The Nitrogen Is Part Of A Cyano Group Patents (Class 106/31.45)
  • Publication number: 20140267514
    Abstract: There is provided a black ink for ink jet textile printing which includes a disperse dye (A), a disperse dye (B), a disperse dye (C), water, and an organic solvent. The disperse dye (A) is at least one of C.I. Disperse Blue 60 and C.I. Disperse Blue 165, the disperse dye (B) is at least one of C.I. Disperse Red 92, and C.I. Disperse Red 154, and the disperse dye (C) is C.I. Disperse Yellow 163.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 18, 2014
    Applicant: Seiko Epson Corporation
    Inventor: Yusuke Mizutaki
  • Publication number: 20140084578
    Abstract: There is provided a compound represented by the following formula (1): wherein each of R1a to R1k independently represents a hydrogen atom or a monovalent substituent, the substituents may combine with each other to form a ring, each of M1a and M1b independently represents a hydrogen atom or a monovalent counter cation, Y1 represents a nitrogen atom or a carbon atom having a hydrogen atom or monovalent substituent, A1 represents an aromatic group, and the aromatic group represented by A1 may contain a heteroatom or may have a substituent.
    Type: Application
    Filed: September 25, 2013
    Publication date: March 27, 2014
    Applicant: FUJIFILM Corporation
    Inventors: Kazunari YAGI, Shinya HAYASHI, Yutaro NORIZUKI, Takashi IIZUMI, Ichiro AMASAKI, Hiroshi YAMADA, Shigeaki TANAKA
  • Publication number: 20130257974
    Abstract: An aqueous black ink composition that produces a black recorded image that is stable even when stored for a long time period, exhibits a neutral black to gray color with low color saturation and no tinge, has a high printed image density and exhibits excellent fastness properties of the recorded image, particularly ozone-gas resistance. The ink composition contain at least one kind of coloring matter (I), which a coloring matter represented by formula (1) below, a tautomer thereof, or a salt of the coloring matter or the tautomer; at least one kind of coloring matter (II), which is a coloring matter represented by formula (2) below or a salt thereof; and coloring matter (III), which is a coloring matter having an azo group other than coloring matters (I) and (II), or a salt thereof.
    Type: Application
    Filed: December 14, 2011
    Publication date: October 3, 2013
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Akira Kawaguchi, Takashi Yoshimoto, Kenji Ooshima
  • Patent number: 8496743
    Abstract: By using an ink composition which contains C.I. Acid Red 52, C.I. Acid Red 92, and a specific dye at a ratio in a specific range, it is possible to provide recorded matter having good lightfastness without impairing fluorescence intensity and color developability.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: July 30, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Shuhei Mori
  • Publication number: 20120075393
    Abstract: An ink set is provided and includes at least a yellow ink composition, a magenta ink composition, and a cyan ink composition, wherein the yellow ink composition contains as a colorant at least one selected from the group consisting of a compound represented by formula (Y-I) and a salt thereof. where R4 represents a monovalent group; R5 represents —OR6 or —NHR7; each of R6 and R7 represents a hydrogen atom or a monovalent group; X3 represents a divalent linking group; n3 represents 0 or 1; Ar3 represents a divalent heterocyclic group; and Ar4 represents an alkyl group, an aryl group, or a monovalent triazine ring group.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: FUJIFILM CORPORATION
    Inventor: Shinya ISHIDA
  • Publication number: 20120050382
    Abstract: Provided is an ink jet ink composition including at least: a first color material which is a bisazo compound, a second color material which is a trisazo compound, a third color material which is a tetraazo compound, and a surfactant.
