Specified Particle Size Or Coated Particle Containing Patents (Class 106/31.65)
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Publication number: 20120162332Abstract: Thermal inkjet printer sublimation inks are provided having high melting point suspended particles such that the ink does not clog thermal ink jet print heads. Low-cost thermal ink jet printers are used to create thermal transfer images from the inks which are used in conventional thermal transfer processes. An ink set having at least three ink colors includes an aqueous medium of 30-95 weight percent having particles of 50 nm to 1000 nm suspended therein in an amount of 1-10 weight percent. The suspended particles include a sublimation dye and have a melting point of at least a surface of the particle greater than or equal to 200° C. The particles may have a core-shell structure with a sublimation dye core. The ink includes one or more cosolvents from 4-40 weight percent, a surfactant of 0.01 to 5 weight percent, and a biocide of 0.01-5 weight percent.Type: ApplicationFiled: December 22, 2010Publication date: June 28, 2012Applicant: Hong Kong Applied Science and Technology Research Institute Company LimitedInventors: Dennis McKean, Francis Chee-Shuen LEE
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Patent number: 8177897Abstract: A phase change ink including (a) a phase change ink carrier and (b) a colorant comprising a carbon allotrope.Type: GrantFiled: November 17, 2008Date of Patent: May 15, 2012Assignee: Xerox CorporationInventors: James D. Mayo, Santokh Badesha
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Publication number: 20120105554Abstract: An ink forming method involves preparing a deagglomerated ink or a modified deagglomerated ink. The deagglomerated ink or the modified deagglomerated ink includes at least deagglomerated colorant particles and a liquid component. The deagglomerated colorant particles are chosen from pigment particles each encapsulated with a dispersant. The colorant particles have a particle size ranging from about 50 nm to about 500 nm. Prior to shipping and/or storing the deagglomerated ink or the modified deagglomerated ink, a portion of the liquid component is removed to form a concentrated ink that has a nonvolatile solids content ranging from about 40 wt % to about 90 wt % of the concentrated ink.Type: ApplicationFiled: October 29, 2010Publication date: May 3, 2012Inventors: Doris Pik-Yiu Chun, Thomas Anthony, Hou T. Ng, Howard S. Tom
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Patent number: 8163075Abstract: An ink composition that includes a self-dispersing pigment that has about 0.02 to about 1.0 mMoles of S and about 0.2 to about 2.0 mMoles of active hydrogen per gram of pigment, water, and an organic solvent. A method of making an ink composition that includes sulfonating a pigment, subsequently oxidizing the pigment to produce a modified pigment, and incorporating the modified pigment into an ink.Type: GrantFiled: October 31, 2007Date of Patent: April 24, 2012Assignee: Sensient Colors LLCInventors: Jeff Kennedy, Diane V. Graff, Daniel F. Gloster, Michael Bogomolny, Puthalath K. Sujeeth, Ryan Cross
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Patent number: 8163077Abstract: The invention relates to an ink-jet ink composition for printing on a ceramic substrate comprising: (a) a liquid vehicle; (b) sub-micron particles of binding composition having a melting point below 6000 C; and (c) sub-micron particles causing an etch-like effect, said sub-micron particles are selected from metal oxide particles, high melting point frit particles, and a combination thereof, said sub-micron particles causing an etch-like effect have a melting point of at least 500 C above the melting point of said sub-micron particles of binding composition. The invention further relates to a printing process using such ink and to a ceramic substrate printed with a pattern or image having an etch-like effect, by means of the printing process.Type: GrantFiled: September 28, 2006Date of Patent: April 24, 2012Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem, DIP Tech. Ltd.Inventors: Gera Eron, Avi Feinschmidt, Shlomo Magdassi, Yelena Vinetsky, Eliane Liraz
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Publication number: 20120088079Abstract: There is described an optical-effect-producing medium comprising a carrier medium (1) containing or comprising pigment particles (10) having at least one optically responsive pigment or dye (100) that responds to incident electromagnetic radiation of at least a selected excitation wavelength or wavelength band (?EX) by producing an optical response in the visible or near-visible spectrum. A refractive index (n1) of the carrier medium (1) and a refractive index (n2; n3) of the pigment particles (10) are selected to maximise the amount of incident electromagnetic radiation reaching the said at least one optically responsive pigment or dye (100). Also described is the use of such optical-effect-producing medium to produce an optically responsive feature, especially for security, authentication and/or identification purposes, as well as objects comprising such an optically responsive feature.Type: ApplicationFiled: June 10, 2011Publication date: April 12, 2012Inventors: Elizabeth A. Downing, Nicholas K. Sheridon
