JPH10139607A - Granular agrochemical wettable agent - Google Patents
Granular agrochemical wettable agentInfo
- Publication number
- JPH10139607A JPH10139607A JP8311257A JP31125796A JPH10139607A JP H10139607 A JPH10139607 A JP H10139607A JP 8311257 A JP8311257 A JP 8311257A JP 31125796 A JP31125796 A JP 31125796A JP H10139607 A JPH10139607 A JP H10139607A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- ammonium sulfate
- wettable powder
- dextrin
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、農園芸用殺虫剤として
広く使用されている、O,S−ジメチル−N−アセチル
ホスホロアミドチオエート(以下「アセフェート」とい
う。)を含有する農薬粒状水和剤に関する。さらに詳し
くは、農薬粒状水和剤の薬液調製時に水和性、溶解性を
はやくすることにより薬液の調製を容易にし、散布液が
ムラなく作物や害虫に付着して安定した殺虫効果が得ら
れるようにした農薬粒状水和剤に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a granular pesticide containing O, S-dimethyl-N-acetylphosphoramidothioate (hereinafter referred to as "acephate") which is widely used as an agricultural and horticultural insecticide. For wettable powders. More specifically, the preparation of a chemical solution of a pesticide granular wettable powder at the time of preparation of the chemical solution facilitates the preparation of the chemical solution by facilitating hydration and solubility, and a stable insecticidal effect can be obtained by evenly applying the spray liquid to crops and pests. The present invention relates to a pesticidal granular wettable powder as described above.
【0002】[0002]
【従来の技術】農薬水和剤は水に希釈して薬液を調製す
るとき、粉塵が発生することがある。この問題点を解決
するために、水和剤の粒状化が数多く検討され、次のよ
うな粒状水和剤が知られている。2. Description of the Related Art When a pesticide wettable powder is diluted with water to prepare a drug solution, dust may be generated. In order to solve this problem, many granulations of wettable powders have been studied, and the following granular wettable powders are known.
【0003】 特開昭51−1649号公報 農薬活性成分にデンプンおよび硫酸アンモニウムなどの
水溶性無機塩を含有する粒状の農薬水和剤。[0003] A granular wettable powder containing a water-soluble inorganic salt such as starch and ammonium sulfate as an active ingredient of an agricultural chemical.
【0004】 特開平3−193702号公報 植物保護剤と特定の固体湿潤剤および/またはアンモニ
ウム塩を含有してなる、良好な懸濁物を形成する水分散
性顆粒。[0004] Water-dispersible granules forming a good suspension, comprising a plant protective agent and a specific solid wetting agent and / or ammonium salt.
【0005】 特開平6−92803号公報 水溶性農薬活性成分、乳糖および界面活性剤とを必須成
分とする水溶性農薬顆粒剤。JP-A-6-92803 A water-soluble pesticide granule comprising a water-soluble pesticide active ingredient, lactose and a surfactant as essential components.
【0006】 特開平6−128102号公報 農薬活性成分および珪藻土を含有し、好ましくは界面活
性剤をさらに含有する新規組成物を押し出し造粒法によ
って創製してなる粒状水和剤。JP-A-6-128102 A granular wettable powder obtained by extruding a novel composition containing an agricultural chemical active ingredient and diatomaceous earth, preferably further containing a surfactant, by extrusion granulation.
【0007】またデンプンの加水分解物を用いた固形製
剤については次のものなどが挙げられる。The following are examples of solid preparations using a starch hydrolyzate.
【0008】 特開昭60−36402号公報 澱粉加水分解物と、海藻抽出物、植物性種子粘質物、植
物性果実粘質物、植物性樹脂様粘質物、微生物産性粘質
物、水溶性もしくは水分散性蛋白質、セルロース誘導体
および水溶性合成高分子からなる群から選ばれた1種ま
たは2種以上の高分子物質の水分散液のドラムドライヤ
ー乾燥粉末に、農薬活性成分と界面活性剤とを吸着させ
てなることを特徴とする、粉末状の農薬組成物。JP, 60-36402, A starch hydrolyzate, seaweed extract, vegetable seed mucilage, vegetable fruit mucous, vegetable resinous mucous, microbial mucilage, water-soluble or water-soluble Agrochemical active ingredients and surfactants are adsorbed to a drum dryer dry powder of an aqueous dispersion of one or more polymer substances selected from the group consisting of dispersible proteins, cellulose derivatives and water-soluble synthetic polymers. A pesticidal composition in the form of a powder, characterized in that it is made to be produced by the method.
