Rosin, Natural Resin Or Derivative, E.g., Shellac, Dammar, Colophony, Turpentine, Etc. Patents (Class 106/500)
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Patent number: 5660623Abstract: The present invention provides a method of reducing the tendency of a resinated pigment product to self-heat which comprises treating an aqueous slurry of the pigment with a compound of a multivalent metal or metalloid under conditions such as will precipitate an insoluble compound of the metal or metalloid on the pigment, and then isolating the treated pigment.Type: GrantFiled: February 28, 1995Date of Patent: August 26, 1997Assignee: Ciba-Geigy CorporationInventors: Ian Alexander Macpherson, John Aldred Nimmo, Brian Tuck
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Patent number: 5622548Abstract: The present invention provides a water-in-oil emulsion ink comprising an oil phase and a water phase, the oil phase comprising an encapsulated colorant, an oil phase oil, a surface active agent, and a film-forming component, and the water phase comprising water. The present invention also provides an encapsulated colorant comprising a colorant having a particle size of from about 0.01 microns to about 25 microns, a binder resin, a saturated oil, a viscosity adjusting agent, and an adhesion promoter. The present invention also provides an improved process of digital duplicating wherein the improvement comprises using the emulsion ink of the present invention.Type: GrantFiled: February 13, 1996Date of Patent: April 22, 1997Assignee: MICAP Technology Corp.Inventors: Wan K. Zou, Clement N. Onyenemezu
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Patent number: 5584922Abstract: Disclosed is a process for coloring high-molecular-weight coatings and ink systems which comprises uniformly dispersing an effective pigmenting amount of a stir-in pigment in the coating or ink system; wherein the stir-in pigment is an organic pigment crude consisting essentially of non-platelet-shaped particles having an average particle size of from 0.5 to 25 .mu.m and/or a pigment composition consisting essentially of an organic pigment having an average particle size of from 0.01 to 25 .mu.m and inorganic filler pigment.Type: GrantFiled: September 14, 1994Date of Patent: December 17, 1996Assignee: Ciba-Geigy CorporationInventor: Fridolin Babler
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Patent number: 5585189Abstract: The present invention discloses a pigment dispersion composition for depositing a multiplicity of pores existing in anodic oxide films formed on a surface of an aluminum or aluminum alloy material by way of electrophoresis for coloration, the pores being preliminarily enlarged to have a diameter of 50 nm to 250 nm. The pigment dispersion composition comprises water, a pigment dispersant and a pigment. The pigment dispersed in the pigment dispersion composition has a median particle size of not greater than 250 nm in a particle-size distribution thereof with not greater than 30% of the pigment particles being impassable through a sieve having a mesh size of 300 nm. The pigment dispersion composition is useful for coloration of the anodic oxide films, and has excellent repeated-coloration characteristics.Type: GrantFiled: May 26, 1995Date of Patent: December 17, 1996Assignee: Sakura Color Products CorporationInventors: Hiroshi Inoue, Shigeyasu Inoue, Seishiro Ito
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Patent number: 5556454Abstract: Toluene-soluble modified natural resin esters suitable as binder resins in ground pigments and printing inks for halftone gravure printing prepared by reacting at least one compound from each of the following substance groups A) to D)A) natural resins and natural resin acids,B) monocyclic and polycyclic phenols which are polyfunctional towards oxo compounds,C) aldehydes and aldehyde acetals,D) alcohols having at least two hydroxyl groups, and, optionally, further compounds selected from the following substance groups:E) .alpha.,.beta.-ethylenically unsaturated carboxylic acids and their anhydrides,F) fatty acids and fatty acid esters,G) ethylenically unsaturated monomers,H) ethylenically unsaturated hydrocarbon resins in the presence ofI) lithium compoundsat a temperature of from 100.degree. to 300.degree. C. with elimination of water.Type: GrantFiled: February 1, 1995Date of Patent: September 17, 1996Assignee: Hoechst AktiengesellschaftInventor: Albert Bender
