Halogen-containing Patents (Class 8/614)
  • Patent number: 10214836
    Abstract: Acrylic compositions comprising a hindered amine light stabilizer are described herein. The acrylic composition may be in the form of a fiber, thread, yarn, and/or fabric. Also described herein are methods of making and using the acrylic compositions and articles comprising an acrylic composition as described herein.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: February 26, 2019
    Assignee: Glen Raven, Inc.
    Inventors: David Buffington, Gary Kevin Hyde
  • Patent number: 8932370
    Abstract: Dyes, compositions comprising dyes and methods for using the same are provided.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: January 13, 2015
    Assignee: Living Proof, Inc.
    Inventors: Jana Lewis, Lorna Nagamoottoo-Casse, David Puerta
  • Patent number: 8097047
    Abstract: Rejuvenation compositions including a reactive dye are disclosed for the one-shot rejuvenation of the color for dark-colored textile fabrics and garments formed therefrom. The rejuvenation compositions return faded black or dark colored garments to a like-new look. Methods of rejuvenating the faded color of garments by using the dye compositions are also disclosed.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: January 17, 2012
    Assignee: The Procter & Gamble Company
    Inventors: Mark Robert Sivik, Allison Lynn Gerdes, Gayle Marie Frankenbach, Gregory T. Waning, Ramanan Venkata Ganapathysundaram, Michael Timothy Creedon
  • Publication number: 20110277249
    Abstract: Colored high-strength fibers of ultra-high-molecular-weight polyolefins and methods of dyeing the high-strength fibers are disclosed herein.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 17, 2011
    Inventors: Ferass Abuzaina, Ali Irfan
  • Patent number: 7731763
    Abstract: The present invention relates to a method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide, said substrate being selected from the group consisting of cellulose fibers; modified cellulose fibers; protein fibers; synthetic fibers and any combination thereof, wherein the method comprises dyeing said substrate by contacting the substrate with supercritical or near supercritical carbon dioxide containing a reactive dyestuff and one or more acids in a concentration of at least 0.05 mol.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: June 8, 2010
    Assignee: Feyecon Development & Implementation B.V.
    Inventors: Maria Vanesa Fernandez Cid, Geert Jan Witkamp, Geert Feye Woerlee, Wilhelmus Johannes Theodorus Veugelers
  • Patent number: 7338538
    Abstract: The present invention provides a cosmetic or pharmaceutical composition and methods for coating keratinous fibers, whereby the composition comprises more than 50% of at least one perfluoro compound.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: March 4, 2008
    Assignee: ELC Management LLC
    Inventors: Daniela Bratescu, Isaac D. Cohen, John Dudley Dreher, Monica Apostol
  • Patent number: 6733541
    Abstract: The invention concerns a composition for the dyeing of human hair on the basis of at least one direct-acting hair dyestuff, characterized in that it comprises at least one dyestuff of the formula (1) wherein R1 is a halogen atom; R2 and R4 are an optionally OH— or NH2-substituted C1-C4-alkyl group or phenyl group and R3 stands for H, or an optionally OH— or NH2-substituted C1-C4-alkyl group or phenyl group.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: May 11, 2004
    Assignee: KAO Corporation
    Inventor: Dominic Pratt
  • Patent number: 6632526
    Abstract: An improved method of making a series of bead or microsphere or particle populations characterized by subtle variation in a proportion or ratio of at least two fluorescent dyes distributed within a single bead of each population is provided. These beads, when excited by a single excitation light source are capable of giving off several fluorescent signals simultaneously. A set containing as many as 64 distinct populations of multicolored, fluorescent beads is provided and when combined with analytical reagents bound to the surface of such beads is extremely useful for multiplexed analysis of a plurality of analytes in a single sample. Thus, methods of staining polymeric particles, the particles themselves, and methods of using such particles are claimed.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: October 14, 2003
    Assignee: Luminex Corporation
    Inventors: Don J. Chandler, Van S. Chandler, Beth A. Lambert, Janet J. Reber, Stacie L. Phipps
  • Patent number: 6599331
    Abstract: An improved method of making a series of bead or microsphere or particle populations characterized by subtle variation in a proportion or ratio of at least two fluorescent dyes distributed within a single bead of each population is provided. These beads, when excited by a single excitation light source are capable of giving off several fluorescent signals simultaneously. A set containing as many as 64 distinct populations of multicolored, fluorescent beads is provided and when combined with analytical reagents bound to the surface of such beads is extremely useful for multiplexed analysis of a plurality of analytes in a single sample. Thus, methods of staining polymeric particles, the particles themselves, and methods of using such particles are claimed.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: July 29, 2003
    Assignee: Luminex Corporation
    Inventors: Don J. Chandler, Beth A. Lambert, Janet J. Reber, Stacie L. Phipps
  • Patent number: 6524350
    Abstract: Stabilized metachromatic dyes, especially at application concentrations, comprising metachromatic dyes dissolved in one or more non-aqueous solvents, as well as metachromatic dyes dissolved in pH stabilized aqueous solutions. Also, various combinations of treatments are disclosed for stabilizing metachromatic dyes.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: February 25, 2003
    Assignee: GE Betz, Inc.
