Quinacridone Pigment Or Derivative Patents (Class 106/497)
  • Patent number: 12097532
    Abstract: This invention provides a method for forming a multilayer coating film, comprising applying a base paint (X) having a solids content ratio of 30 to 62 mass % to a substrate to form a base coating film having a cured film thickness of 6 to 45 ?m; applying an effect pigment dispersion (Y) having a solids content ratio of 0.1 to 10 mass % to the base coating film to form an effect coating film having a cured film thickness of 0.1 to 5.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 24, 2024
    Assignee: KANSAI PAINT CO., LTD.
    Inventor: Kenji Sakai
  • Patent number: 11495696
    Abstract: A photoelectric conversion element according to an embodiment of the present disclosure includes: a first electrode 15a and a second electrode 18 facing each other; and a photoelectric conversion layer 17 provided between the first electrode 15a and the second electrode 18, and including a first quinacridone derivative represented by a formula (1).
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: November 8, 2022
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yuta Hasegawa, Hideaki Mogi, Takuya Ito
  • Patent number: 11389780
    Abstract: Disclosed is a method for preparing ?-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the ?-phenylethanol. The catalyst is Ni—Cu/Al2O3 nanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the ?-phenylethanol to reach 99% or more.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 19, 2022
    Assignee: WANHUA CHEMICAL GROUP CO., LTD.
    Inventors: Wei Zeng, Changsheng Chen, Yuan Li, Zaigang Yang, Hengdong Yang, Jianglin Hu, Yunhai Liu, Ke Ding, Yuanye Bao
  • Patent number: 10696856
    Abstract: An ink composition is described herein. In one example, an ink includes at least one pigment, at least one dispersant, and at least one durable polymer in a water-based dispersion medium including at least one hydrophilic solvent. The dispersant is present at from about 0.05 wt % to about 15 wt % of the ink composition. Further, the ink composition includes at least one dispersion additive.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: June 30, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Howard Doumaux, Max Yen, Thomas W. Butler
  • Patent number: 8926740
    Abstract: To provide a pigment dispersion excellent in dispersibility and spectral characteristics. The pigment dispersion at least includes: a dispersion medium; a compound represented by a general formula (1), the compound being dispersed in the dispersion medium; and a pigment having a quinacridone skeleton, the pigment being dispersed in the dispersion medium: in the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: January 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Taichi Shintou, Takayuki Ujifusa, Masao Nakano, Yutaka Tani, Kaoru Takahashi, Satoshi Saito, Takayuki Toyoda, Takeshi Miyazaki, Masashi Hirose
  • Patent number: 8871015
    Abstract: Non-aqueous pigment dispersions exhibiting improved dispersion quality and/or stability were prepared for a specific selection of naphthol AS pigments, diketopyrrolo-pyrrole pigments and quinacridone pigments, by using specific yellow monoazo dispersion synergists. The non-aqueous pigment dispersions can be advantageously used in inkjet inks inkjet printing methods.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: October 28, 2014
    Assignee: Agfa Graphics NV
    Inventor: Geert Deroover
  • Publication number: 20140238271
    Abstract: Novel, nano-structured particles are formed by introducing a selected solid of interest into a structured fluid matrix formed by a dispersion of a small molecule host vessel, such as a native or modified polysaccharide, cavitand, simple sugar, simple polyol or other similarly structured molecule known to be useful as a host vessel, in an acidic medium or other solvent, whereby the particle size of the introduced solid is reduced and or limited by incorporation into the host vessel. The simple, one-step mixing process results in stabilized colloidal dispersions of the nanoparticles useful in a wide variety of applications.
