Surface Of Particle Is Modified (e.g., Coated, Charged, Etc.) Patents (Class 428/32.36)
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Patent number: 9475330Abstract: Provided is a composition for a printing medium and a printing medium that can be suitably used for a plurality of printing methods, including a plurality of plateless printing methods such as thermal transfer printing, electrophotographic printing, and inkjet printing methods. A coating layer is provided on at least one surface of a support body, and includes (a) a cationic urethane-based resin, (b) an olefin copolymer emulsion, and (c) an ethyleneimine-based resin. The solid mass of the coating layer on one surface of the support body may be 0.01-5 g/m2.Type: GrantFiled: June 5, 2015Date of Patent: October 25, 2016Assignee: YUPO CORPORATIONInventors: Takahiro Zama, Yuta Iwasawa, Kazuyuki Kimura
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Patent number: 9365729Abstract: To provide a treatment liquid for treating a recording medium, which contains a water-soluble organic solvent, a surfactant, water, and an amphoteric emulsion resin having a core-shell structure.Type: GrantFiled: October 25, 2013Date of Patent: June 14, 2016Assignee: RICOH COMPANY, LTD.Inventor: Koji Katsuragi
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Patent number: 8883276Abstract: There is provided a recording medium including a substrate and an ink-receiving layer formed on at least one surface of the substrate, wherein the ink-receiving layer contains an inorganic pigment, a binder, and a compound containing aluminum, silicon, and at least one element selected from Group 2 and 3 elements of the periodic table, and the compound content is in the range of 0.1 mass % to 30 mass % relative to the inorganic pigment content.Type: GrantFiled: June 4, 2013Date of Patent: November 11, 2014Assignee: Canon Kabushiki KaishaInventor: Masaya Asao
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Patent number: 8883274Abstract: An ink jet recording material comprises at least two layers of ink-receptive layers mainly containing inorganic fine particles having an average secondary particle size of 500 nm or less on a resin-coated paper having a resin layer on at least one surface of a base paper, and the ink-receptive layer nearer to the support contains a pearlescent pigment.Type: GrantFiled: August 11, 2010Date of Patent: November 11, 2014Assignee: Mitsubishi Paper Mills LimitedInventors: Masahiro Kawasaki, Toru Kaneko, Satoshi Kaneko, Daichi Miyake
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Patent number: 8778467Abstract: Provided is a recording medium including an ink-receiving layer containing an inorganic pigment and a binder on at least one surface of a substrate. The ink-receiving layer contains a compound including zirconium, silicon, and at least one element selected from Group 2 and Group 3 elements of the periodic table.Type: GrantFiled: July 2, 2012Date of Patent: July 15, 2014Assignee: Canon Kabushiki KaishaInventors: Masaya Asao, Takeshi Tsurusaki, Arika Tanaka
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Patent number: 8685503Abstract: A surface-treated paper produced by applying a surface sizing composition to at least one surface of a base paper, wherein said surface sizing composition comprises a non-film-forming polymer latex and a metallic salt, said non-film-forming polymer latex has a minimum film-forming temperature (MFFT) of greater than 70° C., and said surface sizing composition does not form a continuous film on the treated surface.Type: GrantFiled: January 31, 2010Date of Patent: April 1, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Xiaoqi Zhou, Gracy Wingkono, Dave Edmondson
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Patent number: 8628832Abstract: A recording medium includes a base and at least one ink-receiving layer. A first ink-receiving layer that is at least one ink-receiving layer contains inorganic particles having an average primary particle size of 1 ?m or less and inorganic particles coated with a metal oxide. The inorganic particles coated with the metal oxide have an average primary particle size of 15.0 ?m or more. When the maximum of a FLOP value of the recording medium is denoted by FLOPMax and the minimum of the FLOP value is denoted by FLOPMin, the FLOPMin is 2.5 or more and a value of FLOPMin/FLOPMax is 0.80 or more and 1.00 or less.Type: GrantFiled: January 28, 2013Date of Patent: January 14, 2014Assignee: Canon Kabushiki KaishaInventors: Ryo Taguri, Hisao Kamo, Tetsuro Noguchi, Yasuhiro Nito, Isamu Oguri, Naoya Hatta, Kazuhiko Araki, Shinya Yumoto
