Microcapsule composition, method for manufacturing same, agrochemical formulation comprising same and weed control method
US12302897B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2019 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J13/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.