    Type: Application
    Filed: September 21, 2012
    Publication date: August 28, 2014
    Applicant: EMERALD HILTON DAVIS, LLC
    Inventors: Gregory D. Duncan, Kevin M. Henry, Joseph D. Kern
  • Patent number: 8815394
    Abstract: Encapsulated nanoscale particles of organic pigments include a polymer-based encapsulating material, and one or more nanoscale organic pigment particles encapsulated by the polymer-based encapsulating material. Such encapsulated nanoscale particles of organic pigments can be made by providing nanosized organic pigment particles comprised of surface-associated sterically bulky stabilizer compounds; providing a copolymer material comprising organic pigment-affinic functional groups and non pigment affinic monomer units; associating the nanoscale organic pigment particles with the copolymer material so as to effect a deposited layer or shell of the copolymer material around said nanoscale organic pigment particles, thereby producing an encapsulated nanoscale organic pigment particle; and optionally further reinforcing the encapsulated nanosized organic pigment particle with one or more surface treatments.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: August 26, 2014
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, Roger E. Gaynor, Paul F. Smith
  • Publication number: 20140113231
    Abstract: To provide a pigment dispersion excellent in dispersibility and spectral characteristics. The pigment dispersion at least includes: a dispersion medium; a compound represented by a general formula (1), the compound being dispersed in the dispersion medium; and a pigment having a quinacridone skeleton, the pigment being dispersed in the dispersion medium: in the general formula (1), R1 and R2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group.
    Type: Application
    Filed: July 24, 2012
    Publication date: April 24, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taichi Shintou, Takayuki Ujifusa, Masao Nakano, Yutaka Tani, Kaoru Takahashi, Satoshi Saito, Takayuki Toyoda, Takeshi Miyazaki, Masashi Hirose
  • Patent number: 8454743
    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 a compound according to Formula (I): wherein, X is a halogen atom or a tosylate group, and R1 and R2 independently represent an alkyl group; and c) hydrolyzing the R1-O bond and/or the R2-O bond. The obtained pigments can be used in non-aqueous pigment dispersions.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: June 4, 2013
    Assignee: AGFA-GEVAERT N.V
    Inventor: Geert Deroover
  • 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
  • Patent number: 8426636
    Abstract: A sterically bulky stabilizer that is associated non-covalently with a benzimidazolone pigment. The sterically bulky stabilizer compound includes an aromatic acid derivative, and the presence of the sterically bulky stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: April 23, 2013
    Assignees: Xerox Corporation, National Research Council of Canada
    Inventors: Rina Carlini, Darren Andrew Makeiff
  • Patent number: 8409343
    Abstract: An organic-inorganic hybrid pigment composition is provided comprising an organic pigment, an inorganic pigment, and a fibrous clay. The fibrous clay can be selected from palygorskite, sepiolite, or a combination thereof. The inorganic pigment is selected from rutile pigments, spinel pigments, bismuth vanadate pigments, cerium sulfide pigments, and combinations thereof. The organic pigment is selected from anthraquinone pigments, anthrathrone pigments, anthrapyrimidine pigments, azo pigments, azomethine pigments, quinacridone pigments, quinophthalone pigments, diketopyrrolopyrrol pigments, inanthrone pigments, isoindoline pigments, metal complex pigments, perinone pigments, perylene pigments, phthalocyanine pigments, pyranthrone pigments, pyrazolo-quinazolone pigments, thioindigo pigments, and combinations thereof.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: April 2, 2013
    Assignee: Mayan Pigments, Inc.
    Inventors: Lori A. Niewold, Robyn Torres, Gary E. Williams
  • Patent number: 8313576
    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: Grant
    Filed: October 15, 2010
    Date of Patent: November 20, 2012
    Assignee: AGFA-GEVAERT N.V.
    Inventor: Geert Deroover
  • Patent number: 8303851
    Abstract: Mixtures of additives in granular form comprising: one or more stabilizers for organic polymers; one or more organic or inorganic pigments; and/or one or more dyes; obtained by extrusion at a temperature capable of enabling the partial or total melting of the lowest-melting component. The above mixtures can be used in the stabilization and dyeing of organic polymers.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: November 6, 2012
    Assignee: Great Lakes Chemical (Europe) GmbH
    Inventors: Carlo Neri, Corrado Callierotti
  • Publication number: 20120260823
    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: Application
    Filed: May 16, 2012
    Publication date: October 18, 2012
    Inventors: Brian Thompson, Daphne Rice, Tracie Tibbs, Bobby Mims, Thomas Flatt, Richard Faubion, Wengan Wu
  • Patent number: 8283277
    Abstract: The present invention relates to a coating material comprising (A) at least one binder as component (A) and (B) at least one photocatalytically active particle comprising a core composed of at least one first substance having a diameter of 0.1 to 1 ?m and at least one envelope at least partly surrounding the core and composed of at least one second substance having an average layer thickness of 0.1 to 10 nm as component (B).
