Rosin, Natural Resin Or Derivative, E.g., Shellac, Dammar, Colophony, Turpentine, Etc. Patents (Class 106/500)
  • Patent number: 5660623
    Abstract: 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: Grant
    Filed: February 28, 1995
    Date of Patent: August 26, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Ian Alexander Macpherson, John Aldred Nimmo, Brian Tuck
  • Patent number: 5622548
    Abstract: 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: Grant
    Filed: February 13, 1996
    Date of Patent: April 22, 1997
    Assignee: MICAP Technology Corp.
    Inventors: Wan K. Zou, Clement N. Onyenemezu
  • Patent number: 5584922
    Abstract: 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: Grant
    Filed: September 14, 1994
    Date of Patent: December 17, 1996
    Assignee: Ciba-Geigy Corporation
    Inventor: Fridolin Babler
  • Patent number: 5585189
    Abstract: 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: Grant
    Filed: May 26, 1995
    Date of Patent: December 17, 1996
    Assignee: Sakura Color Products Corporation
    Inventors: Hiroshi Inoue, Shigeyasu Inoue, Seishiro Ito
  • Patent number: 5556454
    Abstract: 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: Grant
    Filed: February 1, 1995
    Date of Patent: September 17, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Albert Bender
  • Patent number: 5525152
    Abstract: 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: Grant
    Filed: May 1, 1995
    Date of Patent: June 11, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Roschger, Stephan Michaelis, Gunther Franke, Bernd Woost, Bernd Kaletta
  • Patent number: 5484477
    Abstract: 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: Grant
    Filed: October 7, 1994
    Date of Patent: January 16, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Billy L. George, Stefan A. Babirad, Delmon H. Penny
  • Patent number: 5472498
    Abstract: 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: Grant
    Filed: May 10, 1994
    Date of Patent: December 5, 1995
    Assignee: BST Holdings PTY. Limited
    Inventors: Neville C. Stephenson, Gary P. Norton
  • Patent number: 5389141
    Abstract: 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: Grant
    Filed: December 22, 1993
    Date of Patent: February 14, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Laurent Chassot
  • Patent number: 5378276
    Abstract: 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: Grant
    Filed: February 17, 1994
    Date of Patent: January 3, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Laurent Chassot, Gary Wooden
  • Patent number: 5376169
    Abstract: 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: Grant
    Filed: April 15, 1993
    Date of Patent: December 27, 1994
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Hideo Hotomi, Hideaki Ueda
  • Patent number: 5366546
    Abstract: 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: Grant
    Filed: November 17, 1992
    Date of Patent: November 22, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: James M. McCrae, Anne M. Keirs, John A. Nimmo
  • Patent number: 5362315
    Abstract: 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: Grant
    Filed: November 22, 1993
    Date of Patent: November 8, 1994
    Assignee: Consortium fur elektrochemische Industrie GmbH
    Inventors: Christoph Muller-Rees, Robert Maurer, Jurgen Stohrer, Franz-Heinrich Kreuzer, Silvia Jung, Franz Csellich
  • Patent number: 5348580
    Abstract: 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: Grant
    Filed: August 25, 1993
    Date of Patent: September 20, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Laurent Chassot
  • Patent number: 5346545
    Abstract: 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: Grant
    Filed: March 5, 1993
    Date of Patent: September 13, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Laurent Chassot
  • Patent number: 5340394
    Abstract: 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: Grant
    Filed: June 21, 1993
    Date of Patent: August 23, 1994
    Assignee: The Glidden Company
    Inventor: Abmed A. Elsamanoudi
  • Patent number: 5336313
    Abstract: 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: Grant
    Filed: December 16, 1991
    Date of Patent: August 9, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Reinhard Bunte, Wolfgang Gress, Ulrich Nagorny, Manfred Gorzinski
  • Patent number: 5308395
    Abstract: 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: Grant
    Filed: June 4, 1992
    Date of Patent: May 3, 1994
    Assignee: Ferro Corporation
    Inventors: Neil A. Burditt, Richard L. Abrams
  • Patent number: 5308646
    Abstract: 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: Grant
    Filed: August 23, 1990
    Date of Patent: May 3, 1994
    Assignee: Arizona Board of Regents
    Inventor: Carleton B. Moore
  • Patent number: 5306342
    Abstract: 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: Grant
    Filed: March 30, 1993
    Date of Patent: April 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: John A. Stirling
  • Patent number: 5266105
    Abstract: 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: Grant
    Filed: January 29, 1992
    Date of Patent: November 30, 1993
    Assignees: Dai Nippon Toryo Co., Ltd., Mitsubishi Materials Corporation
    Inventors: Kazuyoshi Tsuneta, Tohru Taki, Kenji Kurosawa, Junya Ohe, Yasuzo Uchida
  • Patent number: 5248335
    Abstract: 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: Grant
    Filed: February 19, 1992
    Date of Patent: September 28, 1993
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventor: Yoshitaka Ohtomo
  • Patent number: 5242490
    Abstract: 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: Grant
    Filed: June 28, 1991
    Date of Patent: September 7, 1993
    Assignee: Lilly Industries, Inc.
