JPS60193904A - Agricultural chemical preparation of suspension type in water - Google Patents

Agricultural chemical preparation of suspension type in water

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Publication number
JPS60193904A
JPS60193904A JP59050361A JP5036184A JPS60193904A JP S60193904 A JPS60193904 A JP S60193904A JP 59050361 A JP59050361 A JP 59050361A JP 5036184 A JP5036184 A JP 5036184A JP S60193904 A JPS60193904 A JP S60193904A
Authority
JP
Japan
Prior art keywords
water
agricultural chemical
suspension
suspended
adjuster
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.)
Pending
Application number
JP59050361A
Other languages
Japanese (ja)
Inventor
Masayoshi Imai
正芳 今井
Kozo Tsuji
辻 孝三
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP59050361A priority Critical patent/JPS60193904A/en
Publication of JPS60193904A publication Critical patent/JPS60193904A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:The titled stable agricultural chemical preparation having a small amount of a surface active agent added, and small average particle diameter, obtained by blending previously a slightly water-soluble pyrethroid agricultural chemical active component with a surface active agent of phosphoric ester type and a pH adjustor, adding water to the blend. CONSTITUTION:1-50wt% one or more slightly water-soluble pyrethroid agricultural chemical active components are blended with 8-50wt% based on the agricultural chemical active components of one or more surface active agents of phosphoric ester type (e.g., GAFAC RE-610, etc.) shown by the formula (R is 8- 30C alkyl, or 8-30C alkylphenyl; n is 4-50; m is 1 or 2) and 0-5wt% based on the agricultural chemical active components of a pH adjustor such as magnesium hydroxide, and water is added to the blend to obtain an emulsion comprising the agricultural chemical active components having <1mu average particle diameter. EFFECT:Having stability for a long period, being prepared easily.

Description

【発明の詳細な説明】 未満の極めて安定な水中懸濁型農薬製剤に関する。[Detailed description of the invention] This invention relates to extremely stable water-suspended pesticide formulations of less than or equal to 10%.

これまでに、農薬製剤としては、乳剤、水和剤、粉剤、
粒剤等が知られており、それぞれの使用目的および施用
場面に応じて種々の適用がなされている。
Until now, agrochemical formulations include emulsions, wettable powders, powders,
Granules and the like are known, and are used in various ways depending on the intended use and application situation.

これら農薬製剤のうち、乳剤は一般に農薬原体と多量の
界面活性剤および有機溶剤から成り、その製剤中に多量
の有機溶剤が含まれていることから、引火性などの問題
が生じ、製造、保管輸送等に際し、種々の制約を余儀な
くされ、さらに悪臭、大苗、小動物に対する毒性や刺激
性、作物に対する薬害等の欠点を有する場合が多い。
Among these agrochemical formulations, emulsions generally consist of a pesticide active ingredient, a large amount of surfactant, and an organic solvent, and since the formulation contains a large amount of organic solvent, problems such as flammability arise, and manufacturing and They are subject to various restrictions during storage and transportation, and they often have drawbacks such as bad odor, toxicity and irritation to large seedlings and small animals, and phytotoxicity to crops.

一方、有機溶剤を用いない製剤として粉末状の水和剤が
あるが、これも散布液を調整する際に、微粉末が飛散し
て取扱いが不便であること、空中散布等における高濃度
少量散布(10アール当り800 ml以下)が不可能
である等の欠点が否めない。
On the other hand, powdered wettable powders are available as formulations that do not use organic solvents, but these also have the disadvantages of being inconvenient to handle because the fine powder scatters when preparing the spray solution, and that they are sprayed in small amounts at high concentrations during aerial spraying. (800 ml or less per 10 ares) is undeniable.

以上の理由から有機溶剤、粉末状担体等の代わりに水を
基材として疎水性農薬活性成分を微粒子状に懸濁分散せ
しめた形態の懸濁状農薬製剤および水性乳剤が検討され
てきている。
For the above reasons, aqueous emulsions and suspension pesticide formulations in which hydrophobic pesticide active ingredients are suspended and dispersed in fine particles using water as a base material instead of organic solvents, powder carriers, etc. have been studied.

