METHOD OF PREPARING SOLVENT-FREE EMULSION OF PROPETAMPHOSE Russian patent published in 1995 - IPC

Abstract RU 2038789 C1

FIELD: production of insecticides. SUBSTANCE: propetamphose is mixed with vegetable oil, their quantities being 20-50 and 1-2 respectively of total mass of composition. Thus prepared oil phase is added into aqueous phase by intense mixing. Said aqueous phase contains (mass): polyvinyl alcohol 3-8, buffer system having pH 6-7 1-3, emulsifier 1-2 and water up to 100. Aqueous phase may additionally contains up to 8 mass of additives. Mixture of these phases is mixed to produce drops of desired product having size less 5 μm. Desired product has high stability. EFFECT: improves efficiency of the method. 3 tbl

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RU 2 038 789 C1

Authors

Khans Khelfenberger[Ch]

Dates

1995-07-09Published

1987-06-15Filed