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Publication number: 20120081778Abstract: A pigment-based ink comprises: a non-polar carrier fluid; and pigment particles suspended in the non-polar carrier fluid. The pigment particles are coated with a metal oxide that is modified with at least one silane coupling agent to introduce functional groups, steric stabilizers or both. A combination of an electronic display and an electronic ink is provided, as is a method for modifying the pigment particles.Type: ApplicationFiled: October 5, 2010Publication date: April 5, 2012Inventors: Qin Liu, Zhang-Lin Zhou, Tim R. Koch
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Publication number: 20120079960Abstract: A white ink composition contains a white or whitish pigment, an ethylene-vinyl acetate (EVA) resin or a polyolefin wax, and a fluorene resin or a styrene acrylic resin.Type: ApplicationFiled: October 5, 2011Publication date: April 5, 2012Applicant: Seiko Epson CorporationInventors: Ippei Okuda, Tsuyoshi Sano
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Patent number: 8147908Abstract: Process for producing organoamine-stabilized silver nanoparticles with a molar ratio of silver salt to organoamine of about 1:4 to about 1:10 are disclosed. The process includes: forming a solution including an organic solvent and a first amount of organoamine; adding silver salt particles to the solution; adding a second amount of organoamine to the solution; adding a hydrazine to the solution; and reacting the solution to form an organoamine-stabilized silver nanoparticles.Type: GrantFiled: June 9, 2010Date of Patent: April 3, 2012Assignee: Xerox CorporationInventors: Mahya Mokhtari, Roger E. Gaynor, Marko D. Saban
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Publication number: 20120067248Abstract: A method for producing water-repellent treated aluminum pigment dispersion includes (a) adding a polysilazane solution in which a polysilazane is dissolved in a second organic solvent to an aluminum pigment dispersion in which an aluminum pigment is dispersed in a first organic solvent for reacting a hydroxyl group present on the surface of the aluminum pigment with the polysilazane to form a covering film on the surface of the aluminum pigment. The amount of the polysilazane in the reaction system for forming the covering film is 0.4 parts by mass or less based on 1 part by mass of the aluminum pigment, and the total addition amount of the polysilazane is from 0.2 to 0.6 parts by mass based on 1 part by mass of the aluminum pigment.Type: ApplicationFiled: November 29, 2011Publication date: March 22, 2012Inventors: Takayoshi KAGATA, Tsuyoshi Sano, Fukui Toshimi, Kawasaki Hideki
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Patent number: 8133312Abstract: A dispersion having particles of a water-insoluble colorant containing at least two kinds of pigments dispersed with a dispersing agent in a medium containing water, wherein the water-insoluble colorant has a crystalline structure, and a light-scattering intensity is 30,000 cps or less, when a peak value of absorbance in the visible light region is set to 1.Type: GrantFiled: October 28, 2008Date of Patent: March 13, 2012Assignee: FUJIFILM CorporationInventors: Ryo Saito, Jun Matsumoto
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Patent number: 8133313Abstract: An embodiment of the invention is concerned with an aqueous inkjet ink containing an ink solvent containing water and a water-soluble organic solvent containing glycerin and triethylene glycol and a pigment dispersed in the ink solvent. The water-soluble organic solvent accounts for from 30 to 80% by weight of the ink solvent, a weight of the triethylene glycol is from 0.5 to 1.5 times the weight of the glycerin, and the pigment is blended in an amount of from 2 to 20% by weight of the total weight of the ink.Type: GrantFiled: February 11, 2009Date of Patent: March 13, 2012Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki KaishaInventors: Ryozo Akiyama, Hiroshi Kiyomoto, Takaya Kitawaki
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Patent number: 8128848Abstract: The invention relates to a pigment composition that is composed of compounds of formulas (I), (II) and (III), is characterized by a average particle size d50 ranging from 10 to 60 nm, less than 5% by volume of the particles being greater than 70 nm, and can be obtained by reacting of 1 mol of a succinic acid diester with 2 mol of a mixture of nitriles A-CN and B-CN nitriles, the molar ratio of A-CN and B-CN in the nitrile mixture being in the range from 99.5:0.5 to 85.0:15.Type: GrantFiled: September 16, 2008Date of Patent: March 6, 2012Assignee: Clariant Finance (BVI) LimitedInventors: Tanja Reipen, Jens Reichwagen, Matthias Ganschow, Carsten Plueg, Lars Schneider