この種の組成物は液体として取り扱われるので、散布液
調製の際に粉塵の発生がなく、従来の液剤と同様に定量
的に取り扱うことが容易な上に、有機溶剤に起因する大
苗、小動物に対する毒性や刺激性、作物に対する薬害の
問題がなく、また、製造、保管、輸送時における火気等
に対する安全性も大きく改善され、取扱いが容易になる
Since this type of composition is handled as a liquid, it does not generate dust when preparing the spray solution, and can be easily handled quantitatively like conventional liquids. There is no problem of toxicity, irritation, or chemical damage to crops, and safety against fire during production, storage, and transportation is greatly improved, and handling becomes easier.

しかしながら、従来開発されてきているこれらの懸濁状
農薬製剤においては、その製造時に強力な機械的粉砕操
作が必要とされること、得られる製剤中の活性成分の平
均粒径が比較的大きい(1μ以上)こと、粘度が高いこ
とから製造時および施用時に取扱い難い場合があること
、水に対する分散性が劣ることなどの点で、必ずしも充
分なものとは言い難い。
However, these suspension pesticide formulations that have been developed so far require a strong mechanical crushing operation during their production, and the average particle size of the active ingredient in the resulting formulation is relatively large ( 1μ or more), its high viscosity may make it difficult to handle during production and application, and its dispersibility in water is poor, so it cannot necessarily be said to be sufficient.

また、水中油型農薬製剤として、特公昭46−2052
0号公報、特開昭49−54547号公報、特開昭52
−122628号公報等の水性乳剤があるが、これらの
ものは農薬活性成分と該農薬活性成分に対し等量以上の
多量の界面活性剤を用いて、水中に界面活性剤のミセル
を形成させそのミセル内に農薬活性成分を包含させた、
謂ゆる可溶上型の製剤であり、多量の界面活性剤の使用
を必要とすることから、コスト、作物に対する薬害、大
苗に対する毒性などの点でその使用が制限される。
In addition, as an oil-in-water type agricultural chemical formulation,
Publication No. 0, JP-A-49-54547, JP-A-52
There are aqueous emulsions such as those disclosed in Japanese Patent Publication No. 122628.These emulsions use a pesticide active ingredient and a large amount of surfactant equal to or more than the amount of the pesticide active ingredient to form micelles of the surfactant in water. Incorporating pesticide active ingredients into micelles,
Since it is a so-called soluble upper-type preparation and requires the use of a large amount of surfactant, its use is limited in terms of cost, chemical damage to crops, toxicity to large seedlings, etc.

本発明者らは、水中懸濁型農薬製剤のもつ有利な特徴を
いかしたまま、前述の欠点を改良すべく鋭意検討を重ね
た結果、水に難溶なピレスロイド系農薬活性成分を特定
のリン酸エステル系界面活性剤と予め混合した後、水を
添加することにより、界面活性剤の添加量を大巾に減じ
でも、容易に農薬活性成分の平均粒径が1μ未満の安定
な乳濁液が得られることを見い出し、本発明を完成する
に到った。
The present inventors have conducted intensive studies to improve the above-mentioned drawbacks while taking advantage of the advantageous features of water-suspended agricultural chemical formulations. By pre-mixing with an acid ester surfactant and then adding water, it is possible to easily create a stable emulsion with an average particle size of less than 1 μm even if the amount of surfactant added is significantly reduced. The present inventors have discovered that the following can be obtained, and have completed the present invention.

即ち、本発明は、水に難溶な1種以上のピレスロイド系
農薬活性成分を1〜50重量%、一般式(1) %式%() (式中、Rは炭素数8〜30のアルキル基または炭素数
8〜30のアルキルフェニル基を寞+w1. nL+A
Nに0の語数を裏わし−mはを、該ビレスロイ髪ド系農
薬活性成分に対し8〜50重量%およびpH調整剤を0
〜5重量%含有し、かつ農薬活性成分の平均粒径が1μ
未満であることを特徴とする安定な水中懸濁型農薬製剤
を提供するものである。
That is, the present invention contains 1 to 50% by weight of one or more pyrethroid pesticide active ingredients that are sparingly soluble in water, expressed by the general formula (1) % formula % () (wherein R is an alkyl group having 8 to 30 carbon atoms) group or an alkylphenyl group having 8 to 30 carbon atoms +w1.nL+A
N is the number of 0 words, and m is 8 to 50% by weight and pH adjuster of 0 to the Villethroide-based pesticide active ingredient.
Contains ~5% by weight, and has an average particle size of 1 μm of pesticide active ingredients.
To provide a stable aqueous suspension type agricultural chemical formulation characterized in that

