Pigment Containing -n=n- Group Patents (Class 106/496)
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Patent number: 7999086Abstract: The invention provides a method of conditioning azo pigments containing carboxylic ester groups, using glycol monoalkyl ethers or mixtures of glycols and glycol dialkyl ether.Type: GrantFiled: January 30, 2009Date of Patent: August 16, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Jens Paetzold, Carsten Plueg, Frank Alfter
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Patent number: 7993446Abstract: 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: GrantFiled: January 30, 2008Date of Patent: August 9, 2011Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Hiroaki Saikatsu, Hiromitsu Yanagimoto, Naoto Kamata, Michiei Nakamura
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Patent number: 7993447Abstract: A pigment dispersed liquid prepared by heat-treating an aqueous pigment dispersion containing a self-dispersing pigment, but not a dispersing resin.Type: GrantFiled: March 1, 2006Date of Patent: August 9, 2011Assignee: Seiko Epson CorporationInventors: Masaaki Itano, Miharu Kanaya, Chie Saito
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Publication number: 20110179974Abstract: An object of the invention is to provide an azo pigment having extremely good dispersibility and dispersion stability and having excellent hue and tinctorial strength and, preferably, having a long axis observed with a transmission microscope of from 0.01 ?m to 30 ?M. An azo pigment which is represented by the following formula (1) and having characteristic peaks at Bragg angles) (2?±0.2°) of (i) 7.6° and 25.6°, (ii) 7.0°, 26.4°, and 27.3°, or (iii) 6.4°, 26.4°, and 27.Type: ApplicationFiled: September 28, 2009Publication date: July 28, 2011Applicant: FUJIFILM CORPORATIONInventors: Keiichi Tateishi, Shinya Hayashi
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Patent number: 7985290Abstract: 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 derivative of an aromatic acid, 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: GrantFiled: August 10, 2010Date of Patent: July 26, 2011Assignee: Xerox CorporationInventors: Rina Carlini, C. Geoffrey Allen
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Patent number: 7982019Abstract: The present invention provides a method for producing dry organic pigment, comprising the successive steps of, in this order: a first step wherein a wet organic pigment is obtained by drying an organic pigment presscake at 70 to 150° C. to a moisture content of 5 to 30%, and a second step wherein a dry organic pigment is obtained by pulverizing and drying the wet organic pigment at a temperature that is higher than the temperature employed in the first step but lower than the decomposition temperature of the organic pigment. The method for producing dry organic pigment enables the dry organic pigment to be obtained with superior productivity while consuming less energy than conventional methods.Type: GrantFiled: October 16, 2007Date of Patent: July 19, 2011Assignee: DIC CorporationInventors: Akihiro Ogata, Nagatoshi Kobayashi
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Patent number: 7964033Abstract: 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: GrantFiled: August 22, 2008Date of Patent: June 21, 2011Assignee: Sensient Colors LLCInventors: Puthalath K. Sujeeth, John P. Kane, Daniel A. Ouellette, Mark Ulrich, Vincent Shing, Michael Bogomolny
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Patent number: 7942962Abstract: Disclosed is a monoazo metal complex represented by the formula (1) wherein R1 represents a hydrogen atom, a C1-C4 alkyl group, a C1-C4 alkoxy group, a chlorine atom, a bromine atom or a nitro group; M represents a hydrogen atom, a sodium, a potassium, a magnesium, a calcium, a barium or an aluminum; Mn+ represents a n-valent cation; Metal represents Ni, Fe, Cu, Co or Al; m represents an integer of 1 or 2; and n represents an integer of 1, 2 or 3.Type: GrantFiled: April 22, 2008Date of Patent: May 17, 2011Assignee: Nippon Kayaku Kabushiki KaishaInventors: Shinjirou Takahashi, Akio Kuwahara
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Patent number: 7938903Abstract: 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 an alkylated-benzimidazolone compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.Type: GrantFiled: October 19, 2009Date of Patent: May 10, 2011Assignees: Xerox Corporation, National Research Council of CanadaInventors: Rina Carlini, Darren Andrew Makeiff
