Patents by Inventor Raouf Botros
Raouf Botros has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9421808Abstract: An inkjet receiving media comprising a substrate having a transparent topmost layer coated thereon at solid content of from 0.3 to 2.5 g/m2, wherein the topmost layer includes from 30-70 wt % of one or more aqueous soluble salts of multivalent metal cations, 5 to 20 wt % of a cross-linked hydrophilic polymer binder, 4 to 12 wt % of a cationic polymer to stabilize 10 to 40 wt % silica that is less than 200 nm is size. Improved optical density, reduced mottle and improved wet abrasion resistance are provided when the receiver is printed with an aqueous pigment-based ink. In further embodiments, the topmost layer can further include high levels of silica that makes the layer porous.Type: GrantFiled: March 27, 2013Date of Patent: August 23, 2016Assignee: EASTMAN KODAK COMPANYInventors: Wayne Thomas Ferrar, Thomas Joseph Dannhauser, Raouf Botros, Peter G. Bessey, Hwei-Ling Yau
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Patent number: 9067448Abstract: A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium including a substrate and having a topmost layer coated thereon, where the coating composition has a solids content which includes at least 30 wt % of one or more aqueous soluble salts of multivalent metal cations, and particles had primarily of polymer having a Rockwell Hardness of less than R90 and having a mode equivalent spherical diameter of at least about 2 micrometers. When coated, the composition provides at least 0.01 g/m2 of particles included primarily of polymer having a Rockwell Hardness of less than R90 and which have an equivalent spherical diameter of i) at least about 2 micrometers and ii) at least 0.1 micrometer greater than the minimum coated thickness of the topmost layer.Type: GrantFiled: May 2, 2012Date of Patent: June 30, 2015Assignee: EASTMAN KODAK COMPANYInventors: Thomas Joseph Dannhauser, Yang Xiang, Raouf Botros
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Publication number: 20140292951Abstract: An inkjet receiving media comprising a substrate having a transparent topmost layer coated thereon at solid content of from 0.3 to 2.5 g/m2, wherein the topmost layer includes from 30-70 wt % of one or more aqueous soluble salts of multivalent metal cations, 5 to 20 wt % of a cross-linked hydrophilic polymer binder, 4 to 12 wt % of a cationic polymer to stabilize 10 to 40 wt % silica that is less than 200 nm is size. Improved optical density, reduced mottle and improved wet abrasion resistance are provided when the receiver is printed with an aqueous pigment-based ink. In further embodiments, the topmost layer can further include high levels of silica that makes the layer porous.Type: ApplicationFiled: March 27, 2013Publication date: October 2, 2014Inventors: WAYNE THOMAS FERRAR, THOMAS JOSEPH DANNHAUSER, RAOUF BOTROS, PETER G. BESSEY, HWEI-LING YAU
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Publication number: 20130293647Abstract: A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium comprising a substrate and having a topmost layer coated thereon, where the coating composition has a solids content which comprises at least 30 wt % of one or more aqueous soluble salts of multivalent metal cations, and particles comprised primarily of polymer having a Rockwell Hardness of less than R90 and having a mode equivalent spherical diameter of at least about 2 micrometers. When coated, the composition provides at least 0.01 g/m2 of particles comprised primarily of polymer having a Rockwell Hardness of less than R90 and which have an equivalent spherical diameter of i) at least about 2 micrometers and ii) at least 0.1 micrometer greater than the minimum coated thickness of the topmost layer.Type: ApplicationFiled: May 2, 2012Publication date: November 7, 2013Inventors: Thomas Joseph Dannhauser, Yang Xiang, Raouf Botros
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Patent number: 8562126Abstract: A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium comprising a substrate and having a topmost layer coated thereon, where the coating composition and topmost layer comprise one or more aqueous-soluble salts of multivalent metal cations, a cationic polyelectrolyte comprising amidine moieties, and one or more second polymer which is distinct from the cationic polyelectrolyte and which is selected from the group consisting of a polyamide-epichlorohydrin, a polyamine solution polymer, and a waterborne or water-dispersible polyurethane. The topmost layer is advantageously at a solid content of from 0.1 to 5 g/m2, and comprises from 30-90 wt % of the one or more aqueous soluble salts of multivalent metal cations, at least 0.01 g/m2 of the cationic polyelectrolyte comprising amidine moieties, and at least 0.005 g/m2 of the second polymer which is distinct from the cationic polyelectrolyte comprising amidine moieties.Type: GrantFiled: March 29, 2012Date of Patent: October 22, 2013Assignee: Eastman Kodak CompanyInventors: Yang Xiang, Raouf Botros