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Patent number: 5525152Abstract: The present invention relates to a process for coloring polymeric materials by dyeing or pigmenting said polymeric materials with a pigment salt having the formula (I): ##STR1## and tautomeric forms thereof, wherein M.sup.n+ is an n-valent cation.Type: GrantFiled: May 1, 1995Date of Patent: June 11, 1996Assignee: Bayer AktiengesellschaftInventors: Peter Roschger, Stephan Michaelis, Gunther Franke, Bernd Woost, Bernd Kaletta
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Patent number: 5484477Abstract: A coatable composition suitable for reducing dust generation during processing of granular materials consists essentially of a tackifier, an organic oil, and an adhesion agent, the tackifier consisting essentially of an organic material having a glass transition temperature of no less than about 120.degree. C. and a diluent present in sufficient amount to give the tackifier a kinematic viscosity ranging from about 3,000 to about 5,000 centistokes at 100.degree. C. The tackifier is preferably present in the composition at about 0.5 to about 2.0 weight percent of the total weight of the composition, and the adhesion agent is preferably present at about 0.5 to about 5.0 weight percent of the total weight of the composition, with the balance being organic oil.Type: GrantFiled: October 7, 1994Date of Patent: January 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Billy L. George, Stefan A. Babirad, Delmon H. Penny
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Patent number: 5472498Abstract: A lightweight aggregate comprising free-flowing particles of a polymer foam coated with a binding agent having dispersed therein, in total, at least 10% by weight thereof of one or more transition metal ions.Type: GrantFiled: May 10, 1994Date of Patent: December 5, 1995Assignee: BST Holdings PTY. LimitedInventors: Neville C. Stephenson, Gary P. Norton
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Patent number: 5389141Abstract: Pigment compositions comprisinga) at least one pyrrolo[3,4-c]pyrrole pigment of the formula ##STR1## in which A and B, independently of one another, are isocyclic or heterocyclic aromatic radicals, and D is an oxygen or sulfur atom, andb) from 1 to 100% by weight, based on the pigment, of a nitroxyl compound or of an acid-addition salt thereof.These pigment compositions are distinguished by excellent light stability and weathering resistance.Type: GrantFiled: December 22, 1993Date of Patent: February 14, 1995Assignee: Ciba-Geigy CorporationInventor: Laurent Chassot
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Patent number: 5378276Abstract: Diketopyrrolopyrroles of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently of one another hydrogen, chloro, C.sub.1 -C.sub.4 alkyl, methoxy, phenyl, cyano or a group--X.sub.1 --V--X.sub.2 --T--A,in which at least one of R.sub.1, R.sub.2, R.sub.3 or R.sub.Type: GrantFiled: February 17, 1994Date of Patent: January 3, 1995Assignee: Ciba-Geigy CorporationInventors: Laurent Chassot, Gary Wooden
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Patent number: 5376169Abstract: There is disclosed a recording solution for ink which is excellent in dispersibility, keeping quality, stability, fixing properties and able to effect printing without bleeding and opposite-side bleeding. The recording solution for ink jetting comprises at least:a nonaqueous solvent,a pigment,a resin andat least one of additives selected from the group consisting of alginates and borneols.Type: GrantFiled: April 15, 1993Date of Patent: December 27, 1994Assignee: Minolta Camera Kabushiki KaishaInventors: Hideo Hotomi, Hideaki Ueda
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Patent number: 5366546Abstract: A process for the production of a pigment composition, comprising combining a) a dispersion of one or more non-polar components of a surface coating vehicle, or a non-polar additive for the pigment composition in an aqueous solution of a salt of a polar pigment additive, with b) an aqueous slurry of a pigment or a precursor thereof, before, during or after the synthesis of the pigment; and then isolating the pigment composition so obtained.Type: GrantFiled: November 17, 1992Date of Patent: November 22, 1994Assignee: Ciba-Geigy CorporationInventors: James M. McCrae, Anne M. Keirs, John A. Nimmo