    Inventors: Kristin E. Buentello, Larry M. Kye, Elizabeth Yibin Zhang, Victoria Rafalovsky, Alan M. Agree
  • Patent number: 6514295
    Abstract: An improved method of making a series of bead or microsphere or particle populations characterized by subtle variation in a proportion or ratio of at least two fluorescent dyes distributed within a single bead of each population is provided. These beads, when excited by a single excitation light source are capable of giving off several fluorescent signals simultaneously. A set containing as many as 64 distinct populations of multicolored, fluorescent beads is provided and when combined with analytical reagents bound to the surface of such beads is extremely useful for multiplexed analysis of a plurality of analytes in a single sample. Thus, methods of staining polymeric particles, the particles themselves, and methods of using such particles are claimed.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: February 4, 2003
    Assignee: Luminex Corporation
    Inventors: Don J. Chandler, Beth A. Lambert, Janet J. Reber, Stacie L. Phipps
  • Patent number: 6299651
    Abstract: A process for imparting long-lasting antimicrobial properties to fabrics is disclosed which entails the diffusion of triclosan esters within each individual fiber of a textile. One preferred method is performed in a standard jet dye bath which requires a high range of temperatures to effectively color fabrics. Dyeing in this manner also involves diffusing compounds within individual fibers; thus, this manner of incorporating dyestuffs and colorants within textile fabrics provides a compatible and effective vehicle for simultaneously introducing triclosan esters within such textile fibers, also. A dye bath application is not required, however, as any procedure which allows contact between a triclosan ester derivative and a fabric at a sufficient temperature and for a sufficient time to effectuate diffusion of the ester within each individual fiber of the fabric is also contemplated within this invention.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: October 9, 2001
    Assignee: Milliken & Company
    Inventor: Shulong Li
  • Patent number: 6241788
    Abstract: Stabilized metachromatic dyes, especially at application concentrations, comprising metachromatic dyes dissolved in one or more non-aqueous solvents, as well as metachromatic dyes dissolved in pH stabilized aqueous solutions. Also, various combinations of treatments are disclosed for stabilizing metachromatic dyes.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: June 5, 2001
    Assignee: BetzDearborn Inc.