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Patent number: 8586156Abstract: An article in the form of a paper substrate having a first surface and a second surface and an acid-resistant water-swellable substrate coating which provides an ink-receptive porous surface on at least one of the first and second surfaces. The substrate coating has an amount of an acid-resistant coating pigment sufficient to impart a Parker Print Smoothness value of at least about 4 to the at least one of the first and second surfaces and is dispersed in an acid-resistant water-swellable crosslinked polymer coating pigment binder matrix, with the coating pigment having from about 30 to 100% larger coating pigment particles with a mean particle size above about 1 micron in diameter. Also, a method for preparing such coated paper substrates.Type: GrantFiled: April 8, 2011Date of Patent: November 19, 2013Assignee: International Paper CompanyInventors: Michael F. Koenig, Kapil M. Singh
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Publication number: 20130215184Abstract: A core/shell particle is provided, comprising: a water-absorbent, dye-fixing polymeric core, comprising: (a) a multivalent cation and a polymerization product of a monoethylenically unsaturated carbonyl-group containing monomer; (b) a nitrogen-containing polymer; or (c) a combination of (a) and (b); and a water-insoluble, porous polymeric shell, surrounding all or a portion of said core. A paper sizing or coating composition which incorporates the core/shell particles is provided. Recording sheets which include the composition, methods of making the composition and recording sheets, and methods for making an image are provided.Type: ApplicationFiled: February 17, 2012Publication date: August 22, 2013Applicant: INTERNATIONAL PAPER COMPANYInventors: MICHAEL F. KOENIG, TIMOTHY J. BRADFORD
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Patent number: 8390882Abstract: A method for estimating the color of a coated print includes: measuring the color of an uncoated print with a color measuring device; and estimating the color of the print when coated by a coating process based on the uncoated color measurement using a function that correlates uncoated color measurements and coated color measurements; and adjusting at least one parameter of the printing process based on the coated color estimation. The correlating function may be derived by measuring the color of a plurality of uncoated color patches; measuring the color of the plurality of patches after the patches have been coated by the coating process; and correlating the color of the coated patches with the uncoated patches based on the coated and uncoated color patch measurements.Type: GrantFiled: August 7, 2009Date of Patent: March 5, 2013Assignee: Xerox CorporationInventors: Edul N. Dalal, Lalit Keshav Mestha
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Patent number: 8389075Abstract: The present invention is drawn to a media sheet, comprising a substrate and a porous ink-receiving layer deposited on the substrate. The porous ink-receiving layer can comprise inorganic metal or semi-metal oxide particulates bound by a polymeric binder, and the porous ink-receiving layer can further include an effective amount of a sulfur-containing compound that interacts with ozone upon exposure thereto.Type: GrantFiled: September 3, 2008Date of Patent: March 5, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Steven D Looman, Eric L Burch, John R Moffatt, Gary Allan Ungefug, Rolf Steiger, Pierre-Alain Brugger, Urs Fuerholz
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Patent number: 8377522Abstract: An inkjet receiver is described which comprises a support and one or more layer coated thereon, at least one layer of which comprises one or more metal organosilicate polymer particulate materials. The metal organosilicate polymer particulate materials are obtainable by contacting a metal salt with a silicon-containing compound having an organic substituent in an organic solvent, wherein either the silicon-containing compound contains a basic group and/or the reaction is conducted in the presence of a base, wherein the metal is selected from one or more of aluminum, magnesium strontium, calcium or zinc and the silicon-containing compound comprises hydrolyzable and non-hydrolyzable substituents such as to form a metal organosilicate polymer particulate material therefrom. The described inkjet receiver is useful for forming images by inkjet printing having excellent color fastness over time.Type: GrantFiled: December 19, 2007Date of Patent: February 19, 2013Assignee: Eastman Kodak CompanyInventors: Stephanie V. Desrousseaux, Olivier J. Poncelet, Gerard A. Friour