    Type: Application
    Filed: August 18, 2011
    Publication date: March 1, 2012
    Inventors: Yasuhiro Tanaka, Ikuko Tsurui
  • Publication number: 20110229648
    Abstract: By using an ink composition which contains C.I. Acid Red 52, C.I. Acid Red 92, and a specific dye at a ratio in a specific range, it is possible to provide recorded matter having good lightfastness without impairing fluorescence intensity and color developability.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 22, 2011
    Applicant: Seiko Epson Corporation
    Inventor: Shuhei Mori
  • Publication number: 20110200800
    Abstract: A compound of Formula (1) or a salt thereof: wherein: X is N or C(CN); Z is optionally substituted naphthyl; and Ar is an aryl group carrying at least one nitro substituent and optionally one or more further substituents. Also compositions, inks, printing processes, printed material and ink-jet cartridges.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 18, 2011
    Inventors: Clive Edwin Foster, David Phillip Devonald, Toshiki Fujiwara
  • Publication number: 20100255275
    Abstract: A compound of Formula (1) and salts thereof: wherein: R1 is optionally substituted C1-4alkyl; R2 is optionally substituted aryl; R3 is CN or SO2R4; R4 is optionally substituted C1-4-alkyl or optionally substituted aryl; n is 1 to 5. also ink-jet compositions, processes and printed material.
    Type: Application
    Filed: September 3, 2008
    Publication date: October 7, 2010
    Inventors: Gavin Wright, Toshiki Fujiwara
  • Publication number: 20090238976
    Abstract: The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).
    Type: Application
    Filed: February 20, 2009
    Publication date: September 24, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mitsuru Ishii, Hiroshi Tomioka, Daiji Okamura, Hideki Yamakami, Satoshi Kudo, Otome Mori
  • Publication number: 20090181170
    Abstract: The invention relates to monoazo colorants derived from pyrazolobenzodiazinedioxides of Formula 1: wherein R1 and R2 are hydrogen or any non-metallic group, n is 0-4, R3 is hydrogen, acyl, aryl, alkenyl, alkynyl or alkyl, A represents an aromatic heterocyclic ring or an aromatic group of Formula 2: wherein R6 and R8 are hydrogen, alkyl, sulfonic acid, or 1-4 carbon alkoxy, R7 is any non-metallic group, m is 0-3, and R6 and R7, R7 and R8, or, when m>1, two R7 groups is can be joined to form a fused carbocyclic or heterocyclic aromatic or non-aromatic ring. The invention also relates to an aqueous ink that comprises at least one colorant of Formula 1: wherein A represents an aromatic or heteroaromatic ring, and A can be bonded to other rings that can be aromatic, aliphatic or heterocyclic, and an ink printing method using the colorant-containing ink.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 16, 2009
    Inventors: Steven G. Link, Joan C. Potenza, Ann L. Carroll-Lee
  • Publication number: 20090165673
    Abstract: A water-based ink includes a dye (1) represented by the general formula (1); a dye (2) at least one dye selected from the group consisting of a dye having free acid that is represented by the general formula (2-1), C. I. Acid Red 52 and 289; DPP; and a surfactant represented by the general formula (3). The dyes, DPP, and the surfactant are blended so as to satisfy the conditions (A) to (D). (A) a total amount of the dye (1) and (2) relative to a total amount of the ink is about 2 wt % to 5 wt % (B) weight ratio between the dye (1) and (2) in the ink is about 9:1 to 7:3 (C) an amount of the surfactant relative to a total amount of the ink is about 0.5 wt % to 2.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihiko TANIGUCHI, Satoshi OKUDA
  • Publication number: 20090167830
    Abstract: A water-based ink for ink-jet recording includes a coloring agent and water. The coloring agent includes a dye represented by the following general formula (1). In the ink, an amount of glycerin is set so as to satisfy the following condition (A). 3.5X?5?Y1?3.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Yuko IWAMURA
  • Publication number: 20090165671
    Abstract: A water-based ink for ink-jet recording includes a dye represented by the general formula (1); water; dipropylene glycol propyl ether (DPP); and a surfactant represented by the general formula (2). The dye, DPP, and the surfactant are blended so as to satisfy the conditions (A) and (B). (A) an amount of surfactant represented by general formula (2) relative to a total amount of the ink is in the range of about 0.5 wt % to about 2.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Satoshi OKUDA, Akihiko TANIGUCHI
  • Publication number: 20090123711
    Abstract: Dye of the formula (I) where Ra is —C6H5-substituted C1-C4-alkyl, Rb is methoxy or ethoxy Rc is methyl or ethyl, its preparation and also the use of this dye in dye mixtures.
