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Darren Andrew Makeiff

Darren Andrew Makeiff, St. Albert CA

Patent application numberDescriptionPublished
20100004360METHODS OF MAKING NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - Nanoscale particles of benzimidazolone pigments are made by providing one or more organic pigment precursor(s) to a benzimidazolone pigment, providing a solution or suspension of a sterically bulky stabilizer compound that associates non-covalently with a benzimidazolone moiety on one of the pigment precursors, wherein the sterically bulky stabilizer compound is selected from the group consisting of substituted pyridine derivatives, alkylated benzimidazolone compounds, alkylated derivatives of aromatic acids, and mixtures thereof, and carrying out a coupling reaction to form a benzimidazolone pigment composition, whereby one or more functional moieties on the benzimidazolone pigment is non-covalently associated with the sterically bulky stabilizer, so as to limit an extent of particle growth and aggregation and results in nanoscale pigment particles.01-07-2010
20100035172NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated-benzimidazolone compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.02-11-2010
20100037955NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated derivative of an aromatic acid; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.02-18-2010
20100104963NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.04-29-2010
20110271874Nanosized Particles of Benzimidazolone Pigments - A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.11-10-2011
20110282072SELF-ASSEMBLED NANOSTRUCTURES - An alkylated benzimidazolone compound of the formula:11-17-2011

Darren Andrew Makeiff, St. Alberta CA

Patent application numberDescriptionPublished
20110277668STERICALLY BULKY STABILIZERS - A sterically bulky stabilizer that is associated non-covalently with a benzimidazolone pigment. The sterically bulky stabilizer compound includes an aromatic acid derivative, and the presence of the sterically bulky stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.11-17-2011
20110303122STERICALLY BULKY STABILIZERS - A sterically bulky stabilizer that includes an alkylated-benzimidazolone compound, where the sterically bulky stabilizer is associated non-covalently with a benzimidazolone pigment, and the presence of the sterically bulky stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.12-15-2011