Klaus KOLB,Wolfgang GREGORI,Ulrich STEINBRENNER,Liliana PARRA RAPADO
申请号：
US15736927
公开号：
US20180360034A1
申请日:
2016.06.08
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention relates to a composition comprising microcapsules, which comprise a polyurea shell and a core, wherein the core comprises pendimethalin and the shell comprises a polymerization product of a tetramethylxylylene diisocyanate, and a polyamine with at least three amine groups, and where the polymerization product comprises less than 5 wt % of further isocyanate monomers in polymerized form, based on the weight of the tetramethylxylylene diisocyanate； a method for preparing the composition comprising the steps of contacting water, the pendimethalin, the tetramethylxylylene diisocyanate, and the polyamine； and to a method of controlling undesired plant growth, wherein the composition is allowed to act on the soil and/or on undesired plants and/or on the crop plants and/or on their environment.