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Patent number: 5362315Abstract: The invention relates to pigments whose color depends on the viewing angle, their preparation and use.These pigments comprise oriented three-dimensionally crosslinked substances of liquid-crystalline structure having a chiral phase and, if desired, further dyes and pigments, the further dyes and pigments if present not serving as base for the oriented three-dimensionally crosslinked liquid-crystalline substances having a chiral phase.Type: GrantFiled: November 22, 1993Date of Patent: November 8, 1994Assignee: Consortium fur elektrochemische Industrie GmbHInventors: Christoph Muller-Rees, Robert Maurer, Jurgen Stohrer, Franz-Heinrich Kreuzer, Silvia Jung, Franz Csellich
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Patent number: 5348580Abstract: Pigment compositions comprisinga) at least one organic pigment selected from the group consisting of diketopyrrolopyrroles, azo pigments quinacridones, quinophthalones, phthalocyanines, indanthrones, flavanthrones, pyranthrones, anthraquinones, perylenes, dioxazines, perinones, thioindigo, isoindolines isoindolinones and metal complexes andb) 0.01 to 100% by weight, based on the pigment, of a condensation or addition polymer, the recurring molecular unit of which contains at least one radical containing a nitroxyl or hydroxylamino group or is substituted by a side group containing a nitroxyl or hydroxylamino group, and copolymers thereof with one another or with nitroxyl- or hydroxylamine-free components.These pigment compositions are distinguished by outstanding resistance to light and weathering.Type: GrantFiled: August 25, 1993Date of Patent: September 20, 1994Assignee: Ciba-Geigy CorporationInventor: Laurent Chassot
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Patent number: 5346545Abstract: Pigment compositions comprisinga) at least one organic pigment chosen from the group comprising azo pigments, quinacridones, phthalocyanines, indanthrones, flavanthrones, pyranthrones, anthraquinones, perylenes, dioxazines, perinones, thioindigo, isoindolines, isoindolinones and metal complexes andb) 1 to 100% by weight, based on the pigment, of a nitroxyl compound consisting of at least one unsubstituted or substituted 5-, 6- or 7-membered heterocyclic ring containing a divalent group of the formula ##STR1## in which R.sub.1 and R.sub.2 independently of one another are methyl, ethyl or phenyl, or together form a 4- to 12-membered aliphatic ring,L is an aromatic radicaland Y is O.,or of an acid addition salt thereof.These pigment compositions are distinguished by an outstanding resistance to light and weathering.Type: GrantFiled: March 5, 1993Date of Patent: September 13, 1994Assignee: Ciba-Geigy CorporationInventor: Laurent Chassot
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Patent number: 5340394Abstract: An aqueous dispersed pigmented tinting concentrate particularly useful for tinting aqueous latex paints or non-aqueous solvent paints, the tinting concentrate comprising a low molecular weight polyethylene glycol polyether vehicle having a number average molecular weight between about 200 and 700 in conjunction with at least about 2% by weight non-ionic alkyl polyglycoside surfactant based on the total weight of pigment in the tinting composition.Type: GrantFiled: June 21, 1993Date of Patent: August 23, 1994Assignee: The Glidden CompanyInventor: Abmed A. Elsamanoudi
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Patent number: 5336313Abstract: The physical and chemical properties of a pigment-containing, water-based lacquer dispersion are improved by adding thereto a partial ester of an oligoglycerol obtained by condensation of 2 to 20 moles of glycerol with a C.sub.2 -C.sub.18 fatty acid. The partial ester may be ethoxylated and/or propoxylated, and the fatty acid may be hydroxy substituted.Type: GrantFiled: December 16, 1991Date of Patent: August 9, 1994Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Reinhard Bunte, Wolfgang Gress, Ulrich Nagorny, Manfred Gorzinski
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Patent number: 5308395Abstract: Liquid concentrates for incorporation into polymeric resins are described that are storage stable and resistant to settling or viscosity changes which comprise:(I) a vehicle comprising:(A) at least one organic rosin material;(B) at least one surfactant; and(II) at least one colorant or additive.The liquid concentrates of the present invention have a body or consistency that allow them to readily flow by gravity and are further characterized by a substantially uniform viscosity. The liquid color concentrates of the present invention also are compatible with a wide variety of plastics and facilitate a reduction in processing deficiencies such as screw-slippage, water carry-over and uneven flow to the pump inlet.Type: GrantFiled: June 4, 1992Date of Patent: May 3, 1994Assignee: Ferro CorporationInventors: Neil A. Burditt, Richard L. Abrams
