RU97101462A - SOLID MICROSPHERES FOR AGRICULTURALLY-ACTIVE COMPOUNDS AND METHOD FOR PRODUCING THEM - Google Patents

SOLID MICROSPHERES FOR AGRICULTURALLY-ACTIVE COMPOUNDS AND METHOD FOR PRODUCING THEM

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Publication number
RU97101462A
RU97101462A RU97101462/04A RU97101462A RU97101462A RU 97101462 A RU97101462 A RU 97101462A RU 97101462/04 A RU97101462/04 A RU 97101462/04A RU 97101462 A RU97101462 A RU 97101462A RU 97101462 A RU97101462 A RU 97101462A
Authority
RU
Russia
Prior art keywords
active substance
agriculture
liquid phase
substance used
phase
Prior art date
Application number
RU97101462/04A
Other languages
Russian (ru)
Other versions
RU2150832C1 (en
Inventor
Джиа Ло Рэй
Ноэ Виллафранка Эрнесто
Original Assignee
Зенека Лимитед
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
Priority claimed from US08/271,298 external-priority patent/US5639710A/en
Application filed by Зенека Лимитед filed Critical Зенека Лимитед
Publication of RU97101462A publication Critical patent/RU97101462A/en
Application granted granted Critical
Publication of RU2150832C1 publication Critical patent/RU2150832C1/en

Links

Claims (11)

1. Способ получения микросфер, содержащих сельскохозяйственно-активное вещество, которое включает стадии:
a) приготовления жидкой фазы, содержащей жидкое активное вещество, применяемое в сельском хозяйстве;
b) смешения этой жидкой фазы с водной фазой, содержащей приблизительно от 1 до приблизительно 25 вес.% поливинилового спирта;
c) добавление к смеси, полученной на стадии b), тонкодисперсного вещества, выбранного из глины, оксида кремния, водорастворимых крахмалов, производных крахмала и их сочетания, в количестве приблизительно от 5 до приблизительно 40% от общего веса смеси; и
d) сушки полученной суспензии методом разбрызгивания, с целью инкапсулирования активного вещества.1. A method of producing microspheres containing an agriculturally active substance, which includes the steps of:
a) the preparation of a liquid phase containing a liquid active substance used in agriculture;
b) mixing this liquid phase with an aqueous phase containing from about 1 to about 25 wt.% polyvinyl alcohol;
c) adding to the mixture obtained in step b) a finely divided substance selected from clay, silica, water-soluble starches, starch derivatives and combinations thereof, in an amount of from about 5 to about 40% of the total weight of the mixture; and
d) drying the resulting suspension by spraying, in order to encapsulate the active substance. 2. Способ по п. 1, в котором активное вещество, применяемое в сельском хозяйстве, растворяют в органическом растворителе в жидкой фазе. 2. The method according to p. 1, in which the active substance used in agriculture is dissolved in an organic solvent in the liquid phase. 3. Способ по п. 1, в котором активное вещество, применяемое в сельском хозяйстве, присутствует в жидкой фазе в расплавленном виде. 3. The method according to p. 1, in which the active substance used in agriculture is present in the molten phase in the liquid phase. 4. Способ по п. 1, в котором активное вещество, применяемое в сельском хозяйстве, представляет собой растворимое в воде твердое соединение, а жидкая фаза представляет собой водный раствор этого твердого соединения. 4. The method according to p. 1, in which the active substance used in agriculture, is a water-soluble solid compound, and the liquid phase is an aqueous solution of this solid compound. 5. Способ по п. 2 или 3, в котором любая жидкая фаза либо водная фаза дополнительно содержит диспергатор и/или смачивающее средство. 5. The method according to p. 2 or 3, in which any liquid phase or aqueous phase further comprises a dispersant and / or wetting agent. 6. Способ по п. 2 или 3, в котором жидкую фазу эмульгируют в водной фазе. 6. The method according to p. 2 or 3, in which the liquid phase is emulsified in the aqueous phase. 7. Способ по п. 1, в котором жидкая фаза содержит приблизительно от 70 до приблизительно 85 вес.% активного вещества, применяемого в сельском хозяйстве. 7. The method according to p. 1, in which the liquid phase contains from about 70 to about 85 wt.% The active substance used in agriculture. 8. Способ по п. 6, в котором стадию эмульгирования проводят при скорости перемешивания приблизительно от 500 до приблизительно 5000 об/мин и температуре приблизительно от 10 до 100oC.8. The method according to p. 6, in which the stage of emulsification is carried out at a stirring speed of from about 500 to about 5000 rpm and a temperature of from about 10 to 100 o C. 9. Способ по п. 1, в котором активное вещество, применяемое в сельском хозяйстве, включает лямбда-цигалотрин. 9. The method according to p. 1, in which the active substance used in agriculture, includes lambda-cygalotrin. 10. Способ по п. 1, в котором активное вещество, применяемое в сельском хозяйстве, включает сульфосат. 10. The method according to p. 1, in which the active substance used in agriculture, includes sulfosate. 11. Микросферы, содержащие активное вещество, применяемое в сельском хозяйстве, приготовленное по способу любого из пп. 1-10. 11. Microspheres containing the active substance used in agriculture, prepared by the method of any one of paragraphs. 1-10.
RU97101462/04A 1994-07-06 1995-06-19 Microsphere for agriculturally active compounds and method of their producing RU2150832C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/271,298 1994-07-06
US08/271,298 US5639710A (en) 1994-07-06 1994-07-06 Solid microspheres for agriculturally active compounds and process for their production

Publications (2)

Publication Number Publication Date
RU97101462A true RU97101462A (en) 1999-05-20
RU2150832C1 RU2150832C1 (en) 2000-06-20

Family

ID=23034996

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97101462/04A RU2150832C1 (en) 1994-07-06 1995-06-19 Microsphere for agriculturally active compounds and method of their producing

Country Status (20)

Country Link
US (1) US5639710A (en)
EP (1) EP0768818B1 (en)
CN (1) CN1151678A (en)
AT (1) ATE206279T1 (en)
AU (1) AU696545B2 (en)
BR (1) BR9508225A (en)
CA (1) CA2194389A1 (en)
DE (1) DE69523053T2 (en)
DK (1) DK0768818T3 (en)
EG (1) EG20644A (en)
ES (1) ES2165439T3 (en)
HU (1) HU219740B (en)
IL (1) IL114210A (en)
MX (1) MX9700070A (en)
RU (1) RU2150832C1 (en)
TR (1) TR199500827A1 (en)
TW (1) TW341492B (en)
UA (1) UA40651C2 (en)
WO (1) WO1996001048A1 (en)
ZA (1) ZA955531B (en)

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