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Patent number: 7927416Abstract: 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: GrantFiled: October 31, 2007Date of Patent: April 19, 2011Assignee: Sensient Colors Inc.Inventors: Puthalath K. Sujeeth, Mark Ulrich, Gabe Srouji, John P. Kane, Daniel A. Ouellette
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Patent number: 7923540Abstract: The present invention is directed to 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxo-propyl]azo]-benzoic acid (C.I. Pigment Yellow 151): (I), characterized by a ?E* (black/white) in masstone below 22.0±0.7, a process for its preparation and its use for pigmenting macromolecular organic materials of natural or synthetic origin. The pigment has high opacity and high color strength.Type: GrantFiled: January 8, 2007Date of Patent: April 12, 2011Assignee: BASF SEInventors: Hans Reichert, Max Hügin, Ulrich Veith, Sibylle Soder, Thomas Eichenberger
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Publication number: 20110061564Abstract: A diarylide yellow pigment formed by a coupling reaction of a benzidine and a mixture comprising 4-chloro-2,5-dimethoxy-acetoacetanilide and 2,4-dimethyl-acetoacetanilide. The diarylide yellow pigment has a desirable reddish shade than C.I. Pigment Yellow 83, exists in a solid solution, and contains fewer aromatic amine impurities.Type: ApplicationFiled: April 17, 2009Publication date: March 17, 2011Inventors: Russell Schwartz, Ulrik Cassias, Palle Chris Nielsen
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Patent number: 7905954Abstract: 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 an alkylated derivative of an aromatic acid; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.Type: GrantFiled: October 19, 2009Date of Patent: March 15, 2011Assignees: Xerox Corporation, National Research Council of CanadaInventors: Rina Carlini, Darren Andrew Makeiff
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Patent number: 7905955Abstract: 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: GrantFiled: April 29, 2008Date of Patent: March 15, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Bjoern Fechner, Carsten Schaefer, Alexander Woerndle
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Patent number: 7901503Abstract: 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: GrantFiled: April 3, 2008Date of Patent: March 8, 2011Assignee: Sun Chemical CorporationInventor: Stanislav Vilner
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Patent number: 7892344Abstract: 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: GrantFiled: July 2, 2009Date of Patent: February 22, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Tanja Reipen, Jens Reichwagen, Lars Schneider, Carsten Plueg, David Blum
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Patent number: 7883574Abstract: Nanoscale particles of benzimidazolone pigments are made by providing one or more organic pigment precursor(s) to a benzimidazolone pigment, providing a solution or suspension of a sterically bulky stabilizer compound that associates non-covalently with a benzimidazolone moiety on one of the pigment precursors, wherein the sterically bulky stabilizer compound is selected from the group consisting of substituted pyridine derivatives, alkylated benzimidazolone compounds, alkylated derivatives of aromatic acids, and mixtures thereof, and carrying out a coupling reaction to form a benzimidazolone pigment composition, whereby one or more functional moieties on the benzimidazolone pigment is non-covalently associated with the sterically bulky stabilizer, so as to limit an extent of particle growth and aggregation and results in nanoscale pigment particles.Type: GrantFiled: July 24, 2009Date of Patent: February 8, 2011Assignee: Xerox CorporationInventors: Rina Carlini, Darren Andrew Makeiff
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Publication number: 20110011307Abstract: The present invention relates to a method of preparing a modified colored pigment comprising a pigment having attached at least one organic group. The method comprises the step of combining, in any order, a) a solution of an organic colorant in a solvent, b) at least one aromatic amine comprising the organic group, c) at least one diazotizing agent, d) an aqueous medium, e) optionally at least one acid, and f), optionally at least one second solvent, to form the modified colored pigment.Type: ApplicationFiled: July 21, 2010Publication date: January 20, 2011Inventors: Alexander I. Shakhnovich, Yuan Yu, Friedrich K. von Gottberg