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Patent number: 8361572Abstract: A coated medium for inkjet printing, which includes a supporting substrate and a coating layer formed on at least one side thereof. The coating layer includes at least one binder and at least two different inorganic pigments: modified calcium carbonate (MCC) and either precipitated calcium carbonate (PCC) or clay.Type: GrantFiled: October 30, 2009Date of Patent: January 29, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Christopher Toles, Xi Zeng, Jason Swei
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Patent number: 8357438Abstract: A recording medium includes a substrate and at least two ink receiving layers formed on the substrate. In the recording medium, an uppermost ink receiving layer of the at least two ink receiving layers has a dry coated amount of 5 g/m2 or more and 20 g/m2 or less and contains hydrated alumina which a divalent metal compound adheres to. The ratio of an element content of the divalent metal to an element content of aluminum (element content of divalent metal/element content of aluminum) in the uppermost ink receiving layer is 0.001 or more and 0.03 or less.Type: GrantFiled: May 7, 2010Date of Patent: January 22, 2013Assignee: Canon Kabushiki KaishaInventors: Masaya Asao, Hiroshi Asakawa, Yuji Kondo
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Patent number: 8313808Abstract: An inkjet receiver comprising a support and one or more layers coated on the support, at least one of which comprises a particulate material and a binder, the particulate material comprising composite particles having an inner portion and an outer portion or core-shell arrangement, wherein the inner portion comprises a negatively-charged, positively-charged or functionalized latex, and the outer portion comprises an inorganic material having enhanced keeping properties and reduced ozone-induced dye fade.Type: GrantFiled: December 19, 2007Date of Patent: November 20, 2012Assignee: Eastman Kodak CompanyInventors: Gerard A. Friour, Stephanie V. Desrousseaux, Olivier J. Poncelet
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Patent number: 8304043Abstract: There is provided an inkjet recording ink and recording media set, which contains: an inkjet recording ink; and a recording medium, wherein the inkjet recording ink comprises at least: water; a water-soluble organic solvent; and a colorant containing carbon black, and having a volume average particle diameter of 40 nm to 100 nm, wherein the recording medium contains: a substrate; and a coating layer on at least one side of the substrate, and wherein an amount of pure water transferred to the recording medium, as measured with a dynamic scanning absorptometer at 23 C and 50% RH, at a contact time of 100 ms is 2 ml/m2 to 35 ml/m2 while an amount of pure water transferred to the recording medium at a contact time of 400 ms is 3 ml/m2 to 40 ml/m2.Type: GrantFiled: March 14, 2008Date of Patent: November 6, 2012Assignee: Ricoh Company, Ltd.Inventors: Hidefumi Nagashima, Kiyofumi Nagai, Michihiko Namba, Mariko Kojima
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Patent number: 8252393Abstract: The invention relates to a surface-modified inorganic pigment which has an inorganic pigment having acid function and an amorphous body located on the surface of the inorganic pigment having acid function and formed by at least a divalent or higher-valent metal and an anion component in a state where the inorganic pigment and the amorphous body do not chemically bond to each other, and which does not exhibit acid function.Type: GrantFiled: December 25, 2008Date of Patent: August 28, 2012Assignee: Canon Kabushiki KaishaInventors: Akira Nagashima, Kenji Nakajima, Sadayuki Sugama, Hitoshi Yoshino, Masaya Asao
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Patent number: 8202585Abstract: An inkjet printing system, comprises an inkjet printer, an ink composition, and an inkjet recording media comprising a support, and coated on the support in order from the support, a porous base layer and a porous uppermost layer, each with particular limitations The inkjet recording media and printer system is manufacturable using low-cost materials in an efficient process requiring only a single coating and drying step and that gives images with excellent gloss, color density, and image quality.Type: GrantFiled: July 31, 2008Date of Patent: June 19, 2012Assignee: Eastman Kodak CompanyInventors: Terry C. Schultz, Bruce C. Campbell, Andrew M. Howe, Kenneth J. Ruschak, Robin D. Wesley