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Patent number: 5308646Abstract: Means, methods and compositions for simulating natural desert varnish. A solution containing soluble metallic acetate salts selected from the group consisting of iron (II), manganese(II) and mixtures thereof and indigenous clay when appropriate is sprayed on distressed or abused natural or artificial rock to produce a preselected patina which is compatible to the indigenous area.Type: GrantFiled: August 23, 1990Date of Patent: May 3, 1994Assignee: Arizona Board of RegentsInventor: Carleton B. Moore
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Patent number: 5306342Abstract: Process for the production of a flocculation-resistant pigment, comprising after-treating an arylamide pigment which has been subjected to a dyestuff treatment, the after-treatment comprising a further treatment of the dyestuff-treated arylamide pigment with an arylamide yellow dyestuff, under alkaline conditions at elevated temperature.Type: GrantFiled: March 30, 1993Date of Patent: April 26, 1994Assignee: Ciba-Geigy CorporationInventor: John A. Stirling
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Patent number: 5266105Abstract: The present invention relates to an antifouling coating composition comprising:(a) a vehicle comprising a hydrophobic resin (A), a slightly soluble resin (B) and a hydrophilic resin (C), and(b) a copper alloy powder as an antifouling agent comprising from 3 to 25% by weight of nickel and/or manganese, from 0.1 to 1.5% by weight of iron and the rest being copper, and(c) if necessary, one of zinc oxide, germanium oxide and a flake pigment.Type: GrantFiled: January 29, 1992Date of Patent: November 30, 1993Assignees: Dai Nippon Toryo Co., Ltd., Mitsubishi Materials CorporationInventors: Kazuyoshi Tsuneta, Tohru Taki, Kenji Kurosawa, Junya Ohe, Yasuzo Uchida
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Patent number: 5248335Abstract: A pigment composition which shows a low viscosity even when prepared into a high-concentration dispersion and is therefore free from a decrease in gloss and tinting strength, the composition containing 100 parts by weight of a monoazo lake pigment obtained from .beta.-oxynaphthoic acid or .beta.-naphthol as a coupler component and an aromatic diamine having a water-soluble group as a diazo component, and 0.3 to 20 parts by weight of at least one compound selected from the group consisting of compounds of the formulae (1), (2) and (3), ##STR1## wherein X is independently a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, carboxyl, a nitro group, an amino group or hydroxyl, and n is an integer of 0 to 7; and a pigment dispersion containing the above pigment composition.Type: GrantFiled: February 19, 1992Date of Patent: September 28, 1993Assignee: Toyo Ink Manufacturing Co., Ltd.Inventor: Yoshitaka Ohtomo
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Patent number: 5242490Abstract: Veneer surface reactive polyisocyanates can be used in combination with polyhydroxy functional polymers, preferably nitrocellulose, and isocyanate reaction catalyzing organo tin compounds in low solids film-forming formulations as a substitute for standard wash coat and/or sealer coat compositions in furniture finishing schedules to provide veneer finishes with markedly enhanced resistance to checking.Type: GrantFiled: June 28, 1991Date of Patent: September 7, 1993Assignee: Lilly Industries, Inc.Inventor: James W. Maner
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Patent number: 5208319Abstract: The invention is ink pigment grinding resins for waterbased printing inks which are produced by the amidation of maleated or fumarated rosin with a polyamine containing a primary amine group to produce the water soluble polyaminoamidoimide resin. The resulting rosin resin may be employed over a wide range of pH values to produce stable low or high viscosity grind bases.Type: GrantFiled: June 25, 1992Date of Patent: May 4, 1993Assignee: Westvaco CorporationInventor: Peter Schilling
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Patent number: 5194088Abstract: A process for converting crude pigments into pigmentary form wherein the crude pigment is premilled, then contacted with a polar solvent at temperatures below 50.degree. C., with or without the presence of particle growth inhibitors, and finally isolated.Type: GrantFiled: July 8, 1991Date of Patent: March 16, 1993Assignee: Ciba-Geigy CorporationInventors: Fridolin Babler, Edward E. Jaffe
