The Nitrogen Is Part Of An Acyclic Azo Group Patents (Class 106/31.8)
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Patent number: 10538668Abstract: The present invention relates to [1] a process for producing a pigment composition, including the step of subjecting a raw material pigment composition containing C.I. Pigment Yellow 74, a specific by-product and water to heat treatment at a temperature of from 160 to 210° C.; and [2] a method of reducing a content of a by-product in a raw material pigment composition containing C.I. Pigment Yellow 74, the specific by-product and water, said method including the step of subjecting the raw material pigment composition to heat treatment at a temperature of from 160 to 210° C.Type: GrantFiled: October 4, 2016Date of Patent: January 21, 2020Assignee: KAO CORPORATIONInventors: Shuichi Abe, Tsuyoshi Oda, Toshiya Iwasaki
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Patent number: 10208215Abstract: The invention relates to an ink composition, the ink composition including a pinning agent. The pinning agent provides the ink composition with thermogelling behavior. The invention further relates to a pinning agent suitable for an ink composition. The invention further relates to a method for applying an image to a receiving medium using an ink composition including a pinning agent.Type: GrantFiled: July 22, 2016Date of Patent: February 19, 2019Assignee: OCE-TECHNOLOGIES B.V.Inventors: Peter R. Markies, Peter O. Colin, Jozef P. Moonen, Ke Peng
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Patent number: 9795929Abstract: In one embodiment described herein, a bodily fluid separation material is provided comprising a formed component capture region and a bodily fluid pass-through region. The pass-through region has structures with a reduced liquid leaching quality relative to than the capture region, wherein during separation material use, bodily fluid enters the capture region prior to entering the pass-through region. Optionally, a bodily fluid pass-through region has a reduced amount of liquid leaching material relative to than the capture region.Type: GrantFiled: March 15, 2014Date of Patent: October 24, 2017Assignee: Theranos, Inc.Inventors: Samartha Anekal, Deborah Sloan
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Publication number: 20150079358Abstract: An ink for inkjet recording includes a colorant; an organic solvent; a surfactant; and water. The organic solvent includes a polyol having a solubility parameter (SP value) of from 11.8 to 14.0 (components A) or an oxetane compound having the following formula (I) (components B): wherein R? represents an alkyl group having 1 to 2 carbon atoms. The content of at least one member of the components A or the components B is from 30 to 70% by weight per 100% by weight of the ink. The colorant is a hydrodispersible pigment having a functional group selected from the group consisting of —COOM, —SO3M, —PO3HM, —PO3M2, —CONM2, —SO3NM2, —NH—C6H4—COOM, —NH—C6H4—SO3M, —NH—C6H4—PO3HM, —NH—C6H4—PO3M2, —NH—C6H4—CONM2 and —NH—C6H4—SO3NM2, wherein M is a quaternary ammonium ion.Type: ApplicationFiled: September 5, 2014Publication date: March 19, 2015Inventors: Hiroshi GOTOU, Hidetoshi FUJII
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Publication number: 20150030818Abstract: Inkjet ink contains water, hydrosoluble organic materials; and a colorant, wherein the hydrosoluble organic materials account for 30% by weight to 50% by weight of the inkjet ink, wherein the hydrosoluble organic materials contain 3-methoxy-1-butanol, herein the hydrosoluble organic materials contain at least one of 1,3-butane diol, 3-methyl-1,3-butane diol, 1,2-butane diol, 2,3-butane diol, 1,2-pentane diol, 3-methyl-3-hydroxymethyl oxetane, 1,2-propane diol, or 1,3-propane diol in an amount of 1% of the inkjet ink.Type: ApplicationFiled: July 10, 2014Publication date: January 29, 2015Applicant: RICOH COMPANY, LTD.Inventors: Hidetoshi Fujii, Hiroshi Gotou
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Publication number: 20140287151Abstract: An ink formulation comprises a binder and at least one marking component, which comprises at least one metal oxides or oxyanion and at least one oxidizing/reducing agent, which absorbs laser irradiation between wavelengths of 780-10,600 nm, thereby causes the formulation to change color.Type: ApplicationFiled: March 31, 2014Publication date: September 25, 2014Inventor: Jagdip Thaker
