Miscellaneous Patents (Class 106/316)
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Patent number: 6083315Abstract: An agglomerated pigment comprises (1) an organic pigment compound, (2) either a sulfonated organic pigment compound obtained by incorporating at least one sulfonic group into the organic pigment compound or a sulfonated organic pigment derivative obtained by incorporating at least one sulfonic group into a derivative of the organic pigment compound, (3) univalent inorganic counter ions bonded to sulfonic groups of component (2), and (4) bivalent or higher inorganic counter ions which are bonded to sulfonic groups of component (2) and wherein each such group has an at least univalent positive charge, the surface of the agglomerated organic pigment as a whole being positively charged. An aqueous pigment dispersion and a water-based ink composition both having excellent storage stability, an agglomerated pigment for use as a raw material for the dispersion, and a process for producing the pigment are provided.Type: GrantFiled: December 22, 1997Date of Patent: July 4, 2000Assignees: Seiko Epson Corporation, Mikuni Color Ltd.Inventors: Hiroto Nakamura, Hidehiko Komatsu, Michinari Tsukahara, Hideo Yamazaki, Minoru Waki, Naoki Okamoto, Kazumi Adachi
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Patent number: 6084006Abstract: A method for manufacturing a color filter comprises a step for charging an ink comprising a thermosetting resin composition onto an opening of a black matrix provided on a transparent substrate and a step for curing the ink by heat treatment. The thermosetting resin composition comprises either a coloring agent, a multifunctional epoxide having at least two glycidyl groups and a compound crosslinked by the multifunctional epoxide; or a coloring agent, a cellulose-reactive compound and a compound crosslinked by the cellulose-reactive compound.Type: GrantFiled: September 8, 1997Date of Patent: July 4, 2000Assignee: Canon Kabushiki KaishaInventors: Akio Kashiwazaki, Katsuhiro Shirota, Koichiro Nakazawa, Masashi Hirose
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Patent number: 6077881Abstract: An ink composition for an ink jet printer. The ink composition contains an oligomeric dispersant, a pigment and a solvent. The oligomeric dispersant simultaneously has a hydrophilic group capable of interacting with water soluble solvent and an anchoring group capable of interacting with the pigment. The ink composition provides good printing properties, water fastness, light fastness and storage stability, by using less amount of dispersant.Type: GrantFiled: January 21, 1998Date of Patent: June 20, 2000Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-min Ryu, Seong-jin Kim
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Patent number: 6077338Abstract: Pigmented ink formulations of different colors, for use in ink jet printers, are optimized with respect to print quality, by the choice of pigments, by controlling the physical characteristics of each pigment dispersion, and by following a particular sequence of manufacturing steps. Controlling surface tension renders the inks compatible with one another; controlling particle size distribution provides flowability; and pigment selection provides resistance to fading.Type: GrantFiled: August 24, 1998Date of Patent: June 20, 2000Inventor: Eva Wallstrom
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Patent number: 6075069Abstract: An ink set and a recording method, especially an ink jet recording method, are provided which can realize a good color image having no significant feathering or bleeding, particularly bleeding derived from color-to-color intermixing. The ink set comprises a yellow ink, a magenta ink, a cyan ink, and optionally a black ink, the cyan ink comprising a resin emulsion, the yellow ink composition and the magenta ink composition comprising a reactant capable of breaking the state of dispersion and/or dissolution of a colorant and the resin emulsion in the cyan ink and the black ink.Type: GrantFiled: September 23, 1997Date of Patent: June 13, 2000Assignee: Seiko Epson CorporationInventor: Kiyohiko Takemoto
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Patent number: 6071989Abstract: Preparation of pigment dispersions bya1) subjecting a mixture A comprising a latent pigment and a polymer to thermal, chemical or photolytic treatment andb) then adding a solvent, ora2) subjecting a mixture B comprising a latent pigment, a polymer and a solvent to thermal, chemical or photolytic treatment,new pigment dispersions and new latent pigments, their use in the process according to the invention for preparing the fine pigment dispersions and the use of the dispersions according to the invention for pigmenting high molecular mass material, including color filters.Type: GrantFiled: June 30, 1998Date of Patent: June 6, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Werner Sieber, Veronique Hall-Goulle
