Compositions – Oxidative bleachant – oxidant containing – or generative – Composition containing a stabilizer or a product in the form...
Reexamination Certificate
2005-01-18
2005-01-18
Anthony, Joseph D. (Department: 1714)
Compositions
Oxidative bleachant, oxidant containing, or generative
Composition containing a stabilizer or a product in the form...
C252S186420, C252S186200, C252S182130, C252S182290
Reexamination Certificate
active
06843935
ABSTRACT:
The present invention provides supported peroxides, and a method of forming supported peroxides. Supported peroxides according to the invention are solid particles that include an organic peroxide and a metallic soap. In accordance with the method of the invention, supported peroxides are preferably formed by dispersing a mixture that includes at least one peroxide and at least one C4to C30carboxylic acid into an aqueous solution that includes a compound that is capable of reacting with the C4to C30carboxylic acid to form a water soluble soap. Dispersing the mixture into the aqueous solution results in the formation of an emulsion. A polyvalent metal compound that is capable of reacting with the water soluble soap to form a water insoluble metallic soap is then added to the emulsion, which converts the water soluble soap into a water insoluble metallic soap that precipitates from the solution. The organic peroxide is entrained within the precipitate.
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Dluzneski Peter R.
Gregor Martin J.
Anthony Joseph D.
GEO Specialty Chemicals, Inc.
Rankin, Hill Porter & Clark LLP
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