【0009】 特開平3−47103号公報 融点が70℃以下の農薬活性成分と界面活性剤とデキス
トリンおよび/または乳糖と水とを必須成分とする、水
性乳濁液の噴霧乾燥物を含有する農薬固形乳剤。[0009] JP-A-3-47103 [0009] A pesticide containing a spray-dried aqueous emulsion containing, as essential components, an active ingredient of a pesticide having a melting point of 70 ° C or lower, a surfactant and dextrin and / or lactose and water. Solid emulsion.
【0010】[0010]
【発明が解決しようとする課題】従来の農薬粒状水和剤
は、水中に投入しても水和性、溶解性が悪く十分に撹拌
しても完全な分散液が得られなかったり、水和剤として
の性質を十分に発揮できないといった問題があり、必ず
しも十分満足しうるものではない。The conventional water dispersible agricultural chemical granules are poor in hydration and solubility even when poured into water, so that a complete dispersion cannot be obtained even when sufficiently stirred, There is a problem that the properties as an agent cannot be sufficiently exhibited, and it is not always satisfactory.
【0011】したがって、農薬粒状水和剤を薬液調製時
に水中に投入すると、直ちに水和、溶解する農薬粒状水
和剤の開発が要望されている。[0011] Therefore, there is a need for the development of a pesticidal granular wettable powder that can be hydrated and dissolved immediately when the pesticide granular wettable powder is put into water at the time of preparing a drug solution.
【0012】[0012]
【課題を解決するための手段】本発明者らは、これらの
問題を解決すべく鋭意研究した。その結果、殺虫活性成
分としてアセフェートを含有し、これに重合度が30以
下のデキストリン(以下、ことわりのないかぎり「低重
合デキストリン」という。)および硫酸アンモニウムを
配合して混合し、常法により造粒して得られた農薬粒状
水和剤は前記の問題点を解決し、水和性、溶解性をよく
しうることを見いだし、本発明を完成させた。Means for Solving the Problems The present inventors have made intensive studies to solve these problems. As a result, acephate was contained as an insecticidal active ingredient, and a dextrin having a degree of polymerization of 30 or less (hereinafter, referred to as “low-polymerized dextrin” unless otherwise specified) and ammonium sulfate were blended and mixed, followed by granulation by a conventional method. The water dispersible agricultural chemical granule obtained by the method described above solved the above-mentioned problems, and found that the wettability and solubility could be improved, thereby completing the present invention.
【0013】なお、ここでいう重合度は、平均重合度を
いう。The term "degree of polymerization" used herein means an average degree of polymerization.
【0014】本発明の農薬粒状水和剤において、粒剤の
粒径は特に限定されるものではなく、また、形状は農薬
製剤の分野で一般的に粒剤といわれるもののほか、錠
剤、丸薬などのいかなるものでもよい。In the pesticidal water dispersible granules of the present invention, the particle size of the granules is not particularly limited, and in addition to the shape generally referred to as granules in the field of pesticide preparations, tablets, pills, etc. Any one of
【0015】また農薬粒状水和剤の調製は、通常農薬の
製剤化で使用される押し出し造粒機や転動造粒機などを
用いて行われる。Preparation of the pesticidal granular wettable powder is carried out using an extrusion granulator, a tumbling granulator or the like, which is usually used in formulating pesticides.
【0016】そして、本発明の農薬粒状水和剤の水での
希釈倍率、散布薬液量、希釈液の散布方法などは市販の
アセフェート水和剤に準ずればよい。The dilution ratio of the pesticidal water dispersible powder of the present invention in water, the amount of the sprayed liquid, the method of spraying the diluent, and the like may be the same as those of a commercially available acephate wettable powder.
【0017】[0017]
【実施例】本発明の農薬粒状水和剤は、殺虫活性成分と
してのアセフェート、低重合デキストリンおよび硫酸ア
ンモニウムから構成される。DETAILED DESCRIPTION OF THE INVENTION The pesticidal water dispersible powder of the present invention is composed of acephate, a low polymerized dextrin and ammonium sulfate as an insecticidal active ingredient.