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Publication number: 20120114881Abstract: In a particular embodiment, a particulate material includes alumina hydrate. The particulate material has a 500 psi Compaction Volume Ratio of at least about 4.0 cc/cc.Type: ApplicationFiled: January 13, 2012Publication date: May 10, 2012Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.Inventors: Olivier Guiselin, Nathalie Pluta, Yves Boussant-Roux, Doruk O. Yener
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Publication number: 20120107533Abstract: A method for the preparation of a coated substrate is provided, comprising the steps of providing a substrate; applying on at least one side of said substrate a first coating layer of a first aqueous composition comprising porous anionic pigment particles having a BET surface area of above 40 m2/g and a binder and applying on said first coating layer, a second coating layer of a second, aqueous composition comprising cationic colloidal silica or silicate based particles and polyalkylene glycol. It has been found that a substrate coated with the combination of the first coating layer and the second coating layer provides a suitable substrate for high-quality and fast-drying inkjet printouts.Type: ApplicationFiled: June 23, 2010Publication date: May 3, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Kjell Rune Andersson, Erik Lindgren
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Patent number: 8163360Abstract: The present invention relates to a pigment dispersion having an inorganic pigment dispersed therein, characterized in that a metal compound adheres to the inorganic pigment and a metal ion concentration of the metal compound in the pigment dispersion does not exceed 0.05 mol/L.Type: GrantFiled: December 25, 2008Date of Patent: April 24, 2012Assignee: Canon Kabushiki KaishaInventors: Masaya Asao, Kenji Nakajima, Sadayuki Sugama, Hitoshi Yoshino, Akira Nagashima
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Patent number: 8158223Abstract: The invention relates to an ink jet recording medium, in which at least one of a substrate and an ink receiving layer contains a compound of the general formula (1): wherein R1 and R2 are individually a hydrogen atom, a hydroxyl group, a linear or branched alkyl group or a substituted or unsubstituted aryl group, with the proviso that R1 and R2 may be the same or different from each other, R3 is a linear or branched alkylene group or arylene group, and X is an acidic solubilizing group.Type: GrantFiled: March 10, 2009Date of Patent: April 17, 2012Assignee: Canon Kabushiki KaishaInventors: Hirokazu Hyakuda, Hiroshi Kakihira, Hisao Kamo
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Patent number: 8153212Abstract: The invention provides an ink jet recording medium excellent in light fastness, gas fastness and uniform ink absorption. The ink jet recording medium has a substrate and an ink receiving layer provided on at least one surface of the substrate. The ink receiving layer contains a compound represented by the general formula (1): wherein R1, R2 and R3 are individually a linear or branched alkyl group having 1 to 20 carbon atoms, with the proviso that at least one of R1, R2 and R3 has a hydroxyl group.Type: GrantFiled: May 29, 2009Date of Patent: April 10, 2012Assignee: Canon Kabushiki KaishaInventors: Hirokazu Hyakuda, Hiroshi Kakihira, Hisao Kamo
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Patent number: 8114487Abstract: An inkjet printing system, comprises an inkjet printer, an ink composition, and an inkjet recording media comprising a support, and coated on the support in order from the support, a porous base layer, a porous intermediate layer, and a porous uppermost layer, each with particular limitations. The inkjet recording media and printer system is manufacturable using low-cost materials in an efficient process requiring only a single coating and drying step and that gives images with excellent gloss, color density and image quality.Type: GrantFiled: July 31, 2008Date of Patent: February 14, 2012Assignee: Eastman Kodak CompanyInventors: Terry C. Schultz, Bruce C. Campbell, Andrew M. Howe, Kenneth J. Ruschak, Robin D. Wesley