本発明の水中懸濁型農薬製剤は、代表的には水に難溶な
1種以上のピレスロイド系農薬活性成分1〜50重量%
と、該ピレスロイド系農薬活性成分に対し8〜50重量
%の上記一般式(I)で示されるリン酸エステル系界面
活性剤の1種以上とを、予め常温または加温下に混合し
、均一とした後、攪拌下に水を添加することにより得る
ことができる。
The water-suspended agricultural chemical formulation of the present invention typically contains 1 to 50% by weight of one or more pyrethroid agricultural chemical active ingredients that are sparingly soluble in water.
and one or more phosphate ester surfactants represented by the general formula (I) in an amount of 8 to 50% by weight based on the pyrethroid agricultural active ingredient are mixed in advance at room temperature or under heating, and then uniformly mixed. It can be obtained by adding water under stirring.

また、本発明の水中懸濁型製剤においては、必要に応じ
て、農薬活性成分の安定性の点からpH調整剤や安定剤
を、また懸濁液の長期安定性をさらに向上させるために
懸濁安定剤を添加してもよいっ 本発明により得られた水中懸濁型農薬製剤は従来の水中
懸濁型製剤または水中可溶化型製剤に比べて、 0粒径が1μ未満と小さいために、分散安定性を保つた
めの増粘剤を本質的に必要とせず低粘度の製剤品を得る
ことができ、製剤品の高粘度から起こる取扱上の困難が
解消され、殊に従来の水中懸濁型製剤では、その高粘度
のために直接適用できなかったような一般の液剤用散布
機も任意に適用できる。
In addition, in the water-suspended formulation of the present invention, pH adjusters and stabilizers may be added as necessary to ensure the stability of the agrochemical active ingredient, and in order to further improve the long-term stability of the suspension. A turbidity stabilizer may be added.The water-suspended agricultural chemical formulation obtained by the present invention has a smaller zero particle size of less than 1μ compared to conventional water-suspended or water-solubilized formulations. , it is possible to obtain a low-viscosity pharmaceutical product that essentially does not require a thickener to maintain dispersion stability, and the handling difficulties caused by the high viscosity of the pharmaceutical product are eliminated. For cloudy formulations, a general liquid sprayer can be used as desired, which cannot be applied directly due to the high viscosity of the formulation.

■本発明による製剤は、その中に含まれる農薬活性成分
の粒径が極めて小さいため、水に希釈して使用する場合
でも分散安定性は全く変化しないかほとんど低下せず、
長時間安定であるため、施用に際し取り扱い易い。
■Since the particle size of the pesticide active ingredient contained in the formulation according to the present invention is extremely small, the dispersion stability does not change at all or hardly decreases even when used after being diluted with water.
Since it is stable for a long time, it is easy to handle during application.

■使用する界面活性剤の量が、可溶化型製剤に比べ非常
に少量ですみ、多量の界面活性剤使用によるコスト、作
物に対する薬害、人寄に対する毒性等の問題が少ない。
■The amount of surfactant used is very small compared to solubilized preparations, and there are fewer problems such as cost, chemical damage to crops, and toxicity to humans due to the use of large amounts of surfactant.

■製造においても、コロイドミル、サンドミル、高速ホ
モミキサー等の特殊な装置を必要とせず、通常の液剤に
使用するような一般の攪拌装置で容易に製造することが
できる。
(2) In production, there is no need for special equipment such as a colloid mill, sand mill, or high-speed homomixer, and the product can be easily produced using a general stirring device that is used for normal liquid preparations.

などの優れた特長を有する。It has excellent features such as:

以下に、本発明の水中懸濁型農薬製剤について詳細に説
明する。
Below, the water-suspended agricultural chemical formulation of the present invention will be explained in detail.