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Patent number: 7857901Abstract: 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 a substituted pyridine derivative, 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: GrantFiled: June 21, 2010Date of Patent: December 28, 2010Assignee: Xerox CorporationInventors: Rina Carlini, C. Geoffrey Allen
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Patent number: 7855041Abstract: The invention relates to a pigment preparation which contains the monoazo pigment of the formula (I) and 0.1% to 40%, preferably 0.5% to 25%, in particular 1.0% to 17.5% of a pigment dispersant, in relation to the weight of the monoazo pigment of the formula (I), which is composed of disazo compounds at least 30% of the diazo compounds forming an asymmetric disazo compound of the formula (II) Y-X-A-X-Z??(II), in which A is biphenylene, 3,3?-dichlorobiphenylene, 3,3?-dimethoxybiphenylene, 3,3?-dimethylbiphenylene or 2,2?-dichloro-3,3?-dimethoxybiphenylene; X is a group —NH—CO—CH(COCH3)—N?N—, —N?N—CH(COCH3)—CO—NH—or —N?N—; Y is substituted or unsubstituted phenyl, pyrazolin-5-on-4-yl, 1-phenyl-Pyrazolin -5-on-4-Lyl, 2-hydroxynaphth-1-yl or 2-hydroxy-3-(phenylamino-carbonyl) naphth-1-yl, the substituents being C1-C4 alkyl, C1-C4 alkoxy, nitro, halogen or C1-C4 alkoxycarbonyl, and have the meaning of Y, and the compounds being further substituted with a sulfonic acid group present as an ammonium salt.Type: GrantFiled: April 20, 2006Date of Patent: December 21, 2010Assignee: Clariant Produkte (Deutschland) GmbHInventors: Joachim Weber, Patrick Hoetzel, Karl-Heinz Schweikart, Frank Alfter
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Patent number: 7846992Abstract: A pigment dispersion includes a color pigment and a polymeric dispersant having at least one pending chromophore group covalently bound to the polymeric backbone of the polymeric dispersant through a linking group. The at least one pending chromophore group has a molecular weight which is smaller than 85% of the molecular weight of the color pigment; the at least one pending chromophore group occurs as a side group on the polymeric backbone and not as a group in the polymeric backbone itself or occurring solely as an end group of the polymeric backbone; the linking group consists of all the atoms between the polymeric backbone and the first atom of the aromatic group by which the pending chromophore group is linked to the polymeric backbone; and the at least one pending chromophore group has a similarity coefficient SIM of at least 0.75.Type: GrantFiled: June 23, 2006Date of Patent: December 7, 2010Assignee: Agfa Graphics NVInventors: Geert Deroover, Johan Loccufier, Lambertus Groenendaal, Wojciech Jaunky
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Patent number: 7833343Abstract: 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: GrantFiled: September 28, 2007Date of Patent: November 16, 2010Assignee: Clariant Finance (BVI) LimitedInventors: Carsten Plueg, Jesús Pitarch López
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Pigment compositions, colored compositions making use of the pigment compositions, and color filters
Patent number: 7828891Abstract: 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: GrantFiled: November 18, 2009Date of Patent: November 9, 2010Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Ryo Hoshino, Hideki Ito, Kazuhiko Kaneko, Kazutaka Aoki, Shotoku Takami -
Patent number: 7824488Abstract: The invention relates to a pigment composition based on P.Y. 191 of the formula (1) containing 0.05 to 30 mol %, based on the sum of P.Y. 191 and a further yellow colorant, of at least one further yellow colorant of the formula (2) and/or of C.I. Pigment Yellow 100 in which R1, R2, R3 and R4 are each independently hydrogen, halogen, —CH3, —NO2, or NH—R6 where R6 is C1-C4-alkyl; R5 is methyl or carboxyl, and where the compound of the formula (2) is not C.I. Pigment Yellow 191.Type: GrantFiled: February 12, 2008Date of Patent: November 2, 2010Assignee: Clariant Finance (BVI) LimitedInventors: Till Borchert, Martin Ulrich Schmidt, Arpad Acs, Ruediger Jung
