Dye Concentrate Composition Wherein An Additional Amount Of A Constituent Of The Composition Must Be Added Before Use Patents (Class 8/527)
  • Patent number: 11359103
    Abstract: Scrub resistant inks and methods and apparatus for fabrication and use thereof are provided. Scrub-resistant ink compositions may include a dye for marking skin; and a solvent dissolving a marking effective amount of the dye, wherein the solvent comprises about 0.1 to about 90 percent of a polar aprotic solvent. Apparatus for marking patients may include an ink reservoir; an ink dispenser having a fluid connection to the ink reservoir to dispense the ink at a desired rate to mark a patient; and a scrub resistant ink disposed in the ink reservoir. Methods for forming scrub-resistant ink compositions may include providing a marking effective amount of a dye suitable for use in marking skin; and mixing the dye with a first solvent comprising 0.1% to 90% of a polar aprotic solvent. Methods of marking patients may include applying an ink as recited above to a body part of the patient.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: June 14, 2022
    Assignee: VISCOT MEDICAL, LLC
    Inventors: Eric Stroud, Gary J. Pieringer
  • Patent number: 11203697
    Abstract: Scrub resistant inks and methods and apparatus for fabrication and use thereof are provided. Scrub-resistant ink compositions may include a dye for marking skin; and a solvent dissolving a marking effective amount of the dye, wherein the solvent comprises about 0.1 to about 90 percent of a polar aprotic solvent. Apparatus for marking patients may include an ink reservoir; an ink dispenser having a fluid connection to the ink reservoir to dispense the ink at a desired rate to mark a patient; and a scrub resistant ink disposed in the ink reservoir. Methods for forming scrub-resistant ink compositions may include providing a marking effective amount of a dye suitable for use in marking skin; and mixing the dye with a first solvent comprising 0.1% to 90% of a polar aprotic solvent. Methods of marking patients may include applying an ink as recited above to a body part of the patient.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: December 21, 2021
    Assignee: VISCOT MEDICAL, LLC
    Inventors: Eric Stroud, Gary J. Pieringer
  • Patent number: 10604891
    Abstract: The present invention relates to a reactive dye bath and a dyeing process for textiles. The reactive dye bath for textiles comprises an organic solvent, an aqueous dye solution, a surfactant and a co-surfactant. The reactive dye bath or the dyeing process of the present invention allows for full up-take of the dye without subjecting the textiles to any special pre-treatment and without the addition of a salt for accelerating dyeing, so as to obtain dyed textiles with a higher dyeing depth, uniformity and fastness.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: March 31, 2020
    Assignee: The Hong Kong Research Institute of Textiles and Apparel Limited
    Inventor: Yee Man Edwin Keh
  • Publication number: 20140310889
    Abstract: A method for manufacturing dyed woven or knitted fabric includes preparing woven or knitted fabric using metallic yarn and normal-pressure dyeing polyester yarn having an elasticity modulus of 400 to 600 kg/mm2 and an elongation of 30 to 40%, fabricating a dye bath by putting a dye solution obtained by dispersing a dye in water, dyeing the woven or knitted fabric by putting the prepared woven or knitted fabric into the fabricated dye bath, raising a temperature of the dye bath starting from 35 to 45° C. for 30 to 50 minutes at a rate of 1.2 to 1.5° C./min, and maintaining the heated dye bath at 90 to 100° C. for 15 to 25 minutes, and washing the dyed woven or knitted fabric. The dyed woven or knitted fabric has a light reflection reduction rate of 20% to 30%.
    Type: Application
    Filed: May 30, 2012
    Publication date: October 23, 2014
    Applicant: JUNGLIMTEXTILE
    Inventors: Jung Ha Woo, Sun Jin Kim, Sung Hyun Cho
  • Patent number: 8652219
    Abstract: The invention herein provides for an improved dye material composed of a dry particulate mixture of azo and phthalocyanine dyes for concrete surface applications.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 18, 2014
    Assignee: Ameripolish, Inc.