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Publication number: 20140198151Abstract: An ink containing water, a water-soluble organic solvent and an organic pigment, wherein a primary particle of the organic pigment has a ratio (minor axis b)/(major axis a) of 0.70 or more and a particle diameter of 35 nm or less, the ink contains a water-soluble organic solvent with a dielectric constant of 25.0 or less in an amount of 0.5% by mass or more based on the total mass of the ink, and a dielectric constant ?mix of the ink as calculated according to the following equation (1) is 66-72: ?mix=?n?nrn/?nrn??Equation (1): wherein n means a kind of water or the water-soluble organic solvent, ?n is a dielectric constant of water or the water-soluble organic solvent represented by n, and rn is a content of water or the water-soluble organic solvent represented by n based on the total mass of the ink.Type: ApplicationFiled: February 27, 2013Publication date: July 17, 2014Inventors: Masashi Yamamoto, Eiichi Nakata, Shuichi Okazaki, Satoshi Takebayashi
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Patent number: 8585815Abstract: A non-aqueous inkjet ink comprises silica and Brilliant Carmine 6B. A peak area obtained at the time of measurement of an organic acid quantity of a water extract of Brilliant Carmine 6B by use of a capillary electrophoresis apparatus is selected within the range of 50 to 300 mABU*sec.Type: GrantFiled: August 16, 2011Date of Patent: November 19, 2013Assignee: Riso Kagaku CorporationInventors: Masakatsu Arai, Syotaro Kon, Hiroshi Hayashi, Kenji Shimomura, Teruaki Okawa
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Publication number: 20130201265Abstract: The ink composition of the invention is applied to a region to which a color ink composition has been applied. The ink composition contains a weather resistance enhancer, is substantially free from a colorant, and is applied to a recording medium to form a coating film exhibiting an integrated value of light transmittance of not more than 2000 for each nanometer at wavelengths of 320 nm to 360 nm and an integrated value of light transmittance of not less than 36000 for each nanometer at wavelengths of 380 nm to 780 nm.Type: ApplicationFiled: February 6, 2013Publication date: August 8, 2013Applicant: SEIKO EPSON CORPORATIONInventor: Seiko Epson Corporation
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Patent number: 8470054Abstract: Provided are an azo compound represented by the following formula (1), a tautomer thereof, and a salt or hydrate of the azo compound or the tautomer: wherein in the formula (1), A represents a heterocyclic group; G represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; R1 and R2 each independently represent a group represented by the following formula (2) or (3):Type: GrantFiled: August 9, 2012Date of Patent: June 25, 2013Assignee: FUJIFILM CorporationInventors: Masahiro Higashi, Yoshihiro Jimbo
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Publication number: 20130155486Abstract: Disclosed is an ink composition used in an electrowetting display device and an electrowetting display device employing the same. The ink composition used in the electrowetting display device includes a non-polar solvent and a modified hydrophobic pigment, wherein the modified hydrophobic pigment has a structure represented by Formula (I), of P-Gn wherein P is a pigment moiety, n is 1-4 and G is wherein R1 is a straight chain or a branched C4-20 alkyl group, or C5-20 cycloalkyl group.Type: ApplicationFiled: July 23, 2012Publication date: June 20, 2013Inventors: Ming-Tzung WU, Te-Yi Chang, Chin-Hua Chang, Wen-Jiunn Chen, Yu-Chin Lin, Ching-Mao Wu
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Publication number: 20130149505Abstract: An ink set is provided which includes a first ink containing a first pigment, water, and a glycol ether having an HLB value, measured by Davies method, in the range of 4.2 to 8.0, and a second ink substantially not containing the glycol ether. The second ink contains a second pigment and water.Type: ApplicationFiled: December 10, 2012Publication date: June 13, 2013Applicant: Seiko Epson CorporationInventor: Seiko Epson Corporation
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Patent number: 8454710Abstract: To provide a process for producing an azo pigment showing excellent coloring characteristics such as tinctorial strength and hue and showing excellent fastness such as light fastness and ozone fastness, an azo pigment dispersion, a coloring composition, and an ink for inkjet recording.Type: GrantFiled: January 14, 2011Date of Patent: June 4, 2013Assignee: FUJIFILM CorporationInventors: Masahiro Higashi, Nobuo Seto, Yoshihiro Jimbo, Keiichi Tateishi
