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C. Geoffrey Allen, Waterdown CA

C. Geoffrey Allen, Waterdown CA

Patent application numberDescriptionPublished
20080295731REACTIVE INK COMPONENTS AND METHODS FOR FORMING IMAGES USING REACTIVE INKS - A reactive ink set including three mixtures of radically polymerizable monomers. A first mixture includes a peroxide, a second mixture includes a peroxide decomposition agent, and an optional third mixture that does not include a peroxide or a peroxide decomposition agent. The first mixture and the second mixture polymerize to form a solid ink on the substrate following jetting in the liquid state.12-04-2008
20080302269NANOSIZED PARTICLES OF MONOAZO LAKED PIGMENT AND NON-AQUEOUS COMPOSITIONS CONTAINING SAME - A nano scale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the mono-azo laked pigment includes a nono-azo dye molecule laked with a divalent metal cation; the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles. Non-aqueous dispersion compositions, such as ink compositions, contain a polymeric dispersant, an organic liquid, and the nanoscale pigment particle composition.12-11-2008
20080302271NANOSIZED PARTICLES OF MONOAZO LAKED PIGMENT - A nanoscaled pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.12-11-2008
20080302272NONPOLAR AND SOLID OR PHASE CHANGE INK COMPOSITIONS COMPRISING QUINACRIDONE NANOSCALE PIGMENT PARTICLES - A nonpolar or solid or phase change ink composition which includes a carrier and a nanoscale pigment particle composition, which nanoscale pigment particle composition includes a quinacridone pigment molecules including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized particles.12-11-2008
20080302275NANOSIZED PARTICLES OF MONOAZO LAKED PIGMENT WITH TUNABLE PROPERTIES - A nanoscale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety on the pigment associates non-covalently with the functional group of the stabilizer; and the nanoscale pigment particles have an average particle size of from about 10 nm to about 500 nm and have tunable coloristic properties that depend on both particle composition and average particle size.12-11-2008
20080306189NON-AQUEOUS COMPOSITIONS CONTAINING NANOSIZED PARTICLES OF MONOAZO LAKED PIGMENT - Non-aqueous disperson compositions, such as ink compositions, contain a polymeric dispersant, a polymeric resin, an organic liquid, and a nanoscale pigment particle composition including an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.12-11-2008
20080306193Radiation Curable Compositions Containing Nanosized Particles Of Monoazo Laked Pigment - Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, and a nanoscale pigment particle composition including an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.12-11-2008
20080308008METHOD OF MAKING NANOSIZED PARTICLES OF MONOAZO LAKED PIGMENT - A nanoscale pigment particle composition includes an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.12-18-2008
20090038506Phase change ink compositions - A radiation curable phase change ink comprising a white colorant; a colorant dispersant; and an ink vehicle comprising at least one curable monomer; at least one gellant; optionally at least one photoinitiator; optionally at least one stabilizer; and optionally at least one wax.02-12-2009
20090097898HAND HELD PHOTOCHROMIC MARKING IMPLEMENT - Disclosed is a hand-held photochromic marking implement including photochromic colorants and a solid phase colorant carrier which can be used in direct-to-media marking and a method of forming same.04-16-2009
20090136681Phase Change Curable Inks - A variety of UV curable phase change inks are disclosed. The inks possess the characteristic the gloss of printed areas closely matches the gloss of unprinted areas of the substrate. On plain papers the printed and unprinted gloss values are within 5 ggu when measured at 60°. On coated papers, the printed and unprinted gloss values are within 25 ggu when measured at 60°. Although not limited by any theory, it is speculated that the gel rheology of inks of the disclosure conforms well with the paper substrate, providing a rougher low gloss surface on plain paper and a smoother high gloss surface on coated paper.05-28-2009
20090227785METHOD OF MAKING NANOSIZED PARTICLES OF PHTHALOCYANINE PIGMENTS - Nanoscale pigment particles of phthalocyanine pigments are prepared by providing a unsubstituted phthalocyanine chromogen material and a substituted phthalocyanine chromogen material, reacting the unsubstituted phthalocyanine chromogen material and the substituted phthalocyanine chromogen material to form a mixture of unsubstituted phthalocyanine dye molecules and substituted phthalocyanine dye molecules, and causing the substituted phthalocyanine dye molecules to non-covalently associate with the unsubstituted phthalocyanine dye molecules, so as to limit an extent of particle growth and aggregation and result in nanoscale pigment particles.09-10-2009
20090234041RADIATION CURABLE INK CONTAINING A CURABLE WAX - Curable monomer that is liquid at 25° C., curable wax and colorant together form a radiation curable ink. This ink may be used to form images by providing the radiation curable ink at a first temperature; applying the radiation curable ink to the substrate to form an image, the substrate being at a second temperature, which is below the first temperature; and exposing the radiation curable ink to radiation to cure the ink.09-17-2009