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Patent number: 6063834Abstract: Wet-rub resistant ink compositions are described and the ink compositions have a binder material or binder composition which may be prepared from monomeric precursors which include vinyl halides, acrylates, alkylol amides and urethanes.Type: GrantFiled: December 8, 1997Date of Patent: May 16, 2000Assignee: Lexmark International, Inc.Inventors: William David Kappele, Anna Marie Pearson, Ajay Kanubhalsuthar
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Patent number: 6059868Abstract: Ink-jet liquids, and ink-jet liquid sets, and the method for using the same, are provided wherein the one of the liquids comprises an aqueous vehicle; and a decel-alleviating component, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating. The present formulations are used to formulate ink-jet liquids, and more particularly, to provide enhanced drop ejection performance, such as decel alleviation, when the liquid contains a precipitating agent, such as, a multi-valent metal compound such as a metal salt or metal coordination compound, and more particularly, when the liquid contains both a multi-valent metal salt and a colorant.Type: GrantFiled: October 29, 1998Date of Patent: May 9, 2000Assignee: Hewlett-Packard CompanyInventor: Vladek Kasperchik
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Patent number: 6059869Abstract: An ink for use in an inkjet printer having nozzles for ejecting ink droplets includes a colorant, a hydroxysilane having at least two hydroxy groups, and a liquid carrier for the colorant and the silane.Type: GrantFiled: November 23, 1998Date of Patent: May 9, 2000Assignee: Eastman Kodak CompanyInventors: Werner Fassler, Charles D. DeBoer, John E. Mooney
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Patent number: 6048388Abstract: Disclosed is an ink composition which comprises water, a colorant, and an ionic liquid material. In a preferred embodiment, the ink is substantially free of organic solvents. Also disclosed is a process which comprises incorporating the ink composition into an ink jet printing apparatus and causing droplets of the ink composition to be ejected in an imagewise pattern onto a substrate.Type: GrantFiled: June 29, 1998Date of Patent: April 11, 2000Inventor: William M. Schwarz
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Patent number: 6039793Abstract: Disclosed is a set of inks for generating multicolored images which comprises (a) a first ink having a first color, said first ink comprising water, a colorant, and a monomeric zwitterionic compound, said first ink being substantially free of organic acids having no basic functional groups thereon; and (b) a second ink having a second color darker than the first color of the first ink, said second ink comprising water and a pigment; wherein intercolor bleed between the first ink and the second ink is reduced in visibility.Type: GrantFiled: June 26, 1998Date of Patent: March 21, 2000Assignee: Xerox CorporationInventors: Kurt B. Gundlach, Luis A. Sanchez, Richard L. Colt, Maura A. Sweeney
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Patent number: 6039796Abstract: A good ink composition for ink jet recording, especially an ink composition that can be stably ejected from a recording head and can yield an image possessing excellent rubbing/scratch resistance. An ink jet recording method comprising the step of printing two solutions of a first solution and an ink composition that, even in the case of printing on a recycled paper, can realize a good printed image, especially an image having no significant feathering and free from unevenness of printing and an image free from color bleeding. The ink composition comprises a combination of an inorganic oxide colloid with an alkali metal hydroxide.Type: GrantFiled: June 26, 1998Date of Patent: March 21, 2000Assignee: Seiko Epson CorporationInventors: Kazuhide Kubota, Toshiyuki Miyabayashi
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Patent number: 6036759Abstract: The ink set of this invention comprises an anionic black pigmented ink and at least one color ink containing a dye or pigment colorant. The performance of these ink sets is improved by the addition of specific cationic surfactant or cationic (quaternary) salts which interact with the anionic black pigmented ink to provide improved black to color bleed control.Type: GrantFiled: April 30, 1998Date of Patent: March 14, 2000Assignee: Hewlett-Packard CompanyInventors: Palitha Wickramanayake, Raymond J. Adamic
