Ring Containing Atom Other Than Carbon Patents (Class 106/498)
  • Patent number: 9575230
    Abstract: A color filter comprising a cured layer of a photosensitive resist composition comprising a highly reactive polyacrylate monomer and a process for the preparation thereof are provided. The color filter is especially useful for low temperature applications such as electrophoretic displays, polymer dispersed liquid crystal displays, OLED devices and the like.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 21, 2017
    Assignee: BASF SE
    Inventors: Gerardus De Keyzer, Liliana Craciun, Michael Kuepfert, Frank Oliver Heinrich Pirrung
  • Patent number: 9175168
    Abstract: A method for preparing a pigment composition for a plastics colorant is disclosed. The pigment composition is prepared by mixing a press cake of the pigment with a liquid containing a selected type of dispersant before the resulting slurry is dried. Thus prepared pigment composition has improved dispersibility in a thermoplastic or thermoset resin and greatly reduces the filter pressure rise in the molding systems for preparing masterbatches or various plastic compositions for molding, fiber, film and sheet.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: November 3, 2015
    Assignee: Sun Chemical Corporation
    Inventors: John Britanak, Mark W. Johnson, Zhijian Shen, Richard Kent Faubion
  • Patent number: 9062195
    Abstract: The present invention relates to a red photosensitive resin composition for a color filter and an application of the same. The red photosensitive resin composition includes a pigment (A), an alkali-soluble resin (B), a cationic polymerized compound (C), a cationic photo-initiator (D) and an organic solvent (E). The pigment (A) includes a first pigment (A-1), and the first pigment (A-1) is a brominated-diketo-pyrrolo-pyrrole pigment. The aforementioned red photosensitive resin composition is advantageously applied for the color filter with better brightness, contrast, temporal stability of sensitivity and development resistance.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: June 23, 2015
    Assignee: CHI MEI CORPORATION
    Inventor: Wei-Kai Ho
  • Publication number: 20150090159
    Abstract: A red leuco dye demonstrates unusually good thermal and photo stability. The red dye may be used with developers and wax carries for microencapsulation to form thermochromic pigments for use in inks, coatings and the like. This pigment is particularly desirable for use in metal-deco coatings, such as those used in aluminum cans in high beverage canning operations.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Ruizheng Wang, Medhanei Abraha, Yu Du, Ross Haugberg
  • 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
  • Publication number: 20140305341
    Abstract: A crystalline pigment or colorant composition having high color intensity and/or low sugar content, and methods and processes of preparation. The composition may comprise purified fruit and/or vegetable color juices.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Inventors: Joseph Rossi, Sundeep Kattamuri
  • 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: 20140080063
    Abstract: The present invention provides a pigment dispersion excellent in dispersibility. Furthermore, the present invention provides a color filter yellow resist composition and an ink composition, which include the pigment dispersion. A pigment dispersion containing at least a compound represented by General formula (1) and a yellow pigment represented by General formula (2) in a dispersion medium and a method for manufacturing the same are provided. Furthermore, a color filter yellow resist composition and an ink composition are provided, wherein images can be displayed with high spectral characteristics and high display contrast because the brightness is high and the hue of yellow is excellent.
    Type: Application
    Filed: April 23, 2012
    Publication date: March 20, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Taichi Shintou, Yutaka Tani, Masao Nakano, Takayuki Ujifusa, Kaoru Takahashi, Satoshi Saito, Takeshi Miyazaki, Masashi Hirose
  • Publication number: 20130330556
    Abstract: The present invention provides aniline black comprising no harmful substances such as chromium and copper in its products and having an excellent blackness and a high resistivity value, as well as provides a black resin composition, a water-based dispersion and a solvent-based dispersion which are colored with the aniline black and have an excellent dispersibility. The aniline black according to the present invention has a sulfur content of 0.2 to 6.0% by weight and comprises primary particles having an average major axis diameter of 0.05 to 0.80 ?m.
    Type: Application
    Filed: January 19, 2012
    Publication date: December 12, 2013
    Applicant: TODA KOGYO CORPORATION
    Inventors: Yusuke Shimohata, Kohei Uehara, Nobuya Shimo, Koso Aoki
  • Patent number: 8461351
    Abstract: A sterically bulky stabilizer that includes an alkylated-benzimidazolone compound, where the sterically bulky stabilizer is associated non-covalently with a benzimidazolone pigment, and the presence of the sterically bulky stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: June 11, 2013
    Assignees: Xerox Corporation, National Research Council of Canada
    Inventors: Rina Carlini, Darren Andrew Makeiff
  • Patent number: 8455654
    Abstract: A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: June 4, 2013
    Assignees: Xerox Corporation, National Research Council of Canada
    Inventors: Rina Carlini, Darren Andrew Makeiff
  • 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: 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
  • Publication number: 20130074735
    Abstract: The present invention discloses a process for producing purple-blue natural pigment containing violacein and its derivative (deoxyviolacein) using Chromobacterium sp. NIIST-CKK-01 (MTCC 5522, NCIM 5341; Genbank Accession No. FJ982784). The method comprises the steps of maintaining and growing the bacterium in a specific medium under defined conditions of pH, temperature and agitation. At the end of incubation, pigment and biomass is separated from the culture broth, pigment is recovered from the biomass through solvent extraction and finally pigment is concentrated by drying.
