分糸統_ ’諸如. -多官能異氰酸酯/多官能醇, -多官能異氰酸酯/多官能胺,及 -多官能異氰酸酯+多官能酸或醯基氣/多官能胺。 適合製得包含農藥化合物之微膠囊之介面聚合處理方法 已在先前技術中揭示,例如3,577,515、US 4,280,833、US 5,049,182 ' US 5,229,122 ' US 5,310,721 ' US 5,705,174 ' US 5,910,314、WO 95/13698、WO 00/10392、WO 01/ 68234、WO 03/099005、EP 619,073 或 EP-A1 1,109,450 > 其内容已完全引用。 在本發明之一個非常佳之實施例中,聚合性包衣材料為 聚脲。一般,使具有至少兩個異氰酸根之多官能異氰酸酯 (=聚異氰酸酯)與具有至少兩個一級胺之多官能胺(=聚胺) 144933.doc -13- 201032713 反應,生成聚脲包衣形成材料。適用之多官能異氰酸酯包 括二-及三異氰酸酯,其中異氰酸根係附接脂系或環脂系 部分(脂系異氰酸酯)或附接芳香系部分(芳香系異氰酸 酯)。合適之脂系二異氰酸酯實例包括四亞曱基二異氰酸 酯、五亞甲基二異氰酸酯及六亞曱基二異氰酸酯,及環脂 系二異氰酸酯,諸如異佛爾酮二異氰酸酯、1,4-雙異氰醯 基環己烷及雙-(4-異氰醯基環己基)曱烷。合適之芳香系異 氰酸酯包括甲苯二異氰酸酯(TDI:2,4-及2,6-異構體之混合 物)、二苯基亞甲基-4,4·-二異氰酸酯(MDI: DESMODUR® © VL, Bayer Corp., Pittsburgh)、聚亞甲基聚苯基聚異氰酸6旨 (MONDUR® MR, Bayer Corp., Pittsburgh)、PAPI® 及 PAPI® 135(Upjohn Co.)、2,4,4'-二笨基醚三異氰酸酯、 3,3’-二甲基-4,4’-二苯基二異氰酸酯、3,3^二曱氧基-4,4’-二苯基二異氰酸酯、1,5-伸萘基二異氰酸酯及4,4',4"-三苯 基甲烷三異氰酸酯。 前面所述之二異氰酸酯之較高碳數寡聚物亦合適,諸如 〇 前面所述之二異氰酸酯之異氰尿酸酯及雙縮脲及其與前面 所述之二異氰酸酯之混合物。 由二異氰酸酯與多元醇(諸如乙二醇、丙三醇及三羥曱 基丙烷)依每莫耳多元醇與對應於各別醇及其與前面所述 之二異氰酸酯之混合物之羥基數之二異氰酸酯莫耳數加成 得到之加合物亦合適。以此方式,由數個分子二異氰酸酯 透過脲烷基鏈結至多元醇,形成高分子量聚異氰酸酯。特 別合適之此類產品,DESMODUR® L(Bayer Corp·, 144933.doc -14- 201032713
Pittsburgh) ’可藉由使3莫耳之曱苯二異氰酸酯與丨莫耳之 2-乙基丙三醇(1,1-二羥甲基丙烷)反應製得。其他合適之 產品可藉由六伸己基二異氰酸酯或異氟爾酮二異氰酸酯與 乙二醇或丙三醇加成獲得。 較佳之聚異氰酸酯為二苯基曱烷_4,4,_二異氰酸酿及二 苯基甲烷-4,4’-二異氰酸酯之較高碳數募聚物(聚亞曱基聚 苯盼異氰酸醋),其較佳具有2.1至2.9之平均官能度及典型 • 具有127至150之異氰酸酯當量重量。 二-及三異氰酸酯,諸如前面提及之彼者可單獨或以兩 種或多種該等異氰酸酯之混合物形式使用。 在本發明之範圍内,咸了解,合適之多官能胺一般為彼 等在分子中包含兩個及多個一級胺基之化合物,其中胺基 係鍵結至脂系或芳香系部分。合適之脂系聚之實例為如下 式之a,co -二胺: H2N_(CH2)n-NH2 φ 其中11為2至6之整數。該等二胺之實例為乙二胺、伸丙基_ 1,3-二胺、四亞曱基二胺、五亞甲基二胺及六亞曱基二 胺。較佳二胺為六亞曱基二胺。 . 其他合適之脂系聚胺為如下式之聚伸乙基亞胺:
. H2N-(CH2-CH2-NH)n-H 其中η為2至5之整數。該等聚伸乙基亞胺之代表性實例為 二伸乙基三胺、三伸乙基四胺、四伸乙基五胺及五伸乙基 六胺。 其他合適之知糸為一氧雜烧-α,ω-二胺,諸如4 9- - 144933.doc -15- 201032713 氧雜十二烷-1,12-二胺,如下式: H2N-(CH2)3〇-(CH2)4〇-(CH2)3-NH2。 合適之芳香系聚胺實例為1,3-伸苯基二胺、2,4-及2,6-曱 苯二胺、4,4’-二胺基二苯基甲烷、i,5_二胺基萘、^3,5-三 胺基苯、2,4,6-三胺基甲苯、1,3,6-三胺基萘、2,4,4,-三胺 基二苯基醚、3,4,5-三胺基-l,2,4-三唑及ι,4,5,8-四胺基蒽 酿。不溶或不可充分溶於水中之其等聚胺可呈其鹽酸鹽形 式使用。 然而’其他合適之聚胺為彼等除了胺基外尚包含續基 (SOsH)或羧基者。該等聚胺實例為込扣伸苯基二胺基磺 酸、4,4’-二胺基二苯基-2-確酸、或二胺基一元羧酸(諸如 鳥胺酸及離胺酸)。 聚胺,諸如彼等前面所提及者可單獨或呈兩種或多種聚 胺之混合物形式使用。 母種互補之包衣形成組分之各別含量將隨其當量重量改 變。一般,較佳為約化學計量,然而其中一種組分亦可採 用過量’特定言之過量之聚異氰酸醋。包衣形成組分之總 量約相當於聚合性包衣形成材料之總量。 如本發明之組合物通常包含至少一種經微膠囊封裝之二 硝苯胺,其總濃度為50至400 gA,較佳為1〇〇至38〇 g/i及 尤其為150至350 g/卜較佳而言,微膠囊材料(聚合性包衣 材料+核心材料)之總濃度為1〇〇至42〇 g/1,較佳為15〇至 400 g/Ι 及尤其為 200 至 380 g/Ι。 本發明之組合物亦包含至少—韃曾 裡皁甘膦鹽。該草甘膦鹽 144933.doc -16- 201032713 之總濃度為1G()至_ g/卜較佳為150至楊_尤其為 200至 450 g/l。 微膠囊、草甘膦鹽及其他活性成分之總濃度通常為15〇 至820 §/1特定為25〇至8〇〇以卜更佳為川〇至78〇^1。 草甘膦鹽(以草甘膦之形式計算)及二确苯胺除草劑之重 量比通常為1:1至10:1 ’較佳為1.2:1至4:1,尤其為1.5:1至 3:1。 φ 較佳而言,草甘膦鹽係選自草甘膦鈉、草甘膦銨、草甘 膦鉀、草甘膦二甘醇銨及草甘膦異丙基銨及其混合物。 具體s之,該草甘膦鹽係選自草甘膦鈉、草甘膦異丙基 銨及其混合物。 如本發明之組合物進一步包含至少一種表面活性物質 (亦稱為表面活性劑)。表面活性物質包括彼等常用於農業 懸浮濃縮液及農藥之水性微膠囊調配物中之乳化劑、保護 性膠體、濕潤劑及分散劑。該等表面活性劑可為非離子 φ 性、陰離子性及/或陽離子性。根據本發明,本發明之組 合物包含視需要可與至少一種非離子表面活性物組合之至 少一種陰離子表面活性物。可應用於本發明之組合物中之 . 合適之表面活性劑揭示於如下文獻中,例如在「麥克柯欽 .之清潔劑及乳化劑年報」(「McCutcheon's Detergents and
