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| Number | Title | Issue Date |
| 7951241 | Carbon black aqueous dispersion and method of producing the same A carbon black aqueous dispersion exhibits excellent dispersibility in an aqueous medium and exhibits excellent rubbing resistance (quick-drying properties), discharge stability, and the like as an aqueous black ink for an inkjet printer or the like. The carbon blac... | 05/31/2011 |
| 7922805 | Method of preparing oxidized modified pigments and inkjet ink compositions comprising the same The present invention relates to oxidized modified pigments and dispersions as well as methods of preparing them. Also disclosed are aqueous inkjet ink compositions comprising oxidized modified pigments. ... | 04/12/2011 |
| 7300507 | Emulsion ink A water-in-oil emulsion ink comprises a water phase and an oil phase, wherein the water phase comprises a carbon black pigment having a pH of less than 6. The emulsion ink maintains stable rheology on ageing. ... | 11/27/2007 |
| 7294185 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium sal... | 11/13/2007 |
| 7232480 | Modified carbon black carbon black dispersion liquid and water base ink There are provided a carbon black according to which long-term stable storage is possible, clogging is not prone to occurring, and the OD value is high and hence printing with a deep black color is possible, or a carbon black that can be used in a water-based ink th... | 06/19/2007 |
| 7220304 | Modified carbon black dispersion liquid and water base ink containing the same The present invention provides a water-based ink that is used in ink jet printer printing, with a writing instrument, or the like, that has a low settling rate and for which clogging is not prone to occurring, that can be stored stably for a long period without the ... | 05/22/2007 |
| 7220793 | Curable film-forming composition exhibiting improved resistance to degradation by ultraviolet light A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functio... | 05/22/2007 |
| 7217405 | Method for producing post-treated carbon black The invention concerns a method for producing post-treated carbon black, where the carbon black is fluidized in the fluidized bed while adding fluidizing agents and brought into contact with a post-treatment agent. ... | 05/15/2007 |
| 7175930 | Conducting polymer-grafted carbon material for fuel cell applications A composition comprising particulate carbonaceous material and a conducting polymer containing hetero atoms. The composition can further comprise a metal. Devices comprising the composition can be constructed including supported electrocatalysts, membrane electrode ... | 02/13/2007 |
| 6958308 | Deposition of dispersed metal particles onto substrates using supercritical fluids A method for producing dispersed metal particles on a substrate and the compositions produced is disclosed. A method for producing the particles comprises exposing an organometallic and a particulate substrate to supercritical or near supercritical fluid under condi... | 10/25/2005 |
| 6852156 | Self-dispersing pigment and process of making and use of same A process is provided in which a pigment is oxidated with ozone in an aqueous environment in which the mixture of ozone, water and pigment is subjected to a dispersive mixing operation; and/or the pH of the mixture is maintained in a range of 6-8, whereby the pigmen... | 02/08/2005 |
| 6827772 | Carbon black and compositions containing same Novel carbon blacks are described which have a volatile content of from about 1.5 to about 3.5 and/or a moisture content of at least 0.5 along with one or more analytical properties. Inks and coating and other compositions are further described which include the car... | 12/07/2004 |
| 6828015 | Composite containing thin-film particles having carbon skeleton, method of reducing the thin-film particles, and process for the production of the composite There are provided a composite which is formed of a component (a) or a component (b) and a component (c), or the component (a) or the component (b) and a component (d), and is suitable for various uses such as an electrically-conductive material, (a) oxidized form t... | 12/07/2004 |
| 6740151 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the diazonium sal... | 05/25/2004 |
| 6723161 | Method for oxidizing organic pigment A method for oxidizing an organic pigment including dispersing the pigment in an aqueous medium and exposing the dispersed pigment to ultrasonic radiation, whereby the exposed pigment exhibits from 3 to 10 microequivalents of carboxylic acid, or salts thereof, per s... | 04/20/2004 |
| 6645287 | Coating compositions comprising high t-area carbon products The present invention discloses coating compositions comprising a liquid vehicle and a carbon product having a t-area greater than or equal to 400 m2 /g. In addition, the present invention discloses coating compositions comprising a liquid vehi... | 11/11/2003 |
| 6623787 | Method to improve the stability of dispersions of carbon A method for preventing a carbon dispersion from increasing in viscosity during use is described. The dispersion comprises graphite particles or carbon black particles or a combination of both dispersed in a fluid. The method involves lowering the suscept... | 09/23/2003 |
| 6596068 | Aqueous ink composition Disclosed is an aqueous ink composition comprising an aqueous medium and a surface-modified pigment capable of dispersing and/or dissolving in water without a dispersant, wherein the composition has a free monovalent anion concentration of 250 ppm or less... | 07/22/2003 |
| 6596396 | Thin-film-like particles having skeleton constructed by carbons and isolated films Thin-film-like particles and isolated films of an extremely small thickness having a skeleton constructed by carbons are provided. The thin-film-like particles take independent shapes, have a thickness of 0.4 to 10 nm and a breadth in a planar direction o... | 07/22/2003 |
| 6554891 | Ink composition and method for inkjet recording using the same An ink composition containing a surface-modified pigment is provided which can realize anti-clogging properties and images having high print density. The ink composition comprises at least a colorant, glycerin, a glycol compound, and water, the colorant b... | 04/29/2003 |
