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Patent Searching and Data


Title:
AGENT FOR KILLING HARMFUL ORGANISM
Document Type and Number:
Japanese Patent JPH05201803
Kind Code:
A
Abstract:
PURPOSE: To obtain a microcapsulated pesticidal formulation high in storage stability, enabling to sufficiently control the release rate of an active ingredient and not containing injurious formaldehyde, and to provide a method for producing the same. CONSTITUTION: This method for the preparation of the microcapsules comprises rapidly stirring an aqueous solution of a precondensate of urea and a dialdehyde (e.g. glutaraldehyde) in the molar ratio of urea to dialdehyde of 1:1 to 1:2.5 into an acidified aqueous dispersion of a water-immiscible pesticide or a readily volatile water-immiscible solvent, drying the obtained microcapsules to remove the solvent, and subsequently mixing the obtained hollow capsules with a liquid pesticide.

Inventors:
RUDORUFU NASUTOKE
ANDOREASU REONHARUTO
ERUNSUTO NOIENSHIYUBUANDAA
Application Number:
JP26976392A
Publication Date:
August 10, 1993
Filing Date:
September 11, 1992
Export Citation:
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Assignee:
CIBA GEIGY AG
International Classes:
A01N25/28; B01J13/18; A01N35/06; (IPC1-7): A01N35/06; B01J13/18
Attorney, Agent or Firm:
Nobuo Kaida (2 outside)