本発明に使用するピレスロイド系農薬活性成分は、大要
法のものがあげられるが、それぞれそれらのラセミ体、
光学異性体および/または幾何異性体、およびこれらを
任意の割合で含む混合物も含まれる。また、それぞれ単
独では常温において液体状でも固体状でも良く、常温ま
たは加温(80℃以下)下で混合することにより、均一
な液状を呈する組み合わせであれば何れも本発明の農薬
活性成分として適用できる。
The pyrethroid pesticide active ingredients used in the present invention include those listed in the general list, and their racemic forms,
Also included are optical isomers and/or geometric isomers, and mixtures containing these in arbitrary proportions. In addition, each may be in a liquid or solid state at room temperature alone, and any combination that exhibits a uniform liquid state when mixed at room temperature or under heating (80°C or less) can be applied as the agrochemical active ingredient of the present invention. can.

化合物番号 (1) α−シアノ−3−フェノキシベンジル 2−(
4−クロロフェニル)イソバレレート(2) α−シア
ノ−8−(4−フルオロフェノキシ)ベンジル 2,2
−ジメチル−8−(2,2−ジクロロビニル)シクロプ
ロパンカルボキシレート (8)α−シアノ−8−フェノキシベンジル クリサン
セメート (4)α−シアノ−8−フェノキシベンジル 2゜2−
ジメチル−8−(2,2−ジクロロビニル)シクロプロ
パンカルボキシレート(5) α−シアノ−3−フェノ
キシベンジル 2゜2.3.8−テトラメチルシクロプ
ロパンカルボキシレート (6) 8−フェノキシベンジル クリサンセメート (7) 8−フェノキシベンジル 2,2−ジメチル−
3−(2,2−ジクロロビニル)シフ(8) α−シア
ノ−8−フェノキシ−4−フルオロベンジル 2.2−
ジメチル−8−(2゜2−ジクロロビニル)シクロプロ
パンカルボキシレート (9) α−シアノ−8−フェノキシベンジル 2−(
p−(ジフルオロメトキシ)フェニル〕イソバレレート (10)α−シアノ−8−アニリノベンジル 2゜2−
ジメチル−8−(2,2−ジクロロビニル)シクロプロ
パンカルボキシレート(11) α−シアノ−8−アニ
リノ−4−フルオロベンジル 2.2−ジメチル−8−
(2゜2−ジクロロビニル)シクロプロパンカルボキシ
レート (12) α−シアノ−8−フェノキシベンジル 2゜
2−ジメチル−8−〔2−クロロ−2−(トリフルオロ
メチル)〕ビニルシクロプロパンカルボキシレート (18) 8−フェノキシベンジル 〔2−メチルー−
チル (14) α−シアノ−3−フェノキシベンジル 1−
(p−エトキシフェニル)−2,2−ジクロロシクロプ
ロパンカルボキシレート(15)α−シアノ−3−フェ
ノキシベンジル 5゜6−ペンゾー2.2−ジメチル−
スピロ−(2,4)ヘプト−5−エンカルボキシレート (16) 2−メチル−1−(3−フェノキシベンジル
オキシイミノ)プロピル−4−クロロベンゼン (17)α−シアノ−8−フェノキシベンジル シクロ
プロパン−(4−クロロフェニル)アセテート (18) α−シアノ−8−フェノキシベンジル 2(
4−tert−ブチルフェニル)イソバレレート (19) α−シアノ−3−フェノキシベンジル 2−
(8,4−メチレンジオキシフェニル)イソバレレート (20) N −(8,4,5,6−テトラヒドロフタ
リミド)メチルクリサンセメート (21) アレスロニル クリサンセメート(22) 
5−ベンジル−8−フリルメチル クリサンセメート (28) 2−メチル−4−オキソ−3−(2−プロピ
ニル)シクロベント−2−エニル クリサンセメート (25) 4−メチルヘプト−4−エン−1−イン−8
−イル クリサンセメート (26) α−シアノ−8−フェノキシベンジル 2゜
2−ジメチル−8−(2,2−ジブロモビニル)−シク
ロプロパンカルボキシレート(27) 5−ベンジル−
8−フリルメチル (1几)−シス−2,2−ジメチル
−3−(1−オキソ−5−チアシクロベント−2−イリ
リデンメチル)シクロプロパンカルボキシレート また必要に応じて使用され得るpH調整剤としては、水
酸化ナトリウム、水酸化カリウムなどのアルカリ金属水
酸化物、水酸化マグネシウム、水酸化カルシウムなどの
アルカリ土類金属水酸化物、リン酸塩、脂肪酸ジェタノ
ールアミン等が挙げられ、懸濁液の長期安定性の点で、
水酸化マグネシウム、水酸化カルシウムなどのアルカリ
土類金属水酸化物の使用が好ましい。
Compound number (1) α-cyano-3-phenoxybenzyl 2-(
4-chlorophenyl)isovalerate (2) α-cyano-8-(4-fluorophenoxy)benzyl 2,2
-Dimethyl-8-(2,2-dichlorovinyl)cyclopropanecarboxylate (8) α-cyano-8-phenoxybenzyl chrysansemate (4) α-cyano-8-phenoxybenzyl 2゜2-