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Patent number: 5190583Abstract: An aqueous coating composition is provided which reflects light, especially UV radiation, and can be colored as desired. It is prepared from a synthetic resin dispersion and inorganic pigments having a particle size ranging between 7 and 10 nm, with the exception of carbon black.Type: GrantFiled: June 24, 1992Date of Patent: March 2, 1993Assignee: Transfer-Electric Gesellschaft FurInventors: Tankred Menzel, Hermann Nickel
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Michael addition aminopolyester resins as dilution extenders for zinc-containing metal resinate inks
Patent number: 5180424Abstract: The invention is a printing ink comprising a zinc-containing metal resinate complexed with aminopolyester resins and the process for preparing them. In particular, the invention relates to aminopolyester resins having properties which make them useful as resinate dilution extenders in formulating vehicles for gravure and intaglio printing inks.Type: GrantFiled: May 18, 1992Date of Patent: January 19, 1993Assignee: Westvaco CorporationInventor: G. Frederick Hutter -
Patent number: 5157067Abstract: Liquid concentrates for incorporation into polymeric resins are described that are storage stable and resistant to settling or viscosity changes which comprise:(I) a vehicle comprising:(A) at least one organic rosin material;(B) at least one surfactant; and(II) at least one colrant or additive.The liquid concentrates of the present invention have a body or consistency that allow them to readily flow by gravity and are further characterized by a substantially uniform viscosity. The liquid color concentrates of the present invention also are compatible with a wide variety of plastics and facilitate a reduction in processing deficiencies such as screw-slippage, water carry-over and uneven flow to the pump inlet.Type: GrantFiled: April 16, 1991Date of Patent: October 20, 1992Assignee: Ferro CorporationInventors: Neil A. Burditt, Richard L. Abrams
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Patent number: 5151218Abstract: Phosphoric acid esters and their salts corresponding to the formula (I): ##STR1## wherein R represents an aliphatic, cycloaliphatic and/or aromatic moiety having no Zerewitinoff hydrogen, containing at least one ether oxygen atom (--O--) and at least one carboxylic acid ester group (--COO--) and/or urethene group (--NAOO--), and having an average molecular weight M.sub.n of 200 to 10,000, wherein the hydrogen atoms may be partially replaced by halogen atoms, and wherein the ratio of the number of ether oxygen atoms to the number of carboxylic acid ester groups and/or urethane groups in the molecule (or in every group R) is in the range from 1:20 to 20:1, and n represents 1 or 2. A method for preparing such phosphoric acid esters and salts and the use of such phosphoric acid esters or salts as dispersants or dispersing aids is also disclosed.Type: GrantFiled: January 3, 1992Date of Patent: September 29, 1992Assignee: BYK-Chemie GmbHInventors: Karl-Heinz Haubennestel, Wolfgang Pritschins
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Patent number: 5120359Abstract: The present invention provides:(1) an ink composition erasable with a rubber eraser, the composition comprising 1 to 50% of a pigment, 3 to 50% of a resin having a film-forming temperature of 40.degree. C. or higher, 0.5 to 50% of an organic solvent and 7 to 60% of water, based on the weight of the ink composition;(2) an ink composition erasable with a rubber eraser, the composition comprising 2 to 90% of a pigment coated with a resin having a film-forming temperature of 40.degree. C. or higher, 0.5 to 30% of an organic solvent and 0.5 to 30% of water, based on the weight of the ink composition; and(3) an ink composition erasable with a rubber eraser, the composition comprising 2 to 90% of a pigment coated with a resin having a film-forming temperature of 40.degree. C. or higher, 1.5 to 55% of an emulsion (calculated as solids), 0.5 to 30% of an organic solvent and 4.0 to 60% of water, based on the weight of the ink composition.Type: GrantFiled: October 26, 1989Date of Patent: June 9, 1992Assignee: Sakura Color Products CorporationInventors: Shingo Uzukawa, Yukito Shoji
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Patent number: 5108509Abstract: A pigment is formed in an aqueous slurry. A mixture of the pigmented slurry and a vehicle is subjected to high speed, high shear mixing action. The water is forced out of the solid pigment and replaced by the vehicle forming bead-like spherical conglomerates. The conglomerates grow into clusters in the dispersing phase during the mixing process. The clusters are filtered from the dispersing water phase forming a flushed pigment which is used for dispersion in ink systems.Type: GrantFiled: May 8, 1990Date of Patent: April 28, 1992Assignee: Roma Color, Inc.Inventors: John S. Booth, Edward W. Makuch