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: October 9, 2012
    Assignee: BASF SE
    Inventors: Alexandra Seeber, Götz-Peter Schindler, Katrin Freitag, Ekkehard Jahns, Antonino Raffaele Addamo, Frank Kleine Jäger, Dirk Klingler
  • Patent number: 8268070
    Abstract: A hybrid pigment composition and method of forming the hybrid pigment composition is provided. The hybrid pigment composition is formed from a fibrous clay and a dye or pigment. The dye or pigment includes perinones, diphenylmethanes, acridines, xanthenes, triarylmethanes, thiazines, indophenols, indulines, nigrosines, aminoazobenzenes, anilines, monoazos, benzimidazoles, diazos, phthalocyanines, quinacridones, metal complexes, azo/metal complexes, and mixtures thereof.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: September 18, 2012
    Assignee: Mayan Pigments, Inc.
    Inventors: Lori Ann Niewold, Robyn Torres, Gary E. Williams
  • Patent number: 8226761
    Abstract: A method of modifying a pigment that includes reacting a reactive compound having an X—[Y]n reactive group with a secondary compound N—S—ZM to form a substituted reactive intermediate [Y]a—X—(N—S—ZM)b. A pigment is reacted with the substituted reactive intermediate [Y]a—X—(N—S—ZM)b to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group, Y may be a halogen leaving group, N may be a basic nucleophilic group, S may be an organic group, and ZM may be an ionizable end group. Also, n is an integer between 1 and 3, b is an integer between 1 and 3, and a=n?b. When n is equal to or greater than b, and if b is 2 or 3, each N—S—ZM can be the same or different.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: July 24, 2012
    Assignee: Sensient Colors LLC
    Inventors: Puthalath K. Sujeeth, John P. Kane, Daniel A. Ouellette, Mark Ulrich, Vincent Shing, Michael Bogomolny
  • Patent number: 8221539
    Abstract: The invention relates to pigment preparations containing (i) at least one organic and/or inorganic pigment, and (ii) a dispersant of formula (I) or (II), or mixtures of dispersants of formulae (I) and (II), wherein A is C2-C4 alkylene and B is a C2-C4 alkylene different from A, D is propylene, and Q is SO3, CH2—COO, PO3M or QM.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: July 17, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle, Dietmar Beck
  • Patent number: 8221537
    Abstract: The invention relates to aqueous pigment preparations containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I) or (II), or mixtures of the dispersants of formula (I) and (II), (C) optionally wetting agents, (D) optionally other surfactants and/or dispersants, (E) optionally one or more organic solvents or one or more hydrotropic substances, (F) optionally other additives used conventionally for the production of aqueous pigment dispersions and (G) water.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: July 17, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Patent number: 8221538
    Abstract: The invention relates to an aqueous pigment preparation, containing (A) at least one organic and/or inorganic pigment, (B) a dispersing agent of the formulas (I), (II), (III) or (IV), or mixtures of the dispersing agent of the formulas (I), (II), (III) or (IV), (C) optionally a wetting agent (D) optionally further surfactants and/or dispersing agents, (E) optionally one or multiple organic solvents, or one or multiple hydrotropic substances, (F) optionally further additives common for the production of aqueous pigment dispersions, and (G) water.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: July 17, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Publication number: 20120160130
    Abstract: A tinting system for producing a defined number of shades of a paint ready for use characterized by: (a) a dye set, (b) a color identification means, and (c) plurality of metering means for accommodating a shade component, and a brightening component. Each metering means being designed to manually meter the respective dye component and to exactly reproduce the number of shades defined by the color identification means.