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Patent number: 6036764Abstract: The present invention relates to a yellow pigment blend containing a) a yellow nickel titanate pigment, b) a yellow bismuth vanadate, and c) a yellow isoindolinone pigment, wherein a hardened pigmented article resulting from the blend is characterized according to the CIE tristimulus values system by having a value for Y of at least about 36, a value for x between 0.48 and 0.51 and a value for y between 0.44 and 0.47. The yellow pigment blend has very good heat resistance for hot melt application and very good lightfastness for long term durability.Type: GrantFiled: June 11, 1998Date of Patent: March 14, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Kim Diane Gooding, James Martin Delaney
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Patent number: 6034153Abstract: The ink of the invention comprises (a) a vehicle comprising (1) about 1 to 50 wt % of at least one organic solvent as humectants, and (2) about 0.01 to 20 wt % of at least one water-soluble surfactant or amphiphilic polymer (cationic, anionic, or non-ionic); (b) about 1 to 20 wt % of at least one partial chemically-modified, water-soluble colorant, the colorant having sufficient functional groups associated therewith to be substantially waterfast in deionized water while being sufficiently stable in the ink to avoid flocculation; and (c) the balance water. The use of a partial chemically-modified, water-soluble colorant (macromolecular chromophore) results in an ink that is both waterfast and non-flocculating.Type: GrantFiled: November 10, 1998Date of Patent: March 7, 2000Assignee: Hewlett-Packard CompanyInventors: Joseph W Tsang, John R Moffatt
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Patent number: 6033466Abstract: The present invention provides a pigment ink which can be produced through a simplified procedure and enables coloring as good as a dye ink. The pigment ink mainly consists of an intercalation compound such as a mineral of the montmorrilonite group and the hydrotalcite group, wherein at least a part of interstitial ions in the intercalation compound is substituted by dye ions having a polarity opposite to that of the interstitial ions. The pigment is dispersed in water together with a dispersion agent and a wetting agent so as to obtain the pigment ink. Remaining interstitial ions not substituted by the dye ions are substituted by hydrophilic ions.Type: GrantFiled: August 4, 1997Date of Patent: March 7, 2000Assignee: Sony CorporationInventor: Kengo Ito
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Patent number: 6030438Abstract: An ink jet ink composition comprising from about 30 to about 90% by weight of water, from about 0.5 to about 30% by weight of a pigment, from about 0.1 to about 10% by weight of a swelling clay, and from about 10 to about 50% by weight of a humectant comprising a polyhydric alcohol or a nitrogen-containing cyclic compound.Type: GrantFiled: December 1, 1998Date of Patent: February 29, 2000Assignee: Eastman Kodak CompanyInventors: David Erdtmann, Lixin Chu, Thomas W. Martin
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Patent number: 6030439Abstract: An ink jet printing method, comprising the steps of:A) providing an ink jet printer that is responsive to digital data signals;B) loading the printer with ink-receptive substrates;C) loading the printer with an ink jet ink composition comprising a carrier, from about 0.5% to about 30% by weight of a pigment and from about 0.1 to about 10% by weight of a swelling clay; andD) printing on an ink-receptive substrate using the ink jet ink in response to the digital data signals.Type: GrantFiled: December 1, 1998Date of Patent: February 29, 2000Assignee: Eastman Kodak CompanyInventors: David Erdtmann, Lixin Chu, Thomas W. Martin
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Patent number: 6020398Abstract: Herein is disclosed a liquid ink jet ink for acetoacetylated poly(vinylalcohol) receivers comprising a carrier, a pigment and a hardener. A method of using the ink is also disclosed.Type: GrantFiled: May 22, 1998Date of Patent: February 1, 2000Assignee: Eastman Kodak CompanyInventors: David Erdtmann, Charles E. Romano, Thomas W. Martin, Joe E. Maskasky