【0018】本発明に使用される低重合デキストリン
は、小麦デンプン、バレイショデンプン、トウモロコシ
デンプンなどの天然デンプン、アミロースやアミロペリ
チン分解物、エーテル化デンプン、エステル化デンプン
などの各種デンプンおよびその誘導体を常法に従って酸
加水分解、アルカリ加水分解、酵素加水分解、またはこ
れらの組み合わせによって加水分解して得られたデキス
トリンのうち、重合度が30以下の低重合デキストリン
を常法により得たものである。ここでいう重合度は3,
5−ジニトロサリチル酸法などの常法により測定すれば
よい。The low-polymerized dextrin used in the present invention can be obtained by a conventional method using various starches such as wheat starch, potato starch, corn starch, and other starches such as amylose and amyloperitin degradation products, etherified starch and esterified starch. Among the dextrins obtained by hydrolysis by acid hydrolysis, alkali hydrolysis, enzymatic hydrolysis, or a combination thereof, low-polymerized dextrins having a degree of polymerization of 30 or less are obtained by a conventional method. The polymerization degree here is 3,
It may be measured by a conventional method such as a 5-dinitrosalicylic acid method.
【0019】また、この低重合デキストリンを含有して
なる市販品が使用できる。A commercially available product containing this low-polymerized dextrin can be used.
【0020】本発明の農薬粒状水和剤で使用するデキス
トリンは、水溶解性を向上させる観点から重合度30以
下の低重合デキストリンがよい。そして好ましくは重合
度が15以下、特に10〜3のものが好ましい。The dextrin used in the water dispersible agricultural chemical granule of the present invention is preferably a low-polymerized dextrin having a degree of polymerization of 30 or less from the viewpoint of improving water solubility. Preferably, the degree of polymerization is 15 or less, particularly preferably 10 to 3.
【0021】これらの例としては、マルトデキストリ
ン、アクロデキストリン、エリトロデキストリンなどと
称されるものが含まれ、なかでもマルトデキストリンが
好ましい。そしてより具体的には、商品名「アミコール
No.6H」「アミコールNo.1」「アミコールN
o.3L」(日澱化学株式会社製の商品名)などとして
市販されている種々の品位のものなどが挙げられる。Examples of these include those called maltodextrin, acrodextrin, erythrodextrin and the like, with maltodextrin being preferred. More specifically, the product names “Amicol No. 6H”, “Amicol No. 1”, “Amicol N”
o. 3L "(trade name, manufactured by Nisset Chemical Co., Ltd.) and the like.
【0022】低重合デキストリンの使用量は、製剤重量
に対して3〜20重量%、好ましくは5〜10重量%で
ある。The amount of the low-polymerized dextrin used is 3 to 20% by weight, preferably 5 to 10% by weight, based on the weight of the preparation.
【0023】本発明に使用される硫酸アンモニウムは、
顆粒状、粉末状の何れの形状でも問題なく使用できる
が、アセフェート原末、低重合デキストリンと混合する
ときによく混ざりやすい粉末状の方が好ましい。The ammonium sulfate used in the present invention is:
Any form of granules or powders can be used without any problem, but powders that are easily mixed when mixed with the raw acephate powder or low-polymerized dextrin are preferable.
【0024】硫酸アンモニウムの使用量は、製剤重量に
対して5〜90重量%、好ましくは30〜50重量%で
ある。The amount of ammonium sulfate used is 5 to 90% by weight, preferably 30 to 50% by weight, based on the weight of the preparation.
【0025】界面活性剤は、必要により配合することが
でき、下記に示す農薬製剤に通常使用される非イオン性
界面活性剤、陰イオン性界面活性剤、陽イオン界面活性
剤および両性界面活性剤などが挙げられる。これらの界
面活性剤は単独または併用してもよい。Surfactants can be blended as required, and nonionic surfactants, anionic surfactants, cationic surfactants and amphoteric surfactants usually used in the following agricultural chemical formulations. And the like. These surfactants may be used alone or in combination.