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Patent number: 8313576Abstract: 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: GrantFiled: October 15, 2010Date of Patent: November 20, 2012Assignee: AGFA-GEVAERT N.V.Inventor: Geert Deroover
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Patent number: 8202327Abstract: A pigment composition including (A) an azo pigment represented by formula (1), and at least one of (B) a coloring agent represented by formula (2), or (C) at least one additive represented by formula (3) or an additive represented by formula (4).Type: GrantFiled: June 29, 2011Date of Patent: June 19, 2012Assignee: FUJIFILM CorporationInventors: Masahiro Higashi, Yoshihiro Jimbo, Keiichi Tateishi
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Publication number: 20120048141Abstract: A non-aqueous inkjet ink comprises silica and Brilliant Carmine 6B. A peak area obtained at the time of measurement of an organic acid quantity of a water extract of Brilliant Carmine 6B by use of a capillary electrophoresis apparatus is selected within the range of 50 to 300 mABU*sec.Type: ApplicationFiled: August 16, 2011Publication date: March 1, 2012Applicant: RISO KAGAKU CORPORATIONInventors: Masakatsu ARAI, Syotaro KON, Hiroshi HAYASHI, Kenji SHIMOMURA, Teruaki OKAWA
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Patent number: 8062416Abstract: The invention provides a process for preparing uncoated, readily dispersible C.I. Pigment Red 112 by azo coupling in a microreactor, which comprises precipitating the coupling component in an upstream microreactor and coupling the precipitated coupling component in finely divided form to the diazo component in a microreactor. The C.I. Pigment Red 112 of the invention features low dispersion harshness in alkyd resin varnish, and a PCB content of below 25 ppm.Type: GrantFiled: February 26, 2010Date of Patent: November 22, 2011Assignee: Clariant Finance (BVI) LimitedInventors: Lars Schneider, Martin Reif
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Patent number: 8048213Abstract: Inkjet ink compositions comprising a liquid vehicle, an azo pigment, and a synergist are described. The colorant of the azo pigment and the synergist have specific structural features that, in combination, can be used to form an inkjet ink composition having long term stability in a variety of ink vehicles.Type: GrantFiled: April 6, 2009Date of Patent: November 1, 2011Assignee: Cabot CorporationInventor: Alexander I. Shakhnovich
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Patent number: 8022117Abstract: A non-aqueous pigment dispersion includes a color pigment, a polymeric dispersant, and a dispersion synergist wherein the molecular weight of the anionic part of the dispersion synergist containing at least one carboxylate anion is smaller than 98% of the molecular weight of the color pigment and that the anionic part of the dispersion synergist has a similarity coefficient SIM of at least 0.5 with the similarity coefficient defined by: SIM = t · C S + P - C wherein, S represents the number of atoms in the anionic part of the dispersion synergist; P represents the number of atoms in the color pigment; C represents the largest number of atoms in common between the anionic part of the dispersion synergist and the color pigment as one continuous structure; and t is an integer representing the number of times that the largest number of atoms in common C fits into the organic color pigment, without using atoms of the color pigment twice.Type: GrantFiled: November 28, 2006Date of Patent: September 20, 2011Assignee: Agfa Graphics NVInventors: Geert Deroover, Nicolas Point
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Publication number: 20110091659Abstract: There is described a process for colouring elements made of polymeric material, in particular yarns produced selectively in polyethylene (PE), in ultra high molecular weight polyethylene (UHMW-PE) and derivatives thereof, such as HSHM-PE, comprising a step of immersing the elements (10) in a liquid colourant (1) comprising at least: water (2); pigments (3) chosen from anthraquinone colorants, azo colorants and inks for the textile industry; and additives (4) comprising at least an equalizing agent (6) and a dispersing agent (7); the immersion step being performed at a temperature between 50° C. and 220° C.Type: ApplicationFiled: June 15, 2009Publication date: April 21, 2011Inventors: Marco Goretti, Maria Antonietta Longhi