    Type: Application
    Filed: March 10, 2011
    Publication date: March 28, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventor: Krishnakumar Bhaskaran
  • Publication number: 20130000519
    Abstract: A crystalline pigment or colorant composition having high color intensity and/or low sugar content, and methods and processes of preparation. The composition may comprise purified fruit and/or vegetable color juices.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: E. & J. Gallo Winery
    Inventors: Joseph Rossi, Sundeep Kattamuri
  • Publication number: 20120325111
    Abstract: A resin for aqueous pigment dispersion that allows the production of an aqueous pigment dispersion for ink jet recording that contains only a few coarse particles and has excellent ejection stability, an aqueous pigment dispersion containing the resin for aqueous pigment dispersion, an ink jet recording ink, and a method for producing an aqueous pigment dispersion. A resin for aqueous pigment dispersion produced by copolymerization of a composition that contains (a) one or two or more compounds selected from the group consisting of alkenylsuccinic acids, alkenylsuccinic anhydrides, alkylsuccinic acids, and alkylsuccinic anhydrides, and (b) a styrene monomer, wherein the (a) component constitutes 5% by mass or more and the (b) component constitutes 30% by mass or more of the total amount of all the monomer component(s) and the (a) component of the composition.
    Type: Application
    Filed: April 6, 2012
    Publication date: December 27, 2012
    Applicant: DIC CORPORATION
    Inventors: Hiroyuki Buei, Yoshinosuke Shimamura, Shinichi Okada, Kenji Nasu, Takashi Yoshinari
  • Patent number: 8318052
    Abstract: The present invention relates to a pigment composition composed of compounds of the formula (I), (II) and (III) with a novel crystal modification, to their preparation and to the use of this novel product as a pigment. For many applications of organic pigments, for example the coloring of metallic lacquers or the use thereof in color filters, a very high transparency is required. To produce color filters, for example, particularly fine pigments are used, in order to substantially rule out the particle scattering which leads to a lowering of the contrast ratio. The commercially available products, however, do not always meet all requirements of the art. More particularly, there was a need for improvement with regard to the transparency and the associated fineness of the pigment crystals, and also the color purity (chroma).
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: November 27, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Matthias Ganschow
  • 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
  • Patent number: 8303857
    Abstract: The invention relates to a composite with inverse thermochromic properties, the composite changing from a colorless into a colored state with increasing temperature. The composite thereby contains a colorant, a developer and a fluxing agent and also an inorganic filler. The invention likewise relates to a composite material which contains a polymer-based matrix into which at least one composite with inverse thermochromic properties is doped. These composite materials are used in the field of sensor technology, solar technology, transport and communications technology and medical technology.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 6, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Arno Seeboth, Olaf Mühling, Ralf Ruhmann, Renate Vetter
  • Patent number: 8273269
    Abstract: A composition, for producing dispersions, thermoplastic masses and/or color filters, comprising (a) a colorant of formula (1) wherein 20-100 mol % R1 are Br and 80-100 mol % R3 are H, especially of formula (Ib) and/or (Ic); (b) from 0 to 150% by weight, based on (a), of C. I. Pigment Red 144, 188, 190, 224, 242 or 2,4,6-trimethylphenylperylene diimide; (c) from 3 to 25% by weight, based on (a), of a di- or tri-azacyclopentylmethyl-substituted colorant (formulae given); (d) from 0 to 10% by weight, preferably from 0.01 to 8% by weight, based on the sum of (a) and (b), of an additionally sulfonated colorant of the same kernels as in (c); and (e) from 0 to 30% by weight, preferably from 3 to 25% by weight, especially from 5 to 20% by weight, based on (a), of a diketopyrrolopyrrole colorant substituted by at least one chain containing a plurality of nitrogen atoms (cf. formula (V)).