【0026】非イオン界面活性剤の例 アルキルエーテル、ポリオキシエチレンアルキルアリー
ルエーテル、ポリオキシエチレンスチリルフェニルエー
テル、ポリオキシエチレンアルキルエステル、ポリオキ
シエチレンソルビタンアルキレート、ポリオキシエチレ
ンフェニルエーテルポリマー、ポリオキシエチレンアリ
ールフェニルエーテル、ポリオキシエチレンアルキレン
グリコール、ポリオキシエチレンポリオキシプロピレン
ブロックポリマー、など。Examples of nonionic surfactants : alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl phenyl ether, polyoxyethylene alkyl ester, polyoxyethylene sorbitan alkylate, polyoxyethylene phenyl ether polymer, polyoxyethylene Aryl phenyl ether, polyoxyethylene alkylene glycol, polyoxyethylene polyoxypropylene block polymer, and the like.
【0027】陰イオン界面活性剤の例 リグニンスルホン酸塩、アルキルアリールスルホン酸
塩、ジアルキルスルホサクシネート、ポリオキシエチレ
ンアルキルアリールエーテルサルフェート、アルキルナ
フタレンスルホン酸塩、ポリオキシエチレンスチリルフ
ェニルエーテルサルフェート、など。 Examples of anionic surfactants : lignin sulfonate, alkyl aryl sulfonate, dialkyl sulfosuccinate, polyoxyethylene alkyl aryl ether sulfate, alkyl naphthalene sulfonate, polyoxyethylene styryl phenyl ether sulfate, and the like.
【0028】陽イオン界面活性剤および両性界面活性剤
の例 アルキルアミン塩、第四級アンモニウム塩アルキルベタ
イン、アミンオキサイド、など。 Cationic and amphoteric surfactants
Examples of alkyl amine salts, quaternary ammonium salts alkyl betaines, amine oxides, and the like.
【0029】また、必要により配合される補助剤の例と
しては、アセフェートの安定化剤、造粒性向上のために
添加する造粒助剤、ホワイトカーボンなどの吸油性保持
剤、水に希釈したときに散布液の判別用の食用青色1号
などの水溶性の色素などが挙げられ、これらは併用する
ことができる。Examples of auxiliary agents that may be added as required include stabilizers for acephate, a granulating auxiliary agent added for improving granulation properties, an oil-absorbing retainer such as white carbon, and a water-diluting agent. Sometimes, a water-soluble pigment such as Food Blue No. 1 for discriminating a spray liquid is used, and these can be used in combination.
【0030】次に、本発明の農薬粒状水和剤の調製方法
を説明するが、調製方法は特に限定されず、農薬固形製
剤を調製する方法として従来より知られた、押し出し造
粒方法、転動造粒方法などで調製できる。その例とし
て、押し出し造粒の方法による場合には、例えば次の工
程〜から成る方法によって調製できる。Next, the method for preparing the pesticidal granular wettable powder of the present invention will be described. However, the preparation method is not particularly limited, and the extrusion granulation method and the inverting method, which are conventionally known as a method for preparing a pesticidal solid preparation, are described. It can be prepared by a dynamic granulation method or the like. For example, in the case of the extrusion granulation method, it can be prepared, for example, by a method comprising the following steps.
【0031】工程:アセフェート原末、低重合デキス
トリン、硫酸アンモニウム粉砕品および必要により界面
活性剤等の補助剤を加えてよく混合し、粉末状原料組成
物を得る。Step: Raw acephate, low-polymerized dextrin, ground ammonium sulfate, and if necessary, an auxiliary agent such as a surfactant, are added and mixed well to obtain a powdery raw material composition.
【0032】工程:この粉末状原料組成物に適当量の
水を加えて行き、双腕ニーダーにてよく混練後、バスケ
ット型押し出し造粒機にて造粒する。Step: An appropriate amount of water is added to the powdery raw material composition, the mixture is kneaded well in a double-arm kneader, and then granulated by a basket-type extrusion granulator.
【0033】工程:造粒後、整粒、乾燥を行い、篩別
し、本発明の農薬粒状水和剤を得る。Step: After granulation, sieving and drying are performed, followed by sieving to obtain the pesticidal wettable powder of the present invention.
【0034】次に、本発明を実施例により具体的に説明
するが、本発明はこれらに限定されるものではない。Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.
【0035】また、実施例中、「部」とあるのはすべて
重量部を意味する。In the examples, "parts" means "parts by weight".
