WO2015093380A1 - 農業用液状散布剤 - Google Patents
農業用液状散布剤 Download PDFInfo
- Publication number
- WO2015093380A1 WO2015093380A1 PCT/JP2014/082779 JP2014082779W WO2015093380A1 WO 2015093380 A1 WO2015093380 A1 WO 2015093380A1 JP 2014082779 W JP2014082779 W JP 2014082779W WO 2015093380 A1 WO2015093380 A1 WO 2015093380A1
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- WO
- WIPO (PCT)
- Prior art keywords
- pva
- liquid spray
- resin
- mol
- water
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 51
- 239000007921 spray Substances 0.000 title claims abstract description 39
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 35
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 74
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 74
- 229920005989 resin Polymers 0.000 claims abstract description 65
- 239000011347 resin Substances 0.000 claims abstract description 65
- 238000007127 saponification reaction Methods 0.000 claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000005507 spraying Methods 0.000 claims description 25
- 239000002904 solvent Substances 0.000 claims description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 45
- -1 polyoxyethylene Polymers 0.000 description 31
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 21
- 238000006116 polymerization reaction Methods 0.000 description 18
- 239000000243 solution Substances 0.000 description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 11
- 239000003814 drug Substances 0.000 description 9
- 229940079593 drug Drugs 0.000 description 9
- 239000003337 fertilizer Substances 0.000 description 9
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 8
- 239000004480 active ingredient Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 239000000575 pesticide Substances 0.000 description 7
- 238000003892 spreading Methods 0.000 description 7
- 230000007480 spreading Effects 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000012046 mixed solvent Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 125000005702 oxyalkylene group Chemical group 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 229920001451 polypropylene glycol Polymers 0.000 description 5
- ATVJXMYDOSMEPO-UHFFFAOYSA-N 3-prop-2-enoxyprop-1-ene Chemical compound C=CCOCC=C ATVJXMYDOSMEPO-UHFFFAOYSA-N 0.000 description 4
- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000003898 horticulture Methods 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229920001567 vinyl ester resin Polymers 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 150000000180 1,2-diols Chemical class 0.000 description 1
- WDCYWAQPCXBPJA-UHFFFAOYSA-N 1,3-dinitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC([N+]([O-])=O)=C1 WDCYWAQPCXBPJA-UHFFFAOYSA-N 0.000 description 1
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 1
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XEEYSDHEOQHCDA-UHFFFAOYSA-N 2-methylprop-2-ene-1-sulfonic acid Chemical compound CC(=C)CS(O)(=O)=O XEEYSDHEOQHCDA-UHFFFAOYSA-N 0.000 description 1
- DKIDEFUBRARXTE-UHFFFAOYSA-N 3-mercaptopropanoic acid Chemical compound OC(=O)CCS DKIDEFUBRARXTE-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 229920001732 Lignosulfonate Polymers 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical group OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 238000000944 Soxhlet extraction Methods 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000006359 acetalization reaction Methods 0.000 description 1
- 125000002339 acetoacetyl group Chemical group O=C([*])C([H])([H])C(=O)C([H])([H])[H] 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 239000012868 active agrochemical ingredient Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- RZJRJXONCZWCBN-UHFFFAOYSA-N alpha-octadecene Natural products CCCCCCCCCCCCCCCCCC RZJRJXONCZWCBN-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- ZBGRMWIREQJHPK-UHFFFAOYSA-N ethenyl 2,2,2-trifluoroacetate Chemical compound FC(F)(F)C(=O)OC=C ZBGRMWIREQJHPK-UHFFFAOYSA-N 0.000 description 1
- MEGHWIAOTJPCHQ-UHFFFAOYSA-N ethenyl butanoate Chemical compound CCCC(=O)OC=C MEGHWIAOTJPCHQ-UHFFFAOYSA-N 0.000 description 1
- CMDXMIHZUJPRHG-UHFFFAOYSA-N ethenyl decanoate Chemical compound CCCCCCCCCC(=O)OC=C CMDXMIHZUJPRHG-UHFFFAOYSA-N 0.000 description 1
- GLVVKKSPKXTQRB-UHFFFAOYSA-N ethenyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC=C GLVVKKSPKXTQRB-UHFFFAOYSA-N 0.000 description 1