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Publication number: 20130257988Abstract: A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium comprising a substrate and having a topmost layer coated thereon, where the coating composition and topmost layer comprise one or more aqueous-soluble salts of multivalent metal cations, a cationic polyelectrolyte comprising amidine moieties, and one or more second polymer which is distinct from the cationic polyelectrolyte and which is selected from the group consisting of a polyamide-epichlorohydrin, a polyamine solution polymer, and a waterborne or water-dispersible polyurethane. The topmost layer is advantageously at a solid content of from 0.1 to 5 g/m2, and comprises from 30-90 wt % of the one or more aqueous soluble salts of multivalent metal cations, at least 0.01 g/m2 of the cationic polyelectrolyte comprising amidine moieties, and at least 0.005 g/m2 of the second polymer which is distinct from the cationic polyelectrolyte comprising amidine moieties.Type: ApplicationFiled: March 29, 2012Publication date: October 3, 2013Inventors: Yang Xiang, Raouf Botros
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Patent number: 8430952Abstract: A composition for coating or printing on a substrate, comprising a liquid vehicle and a water soluble branched polyethyleneimine comprising amino groups which have been alkylated or hydroxyalkylated, wherein the branched polyethyleneimine prior to alkylation or hydroxyalkylation comprises a combination of primary, secondary, and tertiary amino groups, and wherein at least 1% of the primary amino groups of the polyethyleneimine polymer are alkylated or hydroxyalkylated with at least one alkyl or hydroxyalkyl group having at least 4 carbon atoms.Type: GrantFiled: October 15, 2008Date of Patent: April 30, 2013Assignee: Eastman Kodak CompanyInventors: Raouf Botros, Tom N. Huang, Russell H. Tobias, Eric A. Fossum
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Publication number: 20090043040Abstract: A composition for coating or printing on a substrate, comprising a liquid vehicle and a water soluble branched polyethyleneimine comprising amino groups which have been alkylated or hydroxyalkylated, wherein the branched polyethyleneimine prior to alkylation or hydroxyalkylation comprises a combination of primary, secondary, and tertiary amino groups, and wherein at least 1% of the primary amino groups of the polyethyleneimine polymer are alkylated or hydroxyalkylated with at least one alkyl or hydroxyalkyl group having at least 4 carbon atoms.Type: ApplicationFiled: October 15, 2008Publication date: February 12, 2009Inventors: Raouf Botros, Tom N. Huang, Russell H. Tobias, Eric A. Fossum
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Publication number: 20080078304Abstract: A composition for coating or printing on a substrate, comprising a liquid vehicle and a water soluble branched polyethyleneimine comprising amino groups which have been alkylated or hydroxyalkylated, wherein the branched polyethyleneimine prior to alkylation or hydroxyalkylation comprises a combination of primary, secondary and tertiary amino groups, and wherein at least 1% of the primary amino groups of the branched polyethyleneimine polymer are alkylated or hydroxyalkylated with at least one alkyl or hydroxyalkyl group having 4-6 carbon atoms.Type: ApplicationFiled: September 29, 2006Publication date: April 3, 2008Inventors: Raouf Botros, Tom N. Huang, Russell H. Tobias, Eric R. Fossum
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Patent number: 7091276Abstract: A substrate coating is provided for application in association with ink jet ink imaging on the substrate. The coating enhances permanence of black and specialty non-black color ink jet prints. The coating material of the present invention can be applied to any non-porous or semi-porous substrate as a pre-print coating. The coating comprises a combination of two polymers, and DMEA to discourage adverse interaction between the two polymers.Type: GrantFiled: August 13, 2003Date of Patent: August 15, 2006Assignee: Eastman Kodak CompanyInventor: Raouf Botros
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Patent number: 7037973Abstract: A coating composition for application on a porous substrate for use with a roller printing application. The coating composition comprises an ethoxylated polyethyleneimine polymer, a pH modifier, a thickening additive, an ammonium sulfate, a surfactant, and water. Optional additives can comprise a biocide, a lower aliphatic alcohol and a UV fluorescent dye. When the coating composition is applied to the porous substrate, waterfast prints are produced which are resistant to smudging or bleeding when subjected to moisture. The coating composition can be applied to the porous substrate as a pre-print coating or a post-print coating.Type: GrantFiled: June 27, 2001Date of Patent: May 2, 2006Assignee: Eastman Kodak CompanyInventors: Raouf Botros, Randolph W. Spratt
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Publication number: 20050038148Abstract: A substrate coating is provided for application in association with ink jet ink imaging on the substrate. The coating enhances permanence of black and specialty non-black color ink jet prints. The coating material of the present invention can be applied to any non-porous or semi-porous substrate as a pre-print coating. The coating comprises a combination of two polymers, and DMEA to discourage adverse interaction between the two polymers.Type: ApplicationFiled: August 13, 2003Publication date: February 17, 2005Inventor: Raouf Botros
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Publication number: 20040036752Abstract: An ink additive, specifically 1,4 butanediol, is added to color inks. When 1,4-butanediol is added to the inks, curl and cockle of the printed substrate is significantly reduced without reducing surface tension of the ink. Surface tension of process color inks for some printers are kept high to eliminate color-to-color bleed and to reduce showthrough on the opposite side of the paper. The 1,4-butanediol additive provides an anti-cockling advantage without adversely affecting the surface tension of the ink.Type: ApplicationFiled: August 22, 2002Publication date: February 26, 2004Applicant: Scitex Digital Printing, Inc.Inventors: Raouf Botros, Nuh-Tome Huang