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Patent number: 6017471Abstract: A light-stable colored composition which includes a colorant and a radiation transorber. The colorant, in the presence of the radiation transorber, is adapted, upon exposure of the transorber to specific, narrow bandwidth radiation, to be mutable. The radiation transorber also imparts light-stability to the colorant so that the colorant does not fade when exposed to sunlight or artificial light.Type: GrantFiled: April 23, 1997Date of Patent: January 25, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: John Gavin MacDonald, Ronald Sinclair Nohr
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Patent number: 6001167Abstract: Disclosed are compositions comprising one or more compounds characterized by the formula: ##STR1## wherein each R is independently a hydrocarbyl, hydroxy, hydrocarbyloxy, carboxylic acid, carboxylic acid ester, carboxylic acid amide, sulfonic acid, sulfonic acid amide, imidazolone or nitro group; n is 0, 1 or 2; and M is at least one divalent metal. A process for preparing azo pigment compositions is also disclosed. Paint, ink and plastic compositions containing the foregoing pigments compositions are disclosed.Type: GrantFiled: August 6, 1996Date of Patent: December 14, 1999Assignee: Engelhard CorporationInventor: Amrit Bindra
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Patent number: 6001898Abstract: Electron beam radiation curing of inks on game balls, golf balls and the like is disclosed. Production inks, logo inks and methods for forming production prints and logos on golf balls, game balls and the like are disclosed. To form an electron beam radiation curable water-insoluble production ink, at least an adhesion promoting component is added to an ink base.Type: GrantFiled: March 6, 1998Date of Patent: December 14, 1999Assignee: Acushnet CompanyInventor: Mitchell E. Lutz
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Patent number: 5993524Abstract: An image recording method for forming an image on a recording material, using a recording liquid which contains a coloring agent and a solvent in which the coloring agent is dispersed or dissolved, includes the steps of applying to a recording material a colorless or light colored image recording acceleration liquid containing a surfactant and a viscosity-increasing compound capable of increasing the viscosity of the recording liquid, and depositing the recording liquid imagewise on the recording material by ejecting the recording liquid in the form of droplets onto the recording material, and an image recording apparatus for carrying out the above image recording method is provided.Type: GrantFiled: September 4, 1998Date of Patent: November 30, 1999Assignee: Ricoh Company, Ltd.Inventors: Kiyofumi Nagai, Akio Kojima, Masato Igarashi, Akiko Bannai, Hiroyuki Mochizuki, Takanori Tsuyuki, Ikuko Tanaka, Masayuki Koyano
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Patent number: 5994427Abstract: High performance ink compositions are described and the ink compositions have a novel colorant set which includes a quinacridone, a phthalocyanine and a monoazo compound, and no benzidine based colorants.Type: GrantFiled: November 19, 1997Date of Patent: November 30, 1999Assignee: Lexmark International, Inc.Inventors: William David Kappele, Anna Marie Pearson
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Patent number: 5990201Abstract: A pseudo-plastic aqueous ink for a ball point pen contains at least a pigment, a dispersant, water, a polar solvent and a thickener and further contains 0.05 to 7% by weight of the silicone base surfactant or 0.05 to 5% by weight of a silicone base surfactant and 0.05 to 5% by weight of sodium dialkyl sulfosuccinate based on the whole amount of the ink.Type: GrantFiled: February 12, 1998Date of Patent: November 23, 1999Assignee: Mitsubishi Pencil Kabushiki KaishaInventors: Shigeru Miyazaki, Yoji Takeuchi
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Patent number: 5990202Abstract: Ink-jet inks for ink-jet printing are provided which include a vehicle and a colorant, the colorant encapsulated by or associated with a primer core/shell polymer to form a primer/colorant combination, and the primer/colorant combination, upon printing on a print medium, encapsulated by a durable core/shell polymer. The primer core/shell polymer serves to provide adhesion of the durable core/shell polymer to the colorant and the durable core/shell polymer serves to provide a smear-fast film upon drying of the ink on a print medium. The primer core/shell polymer comprises a hydrophobic core and a hydrophilic shell comprising a polar component, while the durable core/shell polymer comprises a hydrophobic core comprising a low T.sub.g component, which, when homopolymerized, has a glass transition temperature, T.sub.g, below 25.degree. C. and a high T.sub.g component, which, when homopolymerized, has a glass transition temperature above 25.degree. C.Type: GrantFiled: December 24, 1997Date of Patent: November 23, 1999Assignee: Hewlett-Packard CompanyInventors: Khe C Nguyen, Sivapackia Ganapathiappan