Emulsifiers Annual」),MC Publishing Corp.,Ridgewood, NJ, USA 1981; H. Stache,「Tensid-Taschenbuch」,第二 版 ’ C. Hanser,Munich, Vienna, 1981 ; M.與 J. Ash ,「表面 活性劑百科全書」(「Encyclopedia of Surfactants」),第 I- 17 144933.doc 201032713 III卷化學出版社(Chemical Publishing Co.),New York, NY,USA 1980-1981。 基於組合物中之微膠囊計,陰離子表面活性劑之總含量 較佳為0.2至1〇重量% ’尤其為〇 3至5重量%,更佳為〇 5至 3重量% °組合物中之陰離子表面活性劑之總濃度較佳為i 至45 g/卜尤其為2至4〇 g/i及最佳為3至30 g/卜 在本發明之較佳實施例中,組合物包含至少一種陰離子 券聚性或聚合性表面活性物質A,其包含複數個陰離子 基’諸如缓酸根、磺酸根、膦酸根、硫酸根及/或磷酸 根。較佳而言’該等陰離子基係選自磺酸根及羧酸根,且 尤其為確酸根。該等募聚性或聚合性化合物中之陰離子基 可部分或完全中和。合適之反離子為納、卸、鎖、飼及 銨。养聚性或聚合性物質A之實例為乙氧基化木質素磺酸 鹽、木質素磺酸鹽、氧化木質素之鹽、苯乙烯%馬來酸酐 共聚物之鹽、丙烯酸之同聚物、共聚物及三元聚合物之 鹽、芳基磺酸甲醛縮合物之鹽及芳基磺酸曱醛脲縮合物之 鹽(諸如萘磺酸甲醛縮合物、苯酚磺酸甲醛縮合物、甲酚 磺酸曱醛縮合物等)。 組合物中之表面活性物質A之濃度較佳為i至45 g/1,尤 其為2至40 g/Ι及最佳為3至30 g/卜 本發明之一項特別佳實施例係有關一種組合物,其中該 至少之一種陰離子表面活性物質A為陰離子寡聚物或聚合 物,其包含複數個磺酸根。具體言之,該陰離子募聚物或 聚合物係選自氧化之鹼木質素、木質磺酸鹽、木質硫酸 144933.doc -18 · 201032713 i及芳基嶒酸曱醛縮合物之鹽及芳基磺酸曱醛脲縮合物 之鹽及其混合物。 可替代或與寡聚性或聚合性表面活性物質A一起使用之 其他陰離子表面活性物為陰離子表面活性化合物B,其可 選自如T之鹽群:具體言之為納、鉀或銨之烧基確酸鹽、 烷基磷酸鹽、烷氧基化烷基醇與硫酸或磷酸之半酯之鹽、 烷基芳基磺酸鹽、烷基芳基磷酸鹽、烷氧基化烷基苯酚與 0 硫酸或磷酸之半酯之鹽及烷氧基化單-、二-或三苯乙烯基 苯酚與硫酸或磷酸半酯之鹽,及後者之甲醛縮合產物之 鹽。在該等陰離子表面活性劑B中,較佳為彼等如下式工 者:
R-(〇-A)m-〇-x I 其中: R 為烴基’其具有8至40個碳原子且較佳為12至30個碳 原子及視需要具有一個氧原子; 馨 A 分別各為1,2-伸乙基、1,2-伸丙基或1,3-伸丙基,尤其 為1,2 -伸乙基; m 為3至200,較佳為5至100及特別佳為5至50 ;及 X 為S03M或P〇3M2,其中Μ係選自Η、鹼金屬(諸如〖及 Na)、驗土金屬(諸如Ca及Mg)及錢。較佳而言,μ為 驗金屬及尤其為納。 具有8至40個碳原子之合適烴基R之實例為:具有8至 個及較佳為12至30個碳原子之炫基、可經具有4至20個碳 原子之一個或兩個炫基取代之苯基、可經苯氧基取代之苯 I44933.doc -19- 201032713 基其中苯基及/或苯氧基可包含具有4至20個碳原子之烷 基一苯乙烯基苯基等。在本發明之一個較佳實施例中, 式I中之基團R為三苯乙烯基笨基。 若存在陰離子表面活性劑B(具體言之為表面活性化合 物)時’其基於水不溶性材料(亦即組合物中之微膠囊及視 需要L用之其他懸浮農藥材料)之總量計之含量可為1至 重量/〇,尤其為2至2〇重量%及最佳為3至丨5重量%。 如本發明組合物亦可包含非離子表面活性化合物(非離 表面活〖生劑)。較佳之非離子表面活性劑包括如下式η之 中性表面活性化合物,
R'-(0-B)n-〇H II 其中: R為烴基,其具有8至40個及更佳為12至30個碳原子及 視需要具有一個氧原子, B為C2_C4_烷_1,2_二基,諸如1,2-伸乙基、1,2-伸丙基或 1,2-伸丁基或其組合及更佳為丨,2_伸乙基或其與丨,2•伸 丙基之組合,及 η 為3至1〇〇,較佳為4至50及更佳為5至4〇。 合適之烴基R’實例包括尺所提及之基團。在本發明之一 個較佳實施例中,基團R,為經C4_Cu_烷基取代之苯基。 若存在非離子表面活性劑(具體言之為式π之表面活性化 合物)時,其濃度較佳為組合物之5至15〇 “I,尤其為組合 物之10至100 g/1 〇在本發明之一個具體實施例中,組合物 不含非離子表面活性劑或包含低於10 g/丨之非離子表面活 I44933.doc •20- 201032713 性劑’尤其低於5 g/l之非離子表面活性劑β 除了微膠囊、草甘膦鹽及表面活性物質之外,本發明之 組合物亦可包含水溶性無機鹽,其可藉由微膠囊封裝製得 或可後來添加。若存在水溶性無機鹽時,其濃度可在、至 200 g/l,較佳為2至150 g/l及尤其為1〇或1〇〇 g/1之間變 化。在另一個具體實施例中,組合物不含或含量低於1〇 g/i ’尤其低於1 g/i之水溶性無機鹽。水溶解度意指於2〇£>c φ 之水中溶解度為至少50 g/丨,尤其為至少100 g/l或甚至為 至少200 g/l。