    Inventor: Clint Howle
  • Patent number: 8372195
    Abstract: Solid pigment concentrate comprising at least one pigment and a dispersant comprising a polyamine backbone and one or more hydrophobic pendent groups, characterized in that the concentrate further comprises a non-ionic 5 surface active agent comprising polyoxyalkylene groups. The polyamine backbone can for instance comprise polyalkylene imine building blocks.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: February 12, 2013
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Steven Henry, Roger Francis Graham Brown
  • Publication number: 20120023685
    Abstract: A fabric dyeing apparatus and/or method can include a tunnel, such as a modified bleaching tunnel, comprising a plurality of chambers through which a load of fabric is successively transferred. A first set of the chambers can include a consecutive series of dye chambers through which the fabric load and a single dye bath are successively transferred and in which the dye bath is heated to about the same temperature in each of the dye chambers. A first chamber in the series of dye chambers and each chamber subsequent to the dye chambers can be adapted to receive a fresh water bath. A last chamber in the series of dye chambers and each subsequent chamber can be adapted to drain the bath in those chambers. The weight ratio of dye bath mixture-to-fabric can be about 5:1. The dye bath can include a fiber reactive dye or a direct fabric dye.
    Type: Application
    Filed: August 2, 2010
    Publication date: February 2, 2012
    Inventors: Michael Kevin Sell, Larry Harris
  • Patent number: 8101731
    Abstract: The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper. The dyes are of formula (14), (15) or (16) in which R1 represents hydrogen, C1-C4alkyl, C1-C4alkoxy or SO3H, R2 represents SO3H or CO2H, R3 represents hydrogen, C1-C4alkyl, halogen, hydroxy, C1-C4alkoxy, carboxy, NH2 or NHC1-C4alkyl, R3a represents hydrogen or NH2 and A1 and A2, independently of the other, is selected from the group consisting of an acetoacetylated amine, a derivative of barbituric acid, a 2,4,6-triaminopyrimidine derivative, a pyridone derivative, an aminopyrazole or a pyrazolone derivative and a benzoic acid derivative, or A1 and A2, each one independently of the other, represent a certain phenol residue.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: January 24, 2012
    Inventors: Michael Lennartz, Adolf Käser, Sandra Weiss
  • Patent number: 7922779
    Abstract: The invention herein provides for an improved dye material composed of a concentrated dye element for mixture with an aqueous element prior to application.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: April 12, 2011
    Assignee: American Decorative Concrete Supply Company, Inc.
    Inventor: Clint Howle
  • Patent number: 7906632
    Abstract: The present invention relates to novel 1:2 chromium complex dyes, processes for their preparation and their use for dyeing or printing fibre materials containing hydroxyl groups or containing nitrogen. The present invention relates to a 1:2 chromium complex dye of formula (I) wherein all substituents are as defined in the claims, a process for their preparation and their use for dyeing or printing fiber materials containing hydroxyl groups or containing nitrogen.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: March 15, 2011
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Rainer Nusser
  • Patent number: 7723494
    Abstract: The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.
    Type: Grant
    Filed: January 4, 2008
    Date of Patent: May 25, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Lennartz, Adolf Käser, Sandra Weiss
  • Patent number: 7686851
    Abstract: The present invention concerns concentrated storage-stable aqueous dye solutions comprising a) 5% to 30% by weight of a dye of the formula ?where K is a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series, and b) 0.1 to 0.9 mol of aminoalkoxy alcohols or monoalkanolamines per mole of dye of the formula (1) and c) 0 to 3 mol of trialkanolamine per mole of dye of the formula (1).
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: March 30, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Heidrun Schene
  • Patent number: 7503940
    Abstract: Methods for spot-dyeing a damaged area on a textile employing a selected color loss filter and utilizing at least one of a primary color dye. In one embodiment, the method can include the following: inspecting the damaged area through the selected color loss filter; determining whether a primary color is missing from the damaged area by being able to view the damaged area through the selected color loss filter to, thereby, confirm that the primary color is missing from the damaged area; and applying at least one of a primary color dye, corresponding to the selected color loss filter, to the damaged area, while viewing the damaged area through the color loss filter, until the damaged area is substantially invisible through the color loss filter.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: March 17, 2009
    Assignee: Harris Research, Inc.