    Inventors: Kristin E. Buentello, Larry M. Kye, Elizabeth Yibin Zhang, Victoria Rafalovsky, Alan M. Agree
  • Patent number: 5989296
    Abstract: A process for recovering a vat dye from a textile using a heated organic solvent. The textile is contacted with a heated organic solvent in which the dye is soluble until dye is extracted from the textile into the solvent to produce a dye-containing solvent solution. The dye is then recovered from the organic solvent by evaporation of the solvent leaving a dye residue, cooling and precipitation of the dye, or extraction of the dye by contacting the dye-containing solvent solution with an aqueous solution containing a reducing agent for the dye. When dye is extracted from the dye-containing solvent solution by contacting it with an aqueous solution containing a reducing agent, the dye is subsequently insolubilized by oxidation, and the dye is recovered from the aqueous dye solution. This process is particularly advantageous for recovering indigo dye from denim scrap.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: November 23, 1999
    Assignee: American Renewable Resources LLC
    Inventors: Robert T. Patton, David Hall
  • Patent number: 5968207
    Abstract: A process for imparting long-lasting antimicrobial properties to fabrics is disclosed which entails the diffusion of triclosan esters within each individual fiber of a textile. One preferred method is performed in a standard jet dye bath which requires a high range of temperatures to effectively color fabrics. Dyeing in this manner also involves diffusing compounds within individual fibers; thus, this manner of incorporating dyestuffs and colorants within textile fabrics provides a compatible and effective vehicle for simultaneously introducing triclosan esters within such textile fibers, also. A dye bath application is not required, however, as any procedure which allows contact between a triclosan ester derivative and a fabric at a sufficient temperature and for a sufficient time to effectuate diffusion of the ester within each individual fiber of the fabric is also contemplated within this invention.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: October 19, 1999
    Assignee: Milliken & Company
    Inventor: Shulong Li
  • Patent number: 5869627
    Abstract: A composition of a water-soluble bis-azo dye of the Formula (1) and an oxidising agent. ##STR1## wherein A is optionally substituted phenyl or optionally substituted naphthyl;B is optionally substituted phenylene or optionally substituted naphthylene;R.sup.1 is H or sulpho;R.sup.2 is H, optionally substituted alkyl, optionally substituted aryl or optionally substituted acyl;R.sup.3 is H, optionally substituted aryl, optionally substituted alkyl or a group, -D-E,D is optionally substituted C.sub.2-6 -alkylene; andE is a group of the Formula (1a): ##STR2## R.sup.4 & R.sup.5 each independently is H or optionally substituted alkyl; andR.sup.6 is H, optionally substituted alkyl, optionally substituted aryl or optionally substituted acyl.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: February 9, 1999
    Assignee: Zeneca Limited
    Inventors: Peter Gregory, Ronald Wynford Kenyon, Paul Wight
  • Patent number: 5772696
    Abstract: An invention is disclosed which pertains to a method for purifying water soluble dyes, such as quinoline, fluoran, and xanthene dyes. The method comprises the steps of A) adding a metal salt to the water soluble dye to form a water insoluble dye salt of the metal; B) isolating the water insoluble dye salt of step A; C) converting the water insoluble dye salt of step B into a water soluble dye solution; and D) isolating the water soluble dye from the solution of step C. The present invention teaches a straight forward, economical, and environmentally sound method for purifying water soluble dyes of FDA certifiable purity and with an aesthetically improved shade.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 30, 1998
    Assignee: Warner-Jenkinson Company, Inc.
    Inventor: Puthalath Koroth Sujeeth
  • Patent number: 5653770
    Abstract: This invention is directed to a method of treating fabrics and garments so as to impart onto said fabrics and garments an antique or vintage look and feel. This invention is further directed to antique-looking and feeling fabrics and garments.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: August 5, 1997
    Assignee: Polo Ralph Lauren Corporation
    Inventors: Eric Goldstein, Randolph Finley
  • Patent number: 5571291
    Abstract: A low-temperature dyeing additive for protein fiber products contains one or more kinds of solvents which are freely miscible with water and having a donor number within the range of 24 to 50 and an acceptor number within the range of 10 to 24 in the presence or absence of a surfactant, in an amount of 0.025 to 40 g per liter of water, has a pH of 3.5 to 9.5. If necessary, it contains tributoxyethyl phosphate in an amount of 0.025 to 4.0 g per liter of water, and/or contains one or more kinds of anions having an enthalpy of hydration (-.DELTA.H.sub.KJ.multidot.mol.sup.-1) of 200 to 290 in an amount of 0.05 to 40 g per liter of water. This low-temperature dyeing additive for protein fiber products serves to relax the higher-order structures of the protein fibers before dyeing or during dyeing, to thereby swell the fibers, thus rendering the fibers readily dyeable without detriment to the properties thereof.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: November 5, 1996
    Assignee: Tuyaku Co., Ltd.
