Fluidized bed coated amidoperozyacid bleach composition

Details Fluidized bed coated amidoperozyacid bleach composition Fluidized bed coated amidoperozyacid bleach composition

C - Chemistry, Metallurgy

11

D

C11D 17/00 (2006.01) C11D 3/39 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2160900

A coated bleach composition for laundering which contains from 1-97 weight percent of an amidoperoxyacid, and 0-98 weight percent of a hydratable amidoperoxyacid compatible material, less than 2.0 weight percent of water, and a coating of 2-30 weight percent of a water-soluble salt applied by spray coating on a fluidized bed, is disclosed. Also disclosed is a process for the coating of an amidoperoxyacid-containing bleach composition characterized by the steps of spraying, at a temperature below the decomposition temperature of the amidoperoxyacid, a sufficient amount of an atomized spray of an aqueous solution of a water-soluble salt onto a fluidized bed of bleach composition containing an amidoperoxyacid to provide 2-30 weight percent of the water-soluble salt to the composition, and drying the coated composition to a water content of less than 2.0 weight percent. The coating of the composition eliminates caking problems encountered with the uncoated composition.

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