Dimethyl-8-(2,2-dichlorovinyl)cyclopropanecarboxylate (5) α-cyano-3-phenoxybenzyl 2゜2.3.8-tetramethylcyclopropanecarboxylate (6) 8-phenoxybenzyl chrysanthe Mate (7) 8-phenoxybenzyl 2,2-dimethyl-
3-(2,2-dichlorovinyl) Schiff (8) α-cyano-8-phenoxy-4-fluorobenzyl 2.2-
Dimethyl-8-(2゜2-dichlorovinyl)cyclopropanecarboxylate (9) α-cyano-8-phenoxybenzyl 2-(
p-(difluoromethoxy)phenyl]isovalerate (10) α-cyano-8-anilinobenzyl 2゜2-
Dimethyl-8-(2,2-dichlorovinyl)cyclopropanecarboxylate (11) α-cyano-8-anilino-4-fluorobenzyl 2,2-dimethyl-8-
(2゜2-dichlorovinyl)cyclopropanecarboxylate (12) α-cyano-8-phenoxybenzyl 2゜2-dimethyl-8-[2-chloro-2-(trifluoromethyl)]vinylcyclopropanecarboxylate ( 18) 8-phenoxybenzyl [2-methyl-
Chill (14) α-cyano-3-phenoxybenzyl 1-
(p-ethoxyphenyl)-2,2-dichlorocyclopropanecarboxylate (15) α-cyano-3-phenoxybenzyl 5゜6-penzo-2,2-dimethyl-
Spiro-(2,4)hept-5-enecarboxylate (16) 2-Methyl-1-(3-phenoxybenzyloxyimino)propyl-4-chlorobenzene (17) α-cyano-8-phenoxybenzyl cyclopropane- (4-chlorophenyl)acetate (18) α-cyano-8-phenoxybenzyl 2(
4-tert-butylphenyl)isovalerate (19) α-cyano-3-phenoxybenzyl 2-
(8,4-Methylenedioxyphenyl)isovalerate (20) N-(8,4,5,6-tetrahydrophthalimido)methyl chrysanthemate (21) Allethronil chrysanthemate (22)
5-Benzyl-8-furylmethyl chrysanthemate (28) 2-methyl-4-oxo-3-(2-propynyl)cyclobent-2-enyl chrysanthemate (25) 4-methylhept-4-en-1- in-8
-yl chrysanthemate (26) α-cyano-8-phenoxybenzyl 2゜2-dimethyl-8-(2,2-dibromovinyl)-cyclopropanecarboxylate (27) 5-benzyl-
8-Furylmethyl (1 liter)-cis-2,2-dimethyl-3-(1-oxo-5-thiacyclobent-2-ylylidenemethyl)cyclopropanecarboxylate pH adjustment can also be used if necessary Examples of the agent include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkaline earth metal hydroxides such as magnesium hydroxide and calcium hydroxide, phosphates, fatty acid jetanolamine, etc. In terms of long-term stability of the suspension,
Preference is given to using alkaline earth metal hydroxides such as magnesium hydroxide and calcium hydroxide.

さらに、懸濁液の長期安定性をさらに向上させるために
必要に応じ使用される得る懸濁安定剤としては、例えば
ポリビニルアルコール、ゼラチン、ヒドロキシメチルセ
ルロース、メチルセルロース、プルラン等の水溶性高分
子および/またはその他の増粘剤が挙げられる。
Furthermore, suspension stabilizers that can be used as necessary to further improve the long-term stability of the suspension include water-soluble polymers such as polyvinyl alcohol, gelatin, hydroxymethylcellulose, methylcellulose, pullulan, and/or Other thickeners may be mentioned.