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Patent number: 8105429Abstract: An ink set includes an oil-based ink composition containing a metallic pigment; and at least one oil-based ink composition selected from the group consisting of a chromatic color ink composition containing a chromatic color oil dye, a black ink composition containing a black oil dye, and a colorless and transparent ink composition that does not contain a colorant.Type: GrantFiled: October 26, 2010Date of Patent: January 31, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Akio Ito, Seishin Yoshida
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Patent number: 8097075Abstract: An ink set includes an oil-based ink composition containing a metallic pigment; and at least one oil-based ink composition selected from the group consisting of a chromatic color ink composition containing a chromatic color oil dye, a black ink composition containing a black oil dye, and a colorless and transparent ink composition that does not contain a colorant.Type: GrantFiled: July 6, 2009Date of Patent: January 17, 2012Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Akio Ito, Seishin Yoshida
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Publication number: 20120006224Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Takashi OYANAGI, Kiyohiko TAKEMOTO, Chiyoshige NAKAZAWA
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Publication number: 20120010300Abstract: The present invention relates to effect pigments based on thin glass flakes and to a method for the production of such pigments. The resulting pigment can be used in any application for which pearlescent pigments have been heretofore used such as, for example, in plastics, paints, inks, cosmetic formulations, coatings including solvent or waterborne automotive paint systems, powder coatings, inks and agriculture foils.Type: ApplicationFiled: September 23, 2011Publication date: January 12, 2012Inventors: Ralf ANSELMANN, Klaus Ambrosius, Marcus Mathias
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Patent number: 8084090Abstract: The present invention relates to (1) a water dispersion for ink-jet printing which includes a self-dispersible pigment (A) containing a salt-forming group and polymer particles (B) containing a constitutional unit derived from a salt-forming group-containing monomer and a constitutional unit derived from a silicone macromer, wherein the polymer particles (B) contain the same salt-forming groups as that contained in and the self-dispersible pigment (A), the water dispersion being excellent in optical density, higher lighter fastness and ejection property; (2) a water-based ink containing the water dispersion; and (3) a method for preventing aggregates from adhering onto an inner surface of nozzles in an ink-jet printing head.Type: GrantFiled: August 30, 2006Date of Patent: December 27, 2011Assignee: Kao CorporationInventor: Yasushi Ito
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Publication number: 20110281032Abstract: An ink composition includes an aluminum pigment, a white pigment, and a dispersion solvent, wherein the ink composition has a structure in which the aluminum pigment is dispersed in the dispersion solvent and the content of the white pigment is 0.01% to 10% based on the content of the aluminum pigment, or includes silver particles, a white pigment, and water, wherein the particle diameter d90 in the particle diameter accumulation curve of the silver particles is 50 nm to 1 ?m, the ink composition has a structure in which the silver particles are dispersed in the water, and the content of the white pigment is 1% to 10% based on the content of the silver particles.Type: ApplicationFiled: May 13, 2011Publication date: November 17, 2011Applicant: Seiko Epson CorporationInventors: Takayoshi Kagata, Kiyohiko Takemoto, Tsuyoshi Sano, Shiki Hirata, Naoki Koike
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Patent number: 8048517Abstract: Compositions, methods, apparatuses, kits, and combinations are described for permanently or temporarily re-designing, decorating, and/or re-coloring a surface. The compositions useful in the present disclosure include a décor product that is formulated to be applied and affixed to a surface. If desired, the décor product may be substantially removed from the surface before being affixed thereto. If a user desires to remove the décor product, the décor product is formulated to be removed by a number of methods including, for example, vacuuming, wet extraction, chemical application, and the like. If the user desires to affix the décor product to the surface in a permanent or semi-permanent manner, the décor product may be affixed to the surface by applying energy thereto in the form of, for example, heat, pressure, emitted waves, an emitted electrical field, a magnetic field, and/or a chemical.Type: GrantFiled: June 14, 2010Date of Patent: November 1, 2011Assignee: S.C. Johnson & Son, Inc.Inventors: James F. Kimball, Ketan N. Shah, Eric J. Minor, Marcia L. Santaga