    Inventor: Sachizumi Koike
  • Patent number: 5567206
    Abstract: A wood stain which is water-based, which is suitable for staining wood, and which is comprised of water; at least one dye selected from the group, consisting of azo, diazo and triarylmethane dyes; and a stabilizing agent which is effective to reduce free iron ion concentration in the stain when in contact with an autioclave composed of non-rust resistant steel during the staining process. The stabilizing agent includes at least one buffer effective to maintain the pH of the wood stain at greater than 7.0. Alternatively or additionally, the stabilizing agent includes at least one complexing agent which forms a complex with iron ions. A method for staining wood includes placing the wood into an autoclave composed of non-rust-resistant steel; submerging the wood in the wood stain; and staining the wood under pressure and temperature conditions effective therefor.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: October 22, 1996
    Assignee: A.W. Faber-Castell Unternehmensverwaltung GmbH & Co.
    Inventors: Axel Jankewitz, Gerhard Lugert
  • Patent number: 5540740
    Abstract: A low temperature microemulsion dyeing process for polyester fibers includes the steps of microemulsifying a swelling agent in water to form a continuous microemulsion solution, adding dyestuff and a dye solubility assistant agent selected from the group of short chain alcohols, dyeing polyester fibers at room temperature for 1-3 hours, washing the polyester fibers with a nonionic washing agent and thereafter drying the dyed polyester fibers.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: July 30, 1996
    Assignee: China Textile Institute
    Inventors: Shin-Chuan Yao, Jongfu Wu, Tsung-Wun Tsai, A-Fen Huang
  • Patent number: 5484457
    Abstract: Process for the continuous production of surface dyeings on cellulose fiber textile materials, characterized in that the textile materials are treated with an aqueous liquor containing at least 5 g/l of benzyl halide quaternized condensation products of precondensates of trialkanolamines and ureas, cyclic carbonates and/or epihalohydrins and/or benzyl chloride quaternized condensation products of piperazine and epichloronydrin, and 0.02 to 1 g/l of a phosphoric triester whose alcohol component has 6 to 18 carbon atoms, the textile materials thus treated are then dyed in another bath with reactive dyes in an aqueous medium and the dyes are fixed by treatment with an alkaline aqueous liquor and the dyeing finished in conventional manner. The individual cellulose fibers of the textile material are not completely penetrated by the dye but, on the contrary, exhibit ring dyeing.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: January 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Joerg Schulze, Harald Schlueter, Kurt Bacher, Wolfgang Schrott, Erich Kromm
  • Patent number: 5460630
    Abstract: Described is a process for dyeing fibrous materials made of or containing wool with anionic dyes, which comprises dyeing these materials in the presence of a wool preservative comprising at least one compound of the formulaR--O--CH.sub.2 --CH(OH)--CH.sub.2 --Y (1),where the variables are each as defined in the claims. The process makes available rub-fast level dyeings without deterioration in the quality of the wool.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: October 24, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Philippe Ouziel, Martin Kuhn
  • Patent number: 5435807
    Abstract: A process for dyeing wool-containing fibre materials with anionic dyes, which comprises dyeing said materials in the presence of a wool protective agent which is a reaction product of an epihalohydrin and an amine of formulaR--NH.sub.2 (1),wherein R is as defined in the claims. Rubfast, level dyeings without impairment of wool quality are obtainable by the process.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: July 25, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Martin Kuhn
  • Patent number: 5205838
    Abstract: Liquid dye preparations useful for making color ribbons or ballpoint pen pastes contain at least one dye of the formula ##STR1## where X is hydroxyl, amino or C.sub.1 -C.sub.15 -monoalkylamino, R.sup.1 and R.sup.4 are each a carboxylate group or substituted or unsubstituted C.sub.1 -C.sub.15 -alkoxy, R.sup.2 and R.sup.5 are each hydrogen, nitro or chlorine, and R.sup.3 is hydrogen or C.sub.1 -C.sub.13 -alkyl, plus as solvent at least one product selected from the group consisting of benzyl alcohol, tridecanol, isotridecanol, glycol ethers, olein, dialkyl phthalates, chloroalkanes, alkanes disubstituted by phenyl, dialkylnaphthalenes and partly hydrogenated terphenyl.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: April 27, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Dyllick-Brenzinger, Heinz Hartmann, Helmut Bellaire, Georg Zeidler
