Pendimethalin microcapsules having a shell prepared from tetramethylxylylene diisocyanate and a polyamine having at least three amine groups

摘要

The present invention is a composition comprising a microcapsule comprising a polyurea shell and a core, wherein the core comprises pendimethalin, and the shell is tetramethylxylylene diisocyanate, and a polymerization product of a polyamine having at least three amine groups And a polymerization product comprising less than 5 wt% of additional isocyanate monomer in polymerized form relative to the weight of tetramethylxylylene diisocyanate; a method for preparing the composition comprising water, pendimethalin, A method comprising contacting tetramethylxylylene diisocyanate and a polyamine; and a method for controlling unwanted plant growth, wherein the composition is applied to soil and / or to unwanted plants and / or to crop plants and / or Or it relates to a method of acting on the environment. [Selection figure] None