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Publication number: 20110239901Abstract: The present invention provides coloring particles containing a dye and a water-insoluble low-molecular-weight dispersant, wherein the average particle size of the coloring particles is 10 nm or more and 80 nm or less; the solubility parameter of the dye in water with a pH of 6.0 to 10.0 is 9.20 or more, the solubility parameter being represented by formula (1); and the content of the dye and the content of the water-insoluble low-molecular-weight dispersant satisfy a relationship of formula (2).Type: ApplicationFiled: March 29, 2011Publication date: October 6, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Shinnosuke Koji, Kazumichi Nakahama, Shoji Koike
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Publication number: 20110242241Abstract: Ink composition including non-VOC liquid carrier and method of making the same are disclosed. A disclosed example ink composition has a viscosity that is below about 70.0 cps and includes non-VOC liquid carrier, dispersing agents and pigment particles having an average size of less than about 10 ?m. Also disclosed are method of use and method of making such ink composition containing non-VOC liquid carrier.Type: ApplicationFiled: April 1, 2010Publication date: October 6, 2011Inventors: Doris Pik-Yiu Chun, Howard S. Tom, Hou T. Ng
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Patent number: 8030373Abstract: Provided is a pigment distribution system. The pigment distribution system includes a pigment encapsulated by physically adsorbing a diblock copolymer to the pigment. The diblock copolymer is represented by Formula 1 below: where -A- denotes a hydrophilic monomer, -B- denotes a hydrophobic monomer, m denotes an integer ranging from 1 to 10, and n denotes an integer ranging from 3 to 30, wherein hydrophilic monomers of neighboring diblock copolymer chains are crosslinked using a crosslinker.Type: GrantFiled: April 1, 2008Date of Patent: October 4, 2011Assignee: Samsung Electronics Co., LtdInventors: Tae-woon Cha, Sung-woong Kim
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Patent number: 8025723Abstract: 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.Type: GrantFiled: August 10, 2010Date of Patent: September 27, 2011Assignee: Xerox CorporationInventors: Rina Carlini, C. Geoffrey Allen
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Publication number: 20110227976Abstract: The invention provides an ink jet recording ink containing a self-dispersion pigment to a surface of which an anionic functional group represented by the following general formula (1) is bonded directly or through another atomic group, an ammonium salt of an organic carboxylic acid, water, and a water-soluble compound having a hydrophilicity-hydrophobicity coefficient of 0.Type: ApplicationFiled: January 14, 2010Publication date: September 22, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Shoji Koike, Ikuo Nakazawa, Taketoshi Okubo, Akira Kuriyama, Masayuki Ikegami, Atsuhito Yoshizawa
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Patent number: 8021473Abstract: A process for manufacturing an ink, or pigment formulation (e.g. a concentrate) for use in inks, comprising filtration of a composition comprising a particulate pigment and a liquid medium through an inorganic filter having pores of a uniform size below 10 microns. The process accurately removes oversized particles that could cause problems in inkjet printers without wasting non-problematic under-sized pigment. High flow rates are achieved even with low trans-filter pressure differences. In one embodiment, high flow rates are maintained by selection of pH and/or ionic strength. The filters are more robust than conventional polymeric filters and withstand cleaning with aggressive cleaning agents.Type: GrantFiled: July 6, 2006Date of Patent: September 20, 2011Assignee: Fujifilm Imaging Colorants LimitedInventors: Charles Rupert McIntyre, Gary Cuthbertson, Peter Mark Godfrey
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Publication number: 20110216122Abstract: Provided is a black ink composition containing a pigment, wherein the value calculated from the average particle diameter and the particle size distribution width of the pigment and the ink viscosity is regulated within a certain range, and the number of coarse particles contained in the ink composition is regulated to a certain value or less. The ink composition is excellent in ink storage stability and can give an image realized with good balance between color development, in particular, in high-speed printing and inhibition of a time-dependent change in printing density due to pigment sedimentation.Type: ApplicationFiled: March 2, 2011Publication date: September 8, 2011Applicant: Seiko Epson CorporationInventors: Chie Maruyama, Miharu Kanaya
