Six-ring Members In The Heterocyclic Ring Patents (Class 106/31.77)
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Patent number: 7387670Abstract: A pigment preparation comprising at least one copper phthalocyanine pigment from the group of C.I. Pigment Blue 15, 15:0, 15:1,15:2, 15:3, 15:4, and 15:6, and at least one pigment dispersant of the formula (I), in which n is a number 1, 2, 3 or 4.Type: GrantFiled: February 22, 2005Date of Patent: June 17, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Joachim Weber, Manfred Opravil, Magali Meder, Hans-Tobias Macholdt
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Patent number: 7384463Abstract: Phase change ink comprising an ink vehicle that includes at least one amphiphilic molecule. The amphiphilic molecule is capable of co-crystallizing into the at least one wax monomer to form functionalized spherulites which are then capable of hydrogen bonding to other similarly functionalized spherulites to form a bonded network of spherulites. Increased adhesive and cohesive strength of the ink on paper can result, thereby generating a robust image.Type: GrantFiled: October 30, 2006Date of Patent: June 10, 2008Assignee: Xerox CorporationInventors: Tyler B. Norsten, Peter G. Odell
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Patent number: 7384464Abstract: The present invention relates to an ink-jet ink, an ink-jet recording material or an ink-jet system containing at least one water-soluble hindered amine compound of the general formula (I): wherein G1 and G2 are independently alkyl 1 to 4 carbon atoms or are together pentamethylene; Z1 and Z2 are each methyl, or Z1 and Z2 together form an unsubstituted linking moiety or a linking moiety substituted by one or more groups selected from an ester, ether, hydroxy, oxo, cyanohydrin, amide, amino, carboxy or an urethane group; E is alkoxy of 1 to 18 carbon atoms, cycloalkoxy of 5 to 12 carbon atoms or aralkoxy of 7 to 15 carbon atoms, or E is —O-T-(OH)b; T is a straight or branched chain alkylene of 1 to 18 carbon atoms, cycloalkylene of 5 to 18 carbon atoms, cycloalkenylene of 5 to 18 carbon atoms, a straight or branched chain alkylene of 1 to 4 carbon atoms substituted by phenyl or by phenyl substituted by one or two alkyl groups of 1 to 4 carbon atoms; b is 1, 2 or 3 with the proviso that b cannot exceed theType: GrantFiled: March 22, 2005Date of Patent: June 10, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin G. Wood, Robert E. Detlefsen, Joseph Suhadolnik, Walter Renz
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Patent number: 7377972Abstract: An aqueous printing fluid, comprising a cosolvent, the cosolvent or mixture of compounds comprising at least one inner salt compound having a sp3-hybridized nitrogen cation and an associated anionic charge either isolated on an N-substituted oxygen anion bound directly to the sp3-hybridized nitrogen cation or isolated among the oxygens of a carboxylate group; a method of avoiding paper curl in printed paper by using the above-described aqueous printing fluid; and a printer system for avoiding paper curl in printed paper through using the above-described aqueous printing fluid.Type: GrantFiled: September 27, 2004Date of Patent: May 27, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Gary W Byers, Richard Anderson, Mark L. Choy
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Patent number: 7371858Abstract: Compounds of the formulae wherein, provided that at least one of R1, R2, and R3 is not a hydrogen atom, R1, R2, and R3 each, independently of the other, is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, and wherein R1 and R2 can also be alkoxy aryloxy, arylalkyloxy, alkylaryloxy, polyalkyleneoxy, polyaryleneoxy, polyarylalkyleneoxy, polyalkylaryleneoxy, silyl, siloxane, polysilylene, polysiloxane, or a group of the formula wherein r and s are integers representing a number of repeat —CH2— groups, and wherein X is a direct bond, oxygen, sulfur, —NR40— wherein R40 is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, or —CR50R60— wherein R50 and R60 each, independently of the other, is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, and R10 and R11 each, independently of the other, is alkylene, arylene, arylalkylene, or alkylarylene, and wherein R10 can also be polyalkyleneoxy, polyaryleneoxy, polyarylalkyleneoxy, polyalkylaryleneoxy, silylene, siloxane, polysilylene, or polysiloxane.Type: GrantFiled: March 5, 2004Date of Patent: May 13, 2008Assignee: Xerox CorporationInventors: Danielle C Boils-Boissier, Marcel P Breton, Jule W Thomas, Jr., Donald R Titterington, Jeffrey H Banning, H Bruce Goodbrand, James D Wuest, Marie-Eve Perron, Hugues Duval