較佳而言,該等無機鹽係選自鹼金屬之硫酸 鹽、氣化物、硝酸鹽、磷酸單·及二氫鹽、氨之硫酸鹽、 氯化物、硝酸鹽、磷酸單-及二氫鹽、鹼土金屬之氣化物 及硝酸鹽、及硫酸鎂。實例包括氣化鋰、氣化鈉、氯化 鉀、硝酸鋰、硝酸鈉、硝酸鉀、硫酸鋰、硫酸鈉、硫酸 鉀、磷酸氫鈉、磷酸氫鉀、磷酸二氫鈉、磷酸二氫鉀、氯 化鎂、氯化鈣、硝酸鎂、硝酸鈣、硫酸鎂、氣化銨、硫酸 鲁銨、磷酸氫銨、磷酸二氫銨及其類似物。較佳之鹽為氣化 鈉、氣化鉀、氣化鈣、硫酸銨及硫酸鎂,其中特別佳為硫 酸銨及硫酸鎂。 在本發明之一個特別具體實施例中,組合物另外包括溶 於水相且不同於草甘膦鹽之除草劑化合物之鹽。在該實施 例中’除草劑化合物之鹽之含量通常為1至2〇〇 g/l,尤其 為10至150 g/l。草甘膦鹽及其他除草劑鹽之總濃度一般不 超過550 g/卜且較佳為11〇至55〇 g/1,其中特別佳為16〇至 500 g/l及尤其為 21〇至 480 g/i。 144933.doc -21- 201032713 合適之除草劑鹽包括(但不僅限於): -草按膦(glufosinate)之鹽,諸如草銨膦錢鹽; -殺木膦(fosamine)之鹽,諸如殺木膦敍鹽; -°米。圭琳酮除草劑之鹽,諸如曱基w米草煙(imazapic)、甲氧 咪草煙(imazamox)、滅草煙(imazapyr)、滅草喧 (imazaquin)、或咪草烟(imazethapyr),特定而言為納鹽 或銨鹽,諸如甲氧咪草煙銨、甲基咪草煙銨、煙酸異丙 基銨、滅草喹銨、滅草喹鈉及咪草煙銨; -嘧啶基羧酸酯除草劑之鹽,諸如嘧草硫醚 · (pyrithiobac)、雙 σ密草鍵(bispyribac)、鳴草醚 (pyriminobac)、°密 °定將草醚(pyribenzoxim)或環 S旨草醚 (pyriftalid),特定而言為其納鹽; -苯曱酸除草劑之鹽,諸如麥草畏(dicamba)、三氯茴香酸 (tricamba)、草滅平(chloramben)及 2,3,6-TBA(2,3,6-三氯 苯甲酸),特定言之為鈉、鉀、銨鹽或經取代之銨鹽, 諸如曱基銨、二曱基銨及異丙基銨;單-、二-及三羥基-C2-C8-烷基銨鹽,諸如羥乙基銨、二(羥乙基)銨、三(羥 乙基)銨、羥丙基銨、二(羥丙基)銨及三(羥丙基)銨鹽; -苯氧基羧酸之鹽,例如,苯氧基乙酸除草劑之鹽,諸如 2,4-D、3,4-DA、MCPA、2,4,5-T ;苯氧基丙酸除草劑之 鹽,諸如 2,4-DP (二滴丙酸((14111〇巧1*〇卩))、2,4-0?-?、4-CPP、3,4-DP、涕丙酸(fenoprop)、CMPP(氣丙酸 (mecoprop))、CMPP-P ;及苯氧基丁酸除草劑之鹽,諸 如 4-CPB、2,4-DB、3,4-DB、2,4,5-TB、MCPB ;特定而 144933.doc -22- 201032713 吕為鈉、鉀、錢鹽或經取代之銨鹽,諸如曱基錄、二乙 基銨及異丙基銨;單-、二-及三-羥基_C2_C8_烷基銨鹽, 諸如羥乙基銨、二(羥乙基)銨、三(羥乙基)銨、羥丙基 叙、一(經丙基)錄及三(經丙基)錢鹽; -吡啶羧酸之鹽,諸如氣胺吡啶酸(amin〇pyralid)、克比賴 (clopyrahd)、毒莠定(picloram)、三氯比(tricl〇py〇 或氟
氯比(flUr〇Xypyr),特定而言為如前面所限定之其鈉鹽、 鉀鹽、銨鹽或經取代之銨鹽,及 _喹啉羧酸之鹽,諸如二氣喹啉酸(quincl〇rac)或喹草酸 (qummerac),具體言之為如前面所限定之其鈉鹽、甲 鹽、銨鹽或經取代之銨鹽。 在另一個實施财,組合物不包含溶於水相#之不同於 草甘膦鹽之除草性化合物。 在本發明之-個具體實施例中,組合物另外包含懸浮於 水相中之其他未經囊封之水不溶性農藥化合物。在上下文 中’術語水不溶性意指於25。口,各別農藥化合物在水中 之溶解度不超過10 g/卜尤其不超過5 §/1或甚至不超過上 g/卜水不各性農藥可呈顆粒之形式或微谬囊之形式存在。 特定言之,水不溶性農藥為除草性化合物較佳,具體言之 2自t下之群之除草劑:二罐苯胺除草劑、氯乙醯胺除 ί乙酿胺除草劑、乙醯胺除草劑、四㈣騎草 月j、♦基腺除草劑、三嘻除草劑、_I, 早劑二嗪(二)_除草劑、胺 基甲酸本知除草劑、腈除草劑、 ^甲石μ基二唑除草劑、嗒嗪 ㈣卓劑、㈣草劑、4删_㈣及㈣除 144933.doc -23· 201032713 草劑、或除草劑之安全劑。 其他農藥顆粒之粒徑-般不超過4() μηι及較佳不超過3〇 μΓΠ(〇9❶-值)。較佳者,其他懸浮狀農藥之顆粒具有〇5至2〇 μηι,尤其具有丨至1〇 μπι之平均粒徑(加權平均值,ο” 值)。較佳而言,其他農藥之至少9〇重量%之顆粒具有〇5 至20 μηι,尤其具有iiio ^瓜之直徑。 懸浮於水相中之其他農藥化合物通常係以g/i, 尤其以10至150 g/1之含量存在。微膠囊及其他農藥化合物 之總含量一般不超過550 g/1,且較佳為55至52〇 “I,其中 較佳為110至500 g/Ι,及尤其為17〇至45〇 。 在另一個實施例中,組合物不包含懸浮於水相中之其他 未經囊封之水不溶性農藥化合物。 本發明之組合物可進一步包含常用助劑,諸如常用於農 藥之水性調配物中之消泡劑、增稠劑、防凍劑、防腐劑、 防沉降劑等。 合適之增稠劑包括無機增稠劑,諸如黏土、水合碎酸鎂 及有機增稠劑’諸如多醣膠,如:黃原膠、瓜耳膠、阿拉 伯膠及纖維素衍生物。有機增稠劑之含量通常為〇 5至 g/^及較佳為1至10 g/1,而無機增稠劑之含量通常為〇5至 3 0 g/Ι及較佳為1至1〇 。 防止本發明之組合物被微生物破壞之合適防腐劑包括甲 酸、對羥苯甲酸之烷基酯、苯曱酸鈉、2-溴-2-硝基丙Μ,3_ 二醇、鄰-苯基笨盼、嚷峻琳酮,諸如苯并異α塞唆琳酮、5_ 氣-2-甲基-4-異噻唑啉酮、五氣酚、2,4-二氯苄基醇及其混 144933.doc •24- 201032713 «物。一般,防腐劑之含量為〇1至1〇 g/i。 合適之防凍劑包括可完全與水混溶之有機溶劑,諸如乙 二酵、丙二醇、其他二醇類、甘油或尿素。 