The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2025
Filed:
Oct. 18, 2019
Kumiai Chemical Industry Co., Ltd., Tokyo, JP;
Yuya Okada, Tokyo, JP;
KUMIAI CHEMICAL INDUSTRY CO., LTD., Tokyo, JP;
Abstract
The present invention aims to provide a microcapsule composition that enables reduction or prevention of injury of useful plants caused by pyroxasulfone, a production method therefor, an agrochemical formulation containing the same, and a weed control method. A method of producing a microcapsule composition containing pyroxasulfone encapsulated therein, the method including: an emulsifying dispersion step of performing high-speed stirring of pyroxasulfone crystal particles, isocyanate, oily phase, and aqueous phase at a peripheral speed of 6.000 to 30,000 mm/s to allow emulsifying dispersion of the oily phase in the aqueous phase, to form emulsion particles of the oily phase; and a film formation step of forming a film on at least the surface of the emulsion particles of the oily phase formed by the emulsifying dispersion step; and the like are provided.