    Type: Application
    Filed: June 1, 2010
    Publication date: June 28, 2012
    Applicant: HEUBACH GMBH
    Inventor: Rainer Heubach
  • Patent number: 8202361
    Abstract: The invention relates to an aqueous pigment preparation containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I), (II), (III) or (IV) or mixtures of the dispersants of formula (I), (II), (III) or (IV), (C) optionally wetting agents, (C) optionally other surfactants and/other dispersants, (E) optionally at least one organic solvent or at least one hydrotropic substance, (F) optionally other additives commonly used to produce aqueous pigment dispersions.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: June 19, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • 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: 8147608
    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: Grant
    Filed: March 8, 2011
    Date of Patent: April 3, 2012
    Assignee: Sensient Colors LLC
    Inventors: Puthalath K. Sujeeth, Mark Ulrich, Gabe Srouji, John P. Kane, Daniel A. Ouellette
  • Patent number: 8123851
    Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: February 28, 2012
    Assignee: BASF SE
    Inventors: Joachim Jesse, Matthias Klueglein, Richard Van Gelder, Wolfgang Best
  • Patent number: 8118924
    Abstract: A method of modifying a pigment that includes reacting a reactive compound having an X—[Y]n reactive group with a secondary compound N—S—ZM to form a substituted reactive intermediate [Y]a—X—(N—S—ZM)b. A pigment is reacted with the substituted reactive intermediate [Y]a—X—(N—S—ZM)b to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group, Y may be a halogen leaving group, N may be a basic nucleophilic group, S may be an organic group, and ZM may be an ionizable end group. Also, n is an integer between 1 and 3, b is an integer between 1 and 3, and a=n?b. When n is equal to or greater than b, and if b is 2 or 3, each. N—S—ZM can be the same or different.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: February 21, 2012
    Assignee: Sensient Colors LLC
    Inventors: Puthalath K. Sujeeth, John P. Kane, Daniel A. Ouellette, Mark Ulrich, Vincent Shing, Michael Bogomolny
  • Patent number: 8062415
    Abstract: The invention relates to a composition for controlling the bleed fastness of organic coloring pigments in paper coatings comprising a) 1 to 30% by weight, based on the total weight of the composition, of an organic coloring pigment, b) 1 to 20% by weight, based on the total weight of the composition, of one or more binders, c) 0 to 20% by weight, based on the total weight of the composition, of starch, d) 0 to 10% by weight, based on the total weight of the composition, of an anionic direct dye, e) 0 to 10% by weight, based on the total weight of the composition one or more auxiliaries and f) water to 100%, a method of application and use of the composition.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: November 22, 2011
    Assignee: BASF SE
    Inventors: Ray Davenport, Charles Hunger, Ian William Knowles, Terry Lloyd, Barry McLow, Heinz Schneider
  • 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: 20110244385
    Abstract: The invention relates to aqueous pigment preparations containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I) or (II), or mixtures of the dispersants of formula (I) and (II), (C) optionally wetting agents, (D) optionally other surfactants and/or dispersants, (E) optionally one or more organic solvents or one or more hydrotropic substances, (F) optionally other additives used conventionally for the production of aqueous pigment dispersions and (G) water.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 6, 2011
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Publication number: 20110226160
    Abstract: A method of finishing an organic pigment by dry-comminuting said pigment in the presence of a sulfonato-functional condensation product of an arylsulfonic acid and at least one aliphatic aldehyde having 1 to 6 C atoms as crystallization modifier, dispersing the resulting mixture of pigment and crystallization modifier in mineral acid, and swelling the pigment in the presence of the crystallization modifier in mineral acid.
    Type: Application
    Filed: July 30, 2008
    Publication date: September 22, 2011
    Applicant: Basf SE
    Inventors: Joachim Jesse, Matthias Klueglein, Richard Van Gelder, Wolfgang Best
  • Patent number: 8021475
    Abstract: According to the method of producing organic pigment fine particles of the present invention, when producing organic pigment fine particles by allowing two or more solutions at least one of which is an organic pigment solution in which an organic pigment is dissolved to flow through a microchannel, the organic pigment solution flows through the microchannel in a non-laminar state. Accordingly, the contact area of solutions per unit time can be increased and the length of diffusion mixing can be shortened, and thus instantaneous mixing of solutions becomes possible. As a result, nanometer-scale monodisperse organic pigment fine particles can be produced in a stable manner.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: September 20, 2011
    Assignee: Fujifilm Corporation
    Inventors: Hideharu Nagasawa, Yuki Shimizu
  • Patent number: 8017778
    Abstract: The present invention is directed to a new 2,9-dichloroquinacridone in platelet form, a process for its preparation and its use for coloring high molecular weight organic material. The 2,9-dichloroquinacridone in platelet form has a length of 1 to 45 ?m, a width of 0.1 to 20 ?m and an average thickness of 0.01 to 5 ?m and is characterized in that the hue-value h in remission is ?31 and/or the lightness L* in transmission is ?20 and/or a decreasing b* value and an increasing a* value from an illuminating and viewing angle (aspecular angle) 45°/110° (+25°) to 45°/90° (+45°).