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Patent number: 8110257Abstract: An ink-jet recording method including recording onto a recording medium a black image of composite black using a black ink and color inks, wherein the black ink includes water, a water-soluble organic solvent, a surfactant, and a carbon black whose volume average particle diameter is 40 nm to 100 nm, and the color inks include a cyan ink, a magenta ink and a yellow ink, wherein the mass ratio (A/B) of a solid content A to a water-soluble organic solvent content B in the black ink is in the range of 1/8 to 1/15, and wherein the recording medium includes a support with a coating layer, and the amounts of purified water transferred to the recording medium at contact periods of 100 ms and 400 ms at a temperature of 23 C and a relative humidity of 50% are 2 ml/m2 to 35 ml/m2 and 3 ml/m2 to 40 ml/m2 respectively.Type: GrantFiled: June 26, 2008Date of Patent: February 7, 2012Assignee: Ricoh Company, Ltd.Inventors: Hidefumi Nagashima, Kiyofumi Nagai
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Patent number: 8092874Abstract: An inkjet printing system, comprises: a printer, a pigment ink composition, and a dry recording media supply for receiving ink, the media comprising a support bearing an ink-receiving layer containing a complex of a polyvalent metal cation and a ligand, wherein the complex has a stability constant, K1, in the range of 0.3 to 6.0. The system gives images with excellent gloss, coalesence, and image quality.Type: GrantFiled: February 27, 2009Date of Patent: January 10, 2012Assignee: Eastman Kodak CompanyInventors: Allan Wexler, James A. Reczek
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Patent number: 8084107Abstract: The present invention is drawn to a print medium and a method of preparing the same. The print medium can include a media substrate, a porous ink-absorbing layer coated on the media substrate, and a porous ink-receiving layer coated on the porous ink-absorbing layer. The porous ink-absorbing layer can include semi-metal oxide or metal oxide particulates and a first binder, and the porous ink-receiving layer can include organosilane-functionalized semi-metal oxide or metal oxide particulates and a second binder.Type: GrantFiled: February 7, 2005Date of Patent: December 27, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventor: Tienteh Chen
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Patent number: 8071185Abstract: A method for the preparation of silicon dioxide dispersions is described, wherein the surface of the silicon dioxide is modified by a treatment with the reaction products of a compound of trivalent aluminum with least one aminoorganosilane. These reaction products are formed in a separate reaction step. The present invention also relates to recording sheets for ink jet printing having such a dispersion incorporated in an ink-receiving layer.Type: GrantFiled: October 12, 2005Date of Patent: December 6, 2011Assignee: Ilford Imaging Switzerland GmbHInventors: Urs Fürholz, Vincent Ruffieux, Meinrad Schär
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Patent number: 8062720Abstract: Embodiments of the invention are directed to a printing member for imaging with an inkjet printer using pigment-based aqueous inkjet ink. The printing member may include a substrate and a hydrophilic coating layer. The coasting layer may include acidic colloidal silica whose particles have an elongated shape, a hydrophilic polymer and a crosslinking agent.Type: GrantFiled: May 27, 2008Date of Patent: November 22, 2011Assignee: VIM Technologies LtdInventors: Aida Porat, Michael Karp, Zeev Savion, Sergei Bonder, Gal Tamir
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Patent number: 8053043Abstract: A recording sheet for ink jet printing is described, which consists of a support having coated onto said support at least two ink-receiving layers, wherein the ink-receiving layer situated next to the support contains nanoporous silicon dioxide with a positively charged surface and at least one binder and the ink-receiving layer situated further away from the support contains nanocrystalline, nanoporous aluminium oxide or aluminium oxide/hydroxide and at least one binder and, optionally, nanoporous silicon dioxide with a positively charged surface.Type: GrantFiled: February 21, 2007Date of Patent: November 8, 2011Assignee: ILFORD Imaging Switzerland GmbHInventors: Robert Beer, Pierre-Alain Brugger, Vincent Ruffieux, Martin Staiger, Rolf Steiger