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Patent number: 8012254Abstract: 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.Type: GrantFiled: October 19, 2009Date of Patent: September 6, 2011Assignees: Xerox Corporation, National Research Council of CanadaInventors: Rina Carlini, Darren Andrew Makeiff
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Patent number: 7993439Abstract: A printing ink concentrate in the form of coated non-tacky and/or uncoated non-tacky pellets, a method for producing the same and a method of making a printing ink by using the concentrate.Type: GrantFiled: November 22, 2004Date of Patent: August 9, 2011Assignee: Michael Huber Muenchen GmbHInventors: Olaf Kaeppler, Volker Kittlaus, Hans-Georg Wittmann, Manuela Mittermeier
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Publication number: 20110182651Abstract: A metallic ink includes 30% to 80% water, 0.4% to 10% color pigments having a particle size?6 ?m, 1% to 15% dissolved resin from the group consisting of maleate resin and/or maleic acid modified rosin, 1% to 15% metallic pigments having a particle size distribution D50<25 ?m, 1% to 20% humectants, 0.1% to 10% additives and a viscosity of 5-10 mPa·s (Brookfield, CPE-40 spindle, 20 rpm). An applicator for applying the ink is also provided.Type: ApplicationFiled: January 24, 2011Publication date: July 28, 2011Applicant: FABER-CASTELL AGInventors: WOLFGANG SCHWARZ, GERHARD LUGERT
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Publication number: 20110179971Abstract: Platelet-shaped, copper-containing, metallic effect pigments which have a copper content of 60% to 100% by weight, based on the total metal content, the metal pigments having a thickness distribution as determined via thickness counting by scanning electron microscopy (SEM) and represented as cumulative undersize distribution, a) with an h50 of 10 to 50 nm, and b) with an h90 of 20 to 70 nm, the platelet-shaped, copper-containing, metallic effect pigments being produced by milling a copper-containing metal powder with lubricant. The disclosure further relates to a process for producing these pigments, and also to their use, to a printing ink comprising the pigments of the invention, and to a coated article comprising these pigments.Type: ApplicationFiled: May 28, 2009Publication date: July 28, 2011Inventors: Dieter Proelss, Ralf Deinzer, Wolfgang Herzing, Andreas Kroell, Stefan Trummer, Michael Becker, Katrin Wczasek
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Patent number: 7985290Abstract: 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.Type: GrantFiled: August 10, 2010Date of Patent: July 26, 2011Assignee: Xerox CorporationInventors: Rina Carlini, C. Geoffrey Allen
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Patent number: 7981210Abstract: The disclosure is generally related to writing instruments capable of making markings containing large diameter glitter pigment particles, and glitter ink compositions for the same. In one embodiment, the disclosure provides a capillary-action marker comprising a glitter ink composition, a low density ink reservoir for storing the glitter ink composition, and a porous nib in fluid communication with the low density ink reservoir, wherein the glitter ink composition comprises glitter pigment particles having a particle size greater than about 12.1 microns in at least one dimension.Type: GrantFiled: April 28, 2008Date of Patent: July 19, 2011Assignee: Sanford, L.P.Inventors: Wing Sum Vincent Kwan, Jennifer Carra
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Publication number: 20110169887Abstract: An ink composition comprising a solvent system, a pigment dispersed in the solvent system; and a surfactant present in an amount sufficient to impart to the ink composition a dynamic viscosity greater than 100 centipoise at a shear rate of 1 s?1 and a dynamic viscosity from 1 to 10 centipoise at a shear rate of 10,000 s?1.Type: ApplicationFiled: June 25, 2008Publication date: July 14, 2011Inventors: Alexey S. Kabalnov, Elizabeth A. Fellner, David William Jenkins, Kevin G. Miller
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Patent number: 7971985Abstract: A pigment dispersion containing a metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 ?m, and the condition R50/Z>5 is satisfied.Type: GrantFiled: June 16, 2010Date of Patent: July 5, 2011Assignee: Seiko Epson CorporationInventors: Takashi Oyanagi, Keitaro Nakano