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Patent number: 5989325Abstract: A nonaqueous ink composition comprised of a vehicle, colorant, and a hydrophobic gelling component.Type: GrantFiled: March 5, 1998Date of Patent: November 23, 1999Assignee: Xerox CorporationInventors: Guerino G. Sacripante, H. Bruce Goodbrand, Danielle C. Boils
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Patent number: 5990230Abstract: A finely particulate polymer for use in a stencil ink is disclosed which is uniformly dispersible into a binder polymer having a solubility parameter of 11.0 or lower and has an average particle diameter of from 0.1 to 10 .mu.m and a maximum particle diameter of 50 .mu.m or smaller. The finely particulate polymer is highly advantageous in that stencil inks having an appropriate viscosity can be easily obtained with the particulate polymer using the same formulation even when the inks contain different colorants, and that with the particulate polymer, a colorant which has been unusable due to its adverse influence on the storage stability of stencil inks can be used to produce a stencil ink having excellent storage stability by encapsulating the colorant in the individual polymer particles.Type: GrantFiled: May 17, 1996Date of Patent: November 23, 1999Assignees: Dainippon Ink and Chemicals Inc., Riso Kagaku CorporationInventors: Ichiro Muramatsu, Mitsuo Kase, Toshiaki Kano, Hiroshi Matsuda
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Patent number: 5985015Abstract: An ink composition for ink jet recording is provided which can realize a good image even on plain paper, specifically an image having high print density and no significant feather or bleeding. A carbon black having on its surface a cationic group is utilized as a colorant. Further, use of this colorant in combination with a color ink containing an anionic material, for example, an anionic dye can realize a good color image free from color-to-color bleeding.Type: GrantFiled: October 24, 1997Date of Patent: November 16, 1999Assignee: Seiko Epson CorporationInventor: Miharu Kanaya
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Patent number: 5985018Abstract: The present invention relates to coating compositions containing oxidatively drying binders and anti-skinning agents corresponding to formula (Ia) or (Ib) ##STR1## wherein Y.sub.1 and Y.sub.2 are the same or different and represent hydrogen, chlorine or fluorine,X.sup..sym. represents a group corresponding to formula I ##STR2## and R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are the same or different and represent hydrogen, a C.sub.1 -C.sub.10 linear or branched alkyl group that may contain one or more hydroxy groups, an aryl group or a C.sub.5 -C.sub.7 cycloalkyl group.The present invention also relates to anti-skinning agent mixtures containing these anti-skinning agents.Type: GrantFiled: September 17, 1998Date of Patent: November 16, 1999Assignee: Borchers GmbHInventors: Gunter Link, Dirk Edelmann
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Patent number: 5985016Abstract: A process is provided for purifying macromolecular chromophores (MMCs), which are pigments that have been surface-treated to be water-soluble. In the surface treatment, anionic or cationic functional groups are covalently bonded onto the surface, these functional groups have undesirable counter-ions associated with them that adversely affect the properties of ink-jet inks in which the MMCs are incorporated. The purification process comprises: (a) forming an aqueous solution of the macro-molecular chromophore; (b) adding to the aqueous solution an amount of a liquid containing a desirable counter-ion; (c) subjecting the aqueous solution to membrane filtration; and (d) repeating steps (b) and (c). Inks prepared from MMCs that are purified as described above evidence significant improvement in reliability, which includes reduced crusting, reduced kogation, and improved long term ink stability.Type: GrantFiled: October 30, 1997Date of Patent: November 16, 1999Assignee: Hewlett-Packard CompanyInventors: Joseph W. Tsang, John R. Moffatt