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Patent number: 7351278Abstract: This invention pertains to an aqueous inkjet ink with a certain chelator additive, inkjet ink sets based on this aqueous inkjet ink, and to a method of printing with these inks and ink sets, whereby optical density (OD) of a printed image is increased. The chelator additive is particularly advantageous for increasing the OD of inks with a self-dispersing pigment colorant, and particularly the combination of such colorant with a multivalent cation additive.Type: GrantFiled: May 31, 2005Date of Patent: April 1, 2008Assignee: E.I. du Pont de Nemours and CompanyInventor: Christian Jackson
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Patent number: 7341626Abstract: A pigment composition containing one or more, organic yellow pigments selected from the group C.I. Pigment Yellow (213), Pigment Yellow (214) and disazo pigment of the formula (I) and containing one or more inorganic pigments.Type: GrantFiled: August 18, 2004Date of Patent: March 11, 2008Assignee: Clariant Produkte (Deutschland) GmbHInventors: Joachim Weber, Gerhard Wilker
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Publication number: 20080036838Abstract: An ink composition for inkjet recording, and more particularly, an ink composition for inkjet recording in which bleeding between colors of a printed image is reduced, and dry and wet rub fastness of a printed image are improved. The ink composition includes an oxylate-based compound and an amide compound.Type: ApplicationFiled: November 30, 2006Publication date: February 14, 2008Inventors: In-hye Kim, Jong-in Lee
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Publication number: 20080030561Abstract: A composite color includes a first colored ink and a second colored ink. The first colored ink exhibits a color that is different from that exhibited by the second colored ink. The first colored ink includes pigment particles either formulated at a basic pH so that a surface of the pigment particles carries a net negative charge or formulated at an acidic pH so that a surface of the pigment particles carries a net positive charge; and the second colored ink includes pigment particles either formulated at an acidic pH so that a surface of each of the pigment particles carries a net positive charge or formulated at a basic pH so that a surface of the pigment particles carries a net negative charge. The first colored ink and the second colored ink have opposite charges. The composite color exhibits enhanced color richness when printed on a substrate.Type: ApplicationFiled: August 2, 2006Publication date: February 7, 2008Inventors: Jayprakash Bhatt, Cory Ruud, Sundar Vasudevan
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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: 7311769Abstract: A pigment composition containing a disazo pigment of formula (I) and at least one pigment from the group of organic orange, red and violet pigmentsType: GrantFiled: November 11, 2004Date of Patent: December 25, 2007Assignee: Clariant Produkte (Deutschland) GmbHInventors: Joachim Weber, Gerhard Wilker, Frank Alfter, Hans-Tobias Macholdt
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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: 7303615Abstract: There is provided a colorant material comprising a compound represented by at least one of the following general formulas (1) and (2) as a first colorant compound and at least one of a water insoluble triphenylmethane compound and a water insoluble xanthene compound as a second colorant compoundType: GrantFiled: February 24, 2005Date of Patent: December 4, 2007Assignee: Canon Kabushiki KaishaInventors: Yuko Yamagishi, Yasuaki Murai, Takeshi Miyazaki
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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: 7294184Abstract: Provided is an ink jet ink containing a coloring material having a buffer region in an ink use range, the ink jet ink being capable of suppressing the occurrence of the deterioration (dissolution) of a heating portion surface in contact with liquid; and the disconnection of wiring for applying a voltage to a heating portion even when long term continuous printing is performed. The ink jet ink is used for an ink jet recording apparatus equipped with a recording head having a heating portion surface in contact with liquid comprising a metal and/or a metal oxide. The ink jet ink contains a coloring material in a content (mass %) of 3 mass % or more with respect to the total mass of the ink jet ink. The coloring material is a colorant having a buffer region in an ink use range, and comprises a compound represented by the following general formula (I) and/or a compound represented by the following general formula (II) H(OCH2CH2)pR5.Type: GrantFiled: December 30, 2005Date of Patent: November 13, 2007Assignee: Canon Kabushiki KaishaInventors: Kuniaki Fujimoto, Shin-ichi Sato, Jun Yoshizawa, Yoshihide Aikawa, Kunihiko Nakamura, Masanori Jinnou
