JP2007039344A - 水面浮遊型農薬組成物用拡展剤及び水面浮遊型農薬組成物 - Google Patents
水面浮遊型農薬組成物用拡展剤及び水面浮遊型農薬組成物 Download PDFInfo
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- JP2007039344A JP2007039344A JP2005222448A JP2005222448A JP2007039344A JP 2007039344 A JP2007039344 A JP 2007039344A JP 2005222448 A JP2005222448 A JP 2005222448A JP 2005222448 A JP2005222448 A JP 2005222448A JP 2007039344 A JP2007039344 A JP 2007039344A
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
水面浮遊型農薬組成物に優れた拡展性を経済的に付与でき、しかも調製した水面浮遊型組成物を長期間保存したときでも優れた拡展性を保持できる水面浮遊型農薬組成物用拡展剤、及びかかる特性を有する水面浮遊型農薬組成物を提供する。
【解決手段】
水面浮遊型農薬組成物用拡展剤として、炭素数6〜14のアルカンジオール及び下記の化1で示されるアルカンジオール誘導体から選ばれる一つ又は二つ以上を用いた。
【選択図】 なし
Description
R:炭素数6〜14のアルカンジオールから全ての水酸基を除いた残基
A1,A2:合計1〜7個の炭素数2〜4のオキシアルキレン単位で構成された(ポリ)オキシアルキレン基を有する(ポリ)アルキレングリコールから全ての水酸基を除いた残基
実施例1〜8及び比較例1〜3{拡展剤(A−1)〜(A−8)及び(a−1)〜(a−3)の合成}
2−ブチル−2−エチル−1,3−プロパンジオール160.3g(1モル)をオートクレーブに仕込み、触媒として水酸化カリウム粉末1gを加えた後、オートクレーブ内を充分に窒素で置換した。撹拌下に反応温度を130〜150℃に維持しつつエチレンオキサイド264g(6モル)を圧入して付加重合反応を行ない、同温度で1時間熟成して付加重合反応を終了した。触媒をリン酸で中和した後、副生物を分子蒸留により分離して、化1中のRが2−ブチル−2−エチル−1,3−プロパンジオールから全ての水酸基を除いた残基であり、またA1及びA2が合計3個のオキシエチレン単位で構成されたポリオキシエチレン基を有するポリエチレングリコールから全ての水酸基を除いた残基である場合の化1で示されるアルカンジオール誘導体から成る実施例1の拡展剤(A−1)を得た。同様にして実施例2〜8の拡展剤(A−2)〜(A−8)及び比較例1〜3の拡展剤(a−1)〜(a−3)を合成した。以上で合成した各拡展剤の内容を表1にまとめて示した。
*1:Rを形成することとなる原料として用いたアルカンジオールで表記
EO:オキシエチレン単位
PO:オキシプロピレン単位
実施例9〜41及び比較例4〜12
試験区分1で合成した拡展剤(A−1)2部、農薬薬効成分としてカフェンストロール20部、浮遊助剤として中空性ガラス33部及び増量剤としてベントナイト9部とクレー36部を混合し、その混合物に水40部を加えて充分混練した。得られた混練物を目開き1.0mmのスクリーンを装着したバスケット型造粒機に供して成形し、切断した後、50℃の流動層乾燥機で乾燥した。得られた乾燥物を長さ約3mmに整粒して実施例9の組成物を調製した。同様にして、実施例10〜41及び比較例4〜12の組成物を調製した。以上で調製した各組成物の内容を表2及び表3にまとめて示した。
割合:%
A−1〜A−8,a−1〜a−3:試験区分1で合成した表1に記載の拡展剤
A−9:2−ブチル−2−エチル−1,3−プロパンジオール
A−10:2,4−ジエチル−1,5−ペンタンジオール
A−11:2−メチル−1,8−オクタンジオール
A−12:1,10−デカンジオール
A−13:1,6−ヘキサンジオール
a−4:1,4−ブタンジオール
a−5:1,16−ヘキサデカンジオール
a−6:エチレングリコールモノノナナート
a−7:α−2−エチルヘキシル−ω−ヒドロキシ−ジオキシエチレン
a−8:サーフィノール104(エアープロダクツ社製)
