Title:
MANUFACTURE OF HERBICIDE EMULSION AND HERBICIDAL COMPOSITION
Document Type and Number:
Japanese Patent JPS63188601
Kind Code:
A
Abstract:
A process of preparing a herbicidal emulsion comprising 75 grams per litre or more of a salt of a herbicidal bipyridylium diquaternary cation as an active ingredient comprising as a first step agitating an aqueous solution of a herbicidal bipyridylium diquaternary salt with an oil and a first emulsifier having a low HLB value to give a first emulsion comprising droplets of herbicidal bipyridylium diquaternary salt solution dispersed in a continuous oil phase, and as a second step, agitating the first emulsion with water and a second emulsifier having a high HLB value, to give a second emulsion comprising drops of the first emulsion dispersed in a continuous aqueous phase. The emulsions have a lower oral toxicity than conventional aqueous formulations.
Inventors:
SAAWATSUTO FUOADO TADOROSU
Application Number:
JP393688A
Publication Date:
August 04, 1988
Filing Date:
January 13, 1988
Export Citation:
Assignee:
ICI PLC
International Classes:
A01N25/04; A01N43/40; A01N43/90; (IPC1-7): A01N25/04
Attorney, Agent or Firm:
Shigeru Yagita (2 outside)