Pendimethanlin microcapsules with a shell made of tetramethylxylylene diisocyanate and a polyamine with at least three amine groups

    公开(公告)号:US11089780B2

    公开(公告)日:2021-08-17

    申请号:US15736927

    申请日:2016-06-08

    Applicant: BASF SE

    Abstract: 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.

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