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Patent number: 7291213Abstract: An ink composition comprising: a coloring agent having an oxidation potential of more electropositive than 1.0V (vs SCE); a water; a guanidine compound; and a surfactant, the ink composition to be used in inkjet recording and an inkjet recording method with the use of the ink composition.Type: GrantFiled: August 23, 2005Date of Patent: November 6, 2007Assignee: Fujifilm CorporationInventors: Manabu Ogawa, Keiichi Tateishi
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Patent number: 7282090Abstract: An ink jet ink includes at least a coloring material. The coloring material is composed of at least one selected from the group consisting of C.I.Type: GrantFiled: February 27, 2006Date of Patent: October 16, 2007Assignee: Canon Kabushiki KaishaInventors: Koichi Osumi, Sadayuki Sugama
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Patent number: 7279033Abstract: An ink-jet ink containing a colorless, water-soluble, planar compound having more than ten delocalized pi-electrons per molecule.Type: GrantFiled: September 9, 2004Date of Patent: October 9, 2007Assignee: Fujifilm CorporationInventors: Yoshiharu Yabuki, Toshiki Taguchi, Makoto Suzuki
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Patent number: 7270703Abstract: To provide a novel phthalocyanine compound, and an inkjet ink and inkjet recording method capable of an image having an excellent hue, fastness to light and ozone gas resistance. To provide various coloring compositions such as an ink sheet for heat-sensitive recording material, color toner for electrophotography, and color filter, and to provide improving method of oxidation resistance of an image. [Means for Resolution] A phthalocyanine compound substituted with —SO2NH—Z (Z represents a heterocyclic group) in at least one combination of 2 and 3, 6 and 7, 10 and 11, and 14 and 15-positions, wherein at least one of the 1 to 16-positions has two or more carbon atoms and the total number of the carbon atom thereof is 8 or more, inkjet ink using the compound, ink sheet, color toner and a color filter composition, which use the compound.Type: GrantFiled: June 21, 2002Date of Patent: September 18, 2007Assignee: Fujifilm CorporationInventors: Keiichi Tateishi, Masaki Noro, Yoshiharu Yabuki, Tadashi Omatsu
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Patent number: 7270699Abstract: The invention provides an ink set for ink-jet recording that is able to form an image having a sufficient optical density and causing no feathering and intercolor bleed within a short period of time while being excellent in reliability of the maintenance unit. The ink set comprises at least a liquid (a) containing a colorant, water soluble solvent and water; a liquid (b) containing a pH adjusting agent, water soluble solvent and water; and a liquid (c). The ink set satisfies any one of the conditions in the first embodiment: (i) the colorant is anionic, (ii) the liquid (b) has a pH of not higher than 6.5, (iii) the liquid (c) has a pH of not lower than 8.0, and (iv) the mixed liquid of the liquid (b) and the liquid (c) in a mass ratio of 1:1 has a pH of not lower than 7; or the second embodiment: (i) the colorant is cationic, (ii) the liquid (b) has a pH of not lower than 8.5, (iii) the liquid (c) has a pH of not higher than 6.Type: GrantFiled: September 1, 2004Date of Patent: September 18, 2007Assignee: Fuji Xerox Co., Ltd.Inventor: Takatsugu Doi
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Patent number: 7255733Abstract: A process for the production of a ? type copper phthalocyanine pigment, comprising dry-milling a crude copper phthalocyanine having a purity of 97 to 100% and a primary crystal diameter of 0.5 to 100 ?m at a temperature of 180 to 50° C., to prepare an ?/? mixed crystal type copper phthalocyanine having an ? ratio of 5 to 35%, and treating the dry-milled product with a water-miscible organic solvent, wherein 0.1 to 20% by weight of at least one compound selected from the group consisting of a compound of the formula (1), a compound of the formula (2) and a compound of the formula (3) is added to the dry-milled product before, during or after the step (B) MePc—{X—(CH2)kNR1R2}n??(1) MePc—(SO3?N+R5R6R7R8)p.Type: GrantFiled: June 18, 2004Date of Patent: August 14, 2007Assignee: Toyo Ink Mfg. Co., Ltd.Inventors: Osamu Shiromaru, Yusaku Ide, Toshio Oshiba, Takuya Kotani
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Patent number: 7255737Abstract: The present invention is directed to pigment formulations comprising at least one metal complex of an azo compound which in the form of its tautomeric structures generally conforms to the formula (I) The invention is further directed to processes for their production of the metal complexes and their use and particularly to color filters and the use of the color filters.Type: GrantFiled: April 19, 2005Date of Patent: August 14, 2007Assignee: LANXESS Deutschland GmbHInventors: Ulrich Feldhues, Frank Linke, Ronald Göbel
