A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
167/4, 71/43
A01N 25/14 (2006.01) A01N 25/28 (2006.01)
Patent
CA 1296539
09-21(2028)A WATER-DISPERSIBLE GRANULES AND PROCESS FOR THE PREPARATION THEREOF ABSTRACT The invention is directed to a pesticide composition comprising free flowing, essentially spherical, water-dispersible granules wherein said water-dispersible granules are from about 150 to about 850 microns in diameter; wherein said granules contain up to about 8.0% by weight moisture; wherein each individual water-dispersible granule is an aggregation of individual spherical microcapsules which contain at least one water-insoluble pesticide within a polymeric shell wall; and wherein said water-dispersible granule disintegrates upon contact with water to release said individual microcapsules. The invention also relates to dry flowable pesticidal formulations of the above water-dispersible granules, together with formulation adjuvants. The invention is further directed to a process for preparing a water-dispersible granule comprising: (a) forming an aqueous suspension compris- ing discrete microcapsules containing at least one water-insoluble pesticide within a polymeric shell wall suspended in an aqueous liquid; and (b) forming droplets of said aqueous suspension and spray drying said droplets to form essentially spherical water-dispersible granules which are from about 150 to about 850 microns in diameter and which contain up to about 8.0% moisture, wherein each water-dispersible granule is an aggregation of said microcapsules.
541613
Deming John Miley
Surgant John Melvin
Mcfadden Fincham
Monsanto Company
LandOfFree
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