  • Patent number: 5102424
    Abstract: Pigment printing process for flame-retardant, low-flammability or nonflammable fibersOn being printed with conventional pigment print pastes low-flammability fibers lose their flame-retardant properties in the areas covered with the print paste. It was therefore necessary to find a binder system which itself has low-flammability properties.By using polymers and/or copolymers of vinylidene chloride as pigment binder system the low flammability of such special types of fiber is not impaired.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: April 7, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Karsunky, Anna G. Morrison, Horst-Roland Mach
  • Patent number: 4985041
    Abstract: Compositions for use as dye assistants are formed from a non-phenolic aromatic swelling agent for the fiber to be dyed mixed with just enough dispersant to cause a non-foaming emulsion upon dilution of the dye assistant in water, but not enough dispersant to interfere with the swelling process of the fiber by the dye assistant. Thus, the swelling agent is mixed with the minimum amount of surfactant required for the production of an emulsion and dispersion of the dye with little or no foaming in the dye bath. Formulations can also be prepared having higher levels of water which are non-flammable.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: January 15, 1991
    Inventor: Ralph Matalon
  • Patent number: 4828571
    Abstract: The present invention provides a non-aqueous process for the dyeing of a dyeable material at an elevated temperature by contacting a dyeable material with a dye composition at an elevated temperature in a non-reactive environment. The dye composition temperature and the time of contact between the dye composition and the dyeable material are sufficient to effectuate the dyeing of the material. The dye composition comprises a substantially non-aqueous solvent and a dyestuff.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 9, 1989
    Inventors: Ildo E. Pensa, C. Duff Hughes, Nicholas S. Hood, Eugene M. Saunders
  • Patent number: 4783196
    Abstract: Highly concentrated stable solutions of color-forming agents of the general formula ##STR1## wherein x denotes hydroxyl, alkoxy, alkenyloxy, aralkoxy, cycloalkoxy, aryloxy, acyloxy, alkylamino, dialkylamino, acrylamino, aralkylamino or arylamino andR denotes alkyl, alkenyl or aralkyl,further isocyclic or heterocyclic rings can be fused onto the rings A, B, C and D and the cyclic and acyclic radicals and the rings A, B, C and D can carry further non-ionic substituents which are customary in dyestuff chemistry, or mixtures thereof, in water-insoluble organic solvents from the group comprising optionally chlorinated hydrocarbons, vegetable oils and phthalic acid esters are used for the preparation of pressure-sensitive recording materials.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: November 8, 1988
    Assignee: Bayer Aktiengesellshcaft
    Inventors: Udo Eckstein, Hubertus Psaar
  • Patent number: 4765797
    Abstract: Liquid formulations of mixtures of cationic dyes frequently have a very short storage life. As a consequence, these formulations give rise to customer complaints concerning incorrect dyeing strengths and hues and concerning isoluble constituents. It has now been found according to the invention that powder formulations and in particular liquid formulations of cationic dyes or of mixtures of these dyes can be stabilized by adding selected oxidizing agents.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: August 23, 1988
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Hahnke, Sierling Ong, Kurt Hohmann
  • Patent number: 4723960
    Abstract: According to the process of the invention, scouring and dyeing synthetic fibers can be carried out in one-bath. The process comprises the steps of preparing a dyeing solution comprising an alkalizing agent and a pH adjusting agent being able to generate acids by heating, putting unscoured synthetic fibers in said dyeing solution and then heating to dye said fibers at high temperature. The dyeing solution may comprise a surface active agent.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: February 9, 1988
    Assignee: Meisei Chemical Works, Ltd.
