Liquid peracid precursor colloidal dispersions: microemulsions
Reference Number: N 03-07
Inventors: Scheuing, David R.; McManus, James D.; Van Buskirk, Gregory
Owner: NISTAC
USPTO Link:5681805
Invention Summary
The present invention provides liquid peracid precursor systems adaptable for the
delivery of peracid oxidants in the presence of a peroxide source for bleaching or
cleaning applications. The peracid precursor is stably dispersed or solubilized within
a colloidal dispersion which further comprises a liquid matrix and an emulsifier,
which emulsifier has an HLB appreciably different from that of the peracid precursor.
It is therefore an object of this invention to provide liquid systems for the delivery
of peracid oxidants in which peracid precursors are stably dispersed or solubilized.
It is a further object of this invention to provide liquid peracid precursor systems
in the form of microemulsions to provide storage stable liquid peracid precursor/peroxide
source compositions.
It is yet another object of this invention to provide liquid peracid precursor systems
which can be stably combined with a source of hydrogen peroxide.
It is a still another object of this invention to provide stable liquid compositions
containing acylated phenyl esters preferably without sulfonate moieties present on
the phenyl leaving groups.
It is a still further object of this invention to dispense stable liquid compositions
containing peracid precursors along with a liquid cleaning adjunct preferably comprising
at least one alkalinity source, one detergent, one peroxide source, or a mixture thereof.
It is finally an object of this invention to co-dispense stable liquid compositions
containing peracid precursors along with a separately prepared liquid cleaning adjunct,
preferably comprising at least one alkalinity source, one liquid detergent, one liquid
peroxygen source, or a mixture thereof.