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Patent number: 8048497Abstract: The present invention is drawn to a composition for cast-coating on ink-jet media. The composition includes a liquid vehicle, silica particulates, and an internal release agent. The composition is substantially free of polymeric binder and can improve the glossiness of a porous particulate-coated ink-receiving media by at least 2 gloss units at 20 degrees. The silica particulates can be suspended in the liquid vehicle at about 1-35 wt %, and can have a particle size of less than about 150 nm. The internal release agent can be present at about 0.5-10 wt %.Type: GrantFiled: April 27, 2007Date of Patent: November 1, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eric L Burch, Douglas E Knight, Christopher Toles, David Rossing
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Patent number: 8034444Abstract: The present invention relates to a porous membrane obtainable by polymerizing at least one type of curable epoxyacrylate monomer that is soluble in a solvent wherein at least 50 wt % of said solvent is water. The invention further relates to image recording materials, in which these porous membranes are used.Type: GrantFiled: February 4, 2009Date of Patent: October 11, 2011Assignee: FUJIFILM Manufacturing Europe B.V.Inventors: Yujiro Itami, Akira Kase
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Patent number: 7959992Abstract: An ink receiving substrate includes a substrate layer and organic modified silica dispensed on at least one surface of the support layer, wherein the organic modified silica includes inorganic particulates and silane coupling agents having guanidine or biguanidine functional groups.Type: GrantFiled: July 6, 2006Date of Patent: June 14, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventor: Tienteh Chen
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Patent number: 7955667Abstract: An inkjet recording medium includes a substrate, a base layer, and a porous ink receiving layer. The base layer is established on at least one surface of the substrate, and the porous ink receiving layer is established on the base layer. The base layer includes calcined clay present in an amount ranging from about 25% to about 75% by dry weight.Type: GrantFiled: March 15, 2007Date of Patent: June 7, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Richard J Mcmanus, Silke Courtenay, Sandeep Bangaru, Steven L Webb
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Patent number: 7947345Abstract: Methods of polymerizing polyethylene-based polymers on a support, and supports coated with polyethylene-based polymers. The coated supports may be used to improve the ink fixation properties of an ink-jet printing medium. The coated supports may also be useful for highly tailored chromatographic separations.Type: GrantFiled: November 7, 2003Date of Patent: May 24, 2011Assignees: Hewlett-Packard Development Company, L.P., The Curators of the University of MissouriInventors: Eric L Burch, James O. Stoffer, Thomas Schuman
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Patent number: 7947346Abstract: The present invention is drawn to a method of treating silica in an aqueous environment. The method can comprise steps of dispersing silica particulates in an aqueous environment to form an aqueous dispersion; reversing the net charge of a surface of the silica particulates from negative to positive using a surface activating agent, thereby forming surface-activated silica particulates dispersed in the water; and contacting the surface-activated silica particulates with organosilane reagents to form reagent-modified and surface-activated silica particulates.Type: GrantFiled: September 3, 2008Date of Patent: May 24, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Tienteh Chen, Yubai Bi
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Patent number: 7923082Abstract: The present invention relates to an inkjet recording element having outstanding dye keeping properties in time. Said recording element comprises at least one molecular imprinted polymer having sites of selective recognition of dye molecules corresponding to the dye molecules used in inks for inkjet printing.Type: GrantFiled: September 2, 2005Date of Patent: April 12, 2011Assignee: Eastman Kodak CompanyInventors: Gerard A. Friour, Olivier J. Poncelet, Karsten O. Haupt, Laurence G. Poul
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Patent number: 7906187Abstract: An ink jet recording sheet is provided that delivers a photoparity image when printed with ink jet printer. The recording sheet comprises a two-layer coating. The bottom layer comprises amorphous silica and the top layer comprises spherical colloidal silica. Both silicas are rendered cationic. The recording sheet provides fast dry time, excellent image quality and superior water resistance and handle ability.Type: GrantFiled: April 3, 2003Date of Patent: March 15, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yubai Bi, Pierre-Alain Brugger, Martin Staiger, Rolf Steiger, Karl Peternell