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Publication number: 20070176991Abstract: An ink composition which comprises a compound represented by formula (1), which is described in the specification; and a plurality of water-soluble organic solvents, wherein the water-soluble organic solvents contains at least a water-soluble organic solvent having a thioether or sulfoxide moiety in an amount of 10 mass % to 80 mass %, and a recording method which uses the ink composition.Type: ApplicationFiled: February 1, 2007Publication date: August 2, 2007Applicant: FUJIFILM CorporationInventor: Yoshimitsu Arai
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Patent number: 7247194Abstract: An ink jet ink is disclosed which includes water, a water-soluble organic solvent and a coloring material and has excellent properties. The coloring material is a specific phthalocyanine derivative and is contained in a specific amount in the ink. The water-soluble organic solvent includes a specific amount of 2-pyrrolidone. In addition, a d75 value is in a specific range where the d75 value corresponds to 75% of a dispersion distance distribution, measured by a small angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 0.5 mass %.Type: GrantFiled: December 30, 2005Date of Patent: July 24, 2007Assignee: Canon Kabushiki KaishaInventors: Daiji Okamura, Shin-ichi Sato, Jun Yoshizawa, Kunihiko Nakamura, Tomohiro Yamashita, Masanori Jinnou
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Patent number: 7244298Abstract: A metal chelate compound of Formula (1) or a salt thereof: [A-N?N—B]M??Formula (1) wherein: A is an optionally substituted pyridyl ring; and B is of the Formula (2): wherein: X and W are substituents other than H; M is a metal chelated to A-N?N—B; and n is 0 to 4, also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and an ink jet printer cartridge containing the ink.Type: GrantFiled: March 3, 2004Date of Patent: July 17, 2007Assignee: Fujifilm Imaging Colorants LimitedInventors: Clive Edwin Foster, Clive Moscrop, Gavin Wright, Rachel Anne James
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Patent number: 7238228Abstract: A metal chelate of Formula (1) or salt thereof. Formula (1) wherein: R1 and R2 are each independently H or an organic group; M is a metal; p is 1 to 4; Y is an optionally substituted heterocyclic ring with a nitrogen ortho to the azo bridge; G is a substituent; and n is 0 to 5.Type: GrantFiled: March 15, 2004Date of Patent: July 3, 2007Assignee: Fujifilm Imaging Colorants LimitedInventors: Gavin Wright, Peter Gregory
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Patent number: 7238227Abstract: A metal chelate compound of Formula: (1) or a salt thereof: [A—N?N—B] M (1) wherein: A is a 5- or 6-membered heterocyclic ring other than a triazole ring, optionally carrying one or more substituents; B is of the Formula (2a) or (2b). Formula (2a) (2b) wherein: X, Y and W are substituents other than H; M is a metal chelated to A—N?N—B; and n is 0 to 4.Type: GrantFiled: February 17, 2004Date of Patent: July 3, 2007Assignee: Fujifilm Imaging Colorants LimitedInventors: Clive Edwin Foster, Gavin Wright, Kevin Johnson, Mairi Elizabeth Raggatt, Prakash Patel
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Patent number: 7229488Abstract: An ink composition includes a colorant, a solvent, and an amine alcohol compound represented by formula I in which n is an integer and 0?n?9.Type: GrantFiled: August 1, 2006Date of Patent: June 12, 2007Assignee: Samsung Electronics Co., Ltd.Inventor: Jong-in Lee
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Patent number: 7214260Abstract: The present invention provides an ink set for ink jet recording using at least two kinds of liquids. The first liquid contains at least a colorant, a water soluble solvent and water, and the second liquid contains at least a compound represented by the following general formula (1), a water soluble solvent and water.Type: GrantFiled: June 4, 2004Date of Patent: May 8, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Takatsugu Doi, Chizuru Koga, Takashi Ogino, Kiyoshi Hosoi, Tsukasa Matsuda
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Patent number: 7201791Abstract: There is provided an ink jet light-color ink which is excellent in color developability and is capable of achieving compatibility between environmental gas resistance and bronze resistance. The ink jet light-color ink to be used in combination with ink jet deep-color ink has a relatively large coloring material content, and comprises at least water, a water-soluble organic solvent, and a coloring material. The ink jet deep-color ink and the ink jet light-color ink satisfy specific conditions.Type: GrantFiled: January 26, 2006Date of Patent: April 10, 2007Assignee: Canon Kabushiki KaishaInventors: Daiji Okamura, Yoshihisa Takizawa, Shin-ichi Sato, Jun Yoshizawa, Kunihiko Nakamura, Yoshihide Aikawa, Tomohiro Yamashita, Masanori Jinnou