次に本発明を実施例および比較例でさらに詳細に説明す
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 explained in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto.

尚、実施例および比較例中において粒径の測定は、平均
粒径が1μ以上のものについては顕微鏡観察によりめ、
1μ未満のものについては、W、 He1perらの報
告(Journal of CoatingsTech
nology、 31巻、 1959年、200頁〜)
に基づき、日立分光光度計UV−820型を用い、可視
部の波長と吸光度の関係から重量平均粒径としてめた。
In addition, in the Examples and Comparative Examples, the particle size was measured by microscopic observation for particles with an average particle size of 1μ or more.
For those with a diameter of less than 1μ, a report by W. He1per et al. (Journal of Coatings Tech.
nology, vol. 31, 1959, p. 200~)
Based on this, the weight average particle size was determined from the relationship between visible wavelength and absorbance using a Hitachi spectrophotometer UV-820 model.

また、攪拌は小型4枚羽根をつけたLR−41型ラボス
ターラー(ヤマト科学製)を用いて行なった。
Further, stirring was performed using a LR-41 type laboratory stirrer (manufactured by Yamato Kagaku) equipped with four small blades.

実施例1 化合物(1)を1OfとGAFAC! BE−610(
リン酸エステル系界面活性剤、東邦化学社製)1.1f
とを60°Cで混合し均一とした後、攪拌を続けながら
イオン交換水88.9Nを20分で添加した。これを9
0ofのイオン交換水で希釈し、化合物(1)の1%の
懸濁液を得た。
Example 1 Compound (1) was mixed with 1Of and GAFAC! BE-610 (
Phosphate ester surfactant, manufactured by Toho Chemical Co., Ltd.) 1.1f
After mixing the mixture at 60°C to make it homogeneous, 88.9N of ion-exchanged water was added over 20 minutes while stirring. This is 9
The mixture was diluted with 0 of ion-exchanged water to obtain a 1% suspension of compound (1).

粒径は0.15μであった。この懸濁液は30°Cで1
0日間保存後も安定であった。
The particle size was 0.15μ. This suspension was heated to 1
It remained stable even after storage for 0 days.

fとを60℃で混合し均一とした後、イオン交換水45
gを15分で添加した。
After mixing with f at 60°C to make it homogeneous, add 45% of ion-exchanged water.
g was added in 15 minutes.

さらに攪拌を続けながら、水酸化マグネシウム0.2f
を加えpHを4.5に調整し室温まで冷却して化合物(
1)の5096懸濁液を得た。
Further, while stirring, add 0.2f of magnesium hydroxide.
was added to adjust the pH to 4.5, cooled to room temperature, and the compound (
A 5096 suspension of 1) was obtained.

粒径は0.19μであった。この懸濁液は80°Cで7
日間保存した後も安定であった。
The particle size was 0.19μ. This suspension was heated to 7°C at 80°C.
It remained stable even after storage for days.

実施例3 化合物(5)を20gとGAFAC! RE−960(
リン酸エステル系界面活性剤、東邦化学社製)2fとを
55°Cで混合し均一とした後、イオン交換水78Nを
20分で添加した。さらに水酸化マグネシウム90ηを
加えてpH調整した後、ポリビニルアルコール(平均重
合度1700、ケン化度88%二日本合成製)の8%水
溶液1ooFIを加えて化合物番号(5)の10%懸濁
液を得た。粒径は0.16μであった。この懸濁液は8
0℃で3ケ月保存後も全く安定であった。また上記懸濁
液を化合物(5)の濃度が0.01%となるように水で
希釈して得られた懸濁液は、80°CIO日間保存した
後も、沈澱・分離等は認められず安定であった。
Example 3 20g of compound (5) and GAFAC! RE-960(
A phosphate ester surfactant (manufactured by Toho Chemical Co., Ltd.) 2f was mixed at 55°C to make it homogeneous, and then 78N of ion-exchanged water was added over 20 minutes. After further adding 90η of magnesium hydroxide to adjust the pH, 1ooFI of an 8% aqueous solution of polyvinyl alcohol (manufactured by Nippon Gosei Co., Ltd. with an average degree of polymerization of 1700 and a degree of saponification of 88%) was added to obtain a 10% suspension of compound number (5). I got it. The particle size was 0.16μ. This suspension is 8
It was completely stable even after storage at 0°C for 3 months. Furthermore, the suspension obtained by diluting the above suspension with water so that the concentration of compound (5) was 0.01% did not show any precipitation or separation even after being stored for 80°CIO days. It was stable.