【0036】実施例1 アセフェート原末50部、低重合デキストリン(重合度
約9〜11)(日澱化学株式会社の商品名「アミコール
No.6H」)5部、硫酸アンモニウム(宇部興産株
式会社製)45部を一緒にハンマーミル(不二パウダル
株式会社製)で混合し、粉末状原料組成物を得る。この
粉末状原料組成物を双腕ニーダー(不二パウダル株式会
社製)に投入し、7部の水を加えてよく混練後、1mm
のバスケット型押し出し造粒機(日本薬業株式会社製)
にて、造粒、整粒後乾燥させ、農薬粒状水和剤を得た。Example 1 50 parts of raw acephate powder, 5 parts of low-polymerized dextrin (degree of polymerization: about 9 to 11) (trade name of “Amicol No. 6H” of Nisseki Chemical Co., Ltd.), ammonium sulfate (manufactured by Ube Industries, Ltd.) 45 parts are mixed together by a hammer mill (manufactured by Fuji Paudal Co., Ltd.) to obtain a powdery raw material composition. This powdery raw material composition was put into a double-arm kneader (manufactured by Fuji Paudal Co., Ltd.), and after adding 7 parts of water and kneading well, 1 mm
Basket type extrusion granulator (Nippon Pharmaceutical Co., Ltd.)
After granulation and sizing, the mixture was dried to obtain a pesticidal granular wettable powder.
【0037】実施例2 アセフェート原末50部、低重合デキストリン(重合度
約5〜6)(日澱化学株式会社の商品名「アミコール
No.1」)10部、ポリオキシエチレン(POE)ノ
ニルフェニルエーテル(日本乳化剤株式会社製の界面活
性剤の商品名「ニューコール #560」)0.2部、
水に食用青色1号0.01部を加え、硫酸アンモニウム
39.79部を一緒にハンマーミルで混合し、粉末状の
原料組成物を得る。この粉末状原料組成物を双腕ニーダ
ーに投入し、7部の水を加えてよく混練後、1mmのバ
スケット型押し出し造粒機(日本薬業株式会社製)に
て、造粒、整粒後乾燥させ、農薬粒状水和剤を得た。Example 2 50 parts of raw acephate powder, low-polymerized dextrin (degree of polymerization: about 5 to 6) (trade name: AMICOL, manufactured by Nisse Chemical Corporation)
No. 1 ") 10 parts, 0.2 parts of polyoxyethylene (POE) nonylphenyl ether (trade name" Newcol # 560 "of a surfactant manufactured by Nippon Emulsifier Co., Ltd.)
0.01 parts of Food Blue No. 1 is added to water, and 39.79 parts of ammonium sulfate are mixed together by a hammer mill to obtain a powdery raw material composition. This powdery raw material composition is put into a double-arm kneader, 7 parts of water is added, and the mixture is kneaded well. It was dried to obtain a pesticide granular wettable powder.
【0038】実施例3 実施例2に準じて調製するが、低重合デキストリンを重
合度約3〜4(日澱化学工業株式会社製の商品名「アミ
コールNo.3L」)に変更した以外は実施例2に準じ
て調製し、農薬粒状水和剤を得た。Example 3 The procedure of Example 2 was repeated, except that the low-polymerized dextrin was changed to a degree of polymerization of about 3 to 4 (trade name “Amicol No. 3L” manufactured by Nissen Chemical Industry Co., Ltd.). It was prepared according to Example 2 to obtain a pesticide granular wettable powder.
【0039】実施例4 実施例1に準じて調製するが、低重合デキストリンを重
合度約27〜28(日澱化学工業株式会社製の商品名
「アミコールNo.7H」)に変更した以外は実施例1
に準じて調製し、農薬粒状水和剤を得た。Example 4 The procedure of Example 1 was repeated, except that the low-polymerized dextrin was changed to a polymerization degree of about 27 to 28 (trade name “Amicol No. 7H” manufactured by Nisseki Chemical Industry Co., Ltd.). Example 1
To obtain a pesticidal granular wettable powder.