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Patent number: 7819969Abstract: A Naphthol AS colorant according to Formula (I): wherein R1, R2, R3, R4 and R5 are each independently selected from the group consisting of hydrogen, methyl, ethyl, halogen, methoxy, ethoxy, —CONH-phenyl and —NO2, wherein the group Q is a group including two carboxyl groups or salts thereof. The Naphthol AS colorant may also be used for making colored layers and non-aqueous pigment dispersions.Type: GrantFiled: November 28, 2006Date of Patent: October 26, 2010Assignee: Agfa Graphics NVInventor: Geert Deroover
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Publication number: 20100258036Abstract: A monoazo pigment is represented by the general formula (1), a tautomer of the monoazopigment, and a salt or a hydrate thereof: wherein R1, P1, and Q1 each independently represents a hydrogen or a substituent, G represents the non-metallic atoms necessary to complete a 5- to 6-membered heterocyclic group, W represents a substituent capable of binding to the heterocyclic group constituted by G, t represents an integer of from 0 to 5, Het-1 represents a group selected from the aromatic heterocyclic groups represented by the general formula (2): wherein X, Y, Z, W0, W1, W2, W3, and W4 each independently represents a hydrogen or a substituent, and * shows the point of attachment to the azo linkage in the general formula (1).Type: ApplicationFiled: September 3, 2008Publication date: October 14, 2010Applicant: FUJIFILM CORPORATIONInventors: Keiichi Tateishi, Shinya Hayashi, Yoshiaki Nagata, Tomoaki Nakamura
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Patent number: 7811376Abstract: An aqueous pigment preparation containing: (A) at least one organic and/or inorganic pigment; (B) at least one water-soluble or water-dispersible non-ionic oligoester or polyester, which is obtained by the polycondensation of dicarboxylic acid and glycol components, said oligoester or polyester comprising I) one or more aromatic dicarboxylic acids, their esters or anhydrides, II) C2-C8 alkenediols, III) poly (C1-C4-alkene)glycols and/or methylpoly(C2-C4 alkene)glycols, IV) optional water-soluble addition products of alkene oxide on C1-C24 alcohols, C6-C18 alkylphenols or on C8-C24 alkylamines and V) one or more optional polyols; (C) optional additional dispersants and surfactants that are conventionally used to produce aqueous pigment dispersions; (D) optional additional additives that are conventionally used to produce aqueous pigment dispersions; and (E) water.Type: GrantFiled: September 29, 2005Date of Patent: October 12, 2010Assignee: Clariant Produkte (Deutschland) GmbHInventors: Bjoern Fechner, Frank-Peter Lang, Alexander Lerch, Uwe Bechtold, Hendrik Ahrens
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Patent number: 7780780Abstract: 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: GrantFiled: June 9, 2006Date of Patent: August 24, 2010Assignee: FUJIFILM CorporationInventors: Hideharu Nagasawa, Yuki Shimizu
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Patent number: 7780775Abstract: The invention pertains to a novel, simpler dry-milling method for comminuting crude pigments (especially crude phthalocyanines) for use in offset inks, wherein a high amount of resin is used, at least part of which is a low molecular phenol-modified rosin, an esterified rosin or a hydrocarbon resin of similar properties, preferably together with an antioxidant, and dry-milling is performed at relatively low temperature. The invention also pertains to the thus obtained, new compositions, which are extraordinarily easily dispersible in hydrocarbon solvents, and their use for the preparation of inks or ink concentrates. Pigment dispersions obtained from the preferred compositions are also claimed.Type: GrantFiled: April 24, 2006Date of Patent: August 24, 2010Assignee: Ciba Specialty Chemicals Corp.Inventors: Thomas Healy, David Cameron
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Publication number: 20100154680Abstract: 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: ApplicationFiled: August 20, 2009Publication date: June 24, 2010Applicant: LANXESS DEUTSCHLAND GMBHInventors: Holger Friedrich, Herbert Kunstmann, Krzysztof Chlopek, Jüergen Kischkewitz