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Patent number: 5066331Abstract: A water-soluble resin for packaging ink comprising the reaction product of fumarated or maleated rosin and a compound containing two secondary amine groups is disclosed. A resin with a higher softening point may be obtained by substituting a dicarboxylic acid, such as adipic acid or isophathalic acid, for part of the fumarated or maleated rosin. Water varnishes, pigment bases, and water based inks containing the resin are disclosed.Type: GrantFiled: December 21, 1989Date of Patent: November 19, 1991Assignee: Westvaco CorporationInventor: G. Frederick Hutter
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Patent number: 5041163Abstract: A pigment is formed in an aqueous slurry. A mixture of the pigmented slurry and a vehicle is subjected to high speed, high shear mixing action. The water is forced out of the solid pigment and replaced by the vehicle forming bead-like spherical conglomerates. The conglomerates grow into clusters in the dispersing phase during the mixing process. The clusters are filtered from the dispersing water phase forming a flushed pigment which is used for dispersion in ink systems.Type: GrantFiled: June 8, 1989Date of Patent: August 20, 1991Assignee: Roma Color, Inc.Inventors: John S. Booth, Edward W. Makuch
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Patent number: 5024698Abstract: Monoazo pigments are provided which have improved properties achieved by incorporating certain azomethine compounds. The pigment compositions are prepared by reacting a primary amine-terminated alkylene oxide polymer and an acetoacetanilide to form an azomethine coupler and subsequently preparing the monoazo pigment composition by reacting the desired diazo component and coupling component in the presence of the azomethine coupler so as to form an azomethine composition of matter and the desired pigment.Type: GrantFiled: March 22, 1990Date of Patent: June 18, 1991Assignee: Sun Chemical CorporationInventors: Russell J. Schwartz, Manuel Z. Gregorio
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Patent number: 4990187Abstract: Gravure base inks are prepared by flushing an aqueous pigment with a hydrocarbon solvent solution of a major amount of calcium resinate or magnesium resinate and a minor amount of zinc resinate in the presence of a C.sub.8 -C.sub.24 fatty acid amine or C.sub.8 -C.sub.24 fatty acid quaternary ammonium salt. The solvent to metal ratio is at least 40:60 and the pH is in the range of 4 to 10.Type: GrantFiled: October 10, 1989Date of Patent: February 5, 1991Assignee: Sun Chemical CorporationInventors: Chi K. Dien, Daniel J. Carlick
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Patent number: 4944806Abstract: Pigmentary Opal Sulfate is made by combining triphenylpararosaniline (Opal Blue) with a dilute acid. The pigmentary Opal Sulfate is a substitute for Alkali Blue. The most preferred process for producing the pigmentary Opal Sulfate involves drowning a solution of Opal Blue in a highly agitated solution of dilute sulfuric acid.Type: GrantFiled: December 28, 1987Date of Patent: July 31, 1990Assignee: BASF CorporationInventors: Anand S. G. Sharangpani, Floyd G. Spence, Brian D. Teunis
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Patent number: 4921543Abstract: A process for the preparation of a liquifier for mineral binding agents comprising condensing a member of a group consisting of naphthalene sulfonic acid and alkyl naphthalene sulfonic acids with formaldehyde or a formaldehyde precursor in a highly acidic solution until a viscosity of 4,000 to 8,000 mPas is reached, adding water periodically to reduce the viscosity of the mixture until the condensation is complete and neutralizing the mixture to obtain a water-soluble condensation product and the liquifier produced thereby and mineral binding agents containing the same.Type: GrantFiled: August 24, 1988Date of Patent: May 1, 1990Assignee: Rutgerswerke AGInventors: Jafar Omran, Arnold Alscher