20090297714FLUSH PIGMENT FOR SOLID INKJET INK - The present disclosure provides for the process for preparing a solid inkjet ink using a pigment flush. One process includes applying a first mixing step to a pigment and a flushing agent to flush the pigment from am aqueous phase to a non-aqueous phase to form a pigment dispersion, adding at least one other ink ingredient, and incorporating the other ink ingredient in the pigment dispersion by applying a second mixing step to form a solid inkjet ink. Another process disclosed includes adding at least one ink ingredient directly to a pigment dispersion and mixing by applying a high shear mixer.12-03-2009
20100028537Ink Carriers Containing Surface Modified Nanoparticles, Phase Change Inks Including Same, and Methods for Making Same - An ink carrier comprising a dispersion of at least one of silica nanoparticles surface modified with a hydrophobic group or metal oxide nanoparticles surface modified with a hydrophobic group exhibiting a substantially uniform distribution of said nanoparticles discretely distributed therewithin, said ink carrier being resistant to substantial aggregation of said nanoparticles distributed therewithin.02-04-2010
20100075038Ink Carriers Containing Low Viscosity Functionalized Waxes, Phase Change Inks Including Same, And Methods For Making Same - A phase change ink including a colorant and a carrier including a tri-ester of the formula03-25-2010
20100086683FLUORESCENT SOLID INK MADE WITH FLUORESCENT NANOPARTICLES - A nonpolar or solid (or phase change) ink composition that includes a carrier and at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer.04-08-2010
20100086701RADIATION CURABLE INK CONTAINING FLUORESCENT NANOPARTICLES - Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, that includes a carrier and at least one nanoscale fluorescent pigment particle and an optional non-fluorescent colorant. The fluorescent organic nanoparticle composition includes one or more fluorescent dyes dispersed in a polymeric matrix obtained by modified EA latex process or by emulsion polymerization. In a different embodiment, the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.04-08-2010
20100186624METHOD OF MAKING A PIGMENTED PHASE CHANGE INK WITH DISPERSANT AND SYNERGIST - A method of making a phase change ink composition includes adding to a device with a stirring element at least one pigment, at least one dispersant and at least one synergist, processing the device at an elevated temperature and at a stirring rate to wet the at least one pigment to obtain an ink concentrate, and mixing the ink concentrate with an ink vehicle to obtain the ink composition. The device may be an extruder, an attritor or the like. The method allows for the reduction in the amount of dispersant to include in the ink.07-29-2010
20100190904PIGMENTED PHASE CHANGE INKS WITH DISPERSANT AND SYNERGIST - A phase change ink composition includes an ink vehicle and at least one pigment, wherein the ink composition is substantially solid at room temperature and includes at least one dispersant for the at least pigment and at least one synergist.07-29-2010
20100251928NONPOLAR LIQUID AND SOLID PHASE CHANGE INK COMPOSITIONS COMPRISING NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is a substituted pyridine derivative, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.10-07-2010
20100288162PIGMENTED PHASE CHANGE INKS CONTAINING LOW MOLECULAR WEIGHT QUATERNARY AMMONIUM SALT DISPERSANTS - A pigmented phase change ink composition comprising an ink vehicle, a dispersant, and pigment particles wherein the dispersant is a chemical compound of formula:11-18-2010
20100292467LOW MOLECULAR WEIGHT QUATERNARY AMMONIUM SALT DISPERSANTS - Disclosed is a chemical compound having the structure:11-18-2010
20100300326NONPOLAR LIQUID AND SOLID PHASE CHANGE INK COMPOSITIONS COMPRISING NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is an alkylated-benzimidazolone compound, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.12-02-2010
20100319573NONPOLAR LIQUID AND SOLID PHASE CHANGE INK COMPOSITIONS COMPRISING NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is an alkylated derivative of an aromatic acid, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.12-23-2010
20110052882TONER HAVING TITANIA AND PROCESSES THEREOF - The present disclosure provides white toner compositions and processes for making same. In embodiments, a desirable white toner may be produced without having to resort to excessive pigment loading, having desirable gloss characteristics.03-03-2011
20110130502SOLID INKS INCORPORATING A POLYHYDROXYALKANOATE COMPOUND FOR ENHANCED PROPERTIES - A solid phase change ink composition that includes at least one colorant and an ink vehicle. The ink vehicle further includes at least one polyhydroxyalkanoate compound of the below formula06-02-2011
20110146537LOW MOLECULAR WEIGHT PIGMENT DISPERSANTS FOR PHASE CHANGE INK - Disclosed is a compound of the formula06-23-2011
20110151123Pigmented Phase Change Inks Containing Low Molecular Weight Pigment Dispersants - An ink comprising an ink vehicle; pigment particles; and a dispersant; wherein the dispersant stabilizes the pigment particles; and wherein the dispersant is a compound of the formula06-23-2011

Patent applications by C. Geoffrey Allen, Waterdown CA