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Patent number: 7722716Abstract: A non-aqueous pigment dispersion includes a Naphthol AS pigment or a mixed crystal thereof and a Naphthol AS colorant according to Formula (I): wherein R1, R2, R3, R4, and R5 are each independently selected from the group consisting of hydrogen, methyl, ethyl, halogen, methoxy, ethoxy, —CONH-phenyl, and —NO2; wherein the group Q is phenyl substituted by either one sulphonic acid group, two carboxylic acid groups, or salts thereof. Also, non-aqueous inkjet inks and use of the non-aqueous pigment dispersions for making colored layers.Type: GrantFiled: November 28, 2006Date of Patent: May 25, 2010Assignee: Agfa Graphics NVInventor: Geert Deroover
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Patent number: 7722715Abstract: 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: GrantFiled: March 30, 2005Date of Patent: May 25, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Stephen Haggata, Iain Frank Fraser, Stephen John Coughlin
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Patent number: 7709614Abstract: Novel crystalline modifications (eta, theta, iota, kappa) of the C.I. Pigment Yellow 181, obtained when one of the known phases or another inventive phase of said pigment is treated with specific solvents. The novel crystalline phases are characterized by yellow shades and excellent coloring properties.Type: GrantFiled: June 15, 2005Date of Patent: May 4, 2010Assignee: Clariant Produkte (Deutschland) GmbHInventors: Martin U. Schmidt, Gerald Mehltretter
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Patent number: 7708824Abstract: In C. I. pigment red 57:1 of the present invention, the total content of 3-hydroxy-2-naphthoic acid and a metal salt thereof, which is measured by quantitative analysis using liquid chromatography, is 2,500 ppm or less as converted into the 3-hydroxy-2-naphthoic acid.Type: GrantFiled: June 4, 2007Date of Patent: May 4, 2010Assignee: DIC CorporationInventors: Akihiro Ogata, Nagatoshi Kobayashi, Keiko Otsubo
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Patent number: 7704312Abstract: A non-aqueous pigment dispersion includes a color pigment, a polymeric dispersant, and a dispersion synergist in a dispersion medium wherein the dispersion synergist is represented by Formula (I): wherein AR1 and AR2 represent a substituted or unsubstituted aromatic group, and R represents a substituted or unsubstituted aliphatic group, with the proviso that one of R, AR1, and AR2 contains at least one carboxylate anion and that the molecular weight of the anionic part of the dispersion synergist is smaller than 98% of the molecular weight of the color pigment. Also, methods of preparing the non-aqueous pigment dispersions.Type: GrantFiled: November 28, 2006Date of Patent: April 27, 2010Assignee: Agfa Graphics NVInventors: Geert Deroover, Nicolas Point
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Patent number: 7682443Abstract: An organic-pigment aqueous dispersion, containing a pigment at a concentration of 6 to 30 mass %, and having a haze of 0.3 to 10%, as determined by enclosing the dispersion in a transparent glass cell of optical distance 0.2 mm and analyzing with integrating-sphere photoelectric photometry; and a colored coating composition using the same.Type: GrantFiled: April 11, 2008Date of Patent: March 23, 2010Assignee: Fujifilm CorporationInventors: Tadahisa Sato, Hideki Maeta, Jun Tanabe, Hirokazu Kyota
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Patent number: 7682444Abstract: Process for preparing pigments of the formula (I) or tautomeric structures thereof and their hydrates, containing melamine as guest, characterized in that a mixture of the azobarbituric mono-cation salt (II) and the azobarbituric di-cation salt (III) is reacted with a nickel compound and melamine, in which cation1, cation2 and cation3 independently of one another are any desired univalent cations or the fraction of any desired multivalent cation that corresponds to a positive charge of one.Type: GrantFiled: July 3, 2007Date of Patent: March 23, 2010Assignee: LANXESS Deutschland GmbHInventors: Ulrich Feldhues, Frank Linke, Ronald Göbel
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Publication number: 20100068642Abstract: 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: ApplicationFiled: September 28, 2007Publication date: March 18, 2010Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Carsten Plueg, Jesus Pitarch Lopez