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Patent number: 5981624Abstract: A reduced shade paint or ink comprising(a) a base paint or ink comprising a base pigment such as titanium dioxide, a film-forming resin and a non-polar liquid such as white spirits;(b) one or more dispersant which is a phosphate ester of a compound of formula 1 ##STR1## wherein Y is a group RO-- or a group H--(EO).sub.q --;R is C.sub.1-10 -alkyl;m and q are each, independently, from 5 to 50;n is from 5 to 70; and(c) a tinter composition comprising a colored pigment, water and/or a water-miscible solvent such as ethyleneglycol.Type: GrantFiled: November 4, 1997Date of Patent: November 9, 1999Inventors: Dean Thetford, David J. Cartridge
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Patent number: 5976230Abstract: An ink set and method for ink-jet printing using the same are disclosed, the ink set comprising inks comprising an aqueous vehicle and a colorant, the ink set comprising at least two mutually reactive inks, the at least two mutually reactive inks comprising a first and a second ink; and an ink non-reactive with the at least two mutually reactive inks. The present ink set utilizes the advantages of reactive inks while allowing flexibility in the design of the inks and the architecture of the ink-jet printing systems in which they are used.Type: GrantFiled: April 29, 1998Date of Patent: November 2, 1999Assignee: Hewlett-Packard CompanyInventors: Ronald A. Askeland, Mark S. Hickman
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Patent number: 5977208Abstract: The present invention provides a thermal transfer ink ribbon which has good ink transferability and is capable of producing transferred images which are sharp and have high durability. As the main constituent of a binding material of thermally fusible resin, fine particles of low slipperiness which are not softened at a temperature at which the binding material is softened are contained in an ink layer 13 when the ink layer 13 is deposited to produce a thermal transfer ink ribbon 1. Since the thermally fusible resin is used, the durability of transferred images is high. Because the fine particles are contained, the ink layer can be separated sharply from the thermal transfer ink ribbon 1. As the fine particles are of low slipperiness, no slippage occurs between the thermal transfer ink ribbon 1 and a transfer medium. The fine particles of low slipperiness have an average diameter ranging from 0.3 .mu.m to 3.0 .mu.Type: GrantFiled: August 17, 1997Date of Patent: November 2, 1999Assignee: Sony Chemicals CorporationInventors: Yoichi Syutara, Morio Sekiguchi, Satoshi Fujimaki
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Patent number: 5972082Abstract: An aqueous ink composition contains a colorant and a humectant, and has a surface tension .gamma. of less than 50 mN/m when measured by a maximum bubble pressure method at 25.degree. C., with a bubble frequency .nu. of the aqueous ink composition being set at less than 1 Hz, and a surface tension .gamma. of more than 40 mN/m when measured by the maximum bubble pressure method at 25.degree. C., with the bubble frequency .nu. of the aqueous ink composition being set at more than 5 Hz. In addition, an ink-jet printing method for forming ink images on an image-receiving medium has the step of ejecting the above-mentioned aqueous ink composition in the form of droplets according to the recording signals at a recording frequency of 8 kHz or more.Type: GrantFiled: April 29, 1997Date of Patent: October 26, 1999Assignee: Ricoh Company, Ltd.Inventors: Masayuki Koyano, Ikuko Yamada, Akio Kojima, Kiyofumi Nagai, Masato Igarashi, Akiko Konishi, Hiroyuki Mochizuki, Takanori Tsuyuki
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Patent number: 5973027Abstract: Described is an ink for use in ink jet printers, comprising (a) a solvent, which consists at least of approximately 80% of a homopolar, non-watery solvent, (b) a pigment dispersed in the solvent and (c) a copolymer of vinyl-pyrrolidone with one or several long-chain .alpha.-olefins with at least 6 carbon atoms, specifically with 6 to 24 carbon atoms. Properties of the ink are as follows: reduced color bleeding, reduced penetration of coloring agent into the surface of the paper, improved optical density and improved storage stability.Type: GrantFiled: June 18, 1998Date of Patent: October 26, 1999Assignee: Pelikan Produktions AGInventors: Nicole Howald, Peter Drescher
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Patent number: 5972099Abstract: This invention relates to a process for preparing pigment compositions by(a) treating an organic pigment with(1) a sterically hindered and/or bulky primary amine, and(2) a liquid in which the organic pigment is insoluble, and(b) blending the resultant surface-treated pigment composition from step (a) with a pigment derivative of formula (I) ##STR1## wherein Q represents an organic pigment moiety,X is O, S, NR.sup.1, --SO.sub.2 --, --CO--, --Alk--, --Ar--, or combinations thereof,Y is --OR.sup.2, --NR.sup.3 R.sup.4, or Het,Alk is C.sub.1 -C.sub.5 alkylene, C.sub.2 -C.sub.5 alkenylene, or C.sub.4 -C.sub.5 alkadienylene, or substituted derivatives thereof,Ar is arylene,R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.7 -C.sub.16 aralkyl, or C.sub.6 -C.sub.10 aryl,Het is a heterocycle, andn is 1 to 4.Type: GrantFiled: December 17, 1997Date of Patent: October 26, 1999Assignee: Bayer CorporationInventors: Ibraheem T. Badejo, Daphne J. Rice, Michael J. Greene