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 13, 2011
    Assignee: BASF SE
    Inventors: Marc Maurer, Niklaus Raetzo, Paolo Balliello
  • Patent number: 7993447
    Abstract: A pigment dispersed liquid prepared by heat-treating an aqueous pigment dispersion containing a self-dispersing pigment, but not a dispersing resin.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: August 9, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Masaaki Itano, Miharu Kanaya, Chie Saito
  • Patent number: 7964033
    Abstract: A method of modifying a pigment that includes reacting a reactive compound having an X-[Y]n reactive group with a secondary compound N-S-ZM to form a substituted reactive intermediate [Y]a-X-(N-S-ZM)b. A pigment is reacted with the substituted reactive intermediate [Y]a-X-(N-S-ZM)b to attach the substituted reactive intermediate to the surface of the pigment to form a surface modified pigment. X may be a sulfonyl, phosphoryl, or 1,3,5-triazinyl group, Y may be a halogen leaving group, N may be a basic nucleophilic group, S may be an organic group, and ZM may be an ionizable end group. Also, n is an integer between 1 and 3, b is an integer between 1 and 3, and a=n?b. When n is equal to or greater than b, and if b is 2 or 3, each N-S-ZM can be the same or different.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: June 21, 2011
    Assignee: Sensient Colors LLC
    Inventors: Puthalath K. Sujeeth, John P. Kane, Daniel A. Ouellette, Mark Ulrich, Vincent Shing, Michael Bogomolny
  • Patent number: 7927416
    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: Grant
    Filed: October 31, 2007
    Date of Patent: April 19, 2011
    Assignee: Sensient Colors Inc.
    Inventors: Puthalath K. Sujeeth, Mark Ulrich, Gabe Srouji, John P. Kane, Daniel A. Ouellette
  • Patent number: 7914615
    Abstract: A process for continuous flush of a pigment press cake involves applying a dispersant to the press cake to produce a fluidized press cake, continuously feeding the fluidized press cake into a twin screw extruder and mixing it with a neutralizing agent in the extruder, mixing the neutralized press cake with a liquid organic medium in the extruder to produce an organic flush phase and a water phase, and removing at least part of the water phase from the extruder through one or more parts of the extruder.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: March 29, 2011
    Assignee: Sun Chemical Corporation
    Inventor: George H. Robertson
  • Patent number: 7905955
    Abstract: The invention relates to aqueous pigment preparations containing (A) at least one organic and/or inorganic pigment, (B) a dispersant of formula (I) or (II), or mixtures of the dispersants of formulas (I) and (II), (C) optionally wetting agents, (D) optionally other surfactants and/or dispersants, (E) optionally one or more organic solvents or one or more hydrotropic substances, (F) optionally other additives used conventionally for the production of aqueous pigment dispersions and (G) water.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: March 15, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
  • Patent number: 7901503
    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: Grant
    Filed: April 3, 2008
    Date of Patent: March 8, 2011
    Assignee: Sun Chemical Corporation
    Inventor: Stanislav Vilner
  • Patent number: 7892344
    Abstract: The invention provides a pigment preparation comprising (a) C.I. Pigment Red 254 with an average particle size d50 of not more than 100 nm; (b) 0.1% to 30% by weight, based on the weight of the PR 254, of one or more dispersants from the group of the unlaked sulfo-containing monoazo dyes; and (c) 0.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: February 22, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Tanja Reipen, Jens Reichwagen, Lars Schneider, Carsten Plueg, David Blum
  • Patent number: 7833343
    Abstract: The invention relates to a pigment preparation containing (a) 50-99 percent by weight of at least one pigment, (b) 1 to 50 percent by weight of an additive based on polyalkylene glycols, and (c) 0 to 10 percent by weight of an auxiliary agent from among the group comprising fillers, fire retardants, preservatives, light-stability agents, pigmentary and non-pigmentary dispersing agents, surfactants, antioxidants, foam inhibitors, resins, and antistatic agents, the percentages being in relation to the total weight of the pigment preparation. The additive that is based on polyalkylene glycols corresponds to formula Z?-[-(AO—)n1—B-T-X—Y]m—Z (1), wherein AO represents a C2-C10 alkyleneoxy unit, B represents a C2-C10 alkylene radical, and T represents —NR—, X represents one of the groups (formula), and Y represents a chemical bond or —NR3—.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: November 16, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Carsten Plueg, Jesús Pitarch López