- GFJVXXWOPWLRNU-UHFFFAOYSA-N ethenyl formate Chemical compound C=COC=O GFJVXXWOPWLRNU-UHFFFAOYSA-N 0.000 description 1
- UJRIYYLGNDXVTA-UHFFFAOYSA-N ethenyl hexadecanoate Chemical compound CCCCCCCCCCCCCCCC(=O)OC=C UJRIYYLGNDXVTA-UHFFFAOYSA-N 0.000 description 1
- AFSIMBWBBOJPJG-UHFFFAOYSA-N ethenyl octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC=C AFSIMBWBBOJPJG-UHFFFAOYSA-N 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- 238000006266 etherification reaction Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- IUGYQRQAERSCNH-UHFFFAOYSA-N pivalic acid Chemical compound CC(C)(C)C(O)=O IUGYQRQAERSCNH-UHFFFAOYSA-N 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- TZYULTYGSBAILI-UHFFFAOYSA-M trimethyl(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CC=C TZYULTYGSBAILI-UHFFFAOYSA-M 0.000 description 1
- ZQYKGADTDCTWSZ-UHFFFAOYSA-N trimethyl-[(prop-2-enoylamino)methyl]azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CNC(=O)C=C ZQYKGADTDCTWSZ-UHFFFAOYSA-N 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 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
- A01N25/24—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 containing ingredients to enhance the sticking of the active ingredients
-
- 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
- A01N25/02—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 containing liquids as carriers, diluents or solvents
-
- 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
- A01N25/08—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 containing solids as carriers or diluents
- A01N25/10—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
Definitions
- the present invention relates to an agricultural liquid spraying agent excellent in the adhesiveness of the active ingredient.
- fertilizers for promoting growth of fruits and vegetables and pesticides for controlling pests are diluted with water and sprayed as they are.
- the fertilizer or pesticide is diluted with water and sprayed on the plant body in this way, the active ingredient of the fertilizer or pesticide will be washed away due to rain, etc. Sustainability is often impaired.
- a spreading agent is usually added to the fertilizer or pesticide water-diluted solution for the purpose of improving the adhesion or sticking property of the active ingredient of the fertilizer or pesticide to the plant body.
- polyoxyethylene alkylphenyl ethers and polyoxyethylenes have the properties of lowering the surface tension of the spray liquid and improving the effect of fertilizers and pesticides by improving the adhesion or spreadability to insects and crops that are difficult to wet.
- Alkyl ethers, polyoxyethylene fatty acid esters, lignin sulfonates, naphthyl methane sulfonates, and the like are widely used. However, these have properties that are very compatible with water, and thus cannot prevent runoff due to rain or the like.
- a spreading agent showing a sticking effect there are those mainly composed of polyoxyethylene resin acid ester, paraffin, etc., but it is not effective unless the use concentration is increased, and since the dry film does not dissolve in water, it is a plant. There are problems such as remaining on the body forever. Furthermore, these spreading agents have a problem that all of them have poor solubility in the above-mentioned water dilution solution and do not function unless the blending amount is increased.
- the polyvinyl alcohol used in the fixing composition of Patent Document 1 preferably has a saponification degree of 71 to 89 mol% from the viewpoint of water solubility, which is generally partially saponified. It is an area marketed as polyvinyl alcohol, and when such polyvinyl alcohol is used, there is still room for improvement in terms of fixing properties.
- liquid sprays used in the fields of agriculture and horticulture include fertilizers, agricultural chemicals, herbicides, insect repellents, and other chemicals that are the basis for their active ingredients, but they are soluble in water. Many of them have difficult properties, and when such substances are added, the use of an appropriate amount of alcohol as a solvent is often superior in solubility. However, when polyvinyl alcohol is blended in the alcohol, aggregation may occur and the sprayability may be hindered. Therefore, even when alcohol is used as the solvent, the sprayability is not inhibited and the fixing property is excellent. There is a need for liquid sprays for agriculture.