由第一種包含經微膠囊封裴之二硝苯胺除草劑之顆粒之 可流動水性組合物與草甘膦鹽或與與含草甘麟鹽之水性組 合物混合即可獲得本發明之組合物。較佳而言,如本發明 之組合物可藉由包括如下之方法製得: φ 〇提供一種包括核心材料(其包含二硝苯胺除草劑)及包圍 該核心材料之聚合性包衣材料之微膠囊之水性懸浮液, 該等微膠囊分散於懸浮液之水相中;及 π)使草甘膦鹽溶於微膠囊之水性懸浮液中。 提供微膠囊之水性懸浮液之方法可在文獻中得知並在前 面作了說明。具體言之,微膠囊之水性懸浮液係藉由所謂 之介面聚合製程,在待囊封之材料之水性懸浮液或乳液中 進行介面聚合處理提供。製得含農藥化合物之微膠囊之介 泰面聚合處理之合適方法已在先前技術中揭示,例如 3,577,515 ' US 4,280,833 > US 5,049,182 ' US 5,229,122 ' US 5,310,721 ' US 5,705,174 ' US 5,910,314 ' WO 95/
13698、WO 00/10392、WO 01/68234、WO 03/099005、EP 619,073或EP-A1 1,109,450,其内容已完全引用。 若组合物包含其他活性物,一般,其可依類似方式,例 如,簡單地使含微膠囊之第一種可流動水性組合物與其他 農藥化合物之水性組合物及與草甘膦鹽或其水性組合物混 合’而併入該組合物中。其他助劑可依類似之方式併入組 J44933.doc -25- 201032713 合物中。 第一種組合物及其他組合物之混合可藉由一般方法使 水性懸浮液與其他成分混合。進行混合之溫度並不重要, 一般可在〇至6(rc,尤其為10至50°C或20至35。(:之間變 化。 曰變 如本發明之組合物可用於控制不需要之植物。由於其較 尚之儲存穩定性,尤其在超過3(rc之溫度,具體言之35它 或更高及甚至在超過45t之溫度下,容易處理組合物。相 較於常規的二硝苯胺除草劑之調配物或經微膠囊封裝之二 硝苯胺除草劑之調配物,本發明之組合物對不需要之植物 展現優越之活性優點。結果,該等組合物比常規的二硝苯 胺除草劑之濃縮組合物更易處理。因此,本申請案亦有關 以該等組合物於控制不需要植被上之用途。 本發明之組合物適用於控制許多有害植物,包括單子葉 雜草,具體言之一年生雜草,諸如禾木科雜草(gramine〇us weeds)(草類),其包括稗屬(Echin〇chl〇a species)(諸如稗草 (barnyardgrass)(變種細葉稗草(Echinochl〇a crusgalli var crus-galli))、馬唐屬(Digitaria species)(諸如馬唐草 (crabgrass)(馬唐(Digitaria sanguinalis)))、狗尾草屬 (Digitaria species)(諸如綠色狗尾草(green foxtau )(翠綠色 狗尾草(Setaria viridis))及大型狗尾草(giant f〇xtail)(外展 型狗尾卓(Setaria faberii))、蜀黎屬(Sorghum species)(諸如 詹森草(johnsongrass)(假高粱)(Sorghum halepense pers.))、燕麥屬(Avena species)(諸如野燕麥(wi】d 〇ats)(野 144933.doc •26· 201032713
燕麥全草)(Avena fatua))、蒺藜草屬(Cenchrus species)(諸 如蒺黎草(Cenchrus echinatus))、雀麥屬(Bromus species)、毒麥屬(Lolium species)、聽草屬(Phalaris species)、野黍屬(Eriochloa species)、黍屬(Panicum species)、巴拉草屬(Brachiaria species)、一年生莓系屬牧 草(annual bluegrass)(早熟禾(Poa annua))、封黑草 (blackgrass)(大穗看麥娘(Alopecurus myosuroides))、圓柱 山羊草(Aegilops cylindrica)、偃麥草(Agropyron repens)、 絲曲草(Apera spica-venti)、牛筋草(Eleusine indica)、狗牙 根(Cynodondactylon)及其類似物。 本發明之組合物亦適用於控制許多雙子葉雜草,具體言 之闊葉雜草,其包括蓼屬(Polygonum species)(諸如金蕎麥 (wild buckwheat)(木藤蓼(Polygonum convolvolus)))、寬屬 (Amaranthus species)(諸如藜(pigweed)(反枝莧(Amaranthus retroflexus))、藜屬(Chenopodium species)(諸如白藜 (common lambsquarters)(灰菜(Chenopodium album L·))、 黃花穂屬(Sida species)(諸如多敕黃花穂(黃花敕湖(Sida spinosa L.))、豚草屬(Ambrosia species)(諸如緒草花粉 (common ragweed))(豚草(Ambrosia artemisiifolia))、刺苞 果屬(Acanthospermum species)、洋甘菊(Anthemis species)、濱藜屬(Atriplex species)、薊屬(Cirsium species)、旋花屬(Convolvulus species)、白酒草屬(Conyza species)、肉桂種(Cassia species)、鴨疏草屬(Commelina species)、曼陀羅屬(Datura species)、大戟屬(Euphorbia 144933.doc -27- 201032713