【0040】比較例1 実施例1の低重合デキストリン5部をカルボキシメチル
セルロース(第一工業製薬株式会社の商品名「セロゲン
6A」)5部に変更した以外は実施例1に準じて調製
し、農薬粒状水和剤を得た。Comparative Example 1 An agricultural chemical was prepared in the same manner as in Example 1 except that 5 parts of the low-polymerized dextrin of Example 1 was changed to 5 parts of carboxymethylcellulose (trade name “Selogen 6A” of Daiichi Kogyo Seiyaku Co., Ltd.). A granular wettable powder was obtained.
【0041】比較例2 実施例1の低重合デキストリン5部を黄色デキストリン
(日澱化学株式会社の商品名「赤玉デキストリンNo.
102」)5部に変更した以外は実施例1に準じて調製
し、農薬粒状水和剤を得た。Comparative Example 2 5 parts of the low-polymerized dextrin of Example 1 was replaced with yellow dextrin (trade name “Akadama dextrin No.
102 ") It was prepared in the same manner as in Example 1 except that the amount was changed to 5 parts to obtain an agricultural chemical particulate wettable powder.
【0042】比較例3 実施例1の低重合デキストリン5部をポリビニルアルコ
ール(日本合成化学株式会社の商品名「ゴーセノールG
L−05S」)3部に変更し、硫酸アンモニウム45部
を47部とした以外は実施例1に準じて調製し、農薬粒
状水和剤を得た。Comparative Example 3 5 parts of the low-polymerized dextrin of Example 1 was replaced with polyvinyl alcohol (trade name “GOHSENOL G” of Nippon Synthetic Chemical Company, Ltd.)
L-05S ") was prepared in the same manner as in Example 1 except that the amount was changed to 3 parts and the amount of ammonium sulfate was changed to 45 parts to obtain 47 parts of an agricultural chemical particulate wettable powder.
【0043】比較例4 実施例2の低重合デキストリン10部をトウモロコシデ
ンプン10部に変更した以外は実施例2に準じて調製
し、農薬粒状水和剤を得た。Comparative Example 4 An agricultural chemical granular wettable powder was obtained in the same manner as in Example 2 except that 10 parts of the low-polymerized dextrin of Example 2 was changed to 10 parts of corn starch.
【0044】比較例5 実施例2の硫酸アンモニウム39.79部をグルコース
に変更した以外は実施例2に準じて調製し、農薬粒状水
和剤を得た。Comparative Example 5 A pesticidal granular wettable powder was obtained in the same manner as in Example 2 except that 39.79 parts of ammonium sulfate in Example 2 was changed to glucose.
【0045】比較例6 実施例2の硫酸アンモニウム39.79部をラクトース
に変更した以外は実施例2に準じて調製し、農薬粒状水
和剤を得た。Comparative Example 6 The procedure of Example 2 was repeated, except that 39.79 parts of ammonium sulfate in Example 2 was changed to lactose, to give an agricultural chemical particulate wettable powder.
【0046】比較例7 実施例2の硫酸アンモニウム39.79部をグラニュー
糖粉砕品に変更した以外は実施例2に準じて調製し、農
薬粒状水和剤を得た。Comparative Example 7 A pesticidal granular wettable powder was prepared in the same manner as in Example 2 except that 39.79 parts of ammonium sulfate in Example 2 was changed to pulverized granulated sugar.
【0047】比較例8 実施例1の硫酸アンモニウム45部を珪藻土44.8部
とPOEノニルフェニルエーテル0.2部に変更した以
外は実施例1に準じて調製し、農薬粒状水和剤を得た。Comparative Example 8 The procedure of Example 1 was repeated, except that 45 parts of ammonium sulfate was changed to 44.8 parts of diatomaceous earth and 0.2 part of POE nonylphenyl ether to obtain a water dispersible agricultural chemical granule. .
【0048】比較例9 実施例1の低重合デキストリン5部をプルラン(林原株
式会社の商品名「トリグルコA」)5部に、硫酸アンモ
ニウム45部を珪藻土44.8部とPOEノニルフェニ
ルエーテル0.2部に変更した以外は実施例1に準じて
調製し、農薬粒状水和剤を得た。Comparative Example 9 5 parts of the low-polymerized dextrin of Example 1 was added to 5 parts of pullulan (trade name "Trigluco A" of Hayashibara Co., Ltd.), 45 parts of ammonium sulfate were added to 44.8 parts of diatomaceous earth, and POE nonylphenyl ether 0.2 Except for having changed to a part, it prepared according to Example 1 and obtained the pesticidal granular wettable powder.