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: September 25, 2012
    Assignee: BASF SE
    Inventors: Roman Lenz, Gerardus De Keyzer, Mathias Duggeli, Patrick Christopher Holzhuter
  • 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: 8252494
    Abstract: A fluorescent particle includes a fluorescent pigment, such as a trans-dicarboxylic-indenofluorenone, and at least one stabilizing wax chemically attached to the fluorescent pigment. The stabilizing wax includes an amine group at its terminal end and the fluorescent pigment includes at least one carboxylic acid group, where the amine group reacts with the carboxylic acid group to form an amide bond. A method for making fluorescent particles for use in toners by chemically attaching at least one stabilizing wax to a fluorescent pigment where the at least one stabilizing wax includes an amine group at its terminal end and the fluorescent pigment includes at least one carboxylic acid group. A toner may include a resin and the fluorescent particle.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: August 28, 2012
    Assignee: Xerox Corporation
    Inventors: Daryl W. Vanbesien, Maria M. Birau, C. Geoffrey Allen, Carol A. Jennings, Peter G. Odell
  • 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: 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: 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: 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: 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: 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: 8128848
    Abstract: The invention relates to a pigment composition that is composed of compounds of formulas (I), (II) and (III), is characterized by a average particle size d50 ranging from 10 to 60 nm, less than 5% by volume of the particles being greater than 70 nm, and can be obtained by reacting of 1 mol of a succinic acid diester with 2 mol of a mixture of nitriles A-CN and B-CN nitriles, the molar ratio of A-CN and B-CN in the nitrile mixture being in the range from 99.5:0.5 to 85.0:15.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: March 6, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Tanja Reipen, Jens Reichwagen, Matthias Ganschow, Carsten Plueg, Lars Schneider
  • 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: 8119042
    Abstract: The invention relates to cocrystals of compounds of the formulae (I), (II) and (III), obtainable by reacting 1 mol of a succinic diester with 2 mol of a mixture of nitriles A-CN and B—CN, where A-CN and B—CN are present in the nitrile mixture in a molar ratio of 90:10 to 30:70 relative to one another, and where A-CN is 2-chlorobenzonitrile and B—CN is 4-X-benzonitrile where X=chlorine, methyl or nitrile.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 21, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Matthias Ganschow, Uwe Benner, Sascha Steinhauer
  • 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: 8097668
    Abstract: A colorimetric composition is disclosed comprising a polycarbonate resin, a dye, and a thiopropionate. The composition undergoes an irreversible color shift to a darker color upon exposure to sunlight or UV radiation. Processes for producing and/or using such a colorimetric composition are also disclosed.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 17, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventor: Christopher L. Hein
  • Patent number: 8075683
    Abstract: Pigment of formula wherein R1 is CONR4R5 or C(?NR6)NR7R8, R2, R3, R4 and R5 are each independently of the others H, C1-C5alkyl, or phenyl which is unsubstituted or substituted from 1 to 5 times by C1-C5alkyl or by halogen, R6 is phenyl which is unsubstituted or substituted from 1 to 4 times by C1-C5alkyl or by halogen, R7 is H or C1-C5alkyl, and R8 is a direct bond or a carbonyl bridge to R6, which pigment consists of primary particles the average aspect ratio of which is from 4 to 1, preferably from 3.5 to 1, especially from 3 to 1, and for the ellipses equivalent to the contours of the primary particles on a two-dimensional electron microscopic image have an average numerical eccentricity ? of from 0 to 0.80, the numerical eccentricity ? being defined as (formula), wherein a is the semimajor axis and b is the semiminor axis of the equivalent ellipse. That pigment preferably has a narrow particle size distribution and is, as are analogous pigments, prepared by a novel process.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: December 13, 2011
    Assignee: BASF SE Ludwigshafen
    Inventors: Rüdiger Hainz, Jean Allaz, Didier Schroeder
  • 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
  • Patent number: 8053084
    Abstract: The present invention provides an aqueous coating composition that can form a coated film having excellent appearance, in which a change in the color of the coating composition during the storage of the coating composition is prevented or suppressed, excellent storage stability is provided, and the generation of popping is prevented or suppressed; and a method for forming a coated film. The aqueous coating composition contains (A1) a film-forming aqueous resin, (B) a dioxazine pigment, (C) a hydrophobic solvent and (D) a resin having an aromatic ring with a nitro group bonded thereto, and a method for forming a coated film using the composition.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: November 8, 2011
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshiyuki Yukawa, Takayuki Ono
  • 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: 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
  • Patent number: 8025723
    Abstract: An ink composition, such as a nonpolar liquid or phase change (solid) ink composition, that includes a non-polar carrier, and a nanoscale pigment particle composition. The nanoscale pigment particle composition includes a benzimidazolone pigment and a sterically bulky stabilizer compound, which is an alkylated-benzimidazolone compound, associated non-covalently with the benzimidazolone pigment. The presence of the associated stabilizer limits an extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: September 27, 2011
    Assignee: Xerox Corporation
    Inventors: Rina Carlini, C. Geoffrey Allen
  • 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: 8012254
    Abstract: A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: September 6, 2011
    Assignees: Xerox Corporation, National Research Council of Canada
    Inventors: Rina Carlini, Darren Andrew Makeiff
  • Patent number: 8008364
    Abstract: The present invention provides a pigment dispersion liquid including a pigment, a compound having a cyclic urea structure and having an acid group or a basic group, a dispersant, and a solvent. The pigment may be a pigment having a urea structure or an imide structure. The pigment may also be a pigment having a barbituric skeleton.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: August 30, 2011
    Assignee: Fujifilm Corporation
    Inventors: Kazuto Shimada, Yushi Kaneko, Tomotaka Tsuchimura
  • 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: 7993446
    Abstract: This invention relates to a dispersant for an organic pigment comprising a compound represented by the below-described formula (1) or (2), and also to its use. According to the present invention, it is possible to provide a dispersant or the like, which can afford a coating formulation for a color filter. The coating formulation is prevented from an increase in viscosity and a reduction in storage stability even when the concentration of a pigment is high, and can fabricate the color filter with excellent transparency and color quality.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 9, 2011
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Hiroaki Saikatsu, Hiromitsu Yanagimoto, Naoto Kamata, Michiei Nakamura