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Patent number: 5973026Abstract: An aqueous ink composition containing polymer, colorant, and zwitterionic component.Type: GrantFiled: February 2, 1998Date of Patent: October 26, 1999Assignee: Xerox CorporationInventors: Patricia A. Burns, Marcel P. Breton, Yvan Gagnon, David N. MacKinnon
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Patent number: 5973062Abstract: An ink composition for publication gravure printing is provided with a colored polyurethane oligomer dissolved in the solvent component of the ink.Type: GrantFiled: December 10, 1998Date of Patent: October 26, 1999Assignee: Milliken & CompanyInventors: Philip G. Harris, Patrick D. Moore
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Patent number: 5969003Abstract: An ink that contains a vehicle, a colorant and a sulphonated polyester terminated with acrylic acid groups, methacrylic acid groups, or mixture thereof.Type: GrantFiled: February 2, 1998Date of Patent: October 19, 1999Assignee: Xerox CorporationInventors: Daniel A. Foucher, Guerino G. Sacripante, Raymond W. Wong, Marcel P. Breton
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Patent number: 5968242Abstract: A molecular sieve, which contains in all, or only in some, of its cavities colorant molecules as well as a modifier which is covalently bound to said molecular sieve and which reduces its pore diameter, a process for its preparation as well as its use as pigment for coloring high molecular weight organic materials, preferably biopolymers and plastic materials, glasses, ceramic products, for formulations of decorative cosmetics, for the preparation of paint systems, preferably automotive lacquers, printing inks, dispersion paints and color filters as well as materials comprising the novel molecular sieves.Type: GrantFiled: December 19, 1997Date of Patent: October 19, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Wolfgang Holderich, Nadja Rohrlich, Laurent Chassot
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Patent number: 5968243Abstract: A modified carbon product is described which comprises carbon having attached at least one organic group wherein the organic group comprises a) at least one aromatic group or a C.sub.1 -C.sub.12 alkyl group, and b) a group having the formula -AG-Sp-LG-Z, wherein AG is an activating group, Sp is a spacer group, LG is a leaving group, and Z is a counterion, and wherein the aromatic or the C.sub.1 -C.sub.12 alkyl group is directly attached to the carbon, and wherein the organic group is present in any amount. The present invention also relates to ink and coating compositions comprising these modified carbon products.Type: GrantFiled: August 6, 1998Date of Patent: October 19, 1999Inventors: James A. Belmont, Curtis E. Adams
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Patent number: 5964929Abstract: A process for the preparation of an ink concentrate which comprises(a) milling a crude metal phthalocyanine to reduce the particle size thereof, thereby forming a modified crude metal phthalocyanine and(b) kneading a mixture of the modified crude metal phthalocyanine together with an ink vehicle comprising one or more ink solvents, the metal phthalocyanine being present in an amount of 20 to 80% by weight of the kneaded mixture, to give an ink concentrate containing the metal phthalocyanine in pigmentary form dispersed in the ink vehicle.Type: GrantFiled: November 13, 1996Date of Patent: October 12, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Robert Langley, Paul Kerwin, Arthur Stark Walls, Kenneth Grant Dykes
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Patent number: 5965633Abstract: A lithographic printing ink contains a lithographic varnish containing an alkali soluble or dispersible binder material which is the reaction product of an acid functional hard resin with a fatty ester oil and/or an alkyd resin.Type: GrantFiled: January 6, 1998Date of Patent: October 12, 1999Assignees: S Coates Lorilleux S.A., Deluxe CorporationInventor: Michel Paul Gilles Revol