species)、老鶴草屬(Geranium species)、牛膝菊(Galinsoga species)、白色牵牛花(morningglory)(番薯屬(Ipomoea species))、野芝麻屬(Lamium species)、錦葵屬(Malva species)、母菊屬(Matricaria species)、西亞大蒜芬種 (Sysimbrium species)、茄屬(Solanum species)、蒼耳屬 (Xanthium species)、婆婆納屬(Veronica species)、堇菜屬 (Viola species) ' 繁縷(common chickweed)(魚腸菜 (Stellaria media))、絨毛葉(velvetleaf)(苘麻(Abutilon theophrasti))、大麻田菁屬(Hemp sesbania)(田菁屬雜草 (Sesbania exaltata Cory))、有距單花葵(Anoda cristata)、 鬼針草(Bidens pilosa)、田芥菜(Brassica kaber)、薺菜薺 (Capsella bursa-pastoris) ' 矢車菊(Centaurea cyanus)、野 芝麻(Galeopsis tetrahit)、原拉拉藤(Galium aparine)、向曰 葵(Helianthus annuus)、南美山螞虫皇(Desmodium tortuosum)、地膚(Kochia scoparia)、一年生山彀 (Mercurialis annua)、藍薊(Myosotis arvensis)、虞美人 (Papaver rhoeas)、野蘿蔔(Raphanus raphanistrum)、鉀豬 毛菜(Salsola kali)、芬子(Sinapis arvensis)、苦苣菜 (Sonchus arvensis)、薪萁(Thlaspi arvense) ' 萬壽菊 (Tagetes minuta)、擬鴨舌黃(Richardia brasiliensis)及其類 似物。 本發明之組合物亦可適用於控制許多一年生及多年生莎 草,包括莎草屬(cyperus species)(諸如臭頭香(purple nutsedge)(香附子(Cyperus rotundus L.))、土香(yell〇w 144933.doc -28- 201032713 nutsedge)(油莎豆(Cyperus esculentus L·))、姬久具(hime-kugu)(莎草羅漢松(Cyperus brevifolius H·))、莎屬雜草 (sedge weed)(具芒碎米莎草(Cyperus microiria Steud))、水 稻莎草(rice flatsedge)(碎米莎草(Cyperus iria L.))、及其類 似物》 如本發明之組合物適用於對抗/控制有用植物(亦即農作 物)中之常見有害植物。本發明之組合物一般適用於在下 列植物中對抗/控制不需要之植被: -穀類作物,包括如下: -穀物,諸如小麥(小麥(IWiicww aeshvww))及類似小麥 作物,諸如硬質小麥(durum)(硬質小麥(T. durum))、 單粒小麥(einkorn)(粒小麥(Γ, wonococcMW))、二粒小 麥(emmer)(二粒小麥(Γ.山’coccow))及斯佩耳特小麥 (spelt)(斯佩爾特小麥(71. ae/M))、裸麥(rye)(裸麥 (iSeca/e cerea/e))、黑小麥(ir"z’ca/e)(小黑麥 (Triticosecale))、A 麥(大麥芽(Hordeum vulgare)) ·, -玉蜀泰(玉米;Zea wa少《s); -蜀泰屬(例如高粱Z>/co/owr)); -稻米(稻米(Or少ζα ,諸如栽培稻(Oryza 及 光稃稻(Oryzag/demma);及 -甘庶; •豆類(FMaceae),包括例如大豆(野大豆 max.))、落花生(花生/^p0gae<3))及豆类員作物(諸 如疏豆’包括對婉豆(户/⑼所'木且(pigeon pea) 144933.doc -29- 201032713 及豇豆(cowpea)、及豆類,包括蠶豆(Vicia faba)、豇豆 屬spp.)反策立(Phase〇ius spp)反、4、烏立(iens culinaris var.)); -十字花科,包括例如加拿大油菜(canola)(甘藍型油菜 «α/?Μ·5))、油菜(oilseed rape)(甘藍型油菜 (jBrizwz’ca «αρΜ·?))、甘藍(cabbage)(二甘藍(i?_ var.))、芥子菜(mustard)諸如芥菜〇S. ywwcea)、芸薹種(凡 、烏塌菜(5. wizrz'wosa)、黑芥(凡 及芸 芥屬(i?_ iowr«e/or"7);及蕪菁(turnip)(花椰菜 rapa var.)) ", -其他闊葉作物,包括例如向日葵(sunflower)、棉花 (cotton)、亞麻(flax)、亞麻子(linseed)、甜菜 (sugarbeet)、馬鈐薯(potato)及番祐(tomato); -TNV-作物(TNV :樹、堅果及爬藤類),包括,例如葡 萄、柑橘、仁果(例如蘋果及梨)、咖啡、開心果及油椰 子、核果類,例如桃子、杏仁(almond)、胡桃、撖欖、 楼桃、李子及杏桃(apricot); -草皮、牧草(pasture)及牧草地(rangeland); -洋葱及大蒜; 球莖觀賞植物(bulb ornamentals)’諸如鬱金香(tulipS)& 水仙花(narcissus); 松柏類(conifers)及落葉樹(deciduous trees),諸如争、 (pinus)、冷杉(Hr)、槲樹(oak)、槭樹(maple)、山菜灵 (dogwood)、霍桑(hawthorne)、海棠(crabapple)及氣李 144933.doc -30- 201032713 (rhamnus)(鼠李屬植物(buckthorn));及 -園林觀賞植物,諸如矮牽牛(petunia)、金盞草 (marigold)、玫瑰及金魚草(snapdrag〇n)。 如本發明之組合物很容易加水稀釋至常用之所需施用濃 度。由此所得之稀釋組合物即可備用,及因此通常即呈施 用形式或作為大槽混劑。藉由稀釋本發明組合物而獲得之 大槽混劑可在不需要之植物萌發之前(萌發前)、萌發中及/ 或萌發之後(萌發後)施用。因此,本發明亦有關於一種控 制不需要植被之方法’其包括在不需要之植物萌發之前、 萌發中及/或萌發之後施用水性大槽混劑(其係'加水稀釋本 發明組合物獲得)。 稀釋本發明濃縮組合物所 柳尸β用之水量通常為濃縮組合物體 積之1〇至loooo倍。 Α槽混㈣可與農作物種子-起制。施料發明組合 物之另—種可能性為使S本發明組合物之已稀釋施用形式
