Azo Patents (Class 8/639)
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Publication number: 20040139567Abstract: Reactive dye mixtures containing one or more dyes of the hereinbelow indicated and defined general formula (I) 1Type: ApplicationFiled: November 20, 2003Publication date: July 22, 2004Inventor: Joachim Eichhorn
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Patent number: 6723835Abstract: Compositions containing a solvent and at least one compound of Formula (1) in which: R1 represents H, an optionally substituted C1-8carbyl derived group, or a group of Formula A: in which c is from 2 to 6; R3 represents H or optionally substituted C1-8carbyl derived group; R4 and R5 independently represent an optional substituent; R2 represents an optionally substituted C1-8carbyl derived group; X, Y and Z independently represent H or an optional substituent; M represents H or a cation; and m and n independently represent 0, 1 or 2, are useful as colorants for color filters for displays. Compounds of Formula (1) wherein at least one of R1, R2, X, Y or Z, represent SO3M or PO3M2 are also provided.Type: GrantFiled: March 20, 2002Date of Patent: April 20, 2004Assignee: Avecia LimitedInventors: Christine Millard, Neil Anthony Tallant
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Patent number: 6709502Abstract: Monoazo dyes of formulas (IV) wherein R1, R2, R3, m, n and M are as described 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: GrantFiled: December 17, 2001Date of Patent: March 23, 2004Assignee: Ilford Imaging Switzerland GmbHInventor: Kurt Baettig
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Publication number: 20040049019Abstract: Described are mixtures of fiber-reactive azo dyes whereby black dyeings, including prints, are obtained on hydroxyl- and/or carboxamido-containing fiber materials, such as cellulose fiber materials, wool and synthetic polyamide fibers. The dye mixtures comprise one or more disazo dyes conforming to the general formula (1), one or more monoazo dyes conforming to the general formula (3), one or more monoazo dyes of the general formula (4) and/or (4a), optionally one or more monoazo dyes (2) and optionally one or more monoazo dyes conforming to the general formula (3a), as described in claim 1.Type: ApplicationFiled: October 7, 2003Publication date: March 11, 2004Inventor: Jorg Dannheim
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Patent number: 6682573Abstract: The present invention refers to a dye mixture comprising an azo dye of the formula (I) wherein each of X and X1 independently is chlorine or bromine; R1 is absent or is C1-4 alkyl; and each of R2 and R3 independently is hydrogen, C1-6 alkyl or cyanoethyl; but when R1 is absent, R2 is n-butyl or cyanoethyl and R3 is cyanoethyl; and further dye components according to claim 1, a method for the preparation of such mixtures and a method for coloring a synthetic textile material or fiber blend thereof using such mixtures.Type: GrantFiled: September 13, 2001Date of Patent: January 27, 2004Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: David Brierley, Ian Weddell, David Newton
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Publication number: 20030204919Abstract: Water-soluble fiber-reactive dyes, preparation thereof and use thereofType: ApplicationFiled: February 24, 2003Publication date: November 6, 2003Inventors: Joachim Steckelberg, Christian Schumacher
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Patent number: 6635747Abstract: A compound of the Formula (1) and salts thereof: wherein: D is the residue of a mono-azo chromophore; Z is an optionally substituted nitrogen containing heterocyclic group; R1 is H or optionally substituted alkyl; the dyes of Formula (1) being free from fibre reactive groups; provided that the compound of Formula (1) is other than the compound of Formula (A): Also claimed are compositions and inks containing a compound of Formula (1), a process for ink jet printing using the inks and to an ink jet printer cartridge containing the ink.Type: GrantFiled: July 24, 2002Date of Patent: October 21, 2003Assignee: Avecia LimitedInventors: Paul Wight, Prakash Patel
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Patent number: 6627742Abstract: Hydroxypyridonemethide azo dyes conforming to the formula (I) or its tautomeric forms where X1 to X4, R1 and R2 are each as defined in the description part, are very useful for dyeing and printing hydrophobic synthetic fiber materials and their blends with natural fiber materials.Type: GrantFiled: December 4, 2002Date of Patent: September 30, 2003Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventor: Rainer Hamprecht
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Patent number: 6616712Abstract: Compositions comprising as components A) at least one bisazo compound selected from the group consisting of the compounds of the general formula Ia and of the general formula Ib where R1 is C1-C8-alkyl, R2 is C2-C8-alkyl, R3 and R3′ are each C2-C21-alkyl in which up to four CH2 groups of the carbon chain may be replaced by oxygen in ether function, R4 is hydrogen or is R3 (independently of R3), R4′ is hydrogen or is R3′ (independently of R3′), B) at least one solvent in which said component A) is soluble, and optionally C) at least one surface-active substance, are useful as dye penetrants for detecting surface cracks or other defects in workpieces to be tested in this respect.Type: GrantFiled: May 17, 2001Date of Patent: September 9, 2003Assignee: BASF AktiengesellschaftInventors: Karin Heidrun Beck, Christos Vamvakaris, Karl-Heinz Etzbach, Gerhard Scholz, Claudia Kräh