    Inventors: Craig Donaldson, Edward E. Durrant
  • Publication number: 20080316289
    Abstract: A composition comprising a black dye of Formula (1) or a salt thereof and of a dye of Formula (2) or a salt thereof: wherein A, G, m, n, R1, R2, Q1, Q2, X and q are as defined in the claims.
    Type: Application
    Filed: July 31, 2007
    Publication date: December 25, 2008
    Inventor: Janette Cordwell
  • Publication number: 20080264297
    Abstract: Concentrated aqueous dye solutions comprising one or more cationizable dyes, an organic acid and water are useful for dyeing and/or printing organic substrates and for producing inkjet printing inks.
    Type: Application
    Filed: February 14, 2006
    Publication date: October 30, 2008
    Inventor: Rainhard Pedrazzi
  • Patent number: 7351808
    Abstract: Anionic monoazo dyes of the formula (1) in which A represents 1- or 2-naphthyl residue, which is substituted by a total of one or two sulphonic and/or carboxylic acid groups.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: April 1, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Michael Lennartz, Sandra Weiss
  • Patent number: 7307778
    Abstract: The invention is directed to compositions and processes useful for the roll-to-roll manufacturing of electrophoretic displays.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: December 11, 2007
    Assignee: SiPix Imaging, Inc.
    Inventors: Xiaojia Wang, Chia-Pu Chang, Sean Kiluk, Zarng-Arh George Wu, Rong-Chang Liang
  • Patent number: 7291184
    Abstract: The present invention relates to a method of reducing the total organic carbon (TOC) content of waste water in the course of the preparation of concentrated solutions or suspensions of anionic organic compounds, which method comprises increasing the concentration of an aqueous solution or suspension of an anionic organic compound in the form of its free acid or its alkali metal salt, having a salt content of less than 5% of extraneous salt by weight based on the total solution or suspension, by microfiltration, ultrafiltration and/or nanofiltration, a) the membrane pore size being so selected that compounds having molecular weights in the range from 300 to 1000 Daltons or higher are retained, and b) the content of anionic compound in the concentrate being so adjusted to from 10 to 50% by weight that the total organic carbon (TOC) content of the permeate is less than 0.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: November 6, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kurt Huber, Rolf Lucas, Jacek Malisz, Ernst Wagner
  • Patent number: 7172634
    Abstract: This invention pertains to certain novel colorant compounds containing one or more ethylenically-unsaturated, photopolymerizable radicals that may be copolymerized (or cured) with ethylenically-unsaturated monomers to produce colored compositions such as colored acrylic polymers. Suitable compositions having the present colorants copolymerized therein include, e.g., polymers produced from acrylate and methacrylate esters, colored polystyrenes, and similar colored polymeric materials derived from other ethylenically-unsaturated monomers. The present invention also pertains to processes for preparing the photopolymerizable colorant compounds. The ethylenically unsaturated colorant compounds may be suitable for use in coatings that are applied to wood, glass, metal, thermoplastics and the like.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: February 6, 2007
    Assignee: Eastman Chemical Company
    Inventors: Jason Clay Pearson, Max Allen Weaver, Jean Carroll Fleischer, Greg Alan King
  • Patent number: 7132515
    Abstract: The invention relates to reactive dyes according to the given, defined general formula (I) wherein D1 and D2 , R and R*, in addition to M are defined as per claim 1.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: November 7, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventor: Joachim Eichhorn
  • Patent number: 7129336
    Abstract: The present invention relates to reactive dyes of the general formula (1) where Y is a heterocyclic reactive group of the general formula (2) or (3) where X1 to X5 are each as defined in claim 1, processes for their preparation and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: October 31, 2006
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Stefan Ehrenberg, Jörg Wörner, Tracy Livesey
  • Patent number: 7078497
    Abstract: The dyes of formula (1) according to claim 1 and the copper complexes of dyes of formula (2) according to claim 9 or the mixtures of mono-copper complex with the bis-copper complex are excellently suitable for dyeing paper with good light-fastness properties.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: July 18, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Adolf Käser, Holger Lautenbach
