Patent ID: 8263530
Filing Date: 2012-09-11
Classification: A01N,B01J,C08G

Abstract:
1. A composition containing microcapsules characterized in that the active ingredient(s) are selected alternatively from the groups: (i) chlorpyrifos, or (ii) fluoroxypyr, or (iii) a combination of: (a) fluoroxypyr and (b) at least one sulfonylurea, wherein, either (a) is inside the microcapsules and (b) is(are) outside the microcapsules, or the reverse, or (iv) a combination of (b) at least one sulfonylurea and (c) one agrochemical compound whose melting point is below 110° C. and that is solid at room temperature, wherein (c) is inside the microcapsules and (b) is(are) outside the microcapsules, or the reverse, wherein the composition comprises a styrene acrylic polymer that is 1% to 45% by weight of the total weight of the composition; wherein the microcapsules are made by the reaction of wall-forming materials comprising at least one aromatic isocyanate and a glycoluril derivative having the four hydrogens of the four nitrogen atoms substituted by an alkyloxyalkylene group, wherein alkylene has the meaning of methylene, ethylene or isopropylene, and alkyl has the meaning methyl, ethyl or isopropyl; and wherein the microcapsules have a particle size of 1 to 30 μm.