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Patent number: 7906185Abstract: An ink receiving substrate includes a base substrate, and an ink receptive coating formed on the base substrate. The ink receptive coating includes a binder and a fumed silica and alumina dispersion, wherein the fumed silica and alumina dispersion includes between 5 and 30% alumina particles.Type: GrantFiled: January 30, 2007Date of Patent: March 15, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Silke Courtenay, Eric L. Burch, David P. Rossing, Tao Chen, Xin Cheng
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Patent number: 7883753Abstract: A recording sheet for ink jet printing is described, which consists of a support having coated thereon at least one ink-receiving layer consisting of binders, a nanocrystalline, nanoporous aluminum oxide or aluminum oxide/hydroxide, wherein the nanocrystalline, nanoporous aluminum oxide or aluminum oxide/hydroxide has been prepared in the absence of acids and has been treated with aluminum chlorohydrate. In a preferred embodiment of the invention the solution of aluminum chlorohydrate is aged at elevated temperature.Type: GrantFiled: December 11, 2006Date of Patent: February 8, 2011Assignee: ILFORD Imaging Switzerland GmbHInventors: Robert Beer, Rolf Steiger
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Patent number: 7863369Abstract: A composite material includes a polymer matrix and a pigment dispersed in the polymer matrix. The pigment includes an alumina hydrate particulate material and a dye. The dye is covalently bonded to a surface of the alumina hydrate particulate material.Type: GrantFiled: December 16, 2008Date of Patent: January 4, 2011Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventors: Catherine Bianchi, Shamshad Noor, Christopher Mirley, Ralph Bauer, Doruk O. Yener
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Patent number: 7833591Abstract: The present invention discloses an ink printing method using an image-recording element, which provides an image having excellent image quality and superior dry time, comprising insoluble cationic core-shell polymeric particles each comprising a core comprising cationic core polymer having at least 10 mole percent of a cationic mordant monomeric unit and a shell comprising hydrophilic shell polymer that is substantially less cationic than the cationic core polymer, wherein the shell is at least 10% by weight of the core.Type: GrantFiled: December 29, 2006Date of Patent: November 16, 2010Assignee: Eastman Kodak CompanyInventors: Peter J. Ghyzel, Joseph F. Bringley, David J. Giacherio, Lawrence P. DeMejo, Terry C. Schultz
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Publication number: 20100183828Abstract: The present invention relates to a pigment dispersion having an inorganic pigment dispersed therein, characterized in that a metal compound adheres to the inorganic pigment and a metal ion concentration of the metal compound in the pigment dispersion does not exceed 0.05 mol/L.Type: ApplicationFiled: December 25, 2008Publication date: July 22, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Masaya Asao, Kenji Nakajima, Sadayuki Sugama, Hitoshi Yoshino, Akira Nagashima
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Patent number: 7740920Abstract: Silica-based, chemically-bonded porous coatings, synthesized via the reaction of organo silanes with silica, are used as coatings for inkjet image printing. Silica is used as the base material in all cases, due to its favorable chemical properties of the surface, and the favorable pore structure. The silane-silica reaction product substantially retains the original pore structure of the pre-reacted silica. The disclosed embodiments solve the problems in the prior art in that any catalytic activity of the silica surface towards image fade is eliminated by the chemical modification of silica. This improves the image fade and humid fastness properties of the coating.Type: GrantFiled: October 10, 2008Date of Patent: June 22, 2010Assignee: Hewlett-Packard Development, L.P.Inventors: Palitha Wickramanayake, James P. Shields