預處理農作物種子。較佳而言,㈣本發餘合物係施用 至不需要植物之葉子。且鲈丄 平于具體g之,其施用方式應使該經稀 釋之組合物儘可能不喷 赁濕晨作物之葉子,而組合物直接達 到在下面或在暴露 、 生長之不需要(目標)植物之葉子(後 置式或中耕施用法)。这 )達到所期望之控制時所需要之施用 率係類似於採用二硝茇 望之施用率。“胺除卓劑之常見懸浮濃縮液時所期 【實施方式】 以下示例說明本發明: 144933.doc 201032713 ι.製備實例 L1施得圃微膠囊懸浮液母液之製法(參照實例R1) 製備含水(5S3.9 g)、4〇%之木質素確酸納溶液(43 8… 消泡劑(0.9 g)及殺生物劑(1 5 g)之水性母液。使施得圃 之混合物(926.6 g)加熱至65。〇,_添加基於4,4,二異氰 醯基二苯基乙烷之具有133之當量重量及3i i%2Nc〇· δ 量之 29.9 g 聚異氰酸醋(M〇ndur® MRS,Bayer Materialscience)至535 7 g之上述水性母液中。使該混合物 加熱至65 C ’並授拌形成溶液。然後添加含丨,6六亞曱基 一fe(HMDA ’ 10.4 g)之水(31.2 g)溶液’並授拌約ι小時, 形成微膠囊。接者添加包含62.6 g水、0.26 g增铜劑、1,31 g殺生物劑及1.3 1 g懸浮助劑之66.5 g懸浮助劑之水溶液且 混合至均一。所得組合物包括如下之總組分: 施得圃: 57.90 0//〇 w/w 包衣材料: 2.52 % w/w* 木質素磺酸鈉: 〇 98 % w/w 懸浮助劑: 〇.〇8 % w/w 增稠劑: 0.05 % w/w 殺生物劑: 〇.〇8 % w/w 消泡劑: 0.02 % w/w 水: *假設100°/。轉換 38 37 % w/w 懸浮助劑:萘磺酸曱醛縮合物之鈉鹽(例如BASF Morwet D-425) 144933.doc -32- 201032713 增稠劑:黃原膠 消泡劑:以聚矽氧為基質之乳液 殺生物劑:2-甲基異噻唑-3-酮及1,2-苯并異噻唑-3-酮 之1:1混合物(八(^〇丨(16]^188)之5%之水性組合物 實例1及對照實例C2至C8 : 包含施得圃微膠囊及水溶性除草劑鹽之組合物之製法 (一般程序) 使參考實例R1之懸浮液母液分成8份,每份150 g之子樣 品。使每份子樣品與10 0 g如下之一種除草劑鹽之水溶液 混合至均一。 實例編號 溶液 1 草甘膦IPA鹽(45.8 % w/w ae)1 C22 水 C32 麥草畏(Dicamba)DGA 鹽溶液(38.5% w/w ae)1 C42 麥草畏DMA鹽溶液(40% w/w ae)2 2 C52 2,4 D敍鹽溶液(46·8°/〇 w/w ae)1 C62 二氣1^^StXQuinclorac )DMA 鹽溶液(15.9% w/w ae)1 C72 依滅草(Imazapyr)IPA 鹽溶液(42.9% w/w ae)1 C82 口米草烟(Imazethapyr)IPA 鹽溶液(19.4¾ w/w ae)1 144933.doc •33· 1 * 2除草劑之濃度,按游離酸計算 IPA :異丙銨;DGA :二甘醇銨;DMA :二甲基銨 將如此獲得之每種調配物分成3個子樣品,然後於40 °C、50°C下1個月及經過6次凍融循環,進行儲存穩定度試 驗,然後測定游離施得圃(例如藉由HPLC或UV/VIS),檢 測該調配物之物理性質,包括膠囊之施得圃進入連續相中 之分離、沉降、傾向及浸濾。結論係總結於表1中。 2 對照實例 201032713 表1 : 實例 1 C2 C3 C4 40°C下,儲存1個月 分離 無 46% 1% 3% 沉析 無 有 有-輕度 有 膠體傾向 無 有-南度 無 中度 游離施得圃 0.025 0.262 2.410 3.009 50°C下,儲存1個月 分離 無 47% 1% 12% 沉降 無 有 無 有 膠體傾向 無 有-南度 無 輕度 游離施得圃 0.019 0.157 3.098 3.097 6次;j L融循環 分離 無 19% 20% 3% 沉析 無 有 有 有 膠體傾向 無 無 極輕度 輕度 游離施得圃 0.022 0.184 1.993 2.356 表1(續表) 實例 C5 C6 C7 C8 40°C下,儲存1個月 分離 13% 40% 28% 43% 沉析 有 有 有 有 膠體傾向 輕度至中度 高度 輕度至中 度 中度 游離施得圃 3.029 2.650 0.479 0.776 50°C下,儲存1個月 分離 20% 43% 23% 43% 沉析 有 有 有 有 膠體傾向 輕度 南度 中度 高度 游離施得圃 3.111 2.393 0.499 0.711 6次束融循環 分離 32% 32% 16% 31% 沉析 有 有 有 有 膠體傾向 高度 中度 中度 南度 游離施得圃 3.078 0.546 0.068 0.302 對照實例C2、C3、C4、C5、C6、C7及C8之調配物之穩 144933.doc -34- 201032713 定性差且顯示施得圃明顯地自膠囊浸濾至水相中。令人驚 訝地,對照實例2顯示之浸濾程度低於對照實例C3至C8。 反之,如本發明實例1未顯示明顯之浸濾且具有良好之儲 存穩定性。 參考實例R2至R10 : 施得圃在草甘膦鹽溶液中之溶解度研究: 爲了證明上述儲存穩定性研究,使施得圃在自商品取得 之草甘膦鹽溶液中之溶解度與在水中、及在15%之MgS04 水溶液中之溶解度相比較,以預測除草劑鹽溶液降低施得 圃在水性連續相中之溶解度之能力。 如下表顯示,製備不同濃度之草甘膦鹽溶液(呈異丙 胺、鉀、銨及鈉鹽之形式)。將2克施得圃(工業級)添加至 20克各草甘膦鹽溶液中。