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Publication number: 20100050904Abstract: The invention relates to a methods finishing an organic pigment by dissolving or dispersing the pigment in a mineral acid and crystallizing the pigment from the solution or dispersion by mixing with an aqueous diluent in the presence of a crystallization modifier constituted by a sulfonate-functional condensation product of a naphthalenesulfonic acid and at least one aliphatic aldehyde having 1 to 6 carbon atoms, and then isolating the pigment as a solid, wherein the crystallization modifier is present in the aqueous diluent.Type: ApplicationFiled: April 10, 2008Publication date: March 4, 2010Applicant: BASF SEInventors: Joachim Jesse, Benno Sens, Richard van Gelder, Matthias Klueglein, Wolfgang Best, Rainer Henning
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Publication number: 20100035172Abstract: 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 an alkylated-benzimidazolone compound; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.Type: ApplicationFiled: October 19, 2009Publication date: February 11, 2010Applicants: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADAInventors: Rina CARLINI, Darren Andrew MAKEIFF
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Patent number: 7658793Abstract: The invention relates to a pigment preparation based on at least one inorganic pigment and at least one organic pigment, and to a method for producing one such pigment preparation. Said pigment preparation contains particles wherein fine organic pigment particles are combined with inorganic pigment particles, said particles also being provided with an organic macromolecular coating. The inventive pigment preparation is produced by wet-grinding the inorganic and organic pigments, optionally adding other constituents, in the presence of a surface-active substance in the form of a macromolecular organic compound.Type: GrantFiled: March 5, 2004Date of Patent: February 9, 2010Assignee: Heubach GmbHInventors: Rainer Heubach, Yvonne Brussaard, Hugo Brussaard
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Patent number: 7659340Abstract: A universal colorant composition for both solvent- and water-based paints and coatings includes a colorant component, such as pigment, dye, colorant, tinting agent and/or metal effect agent; a surfactant package including at least one alkyd-compatible; surfactant and at least one latex-compatible surfactant; and a carrier. When the surfactant package is added to a base paint it provides a mixture having a drop in viscosity of less than about 50%.Type: GrantFiled: March 17, 2006Date of Patent: February 9, 2010Assignee: Valspar Sourcing, Inc.Inventors: Mark Randall Coward, Stephen M. Korenkiewicz, David R. Wallace
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Pigment compositions, colored compositions making use of the pigment compositions, and color filters
Patent number: 7655087Abstract: Pigment compositions each contain an organic pigment and at least one compound selected from compounds represented by the following formulas (I) or (II), respectively: A-N?N-D, B—N?N-D or C—N?N-D??Formula (I) A-N?N—CH(COCH3)—CONH-E, B—N?N—CH(COCH3)—CONH-E or C—N?N—CH(COCH3)—CONH-E??Formula (II) 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: GrantFiled: October 19, 2007Date of Patent: February 2, 2010Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Ryo Hoshino, Hideki Ito, Kazuhiko Kaneko, Kazutaka Aoki, Shotoku Takami -
Patent number: 7649026Abstract: Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, and a nanoscale pigment particle composition including an organic monoazo laked pigment including at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, wherein the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.Type: GrantFiled: November 1, 2007Date of Patent: January 19, 2010Assignee: Xerox CorporationInventors: C. Geoffrey Allen, Rina Carlini, Sandra J. Gardner
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Patent number: 7645336Abstract: The invention relates to an azo pigment preparation which is characterized by a content in 4,4?-diaminodicyclohexylmethane, the percentage of the trans,trans-isomer being at least 25%, based on the total amount of 4,4?-diaminodicyclohexylmethane. The azo pigment preparation according to the invention is especially suitable for producing gravure inks having improved optical density, higher luster and no ink show-through in the gravure printing of illustrations.Type: GrantFiled: November 16, 2006Date of Patent: January 12, 2010Assignee: Clariant Produkte (Deutschland) GmbHInventor: Juergen Gerold
