DISPERSANT FOR WETTABLE POWDER OF FARM CHEMICAL

PURPOSE:The titled dispersant that contains polyoxyethylene-polyoxypropylene block polymer sulfate ester ammonium salt as a surfactant, thus showing high wettability, suspending properties, low foaming properties and high operability. CONSTITUTION:The objective dispersant for wettable powder of farm...

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Hauptverfasser:	WATABE CHIYUUICHI, OKADA KENJI, TERADO TOMOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES FISHING FORESTRY HUMAN NECESSITIES HUNTING PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	PURPOSE:The titled dispersant that contains polyoxyethylene-polyoxypropylene block polymer sulfate ester ammonium salt as a surfactant, thus showing high wettability, suspending properties, low foaming properties and high operability. CONSTITUTION:The objective dispersant for wettable powder of farm chemicals is obtained by adding a surfactant of the formula (b is 15-80; a+c is 2-50; M is alkali metal, ammonium, amine). The surfactant is obtained by using polypropylene glycol of 850-5,000 average molecular weight as the hydrophobic group, effecting addition polymerization of 2-50 moles of ethylene glycol on both ends, sulfating both ends of the resultant block polymer and neutralizing the sulfates with an alkali metal such as Na or K or an ammonia. Even in mechanical spraying such as with speed sprayer or helicoptor, no troubles are caused such as foaming to improve operability markedly.