- the present invention has been made in view of the above circumstances, and an object thereof is a liquid spraying agent used in the fields of agriculture and horticulture, which has a high fixing property and is excellent in spraying property. Is to provide.
- the present inventor has excellent fixability by setting the saponification degree of polyvinyl alcohol in the agricultural liquid spraying agent to 30 to 60 mol%. Even when used, the present inventors have found that the dispersibility is not hindered and completed the present invention.
- the present invention relates to an agricultural liquid spraying agent characterized by containing a polyvinyl alcohol resin having a saponification degree of 30 to 60 mol%.
- the polyvinyl alcohol-type resin used by this invention has the low saponification degree as mentioned above, it can be said that it is a vinyl ester-type resin.
- the agricultural liquid spraying agent of the present invention is excellent in sticking property and spraying property due to the action of the specific polyvinyl alcohol resin in the spraying agent. Further, even when an appropriate amount of alcohol is used as the solvent, aggregation is not caused and high sprayability can be obtained. Therefore, even if it contains a pesticide or the like having a property of being hardly soluble in water and easily soluble in alcohol, it can be used favorably as a spraying agent. In particular, the agricultural liquid spray of the present invention is suitably used as a foliar spray.
- the agricultural liquid spray of the present invention is abbreviated as “polyvinyl alcohol resin (hereinafter referred to as“specific PVA resin ”) having a saponification degree of 30 to 60 mol%. It is abbreviated as “.”).
- the degree of saponification of the specific PVA resin is preferably 30 to 60 mol%, more preferably 33 to 50 mol%. This is because if the degree of saponification is too low, it will not dissolve in water and will not function as a water-soluble spraying agent. Conversely, if the degree of saponification is too high, the adhesiveness will decrease, This is because the dispersibility tends to decrease due to the aggregation reaction.
- the saponification degree can be analyzed by the alkali consumption required for hydrolysis of residual vinyl acetate.
- the above-mentioned specific PVA resin can usually be obtained by partially saponifying a vinyl ester polymer obtained by polymerizing a vinyl ester compound.
- vinyl ester compounds examples include vinyl formate, vinyl acetate, vinyl trifluoroacetate, vinyl propionate, vinyl butyrate, vinyl caprate, vinyl laurate, vinyl versatate, vinyl palmitate, vinyl stearate, pivalic acid, etc. Are used alone or in combination of two or more. In practice, vinyl acetate is preferably used from the viewpoint of economy.
- the specific PVA-based resin may be unmodified or modified, but particularly modified one has good affinity with alcohol, so that it can be used for agricultural liquid spraying. When alcohol is added to the solvent of the agent, modified PVA is better.
- modified PVA can be produced by saponifying a polymer of a vinyl ester monomer and another unsaturated monomer, or post-modifying PVA.
- the “other unsaturated monomer” examples include olefins such as ethylene, propylene, isobutylene, ⁇ -octene, ⁇ -dodecene, ⁇ -octadecene, acrylic acid, methacrylic acid, crotonic acid, maleic acid, anhydrous Unsaturated acids such as maleic acid and itaconic acid or salts thereof, mono- or dialkyl esters, nitriles such as acrylonitrile and methacrylonitrile, amides such as acrylamide and methacrylamide, ethylene sulfonic acid, allyl sulfonic acid, methallyl sulfonic acid Such as olefin sulfonic acids or salts thereof, alkyl vinyl ethers, N-acrylamidomethyltrimethylammonium chloride, allyltrimethylammonium chloride, dimethylallyl vinyl ketone, N-vinyl pyrrolidone, vinyl chloride,
- examples of the post-modification method include a method of converting PVA into acetoacetate ester, acetalization, urethanization, etherification, grafting, phosphoric esterification, and oxyalkylene.
- anion modified PVA and nonionic modified PVA are particularly preferred because of their high affinity for water.