  • Patent number: 6984723
    Abstract: Use of the mono-copper complex of a dye of formula (1) wherein Z1, Z2, R1, R2, R3, R4, X, n and m are as defined in the claims, and mixtures thereof with the bis-copper complex of such a dye, for dyeing natural and synthetic material.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: January 10, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Adolf Käser
  • Patent number: 6860906
    Abstract: Described is a process for preparing concentrated solutions or suspensions of anionic organic compounds which comprises a) acidifying an aqueous solution or suspension of an anionic organic compound containing salts and/or impurities to a pH of 4.5 or less, if the pH is above this value, so that b) the anionic organic compound is water-insoluble and precipitates in the form of the free acid, c) bringing the suspension to a salt content below 2% by weight, based on the total weight of the retentate, by means of ultrafiltration with a membrane having pore diameters of from 0.001 to 0.02 ?m, and d) optionally washing out the salts with water having a pH below 4,5, e) optionally carrying out acid-free washing with water thereafter, and then f) concentrating, so that the amount of anionic organic compound is 5-50% by weight, and g) if desired, bringing the anionic organic compound into solution by adding an appropriate base.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: March 1, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jacek Malisz, Adolf Käser, Rainer Kaufel, Holger Lautenbach, Elke Polley, Martina Hoffmann
  • Patent number: 6844428
    Abstract: The invention relates to the use of disazo compounds according to formula (I) wherein all substituents are as defined in claim 1 salts thereof and mixtures of these compounds for dyeing or printing organic substrates, to novel compounds, to the process for the production of these compounds and to substrates dyed or printed by these compounds.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: January 18, 2005
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Ludwig Hasemann, Friedrich Lehr
  • Patent number: 6797016
    Abstract: Concentrated dye compositions (P) which are solutions of y % by weight of at least one anionic dye (A) in a solution of x % by weight of benzyl alcohol (B) in water, and z % by weight of at least one formulation additive (F), in which x is a number in the range from 0.5 to 4, y is a number in the range from 5 to 35 and z is a number in the range from 0 to 2, and are essentially free from alcohols other than (B) and from solvents or solubilizers other than water and (B) are distinguished by their surprisingly good stability and can be used for any desired dyeing methods for which the respective dyes (A) themselves can be employed, be it for the dyeing of fibre material or be it, in particular, for the coloring of non-fibrous substrates.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: September 28, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Georg Schöfberger, Klaus Körte, Jürgen Geiwiz
  • Patent number: 6733542
    Abstract: A method for darkening black clothing for darkening faded black clothing and for preventing the fading of black clothing. The method for darkening black clothing includes a quantity of black dye, a quantity of sodium chloride salt, and a quantity of water. The black dye, the salt and the water are mixed together to define a mixture. The mixture in a container for later use in darkening clothing.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: May 11, 2004
    Inventor: Terri J. Fort
  • Patent number: 6719906
    Abstract: A process for the preparation of concentrated solutions or suspensions of anionic organic compounds is described, which process comprises a) acidifying an aqueous solution or dispersion of an anionic organic compound that comprises salts and/or impurities to a pH of 4.5 or less, if the pH is above that value, so that the anionic organic compound becomes insoluble in water and precipitates out in the form of the free acid, b) bringing the suspension obtained from the previous step to a salt content below 2% by weight, based on the total weight of retentate, by means of ultra-filtration with a ceramic membrane or an acid-resistant organic membrane having a pore size of from 1 to 20 nm, and c) optionally washing out of the salts with water at a pH of less than 4.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: April 13, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jacek Malisz, Adolf Käser, Rainer Kaufel, Holger Lautenbach, Elke Polley, Martina Hoffmann