    Inventors: Kiyoshi Shirasawa, Akira Hashimoto, Hirotugu Kodama, Ichiro Osawa, Yasunori Ito, Masazi Yamasaki
  • Patent number: 4680034
    Abstract: A method is disclosed for patterning a textile substrate by treating the substrate surface in a pattern configuration, for example, using heated air streams, to allow a later-applied solvent to extract dye from the treated areas at a faster rate than from untreated areas. A patterned product is also disclosed.
    Type: Grant
    Filed: April 10, 1985
    Date of Patent: July 14, 1987
    Assignee: Milliken Research Corporation
    Inventor: Robert C. Arnott
  • Patent number: 4661116
    Abstract: Textile fabrics formed at least partially of cationic dyeable polyester fibers are dyed in a continuous process with an aqueous dyebath comprising(a) 0 to 5 g/l of thickener;(b) cationic dyestuffs in an amount sufficient to dye the cationic dyeable polyester fibers to the desired depth of color;(c) 2 to 100 g/l of a partially sulfated adduct of ethylene oxide with an alkyl phenol or C.sub.8 to C.sub.16 fatty alcohols;(d) 2 to 60 g/l of nonionic or anionic surfactants; and(e) 5 to 50 g/l of at least one organic compound selected from the group consisting of aromatic nitrile ethers and ethoxylated chlorophenols.The fabrics are continuously dyed by padding, immersing, spraying or otherwise applying the dyestuffs, steaming the fabrics in their wet condition, and subsequently washing and drying.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: April 28, 1987
    Assignee: Collins & Aikman Corporation
    Inventors: Frederick E. Barwick, III, Kyle R. Pearce
  • Patent number: 4536184
    Abstract: The invention is directed to overprinting a poly(vinyl chloride) resin substrate whose surface, or portion thereof, is colored by solvent soluble dye or by way of a mass solvent soluble dye, with a coloring agent made up of a liquid halogenated hydrocarbon solvent having 1-4 carbon atoms, pigment dispersed in said halohydrocarbon solvent, and a film former, dissolved in said halohydrocarbon solvent, consisting essentially of (a) acrylic resin or (b) a combination of acrylic resin and chlorinated polyolefin, at least 50% by weight of acrylic resin; and heat treating said overprinted substrate to adhere said film former and associated pigment.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: August 20, 1985
    Assignee: Formulabs Industrial Inks, Inc.
    Inventor: Thomas D. Ryan
  • Patent number: 4451264
    Abstract: This invention is directed to inks (coloring solutions) for polyvinyl resin surfaces, particularly PVC wire insulation color coding, where the ink consists essentially of a Color Index Solvent dye dissolved in a liquid halogenated hydrocarbon solvent having 1-2 carbon atoms. A preferred solvent is dichloromethane.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: May 29, 1984
    Assignee: Formulabs Industrial Inks, Inc.
    Inventors: Donald C. Ulry, Charles G. Cosner, Thomas D. Ryan
  • Patent number: 4274829
    Abstract: Process for the continuous dyeing of synthetic fibre materials from organic solvents, wherein the material, preheated to at least 100.degree. C., is impregnated with a halogenated hydrocarbon impregnating liquor containing dyestuff or optical brightener to give a liquor absorption of more than 100%, and is then passed through a vapor zone filled with halogenated hydrocarbon at a temperature above the boiling point of the halogenated hydrocarbon in such a manner that during passage of the material through this zone the liquor becomes concentrated on the material, whereby(a) the amount of solvent on the material is not increased by condensation of halogenated hydrocarbon vapor, and(b) more than 5% of liquor is present on the material when it emerges from the vapor zone, so that the material during its passage through this vapor zone never becomes dry.
    Type: Grant
    Filed: October 4, 1978
    Date of Patent: June 23, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Jacques Zurbuchen
  • Patent number: 4225313
    Abstract: The invention relates to a process for dyeing or printing textile material, wherein the textile material is first impregnated with a solution or dispersion containing a dyestuff and the impregnated textile material is then treated with the superheated vapor of organic solvents.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: September 30, 1980
    Assignee: Ciba-Geigy, AG
    Inventors: Purushottam J. Kangle, Branimir Milicevic