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Publication number: 20030140432Abstract: The present invention describes a dye mixture containing at least one dyestuff of the general formula 1Type: ApplicationFiled: May 29, 2002Publication date: July 31, 2003Inventors: Joachim Eichhorn, Ronald Pedemonte
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Patent number: 6589296Abstract: A dye mixture comprises (A) at least one monoazo dye of formula (I) wherein XA is Cl, Br, I, CN or NO2; RA is C1-4alkyl or NHCOQ, where Q is C1-4alkyl; and each of RA1 and RA2, independently, is C1-4alkyl, C2-4akenyl, C1-4alkoxy-C1-4alkyl, aryl-C1-4 alkyl or aryloxy-C1-4alkyl; and (B) at least one pyrroline type dye of formula (II) wherein RB1 is H, C1-20alkyl or C2-20alkenyl; and D is aryl.Type: GrantFiled: November 30, 2000Date of Patent: July 8, 2003Assignee: BASF AktiengesellschaftInventors: Alan Thomas Leaver, David Brierley
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Patent number: 6562081Abstract: Disperse dyed polyethylene fibers obtained by either melt spinning or flash spinning and materials produced from said fibers are provided. The process utilizes dye blends containing at least three and, more preferably, four or more disperse dyes selected from a primary color group. The individual dyes are utilized at a concentration of at lest 75% but less than 100% of the determined maximum concentration which produces crocking. HDPE and LLDPE materials are effectively dyed using disperse dye blends formulated by the invention.Type: GrantFiled: March 27, 2001Date of Patent: May 13, 2003Assignee: Equistar Chemicals, LPInventors: Anil W. Saraf, Michael Bridges, Venki Chandrashekar
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Patent number: 6562082Abstract: A dye mixture comprises (A) at least one dye of formula (I) wherein X is Cl, Br or I; Q is C1-4alkyl; and each of R1 and R2 independently, is C1-4alkyl or C1-4alkenyl; and (B) at least one dye of formula (II) wherein Q1 is C1-4alkyl; and each of R1 and R2 independently, is C1-4alkyl or C1-4alkenyl.Type: GrantFiled: November 1, 2000Date of Patent: May 13, 2003Assignee: BASF AktiengesellschaftInventors: Alan Thomas Leaver, David Brierley
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Patent number: 6551363Abstract: The present invention relates to a dye mixture comprising as component (A) at least one dye of formula as component (B) at least one dye of formula wherein the substituents R1, R2, R3 and R4 are as defined in claim 1, and to the use of that mixture in the dyeing or printing of semi-synthetic or synthetic hydrophobic fiber materials.Type: GrantFiled: September 18, 2000Date of Patent: April 22, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Antoine Clément, Alfons Arquint, Urs Lauk
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Patent number: 6506241Abstract: Compounds of the Formula (1) and salts thereof: wherein: each A independently is N, C—Cl, C—CN or C—NO2; each Ar independently is a substituted aryl group carrying a —COOH group ortho to the azo (—N═N—) group; L is an aliphatic group carrying a —COOH, —SO3H or —PO3H2 group; each Z independently is —SR2, —OR3, —NR4R5 or a labile atom or group; each X independently is —S—, —O— or —NR1—; each R1 independently is H or optionally substituted alkyl; and R2, R3, R4 and R5 are independently H, optionally substituted alkyl, optionally substituted aryl or optionally substituted aralkyl; or R4 and R5 together with the nitrogen to which they are attached form an optionally substituted five or six membered ring, and their use in compositions and inks for ink jet printing processes and ink jet printer cartridges.Type: GrantFiled: July 10, 2000Date of Patent: January 14, 2003Assignee: Avecia LimitedInventors: Julie Ann Stocks, Paul Wight
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Patent number: 6491731Abstract: 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: GrantFiled: May 25, 2000Date of Patent: December 10, 2002Assignee: Ciba Specialty Chemicals CorporationInventor: Frederick Harold Gouzoules
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Patent number: 6482255Abstract: Compounds of the Formula (1) and salts thereof: wherein B1, B2, Q, R1, R2, A, Z1 and Z2 are defined in the description. Also claimed are compositions containing two or more compounds of the Formula (1), inks containing the compounds and compositions, an ink jet printing process using the inks, a substrate printed with the inks, and an ink jet printer cartridge containing an ink containing a compound of the Formula (1).Type: GrantFiled: June 26, 2000Date of Patent: November 19, 2002Assignee: Avecia LimitedInventors: Aidan Joseph Lavery, Colin Dick Robertson, Janette Watkinson, Kathryn Carr, Paul Wight