- examples of the anion-modified PVA include carboxyl group-containing PVA, sulfonic acid group-containing PVA, and phosphoric acid group-containing PVA.
- Nonionic modified PVA includes oxyalkylene group-containing PVA, acetoacetyl group-containing PVA, diacetone acrylamide-modified PVA, mercapto group-containing PVA, silanol group-containing PVA, side chain 1,2 diol structural unit-containing PVA, and the like. . Of these, oxyalkylene group-containing PVA and carboxyl group-containing PVA are preferred from the viewpoint of alcohol solubility.
- the modification rate of the anion-modified PVA is preferably 0.1 to 1 mol%, particularly preferably 0.2 to 0.5 mol%, and the modification rate of the nonion-modified PVA is 0.5 to 5 mol%. Particularly preferred is 1 to 2 mol%.
- the average degree of polymerization (based on JIS K 6726) of the specific PVA resin used in the agricultural liquid spray of the present invention is usually 100 to 2000, particularly 150 to 1000, more preferably 200 to 800. It is done. That is, if the average degree of polymerization of the PVA-based resin is too low, the fixing property is lowered. Conversely, if the average degree of polymerization is too high, the solubility is lowered.
- examples of the solvent used in the agricultural liquid spray of the present invention include water, water containing alcohol, and the like.
- water containing alcohol ie, a water / alcohol mixed solvent
- the mixing ratio (weight ratio) of water / alcohol is usually 9/1 to 1/9, particularly preferably 7/3 to 2 / 8, more preferably 6/4 to 3/7 is used. This is because by using such a solvent, it becomes excellent in sprayability, drug solubility, quick-drying property (early coating film forming property) and the like.
- the drug that is the active ingredient of the spray that is, an agrochemical, fertilizer, herbicide, insect repellent, etc.
- Drugs that need to be used Such a chemical can be used as long as it dissolves or disperses in water or alcohol, but uses a non-reactive one for the specific PVA resin used in the agricultural liquid spray of the present invention. There is a need.
- the agricultural liquid spraying agent of the present invention in addition to the specific PVA-based resin, solvent, and drug, if necessary, other emulsifiers, wettable powders, flowable agents, surfactants, thickeners, preservatives, etc. Ingredients are added. However, the blending amount of such other components is preferably 10% by weight or less of the whole agricultural liquid spray.
- the agricultural liquid spraying agent of the present invention is, for example, (1) mixing a specific PVA resin solution and a drug solution, (2) mixing a powdered drug in a specific PVA resin solution, ( 3) It can be prepared by a method in which the specific PVA resin powder is mixed in the drug solution and mixed. Especially, it is preferable to prepare by the method shown in (1).
- the concentration of the specific PVA resin in the agricultural liquid spray agent of the present invention thus obtained is usually 0.01 to 30% by weight, preferably 0.1 to 20% by weight, more preferably 1 to 10%. % By weight. That is, by preparing so that it may become such a density
- the concentration of the agent as the active ingredient is usually 0.1 to 5000 ppm by weight, preferably 1 to 1000 ppm by weight, more preferably 10 to 500 ppm by weight. It is. That is, by preparing to such a concentration, the active ingredient of the drug functions effectively.
- the agricultural liquid spraying agent of the present invention can be used as a spraying agent for leaves, stems and fruits, a mixture for hydroponic liquids and supply liquids, and the like.
- it is suitably used as a foliar spray.
- Example 1 ⁇ Preparation of PVA resin (1)> A reaction vessel equipped with a reflux condenser, a dropping funnel and a stirrer was charged with 1000 parts by weight of vinyl acetate and 300 parts by weight of methanol, and 0.079 mol% of azobisisobutyronitrile (with respect to the charged vinyl acetate) was charged. While stirring, the temperature was raised under a nitrogen stream to initiate polymerization. Further, after 2 hours and 4 hours from the start of polymerization, 0.079 mol% of azobisisobutyronitrile (vs.
- PVA resin (1) When saponification progresses as saponification progresses and particles are formed, 0.8 equivalent of sodium hydroxide is added to neutralization acetic acid, filtered, washed well with methanol, and heated in a hot air dryer To obtain an unmodified PVA resin [PVA resin (1)].