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Publication number: 20110151123Abstract: 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 formula or a mixture thereof, wherein R and R? are independently selected from alkyl, arylalkyl, or alkylaryl with from about 18 to about 60 carbon atoms and wherein m is an integer of from about 1 to about 30.Type: ApplicationFiled: December 18, 2009Publication date: June 23, 2011Applicant: Xerox CorporationInventors: Adela Goredema, Mihaela Maria Birau, C. Geoffrey Allen, Caroline Turek, Maxine E. Haberl, Christopher Wagner, Raymond Wan-Ning Wong, Peter G. Odell
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Patent number: 7963646Abstract: Compositions for use in ink jet printing onto a substrate comprising a water based dispersion including metallic nanoparticles and appropriate stabilizers. Also disclosed are methods for the production of said compositions and methods for their use in ink jet printing onto suitable substrates.Type: GrantFiled: October 28, 2002Date of Patent: June 21, 2011Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem Israell CompanyInventors: Shiomo Magdassi, Alexander Kamyshny, Yelena Vinetsky, Amal Bassa, Raim Mokh Abo
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Patent number: 7955426Abstract: The present invention provides an ink set comprising at least two or more pigment inks different in color, wherein differences in average particle size between the inks different in color are 30 nm or less, the inks each have a sedimentation rate, as indicated by equation (I), of 15% or less, and differences in the sedimentation rate between the inks different in color are 4% or less: Sedimentation rate (%)=(S0?S1)/S0×100??(I) wherein S0 represents an “initial ink concentration”, which is an absorbance at a wavelength of ?max (or at 500 nm when ?max is not detected) at the time when UV spectral characteristics are measured for a 1000-fold diluted solution of the ink; and S1 represents an “ink concentration after sedimentation”, which is an absorbance at a wavelength of ?max (or at 500 nm when ?max is not detected) at the time when UV spectral characteristics are measured for a 1000-fold diluted solution of a supernatant obtained by centrifuging the ink at 16500 G at 1.60×107 g·sec.Type: GrantFiled: March 31, 2010Date of Patent: June 7, 2011Assignee: Seiko Epson CorporationInventor: Miharu Kanaya
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Patent number: 7942960Abstract: The present invention provides a white ink composition that can give a white image having excellent abrasion resistance. The white ink composition according to the invention is a white ink composition containing hollow resin particles and a polyurethane resin characteristically having a glass transition temperature of 50° C. or less.Type: GrantFiled: December 5, 2008Date of Patent: May 17, 2011Assignee: Seiko Epson CorporationInventors: Tsuyoshi Sano, Takayoshi Kagata
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Patent number: 7942959Abstract: An ink for ink-jet recording, by use of which the ejection stability and the storage stability are improved while the occurrence of blurring is prevented, includes water, a water soluble organic solvent and a colored particle as a coloring agent. The volume average diameter of the colored particles is about 1 ?m to about 5 ?m, and the amount of particles having diameters equal to or greater than about 1.5 times the volume average diameter is about 5 vol % or less with respect to the total volume of the colored particles.Type: GrantFiled: September 25, 2007Date of Patent: May 17, 2011Assignee: Brother Kogyo Kabushiki KaishaInventor: Hideo Ohira
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Patent number: 7938903Abstract: 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.Type: GrantFiled: October 19, 2009Date of Patent: May 10, 2011Assignees: Xerox Corporation, National Research Council of CanadaInventors: Rina Carlini, Darren Andrew Makeiff
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Publication number: 20110088591Abstract: The present invention pertains to an inkjet ink set comprising a certain aqueous, pigmented magenta inkjet ink in combination with a certain aqueous, pigmented yellow inkjet ink or a fixer ink. The pigmented magenta ink comprises Pigment Red 146 with defined particle sizes.Type: ApplicationFiled: June 25, 2009Publication date: April 21, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Michael Stephen Wolfe, Nathaniel Reed Schwartz
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Patent number: 7927688Abstract: A security information and graphic image fusion system to be used with verification equipment to provide a tamper proof labeled article having security information thereon. The label comprises a printable sheet having at least one invisible IR or UV image, or both, printed thereon, at least one visible image printed thereon, and an over-coating layer thereon. The invisible IR or UV image, or both, provide security information. The visible image provides the graphic image. The label is permanently fused by an in-mold molding process to an article made of plastic, rubber or the combination thereof to render it tamper proof.Type: GrantFiled: December 1, 2004Date of Patent: April 19, 2011Assignee: Standard Register CompanyInventors: Fredric Louis Abrams, Robert Frank Freund