    Type: Application
    Filed: June 7, 2006
    Publication date: May 14, 2009
    Inventor: Helmut Sieber
  • Publication number: 20090053480
    Abstract: A mixture of compounds of Formula (1) and salts thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus; R1 is H or optionally substituted C1-4alkyl; R2 is optionally substituted alkyl or optionally substituted heterocyclyl; R3 is H or optionally substituted C1-4alkyl; R4 is optionally substituted hydrocarbyl; w is 0.1 to 3.7 x is 0.1 to 3.7; y is 0.1 to 3.7; z is 0.1 to 3.7: and provided that the groups represented by y and z are different. Also compositions and inks, printing processes, printed material and ink-jet printer cartridges.
    Type: Application
    Filed: April 11, 2006
    Publication date: February 26, 2009
    Inventor: Prakash Patel
  • Publication number: 20090000511
    Abstract: An ink set containing at least a yellow ink composition, a magenta ink composition, and a cyan ink composition: said magenta ink composition containing as a colorant at least one type of compound expressed by the formula M-1 in claim 1, and at least one type of compound expressed by the following formula M-2 in claim 1, the yellow ink composition containing as a colorant at least one type of compound expressed by the formula Y-1 in claim 1; and the cyan ink composition containing as a colorant at least one type of compound selected from the group consisting of compounds or salts thereof expressed by the Formula C-1 in claim 1.
    Type: Application
    Filed: September 28, 2007
    Publication date: January 1, 2009
    Inventors: Kazuhiko Kitamura, Akihito Sao, Hiroshi Fukumoto
  • Publication number: 20080302270
    Abstract: An ink set for ink-jet recording includes a plurality of color inks, wherein the following formulae (a) to (d) are satisfied. Light OD reduction rate (X %)=[(A?B)/A]×100??(a) Ozone OD reduction rate (Y %)=[(C?D)/C]×100??(b) Total OD reduction rate (Z %)=X+Y<about 40%??(c) Zmax?Zmin<about 15%??(d) “A” and “B” are OD values before and after a light fastness test for a first single-color patch, respectively, and “c” and “D” are OD values before and after an ozone resistance test for a second single-color patch, respectively. “Zmax” and “Zmin” are a maximum and a minimum of all the total OD reduction rates (Z), respectively.
    Type: Application
    Filed: March 20, 2008
    Publication date: December 11, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihiko TANIGUCHI, Narumi KOGA
  • Publication number: 20080178765
    Abstract: An ink-jet ink comprises an aqueous liquid vehicle, at least 1% by weight colorant; and a black-to-color bleed control enhancing amount of magnesium sulfate or hydrate thereof.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventor: Marlene McGorrin
  • Publication number: 20080178764
    Abstract: The present invention is directed to ink-jet inks, ink sets, and methods of printing images. The ink-jet ink can comprise a cyan phthalocyanine dye, a divalent salt, an anti-flocculent aromatic polyamine, and a liquid vehicle. The cyan phthalocyanine dye can be susceptible to destabilization by the presence of the salt, and the anti-flocculent aromatic polyamine can be present at a concentration that stabilizes the cyan phthalocyanine dye in the presence of the divalent salt.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventor: Larrie Deardurff
  • Publication number: 20070289487
    Abstract: An ink composition comprising a colorant, a solvent, a surfactant, and a defoaming agent is provided. The defoaming agent has a structure of Formula R1—X—(CH2CH2O)m-(CH CH3CH2O)n-R2 (I), in which, X is selected from the group consisting of COO, O, S, R3—N and R4(R5)—C; R1, R2, R3, R4, and R5 are each independently selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aryl group and a substituted or unsubstituted aralkyl group; m is an integer from 0 to 100; and n is a natural number from 1 to 100. The ink composition according to the exemplary embodiment exhibits low foaming properties in order to flow smoothly and has a good initial discharge capacity and less ink bleeding so that it is possible to achieve a high print quality during printing, and an ink cartridge including the same.