- the saponification degree of the obtained PVA-based resin (1) was 49 mol% as analyzed by the alkali consumption required for hydrolysis of the residual vinyl acetate, and the average polymerization degree was based on JIS K 6726. When analyzed, it was 250.
- the PVA resin (1) obtained as described above was dissolved in a mixed solvent having water / ethanol (weight ratio) of 6/4 to prepare a PVA solution having a concentration of 5% by weight.
- the non-alcoholic liquid fertilizer (Hyponex Japan company make, Hyponex) was diluted to the designated density
- Example 2 An unmodified PVA resin having a saponification degree of 34 mol% and an average polymerization degree of 300 was prepared according to the method for producing the PVA resin (1). Then, the unmodified PVA resin prepared above was used in place of the PVA resin (1). Otherwise, an agricultural liquid spray was prepared in the same manner as in Example 1.
- the methanol solution was adjusted to a concentration of 40% and charged into a kneader. While maintaining the solution temperature at 40 ° C., a 2% methanol solution of sodium hydroxide was added to 1 mol of vinyl acetate structural unit in the copolymer. Saponification was carried out for 1.5 hours at a rate of 10 mmol. After adding 0.8 equivalents of sodium hydroxide to neutralization acetic acid, the mixture was heated with stirring to completely drive out methanol, and then dissolved by adding water to obtain a 40% aqueous oxyalkylene group-containing PVA system. Resin [PVA resin (2)] was obtained.
- the saponification degree of the obtained PVA-based resin (2) was 48 mol% when analyzed by the alkali consumption required for hydrolysis of the residual vinyl acetate, and the average polymerization degree was based on JIS K 6726. It was 260 when the analysis was conducted.
- the modification rate [oxyalkylene group content] of the PVA-based resin (2) was set to 1.8 mol% from the amount charged.
- An agricultural liquid spray was prepared in the same manner as in Example 1 except that the PVA resin (2) obtained as described above was used instead of the PVA resin (1).
- Example 4 An oxyalkylene group-containing PVA resin having a saponification degree of 43 mol%, an average degree of polymerization of 280, and a modification rate of 1.7 mol% was produced according to the production method of the PVA resin (2). Then, the modified PVA resin produced above was used in place of the PVA resin (1). Otherwise, an agricultural liquid spray was prepared in the same manner as in Example 1.
- Example 5 Preparation of PVA resin (3)> Vinyl acetate and 3-mercaptopropionic acid were copolymerized in methanol. The obtained copolymer was saponified with sodium hydroxide. The saponification degree of the obtained PVA-based resin (3) was 38 mol% when analyzed by the alkali consumption required for hydrolysis of the residual vinyl acetate, and the average polymerization degree was in accordance with JIS K 6726. When analyzed, it was 530. Further, the modification rate [terminal carboxyl group content] of the PVA-based resin (3) was set to 0.25 mol% from the charged amount.
- the obtained PVA resin (3) was purified by Soxhlet extraction with methanol for 48 hours, dissolved in heavy water, and subjected to nuclear magnetic resonance analysis (hereinafter abbreviated as NMR). As a result, the PVA resin (3) The presence of a COONa group at the end was confirmed, and a PVA resin (3) having a NaOOC—CH 2 —CH 2 —S— carboxyl group at one end of the molecule was confirmed.
- An agricultural liquid spray was prepared in the same manner as in Example 1 except that the PVA resin (3) obtained as described above was used instead of the PVA resin (1).
- the agricultural liquid spraying agents of the examples had high sticking properties, and the sprayability was also uniform because they were uniformly sprayed on the foliage.
- the agricultural liquid spraying agent of the comparative example cannot be sprayed when the mixed solvent of water / ethanol (weight ratio) is 6/4 because the PVA resin did not dissolve in the solvent. Since the adhesiveness could not be evaluated, a mixed solvent having a water / ethanol (weight ratio) of 9/1 was used. Even in that case, however, the adhesiveness was inferior to that of the example. .