  • Patent number: 6713613
    Abstract: A reactive dye compound comprising: (a) at least one chromophore moiety (b) at least one nitrogen-containing heterocycle (c) a linking group to link each chromophore moiety to each nitrogen-containing heterocycle; characterised in that at least one nitrogen-containing heterocycle is substituted with at least one oxy- or thio-carbonyl derivative wherein the oxy- or thio-carbonyl derivative is selected from Y wherein Y is —A(CO)R* wherein A is selected from O or S and wherein R* is an organic residue which comprises at least one nucleophilic group, and salts thereof.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: March 30, 2004
    Assignee: North Carolina State University
    Inventors: David Malcolm Lewis, Wei Dong He, Taher Iqbal Yousaf, Gilles Yves Marie Fernand Genain
  • Patent number: 6660047
    Abstract: The present invention entails a hair coloring kit that enables a person to mix or formulate a plurality of different hair color compositions. The kit includes a base composition or hair spray, a group of color concentrates, and a dispenser. One or more of the color concentrates is mixed with the base composition in the dispenser to form a hair coloring composition of a particular color. Thereafter, the formed hair coloring composition can be sprayed onto the hair of a person.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: December 9, 2003
    Inventor: Virgil E. Stanley, III
  • Patent number: 6589706
    Abstract: A cyanine dye (I) for using in high density optical disc recording medium, having the following structure: in which R1 represents R2 represents and alkyl with C1-C18 or X− represents an acid anion. This cyanine dye is suitable for use as a &lgr;=500 nm−650 nm visible light-absorbing organic dye useful as a high density optical disc recording medium.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 8, 2003
    Assignees: Industrial Technology Research Institute, National Tsing-Hua University
    Inventors: Wen-Yih Liao, Andrew Teh Hu, Chien-Liang Huang, Huei-Wen Yang, Der-Ray Huang, Ding-Yih Hu, Ming-Chia Lee, Hong-Ji Lee
  • Patent number: 6583273
    Abstract: This invention relates to dyes of formula wherein R1 is hydrogen, halogen, C1-C8alkyl, —NH—CO—C1-C4alkyl or phenyl, R2 is hydrogen, halogen, C1-C8alkyl, C1-C8alkoxy, —NH—CO—C1-C4alkyl or phenyl, R3 is hydrogen, C1-C8alkyl or phenyl, R4 is hydrogen, halogen or C1-C8alkyl, and X is —CO—, — COO—or —SO2—, and n is the number 1 or 2, to their preparation and to their use for dyeing or printing natural and synthetic materials, in particular synthetic polyamide fibre materials.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: June 24, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Pierre Bacher, Jean-Marie Adam
  • Patent number: 6491731
    Abstract: A mixture of yellow azo- and azoxystilbene dyes having the shade of a C.I. Direct Yellow 11 dye is obtainable from the self-condensation of 4,4′-dinitro-2,2′-stilbenedisulfonic acid in the presence of an alkali metal hydroxide and an excess of formaldehyde beyond that needed for the conversion of 4,4′dinitro-2,2′-stilbenedisulfonic acid to Direct Yellow 6. Concentrated aqueous solutions of the dyes are obtainable by converting the sparingly soluble alkali metal salt of the dye into a water-soluble alkanolammonium salt by a double cation exchange via a lipophilic ammonium salt, in which process the double ion exchange is carried out in a two-phase system of methyl isobutyl ketone/water and using, for the first ion exchange a trialkylamine containing a total of 12 to 40 carbon atoms and, for the second ion exchange, a mono-, di- or trialkanolamine containing 2 to 4 carbon atoms in each alkyl moiety. The dyes are especially useful for dyeing paper.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 10, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Frederick Harold Gouzoules
  • Patent number: 6428581
    Abstract: Concentrated leuco indigo solutions useful for dyeing cellulosic textile material consist essentially of from 25 to 55% by weight of leuco indigo in the form of the leuco indigo salt, an amount which is essentially stoichiometrically sufficient to convert the leuco indigo into the neutral leuco indigo salt of a mixture of at least two alkali metal hydroxides wherein none of the alkali metal hydroxides accounts for more than 70 mol %, and water.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: August 6, 2002
    Assignee: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Manfred Gäng, Rudolf Krüger, Peter Miederer
  • Patent number: 6365136