各樣品置於65°C下並使其達到平 衡,使溶液經施得圃完全飽和。然後移出樣品,且於25°C 下儲存達到平衡。於25°C下3天後,各溶液通過0.45 μπι之 GMF過濾器過濾,然後評估溶於水相中之施得圃,並與水 及15%之MgS04水溶液(作為對照組)比較。 表2 實例 水溶性鹽溶液 施得圃(ppm) R2 水-對照組 9.4 R3 15 w/w %之MgS〇4溶液 4.8 R4 40 w/w %之草甘膦IPA鹽 4.6 R5 30 w/w %之草甘膦IPA鹽 4.5 R5 20 w/w %之草甘膦IPA鹽 3.3 R6 40 w/w %之草甘膦鉀鹽 3.1 R7 30 w/w %之草甘膦钟鹽 3.1 R8 20 w/w %之草甘膦奸鹽 3.7 144933.doc -35- 201032713 實例 水溶性鹽溶液 施得圃(ppm) R9 30 w/w %之草甘膦銨鹽 2.28 R10 30 w/w %之草甘鱗鈉鹽 0.684 草甘膦IPA鹽溶液顯示施得圃之溶解度下降程度相當於 或大於15 %之MgS〇4溶液。此外,針對施得圃在水相中之 溶解度下降程度方面,鉀、銨及鈉之草甘膦鹽溶液比草甘 膦IPA鹽溶液佳。因此,其他草甘膦鹽亦可防止施得圃自 微膠囊浸濾。 實例9 : 類似參考實例1所述之程序,可製得施得圃微膠囊之懸 浮液母液。然後使該懸浮液與62 % w/w之草甘膦異丙銨之 水性濃縮液摻合。所得之組合物包括如下總組分: 施得圃 33.00 % w/w 包衣材料· 1.68 % w/w1 木質素續酸納: 0.58 % w/w 懸浮助劑: 0.02 % w/w 增稠劑: 0.01 % w/w 殺生物劑: 0.01 % w/w 消泡劑 0,03 % w/w 草甘膦IPA 40.00 % w/w 水: 24.67 % w/w 144933.doc •36· 1 假設100 %轉換 在凍融及於40°C及50°C之儲存條件下,組合物顯示良好 的物理及化學穩定性。在儲存條件下,未觀察到施得圃之 明顯浸濾。
Claims (1)
- 201032713 七、申請專利範圍: 1. 一種可流動水性濃縮組合物,其包括: 1· 50至400 g/i之呈微膠囊形式之5 , ^ 屣办式之至少一種二硝苯胺除 草劑,其包括含二硝苯 丰胺除草劑之核心材料及聚合 性包衣材料,該微膠囊係分散於水相中; ::· 1。。至5〇〇禽溶於水相中之草甘膦(祕-句鹽及 111.至少一種陰離子表面活性物質。2.如明求項1之組合物,其中該草甘膦鹽係選自草甘膦 納、草甘膦錢、草甘膦卸、草甘膦二乙二醇錄及草甘膦 異丙基銨及其混合物。 3. 如請求項2之組合物,其中該草甘膦鹽係選自草甘膦 納、草甘膦異丙基錄及其混合物。 4. 如則述請求項中任一項之組合物,其中該聚合性包衣材 料係選自聚醯胺類、聚碳酸酯、胺基樹脂、聚磺醯胺、 聚脲及聚胺基甲酸醋及其混合物。 5. 如如述凊求項中任一項之組合物,其中該二硝苯胺除草 劑為施得圃(pendimethalin)。 6. 如如述請求項中任一項之組合物’其十該聚合性包衣材 料含量占微膠囊量之〇.5至3〇重量%。 7. 如前述請求項中任一項之組合物,其中該微膠囊具有1 至10 μηι之體積平均直徑。 8.如前述請求項中任一項之組合物,其中該陰離子表面活 性物質之總含量為基於組合物中微膠囊計之01至10重量 %。 144933.doc 201032713 9·如前述請求項中任一項之組合物,其中該至少一種陰離 子表面活〖生物質為陰離子募聚物或聚合物,其包含複數 個磺酸根基。 10.如凊求項9之組合物,其中該陰離子寡聚物或聚合物係 選自氧化之鹼木質素、木質素磺酸鹽、木質素硫酸鹽、 及芳基磺酸曱醛縮合物之鹽及芳基磺酸曱醛脲縮合物之 鹽’及其混合物。 11 ·如刖述凊求項中任—項之組合物,其另外包括至少一種 中性表面活性化合物,其係選自聚氧化乙烯_共聚 C/r氧化烯)嵌段聚合物及如下式I之化合物: R,-(0-B)n-OH (I) 其中: R,為具有8至40個碳原子及視需要具有一個氧原子之 烴基, B 為 C2-C4-烧-1,2-二基及 η 為3至1 〇 〇。 12. 如前述請求項中任一項之組合物’其另外包括溶於水相 中之水溶性無機鹽。 13. 如請求項12之組合物’其中該無機鹽係以〇.1至2〇〇 §/1之 含量存在。 14. 如請求項12或13之組合物,其中該無機鹽係選自鹼金屬 之硫酸鹽、氣化物、硝酸鹽、磷酸單氫及二氫鹽,氨之 硫酸鹽、氣化物、硝酸鹽、磷酸單氫及二氫鹽,鹼土金 屬之氣化物及硝酸鹽,及硫酸鎂。 144933.doc 201032713 15.如凊求項14之組合物,其中該無機鹽係選自氣化鈉、氣 化鉀、氯化鈣、硫酸鎂及硫酸銨。 16々剛述q求項中任一項之組合物,其另外包括除草劑化 合物之鹽,其係溶於水相中且不同於草甘膦鹽。 17. 如請求項16之組合物,其中該除草劑化合物之鹽係以^ 至200 g/i之含量存在。 18. 如刖述請求項中任一項之组合物,其中除了二硝苯胺除 草劑之外,該微膠囊尚包括選自除草劑及安全劑之至少 一種其他活性化合物。 19. 如請求項18之組合物,其中該至少一種其他活性化合物 於25°C下之水溶解度不超過1〇 g/1。 20. 如請求項18之組合物,其中該至少一種其他活性化合物 及該二硝苯胺除草劑係以1 : 9至9 : 1之重量比存於微膠 囊中。 21. —種以如請求項1至2〇中任一項之組合物於控制不需要 之植被之用途。 22. —種控制不需要之植被之方法,其包括加水稀釋如請求 項1至20中任一項之組合物獲得水性大槽混劑,並在不 需要之植物萌發之前、萌發中及/或萌發之後施用。 23. —種製得如請求項1至2〇中任一項之可流動水性濃縮組 合物之方法,其包括: 0 提供包括核心材料(其包含二硝苯胺除草劑)及包圍 該核心材料之聚合性包衣材料之微膠囊之水性懸浮 液’該等微膠囊係分散於懸浮液之水相中;及 144933.doc 201032713 11)使草甘膦鹽溶於微膠囊之水性懸浮液中。 24. 一種以草甘膦鹽使包含50至400 g/Ι之微膠囊之可流動水 性濃縮組合物之儲存穩定性增加之用途,其中該等微膠 囊包括含二硝苯胺除草劑之核心材料及包圍該核心材料 之聚合性包衣材料,該等微膠囊係分散於水相中。 144933.doc 201032713 , 四、指定代表圖: (一) 本案指定代表圖為:(無) (二) 本代表圖之元件符號簡單說明·· 五、本案若有化學式時,請揭示最能顯示發明特徵的化學式: ❹ (無) 144933.doc