- solubility evaluation was performed according to the following criteria. The results are also shown in Table 2 below.
- Soluble evaluation The PVA resins of Examples and Comparative Examples were mixed at room temperature in a solvent having a water / ethanol ratio (weight ratio) as shown below at a concentration of 5%, stirred, and evaluated according to the following evaluation criteria A to A According to C, the dissolution behavior was observed.
- C Insoluble (precipitate after dispersion)
- the PVA resin of the example has a wider range of dissolution or dispersion even when the water / alcohol mixing ratio is changed, compared with the PVA resin of the comparative example.
- the modified PVA-based resin had a wider range of dissolution or dispersion even when the water / alcohol mixing ratio was changed.
- the agricultural liquid spraying agent of the present invention has high fixing property and excellent spraying property due to the action of the specific PVA resin, so that it is a liquid spraying agent used in the fields of agriculture and horticulture, such as leaves and stems. It is effective for application to spraying agents for fruits.
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Abstract
Description
また、固着効果を示す展着剤として、ポリオキシエチレン樹脂酸エステル、パラフィン等を主成分とするものがあるが、使用濃度を高くしないと効果がでない、乾いた皮膜が水に溶けないため植物体上にいつまでも残留する、等の問題がある。さらに、これらの展着剤は、いずれも上記水希釈液中での溶解性が悪く、さらには配合量を多くしないと機能しないという問題もある。
以下、本発明について詳細に説明する。
かかるケン化度が低すぎると、水に溶けなくなり、水溶性散布剤としての機能を果たさなくなるからであり、逆に、かかるケン化度が高過ぎると、固着性が低下したり、アルコールとの凝集反応により散布性が低下する傾向がみられるからである。なお、上記ケン化度は、残存酢酸ビニルの加水分解に要するアルカリ消費量で分析することができる。
かかる変性PVAは、ビニルエステル系モノマーと他の不飽和単量体との重合体をケン化したり、PVAを後変性したりして、製造することができる。
<PVA系樹脂(1)の作製>
還流冷却器、滴下漏斗、撹拌機を備えた反応缶に、酢酸ビニル1000重量部、メタノール300重量部を仕込み、アゾビスイソブチロニトリルを0.079モル%(対仕込み酢酸ビニル)投入し、撹拌しながら窒素気流下で温度を上昇させ、重合を開始した。さらに、重合開始2時間後、4時間後にそれぞれアゾビスイソブチロニトリルを0.079モル%(対仕込み酢酸ビニル)追加し、酢酸ビニルの重合率が94%となった時点で、m-ジニトロベンゼンを所定量添加して重合を終了し、続いて、メタノール蒸気を吹き込みつつ蒸留することで未反応の酢酸ビニルモノマーを系外に除去し、共重合体のメタノール溶液を得た。
次いで、上記メタノール溶液を、濃度50%に調整してニーダーに仕込み、溶液温度を40℃に保ちながら、水酸化ナトリウムの2%メタノール溶液を共重合体中の酢酸ビニル構造単位1モルに対して10ミリモルとなる割合で加えてケン化を行った。ケン化が進行すると共にケン化物が析出し、粒子状となった時点で、中和用の酢酸を水酸化ナトリウムの0.8当量添加し、濾別、メタノールでよく洗浄して熱風乾燥機中で乾燥し、未変性PVA系樹脂[PVA系樹脂(1)]を得た。