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Patent number: 5962552Abstract: Described are an ink composition comprising water, a colorant and acrylic silicone resin particles having alkoxysilyl groups; and an image recording method comprising discharging the droplet of an ink composition from a recording head to record an image on a substrate, wherein an ink composition comprising water, a colorant and acrylic silicone resin particles having alkoxysilyl groups is used as the ink composition. According to the present invention, 1) blotting of the ink composition on the substrate can be prevented, 2) an image which has water resistance and has a markedly high image density can be obtained, 3) an image does not become sticky even under a high environmental temperature, and 4) there is no problem in safety.Type: GrantFiled: February 21, 1997Date of Patent: October 5, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Takeshi Mikami, Yuzuru Fukuda
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Patent number: 5958124Abstract: Disclosed is a rotogravure or flexographic printing ink composition, comprising(A) an ink comprising a pigment dispersed in a fluid vehicle, said vehicle comprising resin incorporated into an aqueous or non-aqueous solvent or a mixture of such solvents; and(B) a wear reducing amount of a metal dihydrocarbyl dithiophosphate of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each independently hydrocarbyl groups containing from 3 to about 30 carbon atoms, M is a metal and a is an integer equal to the valence of M.Type: GrantFiled: April 15, 1998Date of Patent: September 28, 1999Assignee: The Lubrizol CorporationInventors: John S. Perz, Steven L. Rotz
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Patent number: 5954870Abstract: A composition of copper phthalocyanines containing, on average, from 0.1 to 3 methyl groups per phthalocyanine nucleus. The composition is suitable for the coloration of paints and plastics materials.Type: GrantFiled: June 7, 1995Date of Patent: September 21, 1999Assignee: Zeneca LimitedInventors: Peter Kingsley Davies, John David Schofield, John Michael McCarthy
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Patent number: 5948151Abstract: A W/O emulsion ink, which is superior in emulsion stability, causes no softening or separation even after stored for a long time, and can always provide prints of uniform quality, is provided. The emulsion ink has an oil phase and a water phase, in which said water phase has a pH of 6.0 to 12.0, preferably 7.0 to 9.0 at 23.degree. C. The emulsion ink may contain a water-insoluble colorant in the water phase and/or the oil phase. Preferably, the water phase has a pH buffer action.Type: GrantFiled: December 8, 1997Date of Patent: September 7, 1999Assignee: Riso Kagaku CorporationInventors: Ryuta Ono, Sadanao Okuda
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Patent number: 5948150Abstract: This invention concerns a composition for use as an additive in an ink composition for an inkjet printer or a laserjet printer or as a coating on paper or plastic substrate used in an inkjet or laserjet printer which improves lightfastness and durability properties of the ink, which additive composition comprises: (A) at least one ultraviolet absorber, (B) at least one free radical inhibitor, (C) at least one antioxidant, and (D) at least one liquid carrier selected from the group consisting of water, organic liquid or combinations thereof. These compositions result in a print image that is more colorfast and durable than those of the conventional art.Type: GrantFiled: May 5, 1998Date of Patent: September 7, 1999Assignee: Hewlett-Packard CompanyInventors: An-Chung Robert Lin, Howard S. Tom
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Patent number: 5928418Abstract: An asphalt emulsion comprising water, asphalt, (A) an emulsifier selected from the group consisting of specific aliphatic amines, aminated lignins, imidazolines having a hydrocarbon group having 7 or more carbon atoms, and amidobetaines having a hydrocarbon group having 7 or more carbon atoms, (B) a polyphenolic compound, and (C) at least one member selected from the group consisting of anionic polumeric dispersants, hydroxycarboxylic acids and/or (D) at least one member selected from the group consisting of saccharides, sugar alcohols and polyhydric alcohols, which is excellent in storage stanility, mixability with aggregate and low foaming properties of the emulsion itself, in adherence of the products of breaking thereof to aggregate, and in stripping resistance of the construction executed by the use of the emulsion.Type: GrantFiled: August 4, 1997Date of Patent: July 27, 1999Assignee: Kao CorporationInventors: Ryoichi Tamaki, Katsuhiko Asamori, Hirotaka Sasaki, Hitoshi Funada, Takao Taniguchi