【0049】比較例10 実施例1の低重合デキストリン5部をアラビアガム(三
晶株式会社の商品名「アラビアガム HP」)5部に、
硫酸アンモニウム45部を水和剤用クレー44.8部と
POEノニルフェニルエーテル0.2部に変更した以外
は実施例1に準じて調製し、農薬粒状水和剤を得た。Comparative Example 10 5 parts of the low-polymerized dextrin of Example 1 was added to 5 parts of gum arabic (trade name “Arabic gum HP” of Sanshin Co., Ltd.).
Except that 45 parts of ammonium sulfate was changed to 44.8 parts of wettable clay and 0.2 part of POE nonylphenyl ether, the same procedure was followed as in Example 1 to obtain a pesticidal granular wettable powder.
【0050】比較例11 実施例1の硫酸アンモニウム45部を尿素に変更した以
外は実施例1に準じて調製を試みたが、造粒後、乾燥で
きず、農薬粒状水和剤を得ることができなかった。Comparative Example 11 Preparation was attempted according to Example 1 except that 45 parts of ammonium sulfate in Example 1 were changed to urea. However, after granulation, the preparation could not be dried, and an agricultural chemical granular wettable powder could be obtained. Did not.
【0051】次に、本発明の粒状水和剤の有用性を試験
例により示す。Next, the usefulness of the particulate wettable powder of the present invention will be shown by test examples.
【0052】試験例1(農薬粒状水和剤の物理性測定) 実施例1〜4に準じて調製した製剤の各100mgを、
それぞれ20℃の3度硬水を100ml入れた100m
l容量の有栓メスシリンダーに入れ、該製剤が水没する
時間を水和時間とし、該製剤が水底に沈殿後シリンダー
を静かに転倒させ、粒が完全に崩壊するまでのシリンダ
ー転倒回数を溶解時間として測定した。Test Example 1 ( Measurement of physical properties of pesticide granular wettable powder ) 100 mg of each of the preparations prepared according to Examples 1 to 4 was used.
100m each containing 100ml of 3 degree hard water at 20 ° C
Put in a 1-volume stoppered graduated cylinder and let the formulation submerge in time as the hydration time, gently invert the cylinder after the formulation has settled to the bottom of the water, and determine the number of cylinder inversions until the particles are completely disintegrated. Was measured.
【0053】そして、シリンダーを静置し、30分後、
60分後、120分後の農薬粒状水和剤の希釈液の状態
を観察し、120分後に沈降物がある場合は再度シリン
ダーの転倒を行い、沈降物が再懸濁するか否か観察し、
再懸濁するものについては再分散するまでのシリンダー
転倒回数を測定し再分散性を評価した。Then, let the cylinder stand still, and after 30 minutes,
After 60 minutes, observe the state of the diluted liquid of the pesticide granular wettable powder after 120 minutes. If there is a sediment after 120 minutes, turn the cylinder over again and observe whether the sediment is resuspended. ,
For the resuspension, the number of times of cylinder inversion until redispersion was measured to evaluate redispersibility.
【0054】そして、比較のため比較例1〜11で調製
した製剤各100mgを、実施例1〜4と同様に操作
し、測定した。For comparison, 100 mg of each of the preparations prepared in Comparative Examples 1 to 11 was measured in the same manner as in Examples 1 to 4.
【0055】また対照として、対照例である市販のアセ
フェート水和剤も同様に測定した。ただし、剤型が粒状
でないため溶解時間の測定は行わなかった。As a control, a commercially available acephate wettable powder as a control was also measured in the same manner. However, the dissolution time was not measured because the dosage form was not granular.
【0056】得られた結果を表1に示す。Table 1 shows the obtained results.