得られたPVA系樹脂(1)のケン化度は、残存酢酸ビニルの加水分解に要するアルカリ消費量で分析を行ったところ49モル%であり、平均重合度は、JIS K 6726に準拠して分析を行ったところ、250であった。
PVA系樹脂(1)の作製方法に準じ、ケン化度34モル%、平均重合度300の未変性PVA系樹脂を作製した。そして、上記作製の未変性PVA系樹脂を、PVA系樹脂(1)に代えて用いた。それ以外は、実施例1と同様にして農業用液状散布剤を調製した。
<PVA系樹脂(2)の作製>
還流冷却器、滴下漏斗、撹拌機を備えた反応缶に、酢酸ビニル1000重量部、メタノール9580重量部、平均鎖長n=10のポリオキシエチレンアリルエーテル237重量部(2モル%対仕込み酢酸ビニル)を仕込み、アゾビスイソブチロニトリルを0.079モル%(対仕込み酢酸ビニル)投入し、撹拌しながら窒素気流下で温度を上昇させ、重合を開始した。さらに、13時間かけて、酢酸ビニル1410重量部、メタノール3195重量部、ポリオキシエチレンアリルエーテル2130重量部を滴下、また重合開始4時間後にアゾビスイソブチロニトリルを0.079モル%(対仕込み酢酸ビニル)追加し、酢酸ビニルの重合率が94%となった時点で、m-ジニトロベンゼンを所定量添加して重合を終了し、続いて、メタノール蒸気を吹き込みつつ蒸留することで未反応の酢酸ビニルモノマーを系外に除去し、共重合体のメタノール溶液を得た。
次いで、上記メタノール溶液を、濃度40%に調整してニーダーに仕込み、溶液温度を40℃に保ちながら、水酸化ナトリウムの2%メタノール溶液を共重合体中の酢酸ビニル構造単位1モルに対して10ミリモルとなる割合で加えてケン化を1.5時間行った。中和用の酢酸を水酸化ナトリウムの0.8当量添加した後、攪拌しながら過熱してメタノールを完全に追い出した後、水を追加して溶解し、40%水溶液のオキシアルキレン基含有PVA系樹脂[PVA系樹脂(2)]を得た。
得られたPVA系樹脂(2)のケン化度は、残存酢酸ビニルの加水分解に要するアルカリ消費量で分析を行ったところ48モル%であり、平均重合度は、JIS K 6726に準拠して分析を行ったところ、260であった。また、上記PVA系樹脂(2)の変性率[オキシアルキレン基含有量]は、その仕込み量から1.8モル%とした。
PVA系樹脂(2)の作製方法に準じ、ケン化度43モル%、平均重合度280、変性率1.7モル%の、オキシアルキレン基含有PVA系樹脂を作製した。そして、上記作製の変性PVA系樹脂を、PVA系樹脂(1)に代えて用いた。それ以外は、実施例1と同様にして農業用液状散布剤を調製した。
<PVA系樹脂(3)の作製>
酢酸ビニルと3-メルカプトプロピオン酸をメタノール中で共重合した。得られた共重合体を水酸化ナトリウムでケン化した。
得られたPVA系樹脂(3)のケン化度は、残存酢酸ビニルの加水分解に要するアルカリ消費量で分析を行ったところ38モル%であり、平均重合度は、JIS K 6726に準拠して分析を行ったところ、530であった。また、上記PVA系樹脂(3)の変性率[末端カルボキシル基含有量]は、その仕込み量から0.25モル%とした。得られたPVA系樹脂(3)を、メタノールで48時間ソックスレー抽出による精製を行った後、重水に溶解し、核磁気共鳴分析(以下NMRと略記する)したところ、PVA系樹脂(3)の末端にCOONa基の存在が認められ、分子の片末端にNaOOC-CH2-CH2-S-のカルボキシル基を有するPVA系樹脂(3)が確認できた。
PVA系樹脂(1)の作製方法に準じ、ケン化度80モル%、平均重合度350の未変性PVA系樹脂を作製した。そして、上記作製の未変性PVA系樹脂を、PVA系樹脂(1)に代えて用い、さらに、水/エタノール混合溶媒において、その水/エタノール(重量比)を9/1にした。それ以外は、実施例1と同様にして農業用液状散布剤を調製した。
PVA系樹脂(1)の作製方法に準じ、ケン化度88モル%、平均重合度600の未変性PVA系樹脂を作製した。そして、上記作製の未変性PVA系樹脂を、PVA系樹脂(1)に代えて用い、さらに、水/エタノール混合溶媒において、その水/エタノール(重量比)を9/1にした。それ以外は、実施例1と同様にして農業用液状散布剤を調製した。
農業用液状散布剤105重量部に対し、着色剤(食紅)を0.1重量部添加した後、植物(ベンジャミンエスタ)の葉面に対し、霧吹きにて農業用液状散布剤を散布した。そして、24時間放置後、その葉面(農業用液状散布剤の散布面)に対し、霧吹きにて水を噴きかけた。そして、落ちずに残った着色面を目視観察し、その着色面が、葉面(農業用液状散布剤の散布面)の面積に対して80%以上残ったものを「○」と評価した。なお、葉面(農業用液状散布剤の散布面)の面積に対して30%以上60%未満残ったものを「△」、30%未満しか残らなかったものを「×」と評価した。
≪溶解性評価≫