実施例4 化合物(7)を5fとGFAFAORE−6102,5
1とを50℃で混合・均一化した後、イオン交換水92
.4Ilを10分で添加した。水酸化マグネシウム0.
2fを加えてpH調整して化合物(7)の5%懸濁液を
得た。粒径は0.08μであった。
Example 4 Compound (7) with 5f and GFAFAORE-6102,5
After mixing and homogenizing 1 and 1 at 50°C, ion exchange water 92
.. 4Il was added in 10 minutes. Magnesium hydroxide 0.
2f was added to adjust the pH to obtain a 5% suspension of compound (7). The particle size was 0.08μ.

この懸濁液は80°Cで10日間保存後も安定であった
This suspension remained stable after storage at 80°C for 10 days.

実施例5 化合物(1)を40fと、GAFAORE−6104,
81とを60℃で混合・均一とした後、イオン交換水5
51を20分で添加した。水酸化マグネシウム200M
1を加えてpH調整した後、ポリビニルアルコール(前
述)10%の水溶液100gを加えて、化合物(1)の
20%懸濁液を得た。粒径は0.14μであった。
Example 5 Compound (1) was mixed with 40f, GAFAORE-6104,
After mixing and making homogeneous with 81 at 60℃, add ion exchange water 5
51 was added in 20 minutes. Magnesium hydroxide 200M
After adjusting the pH by adding Compound (1), 100 g of a 10% aqueous solution of polyvinyl alcohol (described above) was added to obtain a 20% suspension of Compound (1). The particle size was 0.14μ.

この懸濁液は80℃で8ケ月保存後も安定であった。ま
た該懸濁液を一20℃で1ケ月保存した後解凍したとこ
ろ、元の安定な懸濁液となった。
This suspension remained stable even after storage at 80°C for 8 months. When the suspension was stored at -20°C for one month and then thawed, it returned to the original stable suspension.

実施例6 /・ 化合物(4)を10fとGAFACRE−610/とを
60°Cで混合・均一とした後、イオン交換水89yを
20分で添加した。水酸化マグネシウム40qを加えて
pH調整し、化合物(4)の10%懸濁液を得た。粒径
は0.16μであった。この懸濁液は30℃で10日間
保存後も安定であった。
Example 6/- 10f of compound (4) and GAFACRE-610/ were mixed and made homogeneous at 60°C, and then 89y of ion-exchanged water was added over 20 minutes. The pH was adjusted by adding 40 q of magnesium hydroxide to obtain a 10% suspension of compound (4). The particle size was 0.16μ. This suspension remained stable even after storage at 30°C for 10 days.

比較例1〜4 実施例6においてGAFAC! RE−610の代りに
下記の界面活性剤を用いて、全く同様に懸濁液を作成し
た。その結果を実施例1の結果と併せ、表1に示す。但
し、比較例においては、得られた懸濁液のpHが4.8
〜6.7の間であったので、pH調整は行なわなかった
Comparative Examples 1 to 4 In Example 6, GAFAC! A suspension was prepared in exactly the same manner using the following surfactant instead of RE-610. The results are shown in Table 1 together with the results of Example 1. However, in the comparative example, the pH of the obtained suspension was 4.8.
Since the pH value was between 6.7 and 6.7, no pH adjustment was performed.

表1 比較例5 実施例5において、GAFAORE−610の代りに下
記の界面活性剤を用いて、同様に懸濁液を作成した。但
しpH調整は比較例1〜4と同様の理由で行なわなかっ
た。その結果を実施例5の結果と併せ表2に示す。
Table 1 Comparative Example 5 A suspension was prepared in the same manner as in Example 5, using the following surfactant instead of GAFAORE-610. However, pH adjustment was not performed for the same reason as Comparative Examples 1 to 4. The results are shown in Table 2 together with the results of Example 5.