| 6503311 | Aqueous carbon black dispersions Aqueous carbon black dispersions, wherein the carbon black dispersions contain no wetting agent and contain at least one ozone-oxidized carbon black. The dispersions are produced by dispersing ozone-oxidized carbon black and other constituents in water. T... | 01/07/2003 |
| 6494946 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the di... | 12/17/2002 |
| 6471763 | Oxidatively aftertreated carbon black An oxidatively aftertreated carbon black has a content of volatile constituents of more than 10 wt. %, based on its total weight, and the ratio of its CTAB surface area to the iodine adsorption number is greater than 2 m2 /mg. The carbon black ... | 10/29/2002 |
| 6468342 | Aqueous pigment dispersion and process for producing the same It is provided an aqueous pigment dispersion having improved dispersing stability in which carbon black shows appropriate initial dispersing property and long-term dispersing property to water, and carbon black particles are less susceptible to aggregatio... | 10/22/2002 |
| 6399674 | Ink set and ink-jet color recording method using the same Disclosed herein is a set of water-based pigment inks for ink-jet, comprising a black pigment ink and other pigment inks different in hue from the black pigment ink, which the pigment inks each comprise water, a water-soluble organic solvent and an aqueou... | 06/04/2002 |
| 6287374 | Pigment and process for producing the same, water base ink and process for producing the same In the present invention, a pigment is irradiated with a microwave so as to improve a surface thereof. Further, letting A be an area of a portion having hydrophilic groups on a surface of the pigment and B be an area of the other portion thereon, which ar... | 09/11/2001 |
| 6221143 | Cationic pigments and aqueous compositions containing same The present invention relates to cationic pigments having an organic group which comprises: a) at least one aromatic group, at least one C1 -20 alkyl group, or both; and b) at least one cationically charged ionic group, at least one ... | 04/24/2001 |
| 6221142 | Superior waterfastness and bleed control with specifically treated pigments for ink-jet printing The ink of the invention comprises a vehicle and a colorant. The colorant is a water-insoluble pigment that has been chemically modified to be water dispersable by addition of functional groups to the surface of the pigment resulting in water soluble colo... | 04/24/2001 |
| 6214100 | Ink-jet printing inks containing ester modified macromolecular chromophores The ink of the invention comprises a vehicle and a macromolecular chromophore colorant. The colorant is a water-insoluble pigment that has been chemically modified to be water dispersible by addition of functional groups to the surface of the pigment resu... | 04/10/2001 |
| 6123759 | Carbon black, process for producing the same, and aqueous dispersion and water-base ink both containing the same A method for producing oxidation-treated carbon black, which comprises oxidizing carbon black by ozone in the presence of water until the total amount of acid groups of the carbon black becomes at least 3 μequ/m2.... | 09/26/2000 |
| 6120594 | Hydrogen peroxide oxidation of carbon black A process for the oxidation of carbon black with an aqueous mixture of hydrogen peroxide where carbon blacks are mixed with aqueous hydrogen peroxide then dried in order to efficiently oxidize industrial quantities of carbon black using standard carbon bl... | 09/19/2000 |
| 6099632 | Aqueous pigment ink composition Disclosed is an aqueous pigment ink composition comprising at least water and carbon black, wherein a surface oxygen content of said carbon black is not less than 0.07 in atom-numeral ratio based on carbon atom measured by an X-ray photoelectron spectrosc... | 08/08/2000 |
| 6087434 | Pigment composition for liquid toner A pigment composition for liquid toner comprising a carbon black, a resin and non-aqueous solvent, the carbon black and the resin being dissolved and dispersed in the non-aqueous solvent, and any one of (1) carbon black having a grit content of not more t... | 07/11/2000 |
| 6042643 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the di... | 03/28/2000 |
| 5968243 | Modified carbon products with leaving groups inks and coatings containing modified carbon products A modified carbon product is described which comprises carbon having attached at least one organic group wherein the organic group comprises a) at least one aromatic group or a C1 -C12 alkyl group, and b) a group having the formula -... | 10/19/1999 |
| 5861447 | Aqueous pigment ink composition An aqueous pigment ink composition comprising an oxidized carbon black obtained by wet-oxidation of a carbon black using a hypohalous acid and/or salt thereof, and a water-soluble cationic polymer or oligomer in an aqueous medium. The aqueous pigment ink ... | 01/19/1999 |
| 5851280 | Reaction of carbon black with diazonium salts, resultant carbon black products and their uses Processes for preparing a carbon black product having an organic group attached to the carbon black. In one process at least one diazonium salt reacts with a carbon black in the absence of an externally applied electric current sufficient to reduce the di... | 12/22/1998 |
| 5846307 | Aqueous pigment ink composition Disclosed is an aqueous pigment ink composition comprising water and oxidized carbon black dispersed stably in the water, wherein said oxidized carbon black is obtained by oxidizing carbon black using hypohalous acid and/or salt thereof and wherein at lea... | 12/08/1998 |
| 5718746 | Process of producing aqueous pigment ink The present invention provides a process for producing aqueous pigment ink which forms a black matrix having high optical density, excellent flatness of a film and low conductivity, and imparts high resolution power to a color filter. The process comprise... | 02/17/1998 |
| 5632927 | Process for preparing a non-conductive substrate for electroplating The modification of carbon particles is disclosed for achieving enhanced plating upon a non-conductive surface which has been previously treated with said modified carbon particles. The invention is particularly useful in plating through holes of printed ... | 05/27/1997 |