    Abstract: The composition for removing or lightening hair color is in the form of a hair color lightening suspension and is mixed with an aqueous oxidizing composition immediately prior to use. The composition includes a combination of from 0.1 to 80 percent by weight of one or more organic lipophilic compounds, namely vegetable or animal fats, vegetable or animal oils, vegetable or animal waxes, paraffin hydrocarbons, higher alcohols or ethers, aliphatic and aromatic esters and/or silicone oils; from 0.1 to 40 percent by weight of at least one lipophilic inorganic or organic thickener, which forms an oleogel and/or lipogel with the lipophilic compounds; from 0.1 to 40 percent by weight of one or more hydrophilic inorganic or organic thickeners; from 10 to 65 percent by weight of at least one inorganic persalt; from 10 to 45 percent by weight of at least one alkaline reacting salt; and auxiliary substances and cosmetic additive ingredients, as needed.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: April 2, 2002
    Assignee: Wella Aktiengesellschaft
    Inventors: Dirk Lauscher, Herbert Deutz, Gabriele Hess, Helga Kreher, Petra Braun, Joerg Schmidt
  • Patent number: 6339145
    Abstract: Amino azoic dyes having general formula (I) wherein: R1 is linear or branched alkyl having from 6 to 20 carbon atoms; R2 and R3 are independently H, CH3, C2H5, OCH3 or OC2H5; R4 and R5 are independently H, CH3 or C2H5; X is H or OH; and Y is hydrogen or poly-isopropxy chain (IA) wherein n is between 1 and 4. They are used as markers of oil distillation product.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: January 15, 2002
    Assignee: Societa' Italiana Additivi per Carburanti S.r.l.
    Inventor: Enrico Traverso
  • Publication number: 20010049851
    Abstract: Process for preparing formulations comprising dyes and/or brighteners which possess at least one free SO3H and/or COOH group, characterized in that an aqueous suspension comprising
    Type: Application
    Filed: January 10, 2001
    Publication date: December 13, 2001
    Inventors: Wolfgang Zarges, Rolf Brockmann, Erwin Bacher, Detlef Szeymies
  • Patent number: 6320031
    Abstract: Monoazo dyes of formula (3) wherein A, R1, R2, M and n are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the preparation of inks for ink jet printing.
    Type: Grant
    Filed: February 23, 2000
    Date of Patent: November 20, 2001
    Assignee: Ilford Imaging Switzerland GmbH
    Inventors: Kurt Baettig, Gérald Jan
  • Patent number: 6241786
    Abstract: This invention relates to a process for preparing formulations comprising dyes and/or brighteners which possess at least one free SO3H and/or COOH group, in which an aqueous suspension comprising a) dyes and/or brighteners which possess at least one free SO3H and/or COOH group and b) inorganic synthesis salts is desalinated using a microfiltration membrane having pore diameters of from 0.05 to 40 &mgr;m.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: June 5, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Zarges, Rolf Brockmann, Erwin Bacher, Detlef Szeymies
  • Patent number: 6221113
    Abstract: A liquid dyestuff composition comprising from 4 to 50 wt % of a basic or cationic water soluble dyestuff, an organic or inorganic acid and 0.1 to 15.0 wt % of a phenolic derivative, the dyestuff having a solubility in water in the presence or absence of a phenolic derivative of at least 1 g/liter at a temperature of 25° C. and the composition being made up to 100 wt % by water and optionally a water-miscible solvent and/or a dissolving auxiliary; a process of dyeing a substrate like paper with such composition; a powder or granulate form of such composition and the use of such a composition or powder or granulate thereof in a dyeing process.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: April 24, 2001
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Jürgen Geiwiz
  • Patent number: 6194554
    Abstract: The invention relates to novel disazo dyes of the formula in which the substituents and indices have the meaning stated in the disclosure, that are suitable for dyeing and printing polymeric materials and for the preparation of recording liquids for ink jet recording apparatus.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: February 27, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Winfried Mennicke, Klaus Kunde
  • Patent number: 6121352
    Abstract: The present invention relates to dye mixtures comprising at least one compound of the formula (I) ##STR1## and at least one compound of the formula (II) ##STR2## where the substituents are each as defined in the description part, which are highly useful for dyeing and printing hydrophobic synthetic material.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: September 19, 2000
    Assignee: Dystar Textifarben GmbH & Co.