Claims (1)

【特許請求の範囲】 (1)水に難溶な1種以上のピレスロイド系農薬活性成
分を1〜50重量%、一般式 %式% (式中、Rは炭素数8〜30のアルキル、基または炭素
数8〜30のアルキルフェニル基を表わし、nは4〜5
0の整数を表わし、上を、該ピレスロイド系農薬活性成
分に対し8〜50重量%およびpH調整剤を0〜5重量
%含有し、かつ農薬活性成分の平均粒径が1μ未満であ
ることを特徴とする水中懸濁型農薬製剤。 (2) ppm整剤として、アルカリ金属水酸化物、ア
ルカリ土類金属水酸化物、リン酸塩および脂肪酸ジェタ
ノールアミンからなる群より選ばれる1種以上を用いる
特許請求の範囲第1項に記載の水中懸濁型農薬製剤。 (8) pH調整剤として、アルカリ土類金属水酸化物
を男いる特許請求の範囲第1項または第2項に記載の水
中懸濁型農薬製剤。 (4) pH調整剤として、水酸化マグネシウムおよび
/または水酸化カルシウムを用いる特許請求の範囲第1
項、第2項または第8項に記載の水中懸濁型農薬製剤。
[Scope of Claims] (1) 1 to 50% by weight of one or more pyrethroid pesticide active ingredients that are sparingly soluble in water, % of the general formula % (wherein R is an alkyl group having 8 to 30 carbon atoms, or represents an alkylphenyl group having 8 to 30 carbon atoms, where n is 4 to 5
represents an integer of 0, and the above indicates that the pyrethroid pesticide active ingredient contains 8 to 50% by weight and the pH adjuster is 0 to 5% by weight, and the average particle size of the pesticide active ingredient is less than 1μ. Characteristic water-suspended pesticide formulation. (2) As the ppm adjuster, one or more selected from the group consisting of alkali metal hydroxides, alkaline earth metal hydroxides, phosphates, and fatty acid jetanolamines is used as described in claim 1. water-suspended pesticide formulation. (8) The water-suspended agricultural chemical formulation according to claim 1 or 2, which contains an alkaline earth metal hydroxide as a pH adjuster. (4) Claim 1 using magnesium hydroxide and/or calcium hydroxide as the pH adjuster
The water-suspended agricultural chemical formulation according to item 1, 2 or 8.
JP59050361A 1984-03-15 1984-03-15 Agricultural chemical preparation of suspension type in water Pending JPS60193904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59050361A JPS60193904A (en) 1984-03-15 1984-03-15 Agricultural chemical preparation of suspension type in water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59050361A JPS60193904A (en) 1984-03-15 1984-03-15 Agricultural chemical preparation of suspension type in water

Publications (1)

Publication Number Publication Date
JPS60193904A true JPS60193904A (en) 1985-10-02

Family

ID=12856748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59050361A Pending JPS60193904A (en) 1984-03-15 1984-03-15 Agricultural chemical preparation of suspension type in water

Country Status (1)

Country Link
JP (1) JPS60193904A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6197202A (en) * 1984-10-17 1986-05-15 Kao Corp Aqueous suspension composition of biocide
FR2662053A1 (en) * 1990-05-21 1991-11-22 Rhone Poulenc Agrochimie HERBICIDE SOLUTIONS BASED ON N-PHOSPHONOMETHYLGLYCIN.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6197202A (en) * 1984-10-17 1986-05-15 Kao Corp Aqueous suspension composition of biocide
JPS6358802B2 (en) * 1984-10-17 1988-11-17
FR2662053A1 (en) * 1990-05-21 1991-11-22 Rhone Poulenc Agrochimie HERBICIDE SOLUTIONS BASED ON N-PHOSPHONOMETHYLGLYCIN.
GR910100215A (en) * 1990-05-21 1992-07-30 Rhone Poulenc Agrochimie Herbicidal solutions based on n-phosphonomethylglycine
BE1005378A0 (en) * 1990-05-21 1993-07-06 Rhone Poulenc Agrochimie HERBICIDE SOLUTIONS BASED ON N-PHOSPHONOMETHYLGLYCIN.

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