Patent ID: 11944091
Assignee: ADAMA MAKHTESHIM LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 13:
14. A method for preparing the packaged stable, self-dispersible, low foaming captan granule of claim 10, comprising:
(i) mixing the captan with the condensed methyl naphthalene sulfonate, sodium salt, sodium diisopropyl naphthalene sulphonate, citric acid/citrate, sodium bicarbonate and polysiloxane silicon(e)-based powder antifoam agent to obtain a premix,
(ii) milling the premix to obtain a milled premix,
(iii) wetting the milled premix with granulation water containing 9% of the non-ionic polyalkoxylated butyl ether surfactant to obtain a wetted powder,
(iv) extruding the wetted powder in an extrusion granulator to obtain extruded granules,
(v) drying the extruded granules to a moisture content of less than 3%,
(vi) sieving the dried granules, and
(vii) packing the granules in a package which is sufficiently impermeable to moisture such that the effervescent system comprised in the granule contained in the package does not substantially react when the package is exposed to humid air.