a−9:1,2−ビス(2−エチルヘキシルオキシカルボニル)エタンスルホン酸ナトリウム
Z−2:ダイムロン
Z−3:ブタクロール
M−1:NAC
M−2:ダイアジノン
K−1:プロペナゾール
K−2:トリシクラゾール
G−1:中空性ガラス(東海工業社製の商品名CEL−STAR Z−27)
G−2:発泡シラス(カルシード社製の商品名シラスバルーン)
I−1:ベントナイト(クニミネ工業社製の商品名クニゲルV1)/クレー(昭和鉱業社製の商品名昭和微粉クレー)=20/80(重量比)の混合物
I−2:ホワイトカーボン(トクヤマ社製の商品名トクシールNR)/ベントナイト(クニミネ工業社製の商品名クニゲルV1)/クレー(昭和鉱業社製の商品名昭和微粉クレー)=10/20/70(重量比)の混合物
I−3:ホワイトカーボン(トクヤマ社製の商品名トクシールNR)/ベントナイト(クニミネ工業社製の商品名クニゲルV1)/炭酸カルシウム(丸尾カルシウム社製の商品名重質炭酸カルシウム)=10/20/70(重量比)の混合物
I−4:ベントナイト(クニミネ工業社製の商品名クニゲルV1)/炭酸カルシウム(丸尾カルシウム社製の商品名重質炭酸カルシウム)=20/80(重量比)の混合物
H−1:アルキルナフタレンスルホン酸金属塩(竹本油脂社製の商品名ニューカルゲンBX−C)
H−2:ナフタレンスルホン酸ホルムアルデヒド縮合物金属塩(竹本油脂社製の商品名ニューカルゲンPS−P)
縦200cm、横10cm、深さ4cmのステンレス製直方容器を用い、この容器の縦方向に沿う内底面中央部に、10cm間隔で、直径2.5cm、長さ5.5cmの円筒形障害物を合計19本立設し、容器内に深さ2cmまで水を入れた。容器の縦方向一端中央部から試験区分2で調製した水面浮遊型農薬組成物0.2gを投入し、その拡展距離、拡展速度及び拡展状況を下記のように評価した(評価1)。同様に、54℃にて4週間保存した水面浮遊型農薬組成物についても、拡展距離、拡展速度及び拡展状況を下記のように評価した(評価2)。結果を表4及び表5にまとめて示した。
評価基準:
◎:170cm以上
○:150cm以上、170cm未満
△:130cm以上、150cm未満
×:130cm未満
拡展速度(cm/秒)=100(cm)/所要時間(秒)
評価基準:
◎:6cm/秒以上
○:5cm/秒以上、6cm/秒未満
△:3cm/秒以上、5cm/秒未満
×:3cm/秒未満
評価基準:
◎:水面に波紋が広がりながら非常に激しく拡展し、拡展性が優れている
○:水面に少し波紋が広がりながら拡展し、拡展性が良好
△:水面に波紋の発生はないが、粒の崩壊直前に少し波紋が広がり、拡展性がやや悪い
×:水面に波紋の発生は全くなく、ゆっくり拡展し、拡展性が悪い
Claims (6)
- 化1で示されるアルカンジオール誘導体から選ばれる一つ又は二つ以上から成る請求項1記載の水面浮遊型農薬組成物用拡展剤。
- 化1で示されるアルカンジオール誘導体が、化1中のRが炭素数8〜12の分岐アルカンジオールから全ての水酸基を除いた残基であり、またA1及びA2が合計2〜6個のオキシエチレン単位及び/又はオキシプロピレン単位で構成されたポリオキシアルキレン基を有するポリアルキレングリコールから全ての水酸基を除いた残基である場合のものである請求項1又は2記載の水面浮遊型農薬組成物用拡展剤。
- 化1で示されるアルカンジオール誘導体が、化1中のRが2−ブチル−2−エチル−1,3−プロパンジオール又は2,4−ジエチル−1,5−ペンタンジオールから全ての水酸基を除いた残基であり、またA1及びA2が合計3〜5個のオキシエチレン単位で構成されたポリオキシエチレン基を有するポリエチレングリコールから全ての水酸基を除いた残基である場合のものであるである請求項1又は2記載の水面浮遊型農薬組成物用拡展剤。
- 請求項1〜4のいずれか一つの項記載の水面浮遊型農薬組成物用拡展剤、農薬薬効成分、浮遊助剤及び増量剤を合計で90質量%以上含有し、且つ該水面浮遊型農薬組成物用拡展剤を0.1〜10質量%、該農薬薬効成分を0.1〜80質量%、該浮遊助剤を1〜80質量%及び該増量剤を1〜80質量%の割合で含有して成ることを特徴とする水面浮遊型農薬組成物。
- 水面浮遊型農薬組成物用拡展剤、農薬薬効成分、浮遊助剤及び増量剤を合計で100質量%含有する請求項5記載の水面浮遊型農薬組成物。
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