【0057】[0057]
【表1】 [Table 1]
【0058】[0058]
【発明の効果】本発明の農薬粒状水和剤は、次のような
利点を有する。 製剤の計量時あるいは水希釈時に粉塵がなく、水和剤
に比べ安全性、作業性が大幅に改善される。 従来の水和剤に比べ、水和時間が大幅に短縮される。 従来の粒状水和剤に比べ、溶解時間が短縮される。 薬液散布後の植物への汚染が少ない。 一度調製した薬液の懸垂安定性が高く、薬液散布中に
沈降することなく、均一に散布ができる。 従来の農薬粒剤の製造方法をそのまま、また薬剤処理
方法についても従来技術をそのまま利用できる。The pesticidal water dispersible powder of the present invention has the following advantages. There is no dust when the preparation is weighed or diluted with water, and the safety and workability are greatly improved compared to wettable powders. The hydration time is significantly reduced as compared to conventional wettable powders. The dissolution time is reduced as compared with the conventional granular wettable powder. Low contamination to plants after spraying chemicals. The suspension stability of the chemical solution once prepared is high, and the chemical solution can be sprayed uniformly without settling during spraying. The conventional method for producing pesticide granules can be used as it is, and the conventional technology can also be used as it is for the chemical treatment method.
Claims (1)
N−アセチルホスホロアミドチオエート、重合度が30
以下のデキストリンおよび硫酸アンモニウムを配合して
なることを特徴とする、農薬粒状水和剤。1. An insecticidal active ingredient comprising O, S-dimethyl-
N-acetyl phosphoramidothioate, having a degree of polymerization of 30
A water dispersible agricultural chemical granule characterized by comprising the following dextrin and ammonium sulfate.
Priority Applications (1)
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JP31125796A JP3660450B2 (en) | 1996-11-08 | 1996-11-08 | Agrochemical granular wettable powder |
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JP31125796A JP3660450B2 (en) | 1996-11-08 | 1996-11-08 | Agrochemical granular wettable powder |
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JPH10139607A true JPH10139607A (en) | 1998-05-26 |
JP3660450B2 JP3660450B2 (en) | 2005-06-15 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10218704A (en) * | 1997-02-13 | 1998-08-18 | Hokko Chem Ind Co Ltd | Granular wettable powder of improved agrochemical |
JP2003313102A (en) * | 2002-04-22 | 2003-11-06 | Sankyo Agro Kk | Agrochemical granular wettable powder |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57109702A (en) * | 1980-12-26 | 1982-07-08 | Kumiai Chem Ind Co Ltd | Powdered agricultural chemical emulsion |
JPS6036402A (en) * | 1983-08-09 | 1985-02-25 | Nichiden Kagaku Kk | Composition of agricultural chemical |
JPH01157903A (en) * | 1987-12-15 | 1989-06-21 | Dai Ichi Kogyo Seiyaku Co Ltd | Dispersant composition for agricultural chemical wettable powder |
JPH03236302A (en) * | 1990-02-14 | 1991-10-22 | Sankyo Co Ltd | Granular agricultural chemical water-dispersible agent |
JPH05132401A (en) * | 1991-02-12 | 1993-05-28 | Matsutani Kagaku Kogyo Kk | Agricultural chemical preparation and its production |
JPH072608A (en) * | 1993-06-16 | 1995-01-06 | Sumitomo Chem Co Ltd | Agrichemical solid formulation |
-
1996
- 1996-11-08 JP JP31125796A patent/JP3660450B2/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57109702A (en) * | 1980-12-26 | 1982-07-08 | Kumiai Chem Ind Co Ltd | Powdered agricultural chemical emulsion |
JPS6036402A (en) * | 1983-08-09 | 1985-02-25 | Nichiden Kagaku Kk | Composition of agricultural chemical |
JPH01157903A (en) * | 1987-12-15 | 1989-06-21 | Dai Ichi Kogyo Seiyaku Co Ltd | Dispersant composition for agricultural chemical wettable powder |
JPH03236302A (en) * | 1990-02-14 | 1991-10-22 | Sankyo Co Ltd | Granular agricultural chemical water-dispersible agent |
JPH05132401A (en) * | 1991-02-12 | 1993-05-28 | Matsutani Kagaku Kogyo Kk | Agricultural chemical preparation and its production |
JPH072608A (en) * | 1993-06-16 | 1995-01-06 | Sumitomo Chem Co Ltd | Agrichemical solid formulation |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10218704A (en) * | 1997-02-13 | 1998-08-18 | Hokko Chem Ind Co Ltd | Granular wettable powder of improved agrochemical |
JP2003313102A (en) * | 2002-04-22 | 2003-11-06 | Sankyo Agro Kk | Agrochemical granular wettable powder |
Also Published As
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JP3660450B2 (en) | 2005-06-15 |
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