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Patent number: 7727602Abstract: A recording sheet with an ink-receptive layer which can be used not only for dye type inks but also for pigment type inks is provided. Also provided is a coating liquid for forming an ink-receptive layer. The recording sheet with an ink-receptive layer includes a substrate sheet and an ink-receptive layer formed thereon, wherein the ink-receptive layer includes (i) fibrous crystalline particles on surfaces of which a cationic hydrated metal compound is supported and (ii) a binder. The fibrous crystalline particles have an average fiber diameter (D) of 0.1 to 2 ?m, an average fiber length (L) of 1 to 200 ?m and a ratio (aspect ratio) of an average fiber length (L) to an average fiber diameter (D) of 5 to 500.Type: GrantFiled: November 20, 2003Date of Patent: June 1, 2010Assignee: JGC Catalysts and Chemicals Ltd.Inventors: Manabu Watanabe, Hiroyasu Nishida
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Patent number: 7700169Abstract: A recording sheet for ink jet printing is described, which consists of a paper support having coated on the front side of the support at least one ink-receiving layer consisting of fumed silicon dioxide with a positively charged surface and at least one binder, wherein at least one polyolefin layer is coated at the back side of said support and where there is no polyolefin layer between said paper support and the ink-receiving layer. Preferred is a recording sheet, wherein the surface of the fumed silicon dioxide has been modified by a treatment with the reaction products of a compound of trivalent aluminum with at least one aminoorganosilane.Type: GrantFiled: May 25, 2006Date of Patent: April 20, 2010Assignee: Ilford Imaging Switzerland GmbHInventors: Pierre Favre, Martin Staiger
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Publication number: 20100068426Abstract: A recording medium contains a support, and an antistatic agent-containing layer, and the antistatic agent-containing layer contains a binder resin and tin oxide-coated titanium oxide particles.Type: ApplicationFiled: September 15, 2009Publication date: March 18, 2010Applicant: RICOH COMPANY, LTD.Inventors: Hiroki Kuboyama, Yasuhiro Kadota
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Patent number: 7648744Abstract: A tamper-indicating printable sheet. A preferred embodiment of the invention provides a tamper-indicating printable sheet comprising a retroreflective layer comprising a plurality of microbeads partially embedded in an inkjet receptive beadbond layer; and a reflector layer between one of the microbeads and the inkjet receptive beadbond layer. The present invention provides a method of making a tamper-indicating printable sheet.Type: GrantFiled: August 6, 2004Date of Patent: January 19, 2010Assignee: 3M Innovative Properties CompanyInventors: Richard J. Kuo, Mathias Detjen
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Patent number: 7622170Abstract: A coating composition comprising low sodium containing colloidal silicas and ink jet recording sheets prepared from such coatings are described. The coating comprises binder and colloidal silica preferably having an average particle size in the range of about 1 to about 300 nanometers and which has a solids to alkali metal ratio of at least the sum of AW(?0.013SSA+9), AW being the atomic weight of alkali metal present in the colloidal silica and SSA being the specific surface area of the silica. It has been discovered that if the alkali metal, e.g., sodium, content of colloidal silica is reduced, coatings prepared from such colloidal silica and applied to conventional ink jet recording sheet supports provide a specular gloss of at least 30 at 60° C., even at a relatively high silica solids to binder solids ratio of 1:1 or greater.Type: GrantFiled: March 18, 2003Date of Patent: November 24, 2009Assignee: W. R. Grace & Co.-Conn.Inventors: Daniel Ray Fruge, Demetrius Michos
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Patent number: 7592054Abstract: An ink jet recording medium which is excellent in ink absorptivity, color density, gloss, water resistance, light fastness and yellowing resistance, in particular, ink absorptivity, color density, light fastness and yellowing resistance. The ink jet recording medium comprises at least one ink receptive layer containing polymeric organic particles provided on a support, wherein the polymeric organic particles have a glass transition temperature (Tg) of 40° C. or higher and are amphoteric polymeric organic particles having both of the functional groups of a cationic group and an anionic group on the surface thereof.Type: GrantFiled: August 6, 2003Date of Patent: September 22, 2009Assignee: Mitsui Chemicals, Inc.Inventors: Tadashi Ishida, Yoshihiko Tomita, Masaya Kusumoto