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Patent number: 4885033Abstract: A pigment composition, suitable for use in modern offset and letter press inks, comprising:(A)(a) a pigment derived from (i) acetoacet-2,4-xylidide coupled on to tetrazotized 3,3'-dichlorobenzidine or from (ii) the mixed coupling of two or more of acetoacetanilide, acetoacet-2-anisidide, acetoacet-2-toluidide, acetoacet-2-chloranilide, acetoacet-2,4-xylidide and acetoacet-2,5-dimethoxy-4-chloranilide on to tetrazotized 3,3'-dichlorobenzidine;(b) a dyestuff derived from coupling acetoacetanilide, acetoacet-2-toluidide, acetoacet-2-chloranilide or acetoacet-2,4-xylidide on to tetrazotized benzidine-2,2'-disulfonic acid; and optionally(c) a resin or resinous materialand(B)(a) a pigment derived from coupling one or more of acetoacetanilide, acetoacet-2-anisidide, acetoacet-2-toluidide, acetoacet-4-toluidide, acetoacet-2-chloranilide, acetoacet-2,4-xylidide and acetoacet-2,5-dimethoxy-4-chloranilide on to one or both of tetrazotized 3,3'-dichlorobenzidine and tetrazotized 3,3'-dimethoxybenzidine; and(b) an aliphatType: GrantFiled: September 23, 1988Date of Patent: December 5, 1989Assignee: Ciba-Geigy CorporationInventors: John B. Blackburn, Alexander Hamilton
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Patent number: 4846893Abstract: A process for producing a surface treated pigment wherein pigment particles are dispersed in a solution of a water soluble high polymer having radical generation sites to adsorb the water soluble high polymer on the surfaces of the pigment particles, adding a vinyl monomer to the resulting aqueous liquid dispersion of the pigment particles subjected to the adsorption treatment and polymerizing in the presence of a polymerization initiator, if desired, to form a polymer layer on the surfaces of the pigment particles. Formation of the white polymer particles composed only of polymer can be prevented and dispersion stability can be improved.Type: GrantFiled: February 3, 1988Date of Patent: July 11, 1989Assignee: Fuji Xerox Co., Ltd.Inventors: Yutaka Akasaki, Naoya Yabuuchi, Tatsuro Ohki
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Patent number: 4793863Abstract: Organic pigments especially suitable in the manufacture of printing inks. The pigments are prepared with relatively high concentrations of resins or rosins which are reacted with controlled amounts of an aluminum salt to obtain aluminum resinates or aluminum rosinates. The resulting resinated pigmentary compositions are characterized by high strength, better transparency, good rheology without loss of coloristic properties.Type: GrantFiled: October 23, 1987Date of Patent: December 27, 1988Assignee: Sun Chemical CorporationInventors: Kalpathy R. Anantharaman, Susan T. Soward, Wilmeth M. Smoot
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Patent number: 4789404Abstract: A process for preparing a soft textured high strength Alkali Blue pigment toner comprising preparing an initial mixture from an alkali metal hydroxide, Alkali Blue pigment, resin, oil or varnish, free fatty acid and water and adding a mineral acid to said mixture to precipitate the pigment product.Type: GrantFiled: September 17, 1986Date of Patent: December 6, 1988Assignee: BASF CorporationInventors: Doreswamy R. Iyengar, James J. Krikke
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Patent number: 4765841Abstract: An organic pigment dispersion in a non-aqueous medium is prepared directly from an aqueous slurry containing 0.1-20% by weight of the pigment by mixing the aqueous slurry with the non-aqueous medium under vigorous agitation and subsequently isolating the organic pigment dispersion from the residual aqueous phase.A substantial part of water in the resulting pigment dispersion can be removed by passing the organic pigment dispersion in the non-aqueous medium over a series of surfaces, the surface material thereof having different affinity for water and the non-aqueous medium, respectively, and then removing water and pigment dispersion in the non-aqueous medium, respectively, from respective surfaces.Type: GrantFiled: October 9, 1986Date of Patent: August 23, 1988Assignee: Kemisk Vaerk Koge A/SInventors: Arne Vinther, Steffen C. Olsen, Bjorn E. H. Larsen, Elun S. Madsen, Bjorn Madsen
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Patent number: 4756759Abstract: A method for preparing a flexographic or gravure printing ink in dry, powdered form. The method comprises comminuting a blend of all ink components, the solvents excluded, under oxygen free and temperature controlled conditions. The powder obtained is homogeneous, dust free, solid, dry and free-flowing and provides a ready-for-use printing ink on simply stirring with the normally used solvents.Type: GrantFiled: March 17, 1987Date of Patent: July 12, 1988Assignee: SICPA Holding S.A.Inventors: Albert Amon, Haim Bretler