    Inventor: James W. Maner
  • Patent number: 5208319
    Abstract: 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: Grant
    Filed: June 25, 1992
    Date of Patent: May 4, 1993
    Assignee: Westvaco Corporation
    Inventor: Peter Schilling
  • Patent number: 5194088
    Abstract: 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: Grant
    Filed: July 8, 1991
    Date of Patent: March 16, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Fridolin Babler, Edward E. Jaffe
  • Patent number: 5190583
    Abstract: 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: Grant
    Filed: June 24, 1992
    Date of Patent: March 2, 1993
    Assignee: Transfer-Electric Gesellschaft Fur
    Inventors: Tankred Menzel, Hermann Nickel
  • Patent number: 5180424
    Abstract: 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: Grant
    Filed: May 18, 1992
    Date of Patent: January 19, 1993
    Assignee: Westvaco Corporation
    Inventor: G. Frederick Hutter
  • Patent number: 5157067
    Abstract: 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: Grant
    Filed: April 16, 1991
    Date of Patent: October 20, 1992
    Assignee: Ferro Corporation
    Inventors: Neil A. Burditt, Richard L. Abrams
  • Patent number: 5151218
    Abstract: 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: Grant
    Filed: January 3, 1992
    Date of Patent: September 29, 1992
    Assignee: BYK-Chemie GmbH
    Inventors: Karl-Heinz Haubennestel, Wolfgang Pritschins
  • Patent number: 5120359
    Abstract: 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: Grant
    Filed: October 26, 1989
    Date of Patent: June 9, 1992
    Assignee: Sakura Color Products Corporation
    Inventors: Shingo Uzukawa, Yukito Shoji
  • Patent number: 5108509
    Abstract: 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: Grant
    Filed: May 8, 1990
    Date of Patent: April 28, 1992
    Assignee: Roma Color, Inc.
    Inventors: John S. Booth, Edward W. Makuch
  • Patent number: 5066331
    Abstract: 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: Grant
    Filed: December 21, 1989
    Date of Patent: November 19, 1991
    Assignee: Westvaco Corporation
    Inventor: G. Frederick Hutter
  • Patent number: 5041163
    Abstract: 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: Grant
    Filed: June 8, 1989
    Date of Patent: August 20, 1991
    Assignee: Roma Color, Inc.
    Inventors: John S. Booth, Edward W. Makuch
  • Patent number: 5024698
    Abstract: 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: Grant
    Filed: March 22, 1990
    Date of Patent: June 18, 1991
    Assignee: Sun Chemical Corporation
    Inventors: Russell J. Schwartz, Manuel Z. Gregorio
  • Patent number: 4990187
    Abstract: 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: Grant
    Filed: October 10, 1989
    Date of Patent: February 5, 1991
    Assignee: Sun Chemical Corporation
    Inventors: Chi K. Dien, Daniel J. Carlick
  • Patent number: 4944806
    Abstract: 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: Grant
    Filed: December 28, 1987
    Date of Patent: July 31, 1990
    Assignee: BASF Corporation
    Inventors: Anand S. G. Sharangpani, Floyd G. Spence, Brian D. Teunis
  • Patent number: 4921543
    Abstract: 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: Grant
    Filed: August 24, 1988
    Date of Patent: May 1, 1990
    Assignee: Rutgerswerke AG
    Inventors: Jafar Omran, Arnold Alscher
  • Patent number: 4885033
    Abstract: 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 aliphat
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: December 5, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: John B. Blackburn, Alexander Hamilton
  • Patent number: 4846893
    Abstract: 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: Grant
    Filed: February 3, 1988
    Date of Patent: July 11, 1989
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yutaka Akasaki, Naoya Yabuuchi, Tatsuro Ohki
  • Patent number: 4793863
    Abstract: 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: Grant
    Filed: October 23, 1987
    Date of Patent: December 27, 1988
    Assignee: Sun Chemical Corporation
    Inventors: Kalpathy R. Anantharaman, Susan T. Soward, Wilmeth M. Smoot
  • Patent number: 4789404
    Abstract: 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: Grant
    Filed: September 17, 1986
    Date of Patent: December 6, 1988
    Assignee: BASF Corporation
    Inventors: Doreswamy R. Iyengar, James J. Krikke
  • Patent number: 4765841
    Abstract: 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: Grant
    Filed: October 9, 1986
    Date of Patent: August 23, 1988
    Assignee: Kemisk Vaerk Koge A/S
    Inventors: Arne Vinther, Steffen C. Olsen, Bjorn E. H. Larsen, Elun S. Madsen, Bjorn Madsen
  • Patent number: 4756759
    Abstract: 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: Grant
    Filed: March 17, 1987
    Date of Patent: July 12, 1988
    Assignee: SICPA Holding S.A.
    Inventors: Albert Amon, Haim Bretler