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Patent number: 7927412Abstract: A pigment ink composition has high transparency and good color characteristics such as a high OD that are not inferior to those of dyes, even though pigment particles are used, and also has good weatherability and remaining ability on the coating and printing medium surface that are inherent to pigment particles. The pigment ink composition contains pigment particles including at least needle pigment particles, a dispersant, and a solvent. The needle pigment particles have a needle shape with an aspect ratio of at least 3, an average aspect ratio of at least 5 and at most 7, an average short dimension of at least 20 nm and at most 30 nm, and a distribution of short dimension with a standard deviation of 2.0 nm or less. The needle pigment particles are covered with the dispersant.Type: GrantFiled: July 17, 2008Date of Patent: April 19, 2011Assignee: Canon Kabushiki KaishaInventors: Akira Kuriyama, Takayuki Teshima, Kazumichi Nakahama, Rie Ueno, Masatoshi Watanabe, Takeo Suga
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Publication number: 20110064779Abstract: Pearlescent pigments including a largely transparent platelet-shaped substrate having a density ?S and at least one optically active coating having a density ?M, the substrate having an average size d50 of 3 to 8 ?m and an average height hS of 40 to 110 nm. The disclosure further relates to a method for producing the pearlescent pigments, and also to the use thereof.Type: ApplicationFiled: April 15, 2009Publication date: March 17, 2011Inventors: Michael Gruener, Ulrich Schmidt, Günter Kaupp, Peter Krueger, Jens Depner, Katrin Steinbach, Ralph Schneider, Frank Henglein
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Patent number: 7905954Abstract: 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.Type: GrantFiled: October 19, 2009Date of Patent: March 15, 2011Assignees: Xerox Corporation, National Research Council of CanadaInventors: Rina Carlini, Darren Andrew Makeiff
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Patent number: 7901501Abstract: The invention provides an inkjet ink composition comprising: a white pigment; a polymerizable compound; and a polymerization initiator. The white pigment includes at least one of inorganic hollow particles or inorganic-organic hybrid hollow particles. A ratio of an average inside diameter of cavities in the at least one of inorganic hollow particles or inorganic-organic hybrid hollow particles to an average outside diameter of the at least one of inorganic hollow particles or inorganic-organic hybrid hollow particles is in a range of from 0.4 to 0.95. Further, a volume average particle diameter of the at least one of inorganic hollow particles or inorganic-organic hybrid hollow particles is in a range of from 0.01 to 1.0 ?m.Type: GrantFiled: February 8, 2007Date of Patent: March 8, 2011Assignee: FUJIFILM CorporationInventor: Yukari Kobayashi
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Patent number: 7897656Abstract: The present invention relates to an ink jet ink which is an oil-based white ink for ink jet recording containing (a) titanium oxide having an average particle size of 0.15 to 0.25 ?m, (b) a resin, (c) an organic solvent and (d) a nonionic surfactant, wherein the nonionic surfactant comprises at least one member selected from polyoxyethylene alkyl ethers and polyoxyethylene phenyl ethers. According to the invention, there can be provided an oil-based white ink for ink jet recording which is excellent in ejection stability and in recovery properties after standing for a long period of time.Type: GrantFiled: August 12, 2005Date of Patent: March 1, 2011Assignees: Seiko Epson Corporation, The Inctec Inc.Inventors: Masahiro Nakamura, Seiji Mochizuki, Makoto Otsuki, Yukio Sugita, Shinichi Yoshimitsu
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Patent number: 7892344Abstract: The invention provides a pigment preparation comprising (a) C.I. Pigment Red 254 with an average particle size d50 of not more than 100 nm; (b) 0.1% to 30% by weight, based on the weight of the PR 254, of one or more dispersants from the group of the unlaked sulfo-containing monoazo dyes; and (c) 0.Type: GrantFiled: July 2, 2009Date of Patent: February 22, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Tanja Reipen, Jens Reichwagen, Lars Schneider, Carsten Plueg, David Blum
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Publication number: 20110036266Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.Type: ApplicationFiled: October 27, 2010Publication date: February 17, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Takashi OYANAGI, Kiyohiko TAKEMOTO, Chiyoshige NAKAZAWA