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Publication number: 20040035325Abstract: A substrate coating is provided for application in association with ink jet ink imaging on the substrate. The coating material, for application on a printable substrate for use with an ink jet printing system, includes a substrate property enhancing component, a surfactant, and deionized water. When the coating material is applied to the printable substrate, prints are produced which have improved print quality. The coating can result in enhanced permanence of black and specialty non-black color ink jet prints, when the substrate enhancing component is a polymer. The coating material of the present invention can also be applied to the porous substrate as a pre-print coating to reduce paper cockle and curl, when the substrate enhancing component is a polyhydroxy compound.Type: ApplicationFiled: August 22, 2002Publication date: February 26, 2004Applicant: Scitex Digital Printing, Inc.Inventors: Raouf Botros, Russell H. Tobias, Lutfar Rahman
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Publication number: 20030073758Abstract: An ink composition is proposed for application on a continuous ink jet printed non-porous substrate. The ink composition comprises a solvent dye, preferably a solvent black dye. The ink composition also comprises an acrylic polymer, such as a styrene acrylic copolymer. A pH modifier maintains pH of the ink composition between about 7.5 and about 9. Finally, the present invention comprises a volatile solvent which can be a mixture of denatured alcohol, a ketone such as MEK, and/or water.Type: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Applicant: Scitex Digital Printing, Inc.Inventor: Raouf Botros
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Publication number: 20030018101Abstract: A coating composition for application on a porous substrate for use with a roller printing application. The coating composition comprises an ethoxylated polyethyleneimine polymer, a pH modifier, a thickening additive, an ammonium sulfate, a surfactant, and water. Optional additives can comprise a biocide, a lower aliphatic alcohol and a UV fluorescent dye. When the coating composition is applied to the porous substrate, waterfast prints are produced which are resistant to smudging or bleeding when subjected to moisture. The coating composition can be applied to the porous substrate as a pre-print coating or a post-print coating.Type: ApplicationFiled: June 27, 2001Publication date: January 23, 2003Applicant: Scitex Digital Printing, Inc.Inventors: Raouf Botros, Randolph W. Spratt
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Patent number: 6341857Abstract: In a continuous ink jet printing system, bleed and pullback are minimized by selecting an ink set having a particular print order, with each ink having its components selected to equalize the surface tensions of the inks. By equalizing the surface tensions, the percentage of density of the primary ink which can be printed increases, thereby increasing the secondary and tertiary color gamut.Type: GrantFiled: May 18, 2000Date of Patent: January 29, 2002Assignee: Scitex Digital Printing, Inc.Inventors: Raouf Botros, Michael J. Piatt
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Patent number: 6280512Abstract: An ink jet ink composition comprises a color dye, a polymer, at least one water soluble organic solvent, and at least one ammonium salt for enhancement of waterfastness. The ink preferably comprises 1-10% ethoxylated polyethyleneimine to which is added 1-8% N-methyl-pyrrolidone, and up to 1% of the ammonium salt, to increase the waterfastness of the ink to a level greater than 70%.Type: GrantFiled: July 28, 1999Date of Patent: August 28, 2001Assignee: Scitex Digital Printing, Inc.Inventor: Raouf Botros
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Patent number: 6162846Abstract: An ink jet ink composition comprises a liquid vehicle and a dye modified to attach polymeric chains to the dye. The dye is water soluble and selected from the group consisting of Direct Dyes, Acid Dyes and Food Dyes. The polymer is selected from the group comprising polyethoxylated aromatic amines to enhance affinity of the dye to a cellulosic substrate. The modified dye in this ink jet composition has lower solubility and, therefore, can be used to formulate waterfast inks for ink jet printers.Type: GrantFiled: December 12, 1994Date of Patent: December 19, 2000Assignee: Scitex Digital Printing, Inc.Inventor: Raouf Botros
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Patent number: 5730789Abstract: An ink jet ink composition comprises a liquid vehicle, a dye, a hydroxyalkylated polyethyleneimine, and an ammonium salt for enhancement of waterfastness. The ammonium salt preferably comprises less than 1% by weight of the ink composition, and is added to a combination of the dye and ethoxylated polyethyleneimine. The ink jet ink composition increases the waterfastness of the ink to a level greater than 85%.Type: GrantFiled: July 29, 1996Date of Patent: March 24, 1998Assignee: Scitex Digital Printing, Inc.Inventor: Raouf Botros