    Type: Application
    Filed: February 2, 2007
    Publication date: December 20, 2007
    Inventors: Cheol Ham, Seung-min Ryu
  • Patent number: 7256222
    Abstract: To provide a radiation-curable ink composition that can form a high-quality image on not only liquid absorbing materials to be recorded but also non-liquid absorbing materials to be recorded, is superior in curing properties in air, and is superior in storage stability, color tone, light fastness and water resistance of ink, and also to provide an image recording method. The radiation-curable ink composition comprises a monomer having a polymerizable group selected from the group consisting of an acryloyl group, a methacryloyl group, an allyl group, and a vinyl group, an oil-soluble dye, and from 0.005 to 1% by weight of a storage stabilizer, wherein the oil-soluble dye is dissolved in the ink.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 14, 2007
    Assignee: Fujifilm Corporation
    Inventors: Takahiro Ishizuka, Kazue Sano, Junichi Yamanouchi, Keiichi Tateishi
  • Patent number: 7241719
    Abstract: Disclosed is a dye combination and thermal dye transfer imaging element and imaging method comprising a yellow dye donor containing a combination of two or more yellow dyes, the combination of dyes exhibiting an RMS error of less than 0.015. Such dye combinations provide improved color matching vs. target colors.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: July 10, 2007
    Assignee: Eastman Kodak Company
    Inventors: Linda A. Kaszczuk, Charles H. Weidner, Derek D. Chapman, Ruizheng Wang
  • Patent number: 7135504
    Abstract: An ink composition for ultraviolet curable ink-jet recording including carbon black, a photopolymerizable compound and a photopolymerization initiator, comprising at least one selected from the group consisting of non-metallic phthalocyanine sulfonic acids, metal phthalocyanine sulfonic acids in which the central metal is Cu, Fe, Ni, Co, or Ti, and metal salts thereof, and a polymer dispersant containing a basic functional group. The photopolymerizable compound may dissolve the polymer dispersant.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: November 14, 2006
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yutaka Yamada, Hisao Yamaguchi, Osamu Oshima
  • Patent number: 7022858
    Abstract: A new class of alpha-cyanomethine and alpha-cyanopolymethine dyes is provided having moieties which serve for the covalent attachment to biological substrates and resulting in the fluorescent labeling of the substrates. The labeled substrates are useful in analytical techniques for the detection and measurement of biological and clinical compounds of interest. Of particular interest is a class of methine molecules which are non-fluorescent in buffer solutions but intensely fluoresce when they enter a cell.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: April 4, 2006
    Inventor: Spyros Theodoropulos
  • Patent number: 6903198
    Abstract: A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Mikoshiba, Tadashi Omatsu, Makoto Suzuki, Koushin Matsuoka, Masuji Motoki
  • Patent number: 6869909
    Abstract: Disclosed is a dye combination and a thermal dye transfer yellow donor element containing the combination of dyes useful for forming a light stable yellow image comprising a yellow dye having the formula: wherein: R1 and R2 each independently represents an alkyl group of from 1 to 10 carbons atoms or a cycloalkyl group of from 5 to 7 carbon atoms; R3 and R4 each independently represents hydrogen, or an unsubstituted lower alkyl group of 1 to 4 carbon atoms; each Y independently represents halogen, or a lower alkyl or alkoxy group of 1 to 4 carbon atoms; and m is 0 to 4. Such a dye combination and element provide improved color and stability, especially for proofing.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: March 22, 2005
    Assignee: Eastman Kodak Company
    Inventors: Ruizheng Wang, Linda A. Kaszczuk, Ann L. Carroll-Lee, Derek D. Chapman, Charles H. Weidner
  • Patent number: 6756488
    Abstract: A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: June 29, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Mikoshiba, Tadashi Omatsu, Makoto Suzuki, Koushin Matsuoka, Masuji Motoki
  • Patent number: 6755903
    Abstract: A metal chelated dyestuff for inkjet recording is described, which is a water soluble azo metal chelated compound formed from an azo compound represented by the following general formula (1) and a metal element and is good at the clearness of color tone, light resistance, indoor discoloring and fading property, solubility, storage stability, and the like.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: June 29, 2004
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masahiro Yamada, Tomio Yoneyama, Tomohiro Chino
  • Patent number: 6730780
    Abstract: An oil-soluble dye prepared by subjecting a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule to amidation: a water-based ink comprising the oil-soluble dye: and a process for preparing an oil-soluble dye, comprising halogenating a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule, and thereafter subjecting the resulting halogenated water-soluble dye to amidation. The Oil-soluble dye of the present invention can be suitably and favorably used for inks for inkjet recording, inks for ball-points pens, inks for markers, toners, paints such as lacquers, inks for felt pens, and the like.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: May 4, 2004
    Assignee: Kao Corporation
    Inventors: Shigemi Wakabayashi, Takehiro Tsutsumi, Kenji Kaida, Makoto Sakakibara
  • Patent number: 6723835
    Abstract: Compositions containing a solvent and at least one compound of Formula (1) in which: R1 represents H, an optionally substituted C1-8carbyl derived group, or a group of Formula A: in which c is from 2 to 6; R3 represents H or optionally substituted C1-8carbyl derived group; R4 and R5 independently represent an optional substituent; R2 represents an optionally substituted C1-8carbyl derived group; X, Y and Z independently represent H or an optional substituent; M represents H or a cation; and m and n independently represent 0, 1 or 2, are useful as colorants for color filters for displays. Compounds of Formula (1) wherein at least one of R1, R2, X, Y or Z, represent SO3M or PO3M2 are also provided.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: April 20, 2004
    Assignee: Avecia Limited
    Inventors: Christine Millard, Neil Anthony Tallant
  • Patent number: 6683151
    Abstract: The invention relates to a compound comprising a reaction product of (A) an isocyanate functional compound of which at least 40 wt. %, relative to the total amount of (A), has a molecular weight of at least about 500, and (B) a nitrogen-containing compound capable of reacting with said isocyanate functional compound (A). The reaction product has a molecular weight of less then about 20,000 and comprises an effective amount of groups that are able to form reversible intermolecular physical interactions such that a resulting compound shows polymeric mechanical properties at a temperature below a transition temperature. The nitrogen-containing compound is, for instance, melamine, urea, acetoguanamine, benzoguanamine, cyanamide, dicyanamide, thiourea, isocytosine, pyrimidone or aminopyridine. The supramolecular compound comprising a suitable amount of the reaction products exhibits a relatively high elongation at break.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: January 27, 2004
    Assignee: DSM N.V.
    Inventors: Jacobus A. Loontjens, Johan E. G. A. Jansen, Bartholomeus J. M. Plum
  • Patent number: 6617458
    Abstract: A new class of alpha-cyanomethine and alpha-cyanopolymethine dyes is provided having moieties which serve for the covalent attachment to biological substrates and resulting in the fluorescent labeling of the substrates. The labeled substrates are useful in analytical techniques for the detection and measurement of biological and clinical compounds of interest.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: September 9, 2003
    Inventor: Spyros Theodoropulos
  • Patent number: 6489452
    Abstract: An azo dye represented by the following general formula (1) and a process for making the azo dye is disclosed. The process comprises a step in which a diazonium salt is formed by the reaction between an aminopyrazole represented by the general formula (3) and an diazotizing agent, a step in which a compound represented by the general formula (5) is formed by the reaction between the diazonium salt and an aromatic coupling agent represented by the general formula (4), and a step in which an azo dye represented by the general formula (6) is formed by the reaction between the compound represented by the general formula (5) and an arylating agent or a heterylating agent in the presence of a base.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: December 3, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiichi Tateishi, Toshiki Fujiwara, Makoto Yamada
  • Patent number: 6455679
    Abstract: The present invention provides a novel heterylaniline azo dye as well as an ink-jet recording ink and an ink-jet recording method enabling the formation of an image having a good hue and high durability to light and ozone gas. The ink-jet recording ink contains a heterylaniline azo dye derivative having a novel structure. The ink-jet recording method is characterized in that an image is formed by using the ink described above on an image-receiving material comprising a support having thereon an ink-receiving layer containing white inorganic pigment particles.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: September 24, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiichi Tateishi, Toshiki Fujiwara, Yasushi Azuma
  • Publication number: 20020078857
    Abstract: A new class of alpha-cyanomethine and alpha-cyanopolymethine dyes is provided having moieties which serve for the covalent attachment to biological substrates and resulting in the fluorescent labeling of the substrates. The labeled substrates are useful in analytical techniques for the detection and measurement of biological and clinical compounds of interest.
    Type: Application
    Filed: July 6, 2001
    Publication date: June 27, 2002
    Inventor: Spyros Theodoropulos
  • Patent number: 6350305
    Abstract: A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the chromophore further being derived from at least one aromatic aldehyde having a para-nitrogen and containing electron donating groups selected from the group consisting of alkyls, cycloalkyls, and oligomers or polymers derived from alkyleneoxy or aryleneoxy moieties. The colorant can be utilized in resins, waxes and inks.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: February 26, 2002
    Assignee: Xerox Corporation
    Inventors: Clifford R. King, Jeffery H. Banning
  • Patent number: 6331203
    Abstract: An aqueous ink for a ball-point pen which is stable over time and has high pigment dispersion stability, includes a pigment, a water-soluble organic solvent, water, xanthane gum of about 0.01 to about 0.2 wt. % and a sodium alginate of about 0.2 to about 0.6 wt. % of a total amount of the ink.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: December 18, 2001
    Assignee: Kotobuki & Co., Ltd.
    Inventors: Katsuya Hattori, Akio Nakamura, Mikio Morishita
  • Patent number: 6303763
    Abstract: Dyes of the Formula (1) and tautomers thereof: wherein: A is optionally substituted phenyl; R1 is H, optionally substituted alkyl, optionally substituted alkenyl or optionally substituted alkynyl; R2 is H, CN, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aryl or a carbonamido group; and R3 is an optionally substituted 5- or 6-membered ring; provided that R1 is not methyl. Also claimed are inks comprising a dye of the Formula (1) an aqueous medium and a water-dissipatable polymer; a method of ink jet printing using the inks; and a substrate printed with an ink according to the invention.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: October 16, 2001
    Assignee: Avecia Limited
    Inventors: Barry Huston Meyrick, Mark Holbrook, Roy Bradbury
  • Patent number: 6235094
    Abstract: The invention encompasses a compound having the formula: wherein R1, Z and the carbonyl can be comprised by a common ring, wherein R1 comprises a chromophore that absorbs light from the visible wavelength range, and wherein n is an integer that is at least 12. The invention also encompasses a solid phase change ink composition. Such composition includes a phase change ink carrier and a colorant. The colorant comprises a chromophore that absorbs light from the visible wavelength range, and has the formula: wherein R1, Z and the carbonyl can be comprised by a common ring, wherein n is an integer that is at least 12. Additionally, the invention encompasses a method of forming a colorant.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: May 22, 2001
    Assignee: Xerox Corporation
    Inventors: Jeffrey H. Banning, Michael B. Meinhardt, Donald R. Titterington, Clifford R. King