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Patent number: 7637994Abstract: A color pigment containing, based upon the total weight of the pigment, at least 70.0 weight % of a first compound COP according to Formula (I): wherein one of R1 and R2 is hydrogen and the other one of R1 and R2 represents —COOR4; R4 and R5 represent methyl; R3 is selected from the group consisting of: with C* representing the point of attachment of R3 to the nitrogen in Formula (I); and having a pigment surface including between 2.0 and 30.0 weight %, based upon the total weight of the pigment of a second compound according to Formula (I), wherein —R1, R2?, R3, R4 and R5 have the same meaning as above with the exception that at least one of R4 and R5 represents hydrogen. Also, methods of preparation of the pigment and non-aqueous pigment dispersions.Type: GrantFiled: November 28, 2006Date of Patent: December 29, 2009Assignee: Agfa Graphics NVInventors: Geert Deroover, Jan Gilleir
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Publication number: 20090305156Abstract: The invention relates to a pigment preparation which contains the mono-azo pigment of formula (1) and 0.1 to 40% by weight, preferably 0.5 to 25% by weight, in particular 1.0 to 17.Type: ApplicationFiled: April 20, 2006Publication date: December 10, 2009Inventors: Joachim Weber, Patrick Hoetzel, Karl-Heinz Schweikart, Frank Alfter
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Patent number: 7578880Abstract: A method of producing fine particles of metal complex pigment, containing the step of reacting a solution of an alkali metal salt of a ligand that constitutes the metal complex with a solution of salts of a metal that constitutes the metal complex, in the course of a laminar flow in a channel; and a method of producing fine particles of metal complex pigment, containing the step of bringing a solution of an alkali metal salt of a ligand that constitutes the metal complex and a solution of salts of a metal that constitutes the metal complex into contact with each other in a channel having an equivalent diameter of 1 mm or less to form a liquid flow.Type: GrantFiled: September 5, 2006Date of Patent: August 25, 2009Assignee: FUJIFILM CORPORATIONInventors: Tadahisa Sato, Jun Tanabe, Hideki Maeta
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Patent number: 7563318Abstract: A process for preparing nanoscale azo pigment particles includes providing an organic pigment precursor that contains at least one functional moiety, providing a sterically bulky stabilizer compound that contains at least one functional group, and carrying out a chemical reaction to form a pigment composition in a microreactor or micromixer, whereby the functional moiety found on the pigment precursor is incorporated within the pigment and non-covalently associated with the functional group of the stabilizer, so as to allow the formation of nanoscale-sized pigment particles and the production of such in a microreactor under laminar or turbulent flow conditions without clogging.Type: GrantFiled: July 2, 2008Date of Patent: July 21, 2009Assignee: Xerox CorporationInventors: Santiago Faucher, Rina Carlini, Emily L. Moore, Christine M. Thompson, Sandra J. Gardner, Paul J. Gerroir, C. Geoffrey Allen
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Patent number: 7553365Abstract: An aqueous pigment dispersion is produced by ultrafinely dispersing a pigment dispersion mixture, which has been obtained by mixing at least a pigment and a dispersant in an aqueous medium, with microbeads having diameters of not smaller than 0.02 mm but smaller than 0.2 mm. A color composition for a color filter is produced by dispersing a mixture of a pigment, a dispersant, a resin varnish and a solvent with the microbeads in a mill.Type: GrantFiled: January 25, 2005Date of Patent: June 30, 2009Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Shigeru Sakamoto, Yoshimasa Tsuchiya, Masanori Takakamo, Tohru Hosoda, Akio Yoshida, Michiei Nakamura, Naoyuki Sakai, Dai Watanabe, Hideyuki Koiso, Kenji Ogawa