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Patent number: 7198667Abstract: Solid pigment preparations containing the following ingredients as substantial components: (A) 60–85 wt. % of at least one organic pigment, (B) 0.1–15 wt.Type: GrantFiled: November 28, 2003Date of Patent: April 3, 2007Assignee: BASF AktiengesellschaftInventors: Ingo Klopp, Juan Antonio Gonzalez Gomez, Uwe Mauthe, Hansulrich Reisacher, Andreas Stohr
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Patent number: 7166158Abstract: The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for pigmenting high molecular weight organic materials.Type: GrantFiled: July 13, 2004Date of Patent: January 23, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: Valentina K. Mitina, Kevin Rodney Gerzevske, Stéphane Biry, Christine Halik
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Patent number: 7163576Abstract: A compound of Formula (1): wherein: A1 and A2 are each independently optionally substituted phenyl or naphthyl; each Q independently is optionally substituted phenylene; each R1 independently is H or optionally substituted alkyl; R2 is H or optionally substituted alkyl; and R3 is alkyl carrying a sulpho group; provided that the compound of Formula (1) carries at least one carboxylic acid group; and provided the compound of Formula (1) is not of Formula (2): wherein: m is 1 or 2; n is 1 or 2; and x is 2 to 4. Also claimed are compositions and inks.Type: GrantFiled: July 14, 2003Date of Patent: January 16, 2007Assignee: Fujifilm Imaging Colorants LimitedInventors: Helen Ava Oshaughnessy, Maria Soteri Hadjisoteriou
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Patent number: 7160372Abstract: There is provided ink jet ink containing at least a coloring material, in which: the coloring material is a compound represented by the following general formula (I) or a salt thereof; a content (weight %) of the coloring material is 3.0 weight % or more with respect to a total weight of the ink jet ink; in a dispersion distance distribution, measured by a small-angle X-ray scattering method, of molecular aggregates in the ink jet ink whose coloring material concentration is adjusted to 3.0 weight %, a dispersion distance d75 value corresponding to 75% of the distribution is 6.50 nm or more and 7.Type: GrantFiled: December 30, 2005Date of Patent: January 9, 2007Assignee: Canon Kabushiki KaishaInventors: Jun Yoshizawa, Shin-ichi Sato, Kunihiko Nakamura, Daiji Okamura, Tomohiro Yamashita, Masanori Jinnou
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Patent number: 7156910Abstract: It is an object of the present invention to provide a yellow ink composition which is superior in terms of color reproducibility not only in the high-brightness (high-L*) region, but also in the low-brightness yellow region, i.e., in the region of “low L*, a* close to zero, and high b*”, and an ink set equipped with a yellow ink which has a brightness that is high enough that graininess can be sufficiently suppressed, and which is also superior in terms of color reproducibility in the low-brightness yellow region, i.e., in the region of “low L*, a* close to zero, and high b*”. The present invention provides a yellow ink composition in which the Y value is 86 or greater when the Z value in the XYZ display system stipulated by the CIE is 23. Furthermore, the present invention also provides a yellow ink composition which contains a metal complex pigment. In particular, the yellow ink composition of the present invention can express a low-brightness yellow color with good reproducibility.Type: GrantFiled: April 28, 2005Date of Patent: January 2, 2007Assignee: Seiko Epson CorporationInventors: Shuichi Koganehira, Hironori Sato
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Patent number: 7153351Abstract: Inks comprising a liquid medium and a tris-azo compound of Formula (1) or salt thereof: wherein the liquid medium comprises water and an organic solvent.Type: GrantFiled: November 13, 2003Date of Patent: December 26, 2006Assignee: Fujifilm Imaging Colorants LimitedInventor: David Phillip Devonald
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Patent number: 7141104Abstract: Ink compositions for ink-jet printing is disclosed comprising an UV-absorbing compound according to formula (I): formula (1) whereby the different symbols are defined in the claims and description. The invention further encompasses a method for making an UV-sensitive printing element using the thus defined ink compositions.Type: GrantFiled: May 10, 2004Date of Patent: November 28, 2006Assignee: Agfa-GevaertInventors: Frank De Voeght, Geert Deroover