  • Patent number: 7828891
    Abstract: Pigment compositions each contain an organic pigment and at least one compound selected from compounds represented by the following formula (II), respectively: A-N?N—CH(COCH3)—CONH-E, B—N?N—CH(COCH3)—CONH-E or C—N?N—CH(COCH3)—CONH-E, wherein A represents a substituted or unsubstituted phenyl group, B represents a substituted or unsubstituted ?-naphthyl group, C represents a substituted or unsubstituted ?-anthraquinonyl group, D represents a particular substituted aromatic group, and E represents a substituted or unsubstituted phenyl group, with a proviso that the compounds each have at least one substituent represented by —COOM or —SO3M in which M represents a hydrogen atom, metal atom, ammonium group, organic amine group or quaternary ammonium group. Colored compositions making use of the pigment compositions and color filters making use of the colored compositions are also disclosed.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: November 9, 2010
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Ryo Hoshino, Hideki Ito, Kazuhiko Kaneko, Kazutaka Aoki, Shotoku Takami
  • Patent number: 7819967
    Abstract: A method of producing a dispersion of organic fine particles having a volume average particle diameter (Mv) of 10 nm to 100 nm, which has the step of: subjecting an organic fine particle dispersion liquid containing a high molecular compound to heating treatment under flowing through a channel.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: October 26, 2010
    Assignee: Fujifilm Corporation
    Inventors: Hirokazu Kyota, Hideki Maeta
  • 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: 7780780
    Abstract: According to the method of producing organic pigment fine particles of the present invention, when producing organic pigment fine particles by allowing two or more solutions at least one of which is an organic pigment solution in which an organic pigment is dissolved to flow through a microchannel, the organic pigment solution flows through the microchannel in a non-laminar state. Accordingly, the contact area of solutions per unit time can be increased and the length of diffusion mixing can be shortened, and thus instantaneous mixing of solutions becomes possible. As a result, nanometer-scale monodisperse organic pigment fine particles can be produced in a stable manner.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: August 24, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Hideharu Nagasawa, Yuki Shimizu
  • Publication number: 20100154680
    Abstract: The present invention relates to pigment granules which contain inorganic filter aids and a process for the production thereof and their use for colouring lime- and/or cement-bound building materials, asphalt, paints, finishes, paper or plastics.
    Type: Application
    Filed: August 20, 2009
    Publication date: June 24, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Holger Friedrich, Herbert Kunstmann, Krzysztof Chlopek, Jüergen Kischkewitz
  • Patent number: 7727325
    Abstract: A method for manufacturing a pigment dispersion includes mixing a solution in which a pigment is dissolved in an acid, and a reaction liquid that decreases a solubility of the pigment in the solution, in the presence of a dispersant for the pigment, and causing the pigment to precipitate. The solution and reaction liquid are mixed in the presence of the dispersant and a cyclic carbonate.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: June 1, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuo Hino, Takayuki Teshima
  • Patent number: 7722715
    Abstract: A process for the preparation of pigment compositions which give improved ink flow is provided which comprises treating the pigment, during the pigment synthesis, with a small amount of a long chain aliphatic amine. The pigment compositions obtained can be used for preparing millbase inks which due to their improved flow viscosity (rheology) at high pigmentation can be easily handled as well as flexibly formulated, e.g. a number of final printing inks for different ink applications can be manufactured from a single millbase in a very economical manner. The final inks are preferably used in packaging gravure printing processes.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Stephen Haggata, Iain Frank Fraser, Stephen John Coughlin