    Inventors: Manfred Hoppe, Kiyoshi Himeno, Ryouichi Sekioka
  • Patent number: 6120561
    Abstract: Process for the preparation of low-salt liquid dyestuff preparations, characterized in that they are obtained by:a) diazotization of an aromatic amine,b) 2-fold coupling of the diazo component obtained according to a) to I-acid-urea, in the presence of an inorganic base and in the absence of an organic base,c) desalination and, if appropriate, concentration by means of a pressure permeation of the reaction mixture obtained according to b), so that an inorganic salt content of less than 1% by weight is achieved.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: September 19, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Wild, Volker Paulat, Wolfgang Frank, Shaun Murphree
  • Patent number: 6084078
    Abstract: The novel disazo dyestuffs of the formula (I) in which the substituents and indices have the meanings given in the description, are outstandingly suitable for dyeing cellulosic materials in red-violet to blue brilliant color shades.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: July 4, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventor: Winfried Mennicke
  • Patent number: 6031083
    Abstract: The new disazo dyestuffs of the formula (I) ##STR1## wherein the substituents and the indices have the meanings given in the description,wherein more than 25 equivalent % of all the M cations in the molecule are alcohol ammonium radicals of the formula .sup..sym. NR.sub.1 R.sub.2 R.sub.3 R.sub.4 whereinR.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another represent hydrogen, C.sub.1 -C.sub.4 -alkyl and C.sub.2 -C.sub.4 -hydroxyalkyl, with the proviso that at least one of the radicals R.sub.1 -R.sub.4 denotes C.sub.2 -C.sub.4 -hydroxyalkyl,are excellently suitable for dyeing cellulose-containing materials, and in particular paper, and are distinguished by high degrees of fastness.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: February 29, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Kunde, Wolfgang Zarges
  • Patent number: 6022957
    Abstract: Azothiophene disperse dyes of Formula (1) ##STR1## in which R, R.sup.1, R.sup.2 and R.sup.3 each independently is alkyl or alkenyl and mixtures thereof with other dyes are useful for dyeing synthetic textile material or a fiber blend thereof such as secondary cellulose acetate, cellulose triacetate, polyamide, polyacrylonitrile and aromatic polyester.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: February 8, 2000
    Assignee: BASF Aktiengesellschaft
    Inventor: Alan T. Leaver
  • Patent number: 5986075
    Abstract: The present invention relates to a process for desalting aqueous suspensions containing an organic diazonium compound and electrolytes containing Na ions, in which the aqueous suspension is passed through a semipermeable membrane.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: November 16, 1999
    Assignees: Bayer Corporation, Bayer Aktiengesellschaft
    Inventors: John C. DuBose, Andrew D. Johnson, Samuel Shaun Murphree, Edzard Tholema, Helmut Hoffmann, Wolfgang Zarges, Wolfgang Frank, Bettina Burkhardt
  • Patent number: 5984978
    Abstract: There are described reactive dyes of formula ##STR1## wherein the variables are as defined in the claims. The reactive dyes of formula (1) are suitable especially for dyeing or printing cellulosic fiber materials.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: November 16, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Herbert Klier, Athanassios Tzikas
  • Patent number: 5972049
    Abstract: Improvements in the disperse dyeing process for hydrophobic textiles by the use of novel dye carrier formulations are disclosed. The carrier composition for use in disperse dyeing of hydrophobic textile material preferably comprises an alkylphthalimide carrier component and a clay dispersing agent. Dye baths and methods of disperse dyeing of a hydrophobic textile material are also disclosed. The use of clay as a dispersing agent allows for the use of carrier compositions with reduced health and environmental hazards without adversely affecting dyeing characteristics.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: October 26, 1999
    Assignee: Sybron Chemicals Inc.
    Inventors: Calvin M. Wicker, Jr., Otto Bello, Ricky C. Phillips, Robert B. Login
  • Patent number: 5969115
    Abstract: Bisazo dyes of formula (IX) ##STR1## and of formula (X) ##STR2## wherein A, R.sub.4, M and n are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the preparation of inks for ink jet printing.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: October 19, 1999
    Assignee: Ilford Imaging Switzerland GMBH
    Inventor: Heinz Peter