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Patent number: 7135062Abstract: Image-recording, hydrophilic colorants having an organic pigment linked to a hydrophilic compound through a linking group and which are capable of forming images excellent in print quality such as chroma, gloss, density, light fastness and abrasion fastness, and also as hydrophilic colorants capable of affording inks excellent in physical properties such as long-term storability and press stability are described.Type: GrantFiled: June 11, 2004Date of Patent: November 14, 2006Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.Inventors: Michiei Nakamura, Hideyuki Koiso, Naoyuki Sakai, Yoshiyuki Zama, Atsushi Nogami, Hiroyuki Shimanaka, Seishichi Sasaki, Hiroaki Saikatsu
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Patent number: 7132012Abstract: An ink comprising a compound represented by formula (I) as defined in the specificationType: GrantFiled: July 15, 2005Date of Patent: November 7, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiichi Tateishi, Yoshiharu Yabuki
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Patent number: 7125442Abstract: A lightfast additive and an ink composition including the same include a benzophenone moiety for lightfastness and a moiety for wettability and the ability to stabilize a colorant, wherein the two moieties are covalently bonded. The lightfast additive may exhibit effective ultraviolet (UV) light absorption capacity, effective wettability, and an ability to stabilize a colorant. The ink composition utilizing the light fast additive thus has an improved lightfastness and long-term storage stability.Type: GrantFiled: May 24, 2004Date of Patent: October 24, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Kyung-hoon Lee, Seung-min Ryu, Yeon-kyoung Jung
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Patent number: 7108742Abstract: The invention relates to an ink composition containing (a) a compound of formula (I), Lm?Ln3+(Ch?)n (I), wherein Ln represents a lanthanide, CH? is a negatively charged ligand containing at least one UV absorbing double bond, n denotes 3 or 4, m denotes a number from 1 to 4, in case n is 3, m denotes a number from 1 to 4 and L is a neutral monodentate or polydentate nitrogen-, oxygen- or sulfur-containing UV absorbing ligand with the exception of 2,2?-bipyridyl or, in case n is 4, m denotes 1 and L is a single-charged cation; and (b) a liquid ink carrier, which can be used for applying hidden mark on objects which can only be revealed under UV exposure.Type: GrantFiled: February 18, 2003Date of Patent: September 19, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Véronique Hall-Goulle, Stefan Koller, Mickael Mheidle
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Patent number: 7101428Abstract: The invention is directed to a method or use of 2,9-dichloro-quinacridone as a crystal phase inhibitor during the beta-quinacridone or gamma-quinacridone crude pigment particle size reduction processes. 2,9-dichloroquinacridone is added to the milling composition of the crude gamma or crude beta quinacridone.Type: GrantFiled: November 12, 2004Date of Patent: September 5, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Yingxia He, Colin Campbell, Gordian Schilling, Rhonda Carter
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Patent number: 7097698Abstract: In order to improve the water-resisting property of an image formed on a recording medium such as recording paper and plain paper by using an ink-jet recording ink, while also improving the light-resisting property of the image, an ink-jet recording ink, which contains a color material, water, a moisture-retaining agent, an organic silicon compound and an ultraviolet-ray absorbing agent, is allowed to contain an organic silicon compound in a range of 0.1 parts by weight to 50 parts by weight and an ultraviolet-ray absorbing agent in a range of 0.1 parts by weight to 10 parts by weight with respect to 100 parts by weight of the ink. The ultraviolet-ray absorbing agent is at least one compound selected from the group consisting of benzophenone-based, benzotriazole-based, cyanoacrylate-based and oxalic acid anilide-based compounds.Type: GrantFiled: March 4, 2003Date of Patent: August 29, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Mamoru Soga, Takuma Takasu, Hidekazu Arase
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Patent number: 7097701Abstract: An ink containing a phthalocyanine compound represented by the formula (I): wherein X1 to X4, Y1 to Y4, A1 to A4, and M are defined herein.Type: GrantFiled: December 29, 2003Date of Patent: August 29, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiichi Tateishi, Yoshiharu Yabuki, Shigeaki Tanaka
