Oxidant composition containing stable bleach activator granules

Reference Number: N 03-07

Inventors: Brodbeck, Kevin J.; Ottoboni, Thomas B.; Spillett, Cris T.; Steichen, Dale S.; Thompson, Suzanne M.; Zielske, Alfred G.; Bolkan, Steven A.

Owner: NISTAC

USPTO Link: 5269962

Invention Summary

The present invention provides stable bleach activator granules comprising: (a) a peroxygen bleach activator having the structure: wherein R is C_1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R' and R" are independently H, C_1-4 alkyl, aryl; and L is a leaving group; b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40° C.; and c) a solubilizing aid selected from the group consisting of magnesium sulfate, alkali aryl sulfonate, polyvinyl pyrrolidone or mixtures thereof. The invention can also include additional stiffeners, such as calcium or magnesium silicate, or silica.