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Patent number: 6443998Abstract: In one aspect, the invention provides a process for the trichromatic dyeing of polyamide textile fibers wherein the process comprises the steps of: a. providing at least one polyamide fiber; and b. contacting the at least one polyamide fiber with an aqueous dye solution comprising a yellow component, a red component and a blue component, wherein the yellow component comprises a mixture of Acid Orange 156 and Acid Yellow 199 thereby providing a dyed fiber. In a further aspect, the invention provides compositions for the trichromatic dyeing of polyamide fibers.Type: GrantFiled: April 14, 2000Date of Patent: September 3, 2002Assignee: Shaw Industries, Inc.Inventor: Dennis Jones
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Publication number: 20020104173Abstract: The present invention relates to black alcohol soluble dye formulations of high color intensity, low viscosity, and high tinctorial strength. The formulations are particularly useful for writing instruments such as felt tip and roller ball pens.Type: ApplicationFiled: December 7, 2000Publication date: August 8, 2002Inventors: Alejandro Zimin, Michael R. Friswell
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Patent number: 6368362Abstract: The present invention relates to mixtures of reactive dyes comprising at least two dyes selected from the group consisting of the general formulae (1), (2) and (3) where D1, D2, D3, R1, R2, Hal and M 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: GrantFiled: April 19, 2000Date of Patent: April 9, 2002Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Ronald Pedemonte, Uwe Reiher, Christina Schumacher, Martin Kunz, Joachim Eichhorn
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Patent number: 6365718Abstract: The invention provides a dye composition for dyeing fibers comprising (a) an azo dye of formula (II) or a salt thereof, and (b) an azo dye of formula (III) or a salt thereof. The invention provides navy and black dye compositions, especially suitable for dyeing secondary cellulose acetate fibers, with superior fastness properties than known navy/black dyes. Preferably, the &agr;-crystal form of dye (III) is used, which has greater solubility and achieves quicker dyeing than the commonly-used &bgr; and &ggr; forms of (III) when dyeing cellulose acetate at 60-95° C. A new method of making the &agr; form is disclosed.Type: GrantFiled: September 22, 2000Date of Patent: April 2, 2002Assignee: Yorkshire Chemicals PLCInventors: Christopher Whitham, Alan John Buckley, Rebecca Jane Crowson
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Patent number: 6361571Abstract: The object of the present invention is a colorant for the semi-permanent tinting of keratin fibers, said colorant being based on a combination of nonoxidative dyes and polymethine dyes of the tautomeric formula (Ia)/(Ib) and a method for tinting keratin fibers.Type: GrantFiled: January 4, 2000Date of Patent: March 26, 2002Assignee: Wella AktiengesellschaftInventors: Otto Goettel, Aline Pirrello
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Patent number: 6346609Abstract: Cationic azo dyes of the general formula I where R1, R2, R3, A1, A2, B1, B2, An⊖, n and K have the meaning given in the specification are prepared and used for the dyeing and printing of natural or synthetic substrates and mixtures thereof.Type: GrantFiled: May 4, 2001Date of Patent: February 12, 2002Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Torsten Freund, Rainer Tresch
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Publication number: 20010037532Abstract: The present invention relates to methods of dyeing a material which involve contacting the material with a dyeing system which comprises: (a) a mixture of (i) an aromatic diamine and (ii) one or more of a naphthol and an aminonaphthalene and (b) an oxidation system comprising (i) a hydrogen peroxide source and an enzyme exhibiting peroxidase activity or (ii) an enzyme exibiting oxidase activity on one or more of the compounds of mixture (a). The material may be a fabric, yarn, fiber, garment or film made of fur, hide, leather, silk or wool, or made of cationic polysaccharide, cotton, diacetate, flax, linen, lyocel, polyacrylic, synthetic polyamide, polyester, ramie, rayon, triacetate, or viscose.Type: ApplicationFiled: March 8, 2001Publication date: November 8, 2001Applicant: Novozymes A/SInventors: Martin Barfoed, Ole Kirk, Sonja Salmon
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Patent number: 6302924Abstract: Dye mixtures comprising one or more thienyl- and/or thiazole-azo dyes with a coupling component of the aminothiazole, aniline or tetrahydroquinoline series, one or more dyes of the class of the monoazo or disazo dyes, methine dyes, azamethine dyes, anthraquinone dyes, nitro dyes or quinophthalone dyes which have their respective absorption maximum at a wavelength of from 410 to 520 nm and optionally one or more dyes of the class of the monoazo or disazo dyes, methine dyes, azamethine dyes, anthraquinone dyes, nitro dyes or quinophthalone dyes which have their respective absorption maximum at a wavelength of from 600 to 700 nm, the FWHM value of the absorption maximum being at least 2000 cm−1, are useful for thermal transfer and for dyeing or printing synthetic materials.Type