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2009
- 2009-12-18 BR BRPI0917606A patent/BRPI0917606A2/pt not_active IP Right Cessation
- 2009-12-18 EA EA201100946A patent/EA018371B1/ru not_active IP Right Cessation
- 2009-12-18 AU AU2009329535A patent/AU2009329535B2/en not_active Ceased
- 2009-12-18 AR ARP090104996A patent/AR075318A1/es not_active Application Discontinuation
- 2009-12-18 US US13/140,047 patent/US8709975B2/en not_active Expired - Fee Related
- 2009-12-18 ES ES09796713T patent/ES2394063T3/es active Active
- 2009-12-18 CN CN200980150483.0A patent/CN102256485B/zh not_active Expired - Fee Related
- 2009-12-18 PL PL09796713T patent/PL2378871T3/pl unknown
- 2009-12-18 JP JP2011541472A patent/JP2012512841A/ja not_active Withdrawn
- 2009-12-18 WO PCT/EP2009/067520 patent/WO2010070096A1/en active Application Filing
- 2009-12-18 KR KR1020117016681A patent/KR20110099745A/ko not_active Withdrawn
- 2009-12-18 CA CA2744606A patent/CA2744606C/en not_active Expired - Fee Related
- 2009-12-18 DK DK09796713.7T patent/DK2378871T3/da active
- 2009-12-18 TW TW098143731A patent/TW201032713A/zh unknown
- 2009-12-18 UA UAA201109000A patent/UA104882C2/uk unknown
- 2009-12-18 UY UY0001032345A patent/UY32345A/es unknown
- 2009-12-18 EP EP09796713A patent/EP2378871B1/en active Active
-
2011
- 2011-06-14 CR CR20110329A patent/CR20110329A/es unknown
- 2011-06-17 CO CO11075842A patent/CO6331402A2/es not_active Application Discontinuation
- 2011-07-18 ZA ZA2011/05272A patent/ZA201105272B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CA2744606C (en) | 2016-11-08 |
CA2744606A1 (en) | 2010-06-24 |
CR20110329A (es) | 2011-09-06 |
JP2012512841A (ja) | 2012-06-07 |
BRPI0917606A2 (pt) | 2023-04-18 |
EP2378871B1 (en) | 2012-10-31 |
US8709975B2 (en) | 2014-04-29 |
PL2378871T3 (pl) | 2013-03-29 |
CN102256485A (zh) | 2011-11-23 |
UA104882C2 (uk) | 2014-03-25 |
UY32345A (es) | 2010-06-30 |
AU2009329535A1 (en) | 2011-07-07 |
EA201100946A1 (ru) | 2012-01-30 |
AR075318A1 (es) | 2011-03-23 |
DK2378871T3 (da) | 2013-02-11 |
CN102256485B (zh) | 2014-04-30 |
KR20110099745A (ko) | 2011-09-08 |
ES2394063T3 (es) | 2013-01-16 |
CO6331402A2 (es) | 2011-10-20 |
AU2009329535B2 (en) | 2015-08-13 |
WO2010070096A1 (en) | 2010-06-24 |
EP2378871A1 (en) | 2011-10-26 |
US20110251064A1 (en) | 2011-10-13 |
EA018371B1 (ru) | 2013-07-30 |
ZA201105272B (en) | 2012-09-26 |
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