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Patent number: 7066990Abstract: The present invention relates to an ink jet ink, an ink jet recording material or an ink jet system comprising at least one compound selected from the group consisting of a) the dialkyl hydroxylamine stabilizers, b) the nitrone stabilizers and c) the amine oxide stabilizers. The present stabilizer compounds provide ink jet prints with outstanding light stability, gas fade stability and dark storage stability. The hydroxylamines are for example N,N-dihydrocarbylhydroxylamines of the formula R1R2N—OH, wherein R1 and R2 are independently benzyl, methyl, ethyl, octyl, lauryl, dodecyl, tetradecyl, hexadecyl, heptadecyl or octadecyl, or wherein R1 and R2 are each the alkyl mixture found in hydrogenated tallow amine. The nitrone and amine oxide stabilizers are for example nitrone and amine oxide analogues of the dialkylhydroxylamine stabilizers.Type: GrantFiled: January 21, 2004Date of Patent: June 27, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Mervin G. Wood, Joseph Suhadolnik, Ramanathan Ravichandran, Sai P. Shum
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Patent number: 7060835Abstract: A process for preparing transparent Pigment Yellow 138 by grinding Pigment Yellow 138 in the presence of a grinding agent, preparing an aqueous slurry of the ground particles, and filtering the slurry resulting in a filter cake containing particles of transparent Pigment Yellow 138. In addition, a process for improving color strength of an ink and/or plastic composition is also disclosed by adding transparent Pigment Yellow 138 to the composition.Type: GrantFiled: December 31, 2003Date of Patent: June 13, 2006Assignee: Sun Chemical CorporationInventors: Norman W. Smith, Russell J. Schwartz, Kimberly A. Clark, Terence R. Chamberlain
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Patent number: 7056376Abstract: A process for printing an image on a substrate comprising applying thereto a composition comprising a liquid medium and a compound of Formula (1): T-Q-N?N-L-T??Formula (1) wherein: each T independently is an azo group; Q is an optionally substituted, optionally metallised 1,8-dihydroxynaphthyl group; and L is a divalent organic linker group. Also claimed are compositions and dyes.Type: GrantFiled: April 11, 2003Date of Patent: June 6, 2006Assignee: Avecia LimitedInventors: Ajay Haridas Popat, Alan Dickinson, Maria Soteri Hadjisoteriou, Neil James Thompson, Paul Wight, Peter Gregory, Roy Bradbury, Philip John Double, Thomas Paul
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Patent number: 7056374Abstract: An aqueous ink composition which comprises a compound represented by the formula (1) or the salt thereof: (1) wherein R1 and R2 independently represent a hydrogen atom, an alkyl group, an alkoxy group, an alkanoylamino group, an alkoxyalkoxy group, a sulfonic acid group, a carboxyl group or an ureido group, m and n independently represent 1 or 2, and M1 represents a cation from a hydrogen atom, an alkali metal, an alkaline earth metal or an organic amine, or an ammonium ion. The composition has a hue and clarity suitable for the ink-jet recording, and can provide a recorded matter which is excellent in light resistance, water resistance and moisture resistance and can be controlled with respect to the degree of the discoloration or fading by the action of ozone.Type: GrantFiled: April 1, 2002Date of Patent: June 6, 2006Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hirokazu Kitayama, Yasuo Shirasaki, Toru Tabei
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Patent number: 7052535Abstract: Anti-bronzing compounds are added to inkjet inks to prevent bronzing of the inks when printed on specialty quick-dry inkjet photographic media. These compounds inhibit bronzing by the proper buffering of the dyes relative to the media of interest.Type: GrantFiled: July 28, 2003Date of Patent: May 30, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventors: Linda C. Uhlir-Tsang, John R Moffatt, Mary E Austin
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Patent number: 7029526Abstract: The invention pertains to the field of green color filters and LCDs. It has been found that pigments with surprisingly improved coloristic, chemical and physical properties are obtained by salt-kneading a halogenated phthalocyanine pigment together with a yellow pigment of the disazo condensation, barbituric acid or azoquinolone series. The process takes place in the presence of an organic liquid and in the absence of binder or optionally in the presence of a relatively small amount of binder. Claimed are the process itself as well as the green pigment composition obtained by the process and compositions comprising it.Type: GrantFiled: October 10, 2002Date of Patent: April 18, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Véronique Hall-Goulle, Takashi Deno