Oxidant composition containing stable bleach activator granules

US5269962A · kind A · utility

Assignee

• THE CLOROX COMPANY · US

Inventors

• Kevin J. Brodbeck · Pleasanton, US
• Thomas B. Ottoboni · Belmont, US
• Cris T. Spillett · Walnut Creek, US
• Dale S. Steichen · Byron, US
• Suzanne M. Thompson · Oakland, US
• Alfred G. Zielske · Pleasanton, US
• Steven A. Bolkan · Hopewell, US

Key dates

• Filing date: Mar 25, 1991
• Grant date: Dec 14, 1993
• Expiry date: Mar 25, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3907
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides stable bleach activator granules comprising: PA1 (a) a peroxygen bleach activator having the structure: ##STR1## wherein R is C.sub.1-20 branched or straight chain alkyl, alkoxylated alkyl, cycloalkyl, alkenyl, aryl, substituted aryl, alkylaryl; R' and R" are independently H, C.sub.1-4 alkyl, aryl; and L is a leaving group; PA1 b) a pliable binding material selected from materials having a melting completion temperature of greater than about 40.degree. C.; and PA1 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.