水/エタノールの割合(重量比)を下記に示す割合にした溶媒に、濃度5%となるように実施例および比較例のPVA系樹脂を室温にて混合し、撹拌し下記の評価基準A~Cに従い、溶解挙動を観察した。
A:溶解
B:不溶(安定に分散)
C:不溶(分散後に沈殿)
Claims (4)
- ケン化度が30~60モル%のポリビニルアルコール系樹脂を含有することを特徴とする農業用液状散布剤。
- 上記ポリビニルアルコール系樹脂が、変性ポリビニルアルコール系樹脂である請求項1記載の農業用液状散布剤。
- 溶媒として、アルコールを含有する水を用いた請求項1または2記載の農業用液状散布剤。
- 農業用液状散布剤が葉面散布剤である、請求項1~3のいずれか一項に記載の農業用液状散布剤。
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US15/031,029 US10595528B2 (en) | 2013-12-20 | 2014-12-11 | Liquid spray agent for agricultural use |
AU2014367924A AU2014367924C1 (en) | 2013-12-20 | 2014-12-11 | Liquid spray agent for agricultural use |
EP14872288.7A EP3085680B1 (en) | 2013-12-20 | 2014-12-11 | Liquid spray agent for agricultural use |
CN201480063499.9A CN105764873B (zh) | 2013-12-20 | 2014-12-11 | 农业用液态散布剂 |
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JP2018076239A (ja) * | 2016-11-07 | 2018-05-17 | 日本合成化学工業株式会社 | 植物用液状散布剤 |
US20190216081A1 (en) * | 2016-11-07 | 2019-07-18 | The Nippon Synthetic Chemical Industry Co., Ltd. | Liquid spray agent for plants |
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EP3673735A4 (en) * | 2017-08-24 | 2021-06-09 | Kuraray Co., Ltd. | AGROCHEMICAL AND AGROCHEMICAL SPRAY AGROCHEMICAL SPRAY AGENT |
JP7160897B2 (ja) * | 2018-03-08 | 2022-10-25 | 株式会社クラレ | 農薬用展着剤及び農薬散布液 |
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JP2012006881A (ja) * | 2010-06-25 | 2012-01-12 | Nippon Synthetic Chem Ind Co Ltd:The | 徐放性農薬組成物 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018076239A (ja) * | 2016-11-07 | 2018-05-17 | 日本合成化学工業株式会社 | 植物用液状散布剤 |
US20190216081A1 (en) * | 2016-11-07 | 2019-07-18 | The Nippon Synthetic Chemical Industry Co., Ltd. | Liquid spray agent for plants |
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CN105764873B (zh) | 2023-08-15 |
EP3085680B1 (en) | 2020-07-15 |
US10595528B2 (en) | 2020-03-24 |
AU2014367924A1 (en) | 2016-05-19 |
JP5727087B1 (ja) | 2015-06-03 |
AU2014367924B2 (en) | 2019-05-23 |
JP2015134704A (ja) | 2015-07-27 |
EP3085680A4 (en) | 2017-08-02 |
EP3085680A1 (en) | 2016-10-26 |
US20160262381A1 (en) | 2016-09-15 |
AU2014367924C1 (en) | 2019-09-05 |
CN105764873A (zh) | 2016-07-13 |
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