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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: 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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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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Publication number: 20100302292Abstract: A process for printing inkjet ink and other aqueous compositions through silicon-based microelectromechanical printer structures is disclosed that suppresses the normal dissolution of the silicon device components in contact with the aqueous composition. Inkjet ink and other aqueous compositions used in the process contain the soluble salts of organic aromatic azo compounds in sufficient concentrations to inhibit silicon corrosion. The useful lifetime of microelectromechanical fluidic devices based on silicon fabrication is extended.Type: ApplicationFiled: May 29, 2009Publication date: December 2, 2010Inventors: Kevin P. Dockery, Allan F. Sowinski, Barbara B. Lussier, Mihaela L. Madaras, Kurt D. Sieber, Hwei-Ling Yau
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Patent number: 7837780Abstract: A green color filter having a green filter layer comprising a bridged aluminum phthalocyanine pigment and a second pigment having its maximum absorption at a wavelength from 400 to 500 nm.Type: GrantFiled: November 10, 2006Date of Patent: November 23, 2010Assignee: Global OLED Technology LLCInventors: Margaret J. Helber, Paula J. Alessi, Mitchell S. Burberry, Donald R. Diehl, Mary C. Brick, Steven Evans, Ronald S. Cok
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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: 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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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: 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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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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Patent number: 7662308Abstract: Novel fluorescent polyhedral oligomeric silsesquioxane (POSS) colorants are provided. The colorants are strongly fluorescing and long lasting with excellent light stability. The novel colorants can be prepared from chromophores found in common pigments and provide a simple way to convert an insoluble pigment into a soluble fluorescent colorant.Type: GrantFiled: July 16, 2007Date of Patent: February 16, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Suruliappa G. Jeganathan, David Bramer, Redina Kote, Gajanan J. Maladkar
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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: 7550041Abstract: The invention pertains to a highly concentrated pigment comprising from 75 to 95% by weight, preferably from 78 to 95% by weight, most preferred from 80 to 95% by weight, based on the weight of the composition, of a pigment; from 0 to 20% by weight, preferably from 5 to 18% by weight, based on the weight of the composition, of a resin; the total of pigment and resin being from 85 to 98% by weight of the composition; and from 1 to 15% by weight, preferably from 2 to 15% by weight, most preferably from 5 to 15% by weight, based on the weight of the composition, of a C10-C18 alcohol, a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa, or both a C10-C18 alcohol and a liquid hydrocarbon having a boiling point higher than 80° C. at 105 Pa. Also claimed are a process for its manufacture, comprising dry-milling, blending and kneading the components, and the use of the pigment concentrates for the preparation of a masterbatch, ink, coating, plastic material, toner or colour filter.Type: GrantFiled: October 24, 2005Date of Patent: June 23, 2009Assignee: Ciba Specialty Chemicals CorporationInventors: Thomas Healy, Lynda Cannon, Tracy Murray
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Publication number: 20090038505Abstract: 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: ApplicationFiled: November 28, 2006Publication date: February 12, 2009Applicant: AGFA GRAPHICS NVInventor: Geert Deroover
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Publication number: 20090025600Abstract: 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: ApplicationFiled: November 16, 2006Publication date: January 29, 2009Inventor: Juergen Gerold
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Patent number: 7465348Abstract: A nanoscale pigment particle composition includes 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 associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.Type: GrantFiled: June 7, 2007Date of Patent: December 16, 2008Assignee: Xerox CorporationInventors: Rina Carlini, C. Geoffrey Allen, Sandra J. Gardner, Karl W. Dawson, Peter G. Odell, Paul F. Smith, Jennifer L. Belelie
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Publication number: 20080302271Abstract: A nanoscaled pigment particle composition includes 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 associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.Type: ApplicationFiled: June 7, 2007Publication date: December 11, 2008Applicant: XEROX CORPORATIONInventors: Rina CARLINI, C. Geoffrey Allen, Sandra J. Gardner, Karl W. Dawson, Peter G. Odell, Paul F. Smith, Jennifer L. Belelie
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Patent number: 7459014Abstract: An ink preferably used in piezoelectric ink jet devices includes an ink vehicle that includes at least one curable monomer, at least one polymerizable organic gelator, at least one initiator, at least one colorant and optionally at least one low molecular mass non-reactive organic gelator and/or at least one thermal solvent. The use of the curable gelator enables the ink to form a gel state having a viscosity of at least 102.5 cps at very low temperatures of about 30° C. to about 50° C. The ink may thus be jetted at low temperatures of about 50° C. to about 90° C. The ink is heated to a first temperature above the gel point of the ink, jetted onto a surface maintained at a second temperature at which the ink forms a gel state, and when on the image receiving substrate, is exposed to radiation energy to polymerize the polymerizable components of the ink.Type: GrantFiled: January 14, 2005Date of Patent: December 2, 2008Assignee: Xerox CorporationInventors: Marcel P. Breton, Peter G. Odell, Christine E. Bedford, Jennifer L. Belelie, Jeffrey H. Banning
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Publication number: 20080289534Abstract: 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: ApplicationFiled: November 28, 2006Publication date: November 27, 2008Applicant: AGFA GRAPHICS NVInventor: Geert Deroover
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Patent number: 7419541Abstract: A pigment preparation comprising C.I. Pigment Yellow 74 of formula (I) as base pigment and C.I. Pigment Yellow 62 of formula (II) as pigment dispersant.Type: GrantFiled: December 8, 2004Date of Patent: September 2, 2008Assignee: lariant Produkte (Deutschland) GmbHInventors: Felix W. Grimm, Bernd Nestler, Joerg Schueller, Wojciech Nieradzik, Werner Sindermann, Joachim Weber, Ruediger Jung
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Patent number: 7416596Abstract: The invention relates to the use of a pigment composition containing between 86.0 and 99.9 total mol % of C.I. Pigment Yellow 74 molecules and between 14.0 and 0.1 total mol % of at least one monoazo pigment of the formula (1) wherein R1 represents Cl, OCH3, OH3 or NO2 as a coloring agent for pigmenting ink-jet inks and color filters.Type: GrantFiled: February 11, 2005Date of Patent: August 26, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Karl-Heinz Schweikart, David Blum, Felix W. Grimm, Martin U. Schmidt, Josef Geisenberger
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Patent number: 7384472Abstract: The invention concerns a pigment preparation based on C.I. Pigment Yellow 155, containing 0.1% to 50% by weight, based on the weight of C.I. Pigment Yellow 155, of at least one pigment dispersant from the group of monoazo or disazo pigments substituted with at least one sulfonic acid group, characterized in that it has a chroma C greater than 53 in the CIELAB system in a solventborne alkyd melamine varnish comprising a 6.7% by weight concentration of the pigment preparation, and/or in that it has a chroma C greater than 35 in the CIELAB system in an aqueous base varnish system in a white reduction comprising a 0.2% by weight concentration of the pigment preparation in white reduction.Type: GrantFiled: March 14, 2007Date of Patent: June 10, 2008Assignee: Clariant International Ltd.Inventors: Karl-Heinz Schweikart, Jean-Philippe Lerch, Laurent Pourcheron
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Patent number: 7377974Abstract: The invention relates to the use of pigment preparations comprising C.I. Pigment Yellow 74 as base pigment and one or more pigment dispersants of the formula (I) wherein R1, R2, R3, R4, R5, and R6 independently represent hydrogen, halogen, such as chlorine or bromine, C1-C4 alkyl, such as methyl, ethyl or tert-butyl, C1-C4 alkoxy, such as methoxy or ethoxy, nitro, trifluoromethyl, cyano, phenyl, a group SO3?E+- or COO?E+, provided that there is at least one and no more than two ionic groups of type SO3?E+- or COO?E+ are supplied, one group being located in the coupling radical and the other being located in the base radical of the compound of the formula (I) in case two ionic groups are supplied, E+ represents H+, the equivalent Mm+/m of a metal cation Mm+, m representing one of the numbers 1, 2, or 3 a phosphonium ion; or an unsubstituted or substituted ammonium ion, for pigmenting electrophotographic toners and developers, inks, aqueous binder systems, and color filters.Type: GrantFiled: December 8, 2004Date of Patent: May 27, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Felix W. Grimm, Joerg Schueller, Joachim Weber, Ulrike Rohr
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Patent number: 7323045Abstract: Objects of the present invention are to provide a magenta ink composition having good light-fastness and gas resistance, and excellent moisture resistance and clogging resistance, and to provide a magenta ink composition having excellent colorability in addition to these characteristics. The present invention provides a magenta ink composition containing, as colorants, at least one selected from compounds represented by undermentioned formula (1) and salts thereof, and at least one selected from compounds represented by undermentioned formula (2) and salts thereof. Moreover, the present invention also provides a magenta ink composition containing, as colorants, the above and in addition at least one selected from compounds represented by undermentioned formula (3). (Definitions of the symbols in the formulae are as in the claims.Type: GrantFiled: September 28, 2004Date of Patent: January 29, 2008Assignee: Seiko Epson CorporationInventors: Masahiro Hanmura, Kazuhiko Kitamura
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Patent number: 7318863Abstract: The invention relates to an azo pigment preparation containing a) at least one azo pigment, b) a resin based on colophonium or modified colophonium with an acid value equal to or higher than 320 mg KOH/g, and c) an ammonium salt of a sulfonated diaryl yellow pigment.Type: GrantFiled: October 5, 2004Date of Patent: January 15, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Heinz Bach, Ulrich Ott, Rainer Winter
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Patent number: 7309389Abstract: The invention is directed to an electrophotographic toner or developer, powder coating, ink jet ink or an electronic media having an azo colorant prepared by conducting the diazotization of aromatic or hetaromatic amines or the azo coupling reaction or the diazotization and the azo coupling reaction in a microreactor.Type: GrantFiled: June 9, 2006Date of Patent: December 18, 2007Assignee: Clariant Finance (BVI) LimitedInventors: Ruediger Baur, Hans-Tobias Macholdt, Uwe Nickel, Leonhard Unverdorben, Christian Wille
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Patent number: 7300511Abstract: Pigment dispersions that when used in printing ink having a relative interfacial tension drop of less than 1.5, and offering an ink viscosity of less than 150 Pa.s, and containing at least 45 wt. % pigment.Type: GrantFiled: July 1, 2005Date of Patent: November 27, 2007Assignee: Sun Chemical CorporationInventors: Gregory T. Huber, Tatiana N. Romanova, Russell J. Schwartz, Lisa Clapp, Terrance R. Chamberlain, Don Henderson
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Patent number: 7297203Abstract: An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy can improve the ink ejection stability and shows a high storage stability and a high color developability. An ink to be used in an ink jet recording method of ejecting an ink from a recording head through action of thermal energy is characterized in that the ink comprises a pigment represented by the general formula (1), a dispersant, a water-soluble organic compound and an aggregation inhibiting substance for inhibiting aggregation after dispersion breakdown of the pigment, and the content (mass %) of the aggregation inhibiting substance with respect to the total mass of ink is 0.4 times or more to less than 1.Type: GrantFiled: April 24, 2006Date of Patent: November 20, 2007Assignee: Canon Kabushiki KaishaInventors: Yoichi Takada, Nobuyuki Matsumoto, Itaru Tsuji, Yuko Takada, Shinichi Hakamada, Sadayuki Sugama, Masashi Tsujimura, Fumiaki Fujioka