Two Ring Nitrogens In The Pentacyclo Ring System (e.g., Quinacridones, Etc.) Patents (Class 546/49)
  • Patent number: 11879064
    Abstract: A technical problem of the present invention is to provide a condensed polycyclic organic pigment having excellent dispersion properties and dispersion stability. More specifically, the technical problem of the present invention is to provide a condensed polycyclic organic pigment in which a practically sufficient viscosity is achieved in terms of both the initial viscosity of a base ink and the viscosity over time of a base ink when used in the printing ink application. As a result of thorough studies on the surface state of organic pigment particles and interaction among components constituting a printing ink, it has been found that the technical problem can be solved by using a polyvalent metal inorganic salt in a condensed polycyclic organic pigment, thus accomplishing the present invention.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: January 23, 2024
    Assignee: DIC CORPORATION
    Inventors: Shogo Yamada, Hiromasa Kikuchi, Yukiko Higuchi, Hidehiro Ootake
  • Patent number: 10519315
    Abstract: The present disclosure relates to Quinacridone pigment and a process of preparation thereof. The Quinacridone pigment of the present disclosure exhibit higher chemical resistance to solvents, higher stability and higher resistance to acid and alkali.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 31, 2019
    Inventor: Keki Hormusji Gharda
  • Patent number: 9902857
    Abstract: Provided are a quinacridone pigment having a low content of a primary aromatic amine, a method for producing the same, and also a gravure and flexo ink, a colorant for plastic, a paint, a lithographic ink, a toner, or an ink-jet ink using the pigment. The quinacridone pigment having a low primary aromatic amine content is provided by washing a quinacridone pigment with at least one solvent selected from water and an organic solvent, or by adding an oxidizing agent to a pigment slurry including a quinacridone pigment and at least one solvent selected from water and an organic solvent to oxidatively decompose the aromatic amine.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: February 27, 2018
    Assignee: DIC Corporation
    Inventors: Kazuhiro Sugiyama, Kengo Yasui, Kozue Sunouchi
  • Patent number: 9385335
    Abstract: The present invention relates to phosphorescent organic electroluminescent devices which have a low concentration of the phosphorescent emitter in the emitting layer.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: July 5, 2016
    Assignee: Merck Patent GmbH
    Inventors: Christof Pflumm, Niels Schulte
  • Publication number: 20150060791
    Abstract: A condensed-cyclic compound of Formula 1: wherein, in Formula 1, groups X1, X11 to X14, L21, L22, R21, and R21, and variables a21, a22, b21, b22, c21, and c22 are described in the specification.
    Type: Application
    Filed: June 10, 2014
    Publication date: March 5, 2015
    Inventors: Chang-ju SHIN, Young-kwon KIM, Hyung-sun KIM, Moo-jin PARK, Joo-hee SEO, Eun-sun YU, Byoung-ki CHOI, Kyu-young HWANG
  • Publication number: 20150053934
    Abstract: A heterocyclic compound represented by Formula 1 and an organic light-emitting device including the same. The heterocyclic compound represented by Formula 1 has excellent light emitting characteristics and high charge transporting capabilities.
    Type: Application
    Filed: March 18, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sun-Young LEE, Yoon-Hyun KWAK, Bum-Woo PARK, Jong-Won CHOI, Wha-Il CHOI, So-Yeon KIM, Ji-Youn LEE
  • Patent number: 8901298
    Abstract: The present invention relates to condensed aromatic compounds with multiple ring bridging of the general formulae (1), (2), (3), (4) and (5). The invention furthermore relates to the use of the compounds according to the invention in an organic electronic device and to a process for the preparation of the compounds according to the invention. The invention furthermore relates to an electronic device which comprises the compounds according to the invention.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: December 2, 2014
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Christof Pflumm, Holger Heil, Arne Buesing
  • Publication number: 20140225046
    Abstract: The present invention describes carbazole derivatives formula (1), where the following applies to the symbols used: Y is on each occurrence, identically or differently, CR or N; X is selected from C(R1)2, O, S, PR1, P(?O)R1 or BR1; characterised in that at least one group R is present which stands, identically or differently on each occurrence, for a group of the following formula (2), and/or in that at least one group R1 is present which stands for a group of the following formula (3) or (4), in particular for use as triplet matrix materials in organic electroluminescent devices. The invention furthermore relates to a process for the preparation of the compounds according to the invention and to electronic devices comprising same.
    Type: Application
    Filed: August 23, 2012
    Publication date: August 14, 2014
    Applicant: Merck Patent GmbH
    Inventors: Anja Jatsch, Amir Hossain Parham, Christof Pflumm, Philipp Stoessel, Jonas Valentin Kroesser, Rémi Manouk Anémian, Thomas Eberle
  • Publication number: 20140121336
    Abstract: The present invention addresses the problem of providing a new method for increasing the production of fine particles. Using at least two types of fluids to be processed, a raw material fluid containing at least one type of fine particle raw material and a fluid for treating the fine particle raw material, fine particles are obtained by mixing the fluids to be processed in a thin film fluid formed between at least two processing surfaces which are disposed to be faced with each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other. At this time, the production of the fine particles is increased by introducing the raw material fluid from the centers of the processing surfaces.
    Type: Application
    Filed: March 15, 2012
    Publication date: May 1, 2014
    Applicant: M. TECHNIQUE CO., LTD.
    Inventors: Masaki Maekawa, Kaeko Araki, Daisuke Honda, Masakazu Enomura
  • Publication number: 20140091298
    Abstract: The present invention provides a novel compound that is capable of largely improving a life span, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device in which the compound is included in an organic compound layer.
    Type: Application
    Filed: December 10, 2013
    Publication date: April 3, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sung Kil HONG, Yun Hwan KIM, Jungoh HUH, Seongmi CHO, Seong So KIM, Yongbum CHA
  • Patent number: 8557990
    Abstract: 2,5-di(p-methoxyanilino)terephthalic acid crystal types I and II are made by controlling the pH during the recovery of the oxidized product of the condensation of dimethylsuccinyl succinate with p-methoxyaniline. The resulting 2,5-di(p-methoxyanilino)-terephthalic acid can be converted into 2,9-dimethoxyquinacridone or a solid solution thereof having controlled characteristics.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: October 15, 2013
    Assignee: Sun Chemical Corporation
    Inventors: Brian Thompson, Daphne Rice, Tracie Tibbs, Wengan Wu, John Britanak, Edward H. Sung
  • Patent number: 8530660
    Abstract: The present invention relates to carboxamide-substituted dyes, the production and use of such dyes as labeling groups in analytics.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: September 10, 2013
    Assignee: ATTO-TEC GmbH
    Inventors: Jutta Arden-Jacob, Karl-Heinz Drexhage, Monika Hamers-Schneider, Norbert Kemnitzer, Alexander Zilles
  • Publication number: 20130224871
    Abstract: The present invention relates to polycyclic compounds of the general formula (I) which are distinguished by an amine substituent NR6R7 on the central carbon atom of the chromophore, to processes for their preparation, and to the use thereof for the determination of analytes.
    Type: Application
    Filed: October 18, 2011
    Publication date: August 29, 2013
    Applicant: ATTO-TEC GmbH
    Inventors: Alexander Zilles, Karl-Heinz Drexhage, Norbert Uwe Kemnitzer, Jutta Arden-Jacob, Monika Hamers-Schneider
  • Patent number: 8435341
    Abstract: A method of preparing a pigment includes in order the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with 1,4-butane sultone or 1,3-propane sultone in an alkaline medium to form sulfobutyl groups respectively sulfopropyl groups on the pigment surface; and c) adding acid to convert the sulfobutyl groups or sulfopropyl groups to sulfonic acid groups. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: May 7, 2013
    Assignee: AGFA-Gevaert N.V.
    Inventor: Geert Deroover
  • Patent number: 8430954
    Abstract: Novel crystal forms of solid solutions of 2,9-dimethyoxyquinacridone and 2,9-dichloroquinacridone. The crystal forms may be formed by a process comprising the steps of: a) heating a mixture of 2,5-di(4-methoxyanilino)terephthalic acid, and 2,5-di(4-chloroanilino)terephthalic acid in polyphorsphoric acid at a temperature less than 1050 C to form a mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone; b) combining the mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone with water; and c) heating the mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone at a temperature not more than 110° C. Another crystal form may be formed by the process of heating a mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone in a polar aprotic solvent. These products are may be used for coloring fibers, plastics, paints, coatings, printing inks, color filters, cosmetics, automotive coatings, textiles, fibers, powder coatings, in-mold coatings, laminate films, and the like.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 30, 2013
    Assignee: Sun Chemical Corporation
    Inventors: Brian Thompson, Daphne Rice, Tracie Tibbs, Bobby Mims, Thomas Flatt, Richard Faubion, Wengan Wu
  • Publication number: 20130099206
    Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting diode including the heterocyclic compound, and a flat display device including the organic light-emitting diode. wherein Ar1 to Ar4, X1, X2, Y1, Y2, L1, and m are defined as in the specification.
    Type: Application
    Filed: March 7, 2012
    Publication date: April 25, 2013
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Hye-Jin Jung, Seok-Hwan Hwang, Young-Kook Kim, Jin-O Lim, Sang-Hyun Han, Jong-Hyuk Lee
  • Publication number: 20130078467
    Abstract: A quinacridone pigment composition contains quinacridone microparticles which have durability and spectral characteristics equivalent to those required for a magenta color of a dye. The quinacridone pigment composition contains at least one type of quinacridone microparticles, wherein a difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the difference between the maximum and minimum transmittance is 30% or more in a transmission spectrum at 350 nm to 580 nm, or the difference between the maximum transmittance (Tmax1) and the minimum transmittance (Tmin) is 80% or more in a transmission spectrum at 350 nm to 800 nm and the wavelength (?max) at which the transmittance in a transmission spectrum at 350 nm to 500 nm becomes maximum is less than 430 nm. A method is provided for producing the quinacridone microparticles.
    Type: Application
    Filed: March 4, 2011
    Publication date: March 28, 2013
    Applicant: M. TECHNIQUE CO., LTD.
    Inventors: Masaki Maekawa, Daisuke Honda, Masakazu Enomura
  • Publication number: 20130053568
    Abstract: 2,5-di(p-methoxyanilino)terephthalic acid crystal types I and II are made by controlling the pH during the recovery of the oxidized product of the condensation of dimethylsuccinyl succinate with p-methoxyaniline. The resulting 2,5-di(p-methoxyanilino)-terephthalic acid can be converted into 2,9-dimethoxyquinacridone or a solid solution thereof having controlled characteristics.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 28, 2013
    Inventors: Brian Thompson, Daphne Rice, Tracie Tibbs, Wengan Wu, John Britanak, Edward H. Sung
  • Patent number: 8334387
    Abstract: The present invention relates to compounds useful for measuring aromatase activity. The invention further provides methods for measuring aromatase activity and for screening test agents which modulate aromatase activity. A kit is also provided for use in such screening methods.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: December 18, 2012
    Assignee: GE Healthcare UK Limited
    Inventors: John Gerard Whateley, Rahman Aziz Ismail, Peter Gordon Laughton
  • Publication number: 20120292603
    Abstract: A heterocyclic compound includes compounds represented by Formula 1 or Formula 2 below:
    Type: Application
    Filed: August 25, 2011
    Publication date: November 22, 2012
    Inventors: Yoon-Hyun Kwak, Seok-Hwan Hwang, Young-Kook Kim, Sun-Young Lee, Hye-Jin Jung, Jin-O Lim, Sang-Hyun Han, Hee-Joo Ko, Jong-Hyuk Lee
  • Patent number: 8263771
    Abstract: A method for manufacturing a dispersion of a quinoline derivative that is dispersed at a high concentration and has a small particle size. The method includes the steps of preparing a solution by dissolving an N-arylanthranilic acid derivative in an organosulfonic acid, heating the solution and obtaining a reaction liquid in which a quinoline derivative has been produced by a condensation ring-closing reaction, and obtaining a dispersion of the quinoline derivative by mixing the reaction liquid with an aqueous solution. The step of mixing the reaction liquid with an aqueous solution may be performed in a mixing field having a micro-channel.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: September 11, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Teshima, Kazumichi Nakahama, Akira Kuriyama
  • Publication number: 20120202927
    Abstract: A method of preparing a pigment includes the steps of: a) providing a mixture including: a pigment selected from the group of pigments including at least 50 wt % of C.I. Pigment Violet 23, C.I. Pigment Red 146, C.I. Pigment Red 176, C.I. Pigment Red 177, C.I. Pigment Violet 19 and C.I. Pigment Orange 13 based on the total weight of the pigment; alkyl nitrile; and at least one acid selected from the group consisting of sulfuric acid and chlorosulfuric acid, with the acid present in the mixture in amount of more than 2 wt % based on the total weight of the pigment; b) heating the mixture for more than 2 hours to a temperature of at least 70° C.; and c) filtering the mixture and washing the filtrand with a washing liquid containing water until the filtrate has a pH between 4 and 7. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed.
    Type: Application
    Filed: October 15, 2010
    Publication date: August 9, 2012
    Applicant: AGFA-GEVAERT N.V.
    Inventor: Geert Deroover
  • Publication number: 20120199044
    Abstract: A method of preparing a pigment includes in order the steps of: a) providing a pigment containing a nucleophile group under basic conditions; b) reacting the pigment with 1,4-butane sultone or 1,3-propane sultone in an alkaline medium to form sulfobutyl groups respectively sulfopropyl groups on the pigment surface; and c) adding acid to convert the sulfobutyl groups or sulfopropyl groups to sulfonic acid groups. Pigments obtainable by the method and non aqueous pigment dispersions are also disclosed.
    Type: Application
    Filed: October 20, 2010
    Publication date: August 9, 2012
    Applicant: AGFA-GEVAERT N.V.
    Inventor: Geert Deroover
  • Patent number: 8197592
    Abstract: Novel crystal forms of solid solutions of 2,9-dimethyoxyquinacridone and 2,9-dichloroquinacridone. The crystal forms may be formed by a process comprising the steps of: a) heating a mixture of 2,5-di(4-methoxyanilino)terephthalic acid, and 2,5-di(4-chloroanilino)terephthalic acid in polyphorsphoric acid at a temperature less than 1050 C to form a mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone; b) combining the mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone with water; and c) heating the mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone at a temperature not more than 110° C. Another crystal form may be formed by the process of heating a mixture of 2,9-dimethoxyquinacridone and 2,9-dichloroquinacridone in a polar aprotic solvent. These products are may be used for coloring fibers, plastics, paints, coatings, printing inks, color filters, cosmetics, automotive coatings, textiles, fibers, powder coatings, in-mold coatings, laminate films, and the like.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: June 12, 2012
    Assignee: Sun Chemical Corp.
    Inventors: Brian Thompson, Daphne Rice, Tracie Tibbs, Bobby Mims, Thomas Flatt, Richard Faubion, Wengan Wu
  • Patent number: 8119804
    Abstract: An organic semiconducting layer formulation containing an organic binder which has a permittivity, ?, at 1,000 Hz of 3.3 or less and a polyacene compound of Formula A: and processes for the preparation thereof and uses thereof in various electronic devices.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: February 21, 2012
    Assignee: Merck Patent GmbH
    Inventors: Beverley Anne Brown, Janos Veres, Remi Manouk Anemian, Richard Williams, Simon Dominic Ogier, Stephen William Leeming
  • Publication number: 20120018717
    Abstract: Disclosed are an organic electronic device and a compound thereof, and a terminal.
    Type: Application
    Filed: March 29, 2010
    Publication date: January 26, 2012
    Applicant: DUKSAN HIGH METAL CO., LTD.
    Inventors: Dongha Kim, Wonsam Kim, Daesung Kim, Daehyuk Choi, Junghwan Park, Jungcheol Park, Kiwon Kim, Hwasoon Jung, Yongwook Park, Hansung Yu, Soungyun Mun
  • Publication number: 20120012824
    Abstract: Disclosed is a metal complex compound represented by the following Chemical Formula 1, and an organic light emitting diode device including the same. In Chemical Formula 1, M, R1 to R8, A1 to A6, and y are the same as defined in the detailed description.
    Type: Application
    Filed: June 24, 2011
    Publication date: January 19, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hamada Yuji, Kwan-Hee Lee
  • Publication number: 20110239903
    Abstract: A method of producing a modified pigment by sulfonating a pigment and subsequently oxidizing the pigment. The modified pigment may have sulfonic acid and carboxyl surface modifying groups attached to the surface of the pigment. Charge balancing counterions such as alkali metals, alkaline earth metals and NR1R2R3H+, where R1, R2 and R3 are independently H or C1-C5 alkyl groups, may be associated with the surface modifying groups. The modified pigment is combined with water to produce a dispersion that can be used in such applications as coatings, paints, papers, adhesives, latexes, toners, textiles, fibers, plastics and inks.
    Type: Application
    Filed: March 8, 2011
    Publication date: October 6, 2011
    Inventors: Puthalath K. Sujeeth, Mark Ulrich, Gabe Srouji, John Kane, Daniel A. Ouellette
  • Publication number: 20110136812
    Abstract: The invention provides compounds of formula I: wherein A, B, W, Y, Z, and R1 have any of the meanings defined in the specification and their pharmaceutically acceptable salts. The invention also provides pharmaceutical compositions comprising a compound of formula I, processes for preparing compounds of formula I, intermediates useful for preparing compounds of formula I, and therapeutic methods for treating cancer using compounds of formula I.
    Type: Application
    Filed: August 5, 2010
    Publication date: June 9, 2011
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Edmond J. LaVoie, Alexander L. Ruchelman, Leroy F. Liu
  • Patent number: 7935434
    Abstract: An organic electroluminescent element including at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula (A),
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: May 3, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Tatsuo Tanaka, Hideo Taka
  • Patent number: 7829714
    Abstract: The present invention relates to compounds useful for measuring aromatase activity. The invention further provides methods for measuring aromatase activity and for screening test agents which modulate aromatase activity. A kit is also provided for use in such screening methods.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: November 9, 2010
    Assignee: GE Healthcare Limited
    Inventors: John Gerard Whateley, Rahman Aziz Ismail, Peter Gordon Laughton
  • Publication number: 20100230666
    Abstract: Disclased is a polymeric compound having a constitutional unit represented by formula (1a), wherein ring A and ring B independently represent an aromatic hydrocarbon ring which may have a substituent; R1 represents a group represented by formula (2); and R2 represents an aryl group or a monovalent aromatic heterocyclic group which may be substituted by an alkyl group or the like. In formula (2), Ar1 to Ar3 independently represent an arylene group or a divalent group to which two or more arylene groups are attached via a single bond; Ar4 to Ar7 independently represent an aryl group or a monovalent aromatic heterocyclic group; R6 represents a hydrogen atom, an alkyl group, an aryl group or a monovalent aromatic heterocyclic group; Ar1 to Ar7 and R6 may be substituted by an alkyl group or the like; and k and kk independently represent an integer of 0 to 3, provided that at least one of k and kk represents an integer of 1 to 3.
    Type: Application
    Filed: November 20, 2008
    Publication date: September 16, 2010
    Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED, Sumation Co., Ltd.
    Inventors: Kazuei Ohuchi, Makoto Anryu
  • Patent number: 7794536
    Abstract: A method is provided for pigment dispersion. The method includes preparing a solution in which the pigment is dissolved in an organic acid, preparing a reaction liquid capable of decreasing the solubility of the pigment in the solution, and mixing the solution and the reaction liquid in the presence of an additive represented by a General Formula (1) below, CmH2m+1(OCH2CH2)nOH??(1) wherein m is an integer higher than 14 and lower than 18, and n is an integer equal to or higher than 15 and equal to or lower than 25.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: September 14, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Teshima, Tetsuo Hino
  • Patent number: 7750159
    Abstract: It is an object of the present invention to provide a novel material that can be used for an electron injecting material. In addition, it is an object of the present invention to provide a light-emitting element that is able to broaden choices for an electrode material. An aspect of the present invention is an electron injecting material represented by a general formula (2). In the general formula (2), R6 is selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 10 carbon atoms, where the alkenyl group and the aryl group may have a substituent.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: July 6, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Ryoji Nomura, Daisuke Kumaki
  • Patent number: 7728139
    Abstract: The present application relates to compounds of formula A(D)x(E)y, (I), compounds of formula (III), compounds of formula (X), as well as processes for the preparation thereof, processes where the compounds (I) are converted to pigments of formula (II) and the use of the compounds (I).
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: June 1, 2010
    Assignee: MCA Technologies GmbH
    Inventor: Bansi Lal Kaul
  • Publication number: 20100126378
    Abstract: A sulfonated derivative of an organic pigment moiety comprising a polyetheramine, and a metal or ammonium salt. The pigment is used for coloration of printing inks and coatings. For ink-jet systems there is excellent filterability, low viscosity, and stability thereof.
    Type: Application
    Filed: April 3, 2008
    Publication date: May 27, 2010
    Inventor: Stanislav Vilner
  • Patent number: 7723521
    Abstract: A novel semiconductor device comprises an azaperylene organic semiconductor of the formula I wherein the substitutents are defined herein.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Frank Bienewald, Beat Schmidhalter, Ulrich Berens, Hans Jürg Kirner
  • Patent number: 7691197
    Abstract: The present invention relates to a method of preparing a yellow pigment comprising an asymmetric quinolonoquinolone in an amount greater than 50% by weight of the yellow pigment. Also disclosed are modified yellow pigments comprising this yellow pigment having attached at least one organic group as well as inkjet ink compositions comprising the yellow pigments or the modified yellow pigments.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: April 6, 2010
    Assignee: Cabot Corporation
    Inventor: Alexander I. Shakhnovich
  • Publication number: 20090246772
    Abstract: The present invention concerns novel dibenzo[c,h][1,5]naphthyridine of formula (I) and their use as DNA probes, as well as the methods for marking DNA using the same.
    Type: Application
    Filed: February 15, 2007
    Publication date: October 1, 2009
    Inventors: Andrei Popov, David Grierson, Jean-Claude Florent
  • Patent number: 7592414
    Abstract: The invention provides low molecular weight or polymeric organic materials in which at least one hydrogen atom is replaced by a group of the formula (A) where R is alkyl group, alkoxyalkyl group, alkoxy group, thioalkoxy group, aryl group or alkenyl group, in each of which one or more hydrogen atoms may be replaced and one or more nonadjacent carbon atoms may be replaced. Z is —O—, —S—, —CO—, —COO—, —O—CO— or a bivalent group —(CR1R2)n— in which R1 and R2 are hydrogen, alkyl, alkoxy, alkoxyalkyl or thioalkoxy group, aryl or alkenyl, in each of which one or more hydrogen atoms may be replaced and one or more nonadjacent carbon atoms may be replaced, and n is an integer from 1 to 20. X is a bivalent group —(CR1R2)n— and, with the proviso that the number of these A groups is limited by the maximum number of available substitutable hydrogen atoms.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: September 22, 2009
    Assignee: Merck Patent GmbH
    Inventors: Klaus Meerholz, Michael Bayerl, Florian Bielefeldt, Thomas Braig, Markus Gross, David Müller, Oskar Nuyken, Hubert Spreitzer
  • Patent number: 7585364
    Abstract: A quinacridone derivative according to Formula (I): wherein R1 and R2 are each independently selected from the group consisting of hydrogen, alkyl, and halogen. Also, methods for preparing non-aqueous pigment dispersions and inkjet inks including a pigment and the quinacridone derivative of Formula (I).
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: September 8, 2009
    Assignee: Agfa Graphics NV
    Inventor: Geert Deroover
  • Patent number: 7576208
    Abstract: A compound of formula 9 and uses thereof in various electronic devices and in a formulation for ink jet printing and in an organic semiconducting layer formulation.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: August 18, 2009
    Assignee: Merck Patent GmbH
    Inventors: Beverley Anne Brown, Janos Veres, Remi Manouk Anemian, Richard Williams, Simon Dominic Ogier, Stephen William Leeming
  • Publication number: 20090186200
    Abstract: 2,5-di(p-methoxyanilino)terephthalic acid crystal types I and II are made by controlling the pH during the recovery of the oxidized product of the condensation of dimethylsuccinyl succinate with p-methoxyaniline. The resulting 2,5-di(p-methoxyanilino)-terephthalic acid can be converted into 2,9-dimethoxyquinacridone or a solid solution thereof having controlled characteristics.
    Type: Application
    Filed: May 21, 2007
    Publication date: July 23, 2009
    Inventors: Brian Thompson, Daphne Rice, Tracie Tibbs, Wengan Wu, John Britanak, Edward H. Sung
  • Patent number: 7537654
    Abstract: A process for preparing coated nanoscale quinacridone pigment particles, includes: mixing a quinacridone pigment precursor or crude quinacridone pigment with a first solution including an acid to form nanoscale quinacridone pigment particles; adding the first solution and formed nanoscale quinacridone pigment particles into a second solution including deionized water to form a third solution and to precipitate the nanoscale quinacridone pigment particles; and washing the precipitated nanoscale quinacridone pigment particles in a fourth solution including a surface additive compound, whereby the surface additive compound coats the nanoscale quinacridone pigment particles; wherein the surface additive compound is a rosin compound.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: May 26, 2009
    Assignee: Xerox Corporation
    Inventors: Roger E. Gaynor, C. Geoffrey Allen
  • Patent number: 7534294
    Abstract: A process for preparing coated nanoscale quinacridone pigment particles, includes providing a first solution containing a surface additive compound in an acid; adding a quinacridone pigment precursor or crude quinacridone pigment into the first solution and causing the surface additive compound to coat formed nanoscale quinacridone pigment particles; and adding the first solution and coated nanoscale quinacridone pigment particles into a second solution containing deionized water to form a third solution and to precipitate the coated nanoscale quinacridone pigment particles; wherein the surface additive compound is a rosin compound.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: May 19, 2009
    Assignee: Xerox Corporation
    Inventors: Roger E. Gaynor, C. Geoffrey Allen
  • Publication number: 20080314285
    Abstract: A quinacridone derivative according to Formula (I): wherein R1 and R2 are each independently selected from the group consisting of hydrogen, alkyl, and halogen. Also, methods for preparing non-aqueous pigment dispersions and inkjet inks including a pigment and the quinacridone derivative of Formula (I).
    Type: Application
    Filed: November 28, 2006
    Publication date: December 25, 2008
    Applicant: AGFA GRAPHICS NV
    Inventor: Geert Deroover
  • Publication number: 20080305082
    Abstract: Disclosed are compounds having Formula I: and pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, A, and B are as defined herein, for use in methods for treating, preventing or ameliorating hyperproliferative disorders, such as cancer and other diseases and conditions. The invention also relates to pharmaceutical compositions and formulations comprising a compound having Formula I, and in combination with one or more other active agents and/or treatments.
    Type: Application
    Filed: September 14, 2005
    Publication date: December 11, 2008
    Inventors: John G. Curd, Robert L. Capizzi, John F.W. Keana
  • Patent number: 7427324
    Abstract: A nanoscale pigment particle composition includes a quinacridone pigment having at least one functional moiety, and a sterically bulky stabilizer compound having at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, so as to afford nanoscale-sized particles of the pigment.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: September 23, 2008
    Assignee: Xerox Corporation
    Inventors: Maria M. Birau, Rina Carlini, Karl W. Dawson, Sandra J. Gardner, C. Geoffrey Allen, Caroline M. Turek
  • Patent number: 7427323
    Abstract: A nanoscale pigment particle composition includes a quinacridone pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized particles.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: September 23, 2008
    Assignee: Xerox Corporation
    Inventors: Maria M. Birau, Rina Carlini, C. Geoffrey Allen, Sandra J. Gardner, Karl W. Dawson, Peter G. Odell, Paul F. Smith, Caroline M. Turek, Roger E. Gaynor, Jeffrey H. Banning
  • Publication number: 20080121873
    Abstract: An objective is to provide an organic thin film transistor material exhibiting an excellent property as a transistor together with reduced aging degradation, and also to provide an organic thin film transistor, a field-effect transistor, a switching element, an organic semiconductor material and an organic semiconductor film employing the organic thin film transistor material. Disclosed is an organic thin film transistor material possessing a compound represented by the following Formula (1). where A composed of a condensed ring formed with a 6 membered aromatic cycle or a 6 membered aromatic heterocycle represents C—R, N or P; at least one of As is N or P; R represents a hydrogen atom, a halogen atom or a substituent; and R may be bonded with other Rs with each other to form a ring.
    Type: Application
    Filed: November 17, 2005
    Publication date: May 29, 2008
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Rie Katakura, Hiroshi Kita, Katsura Hirai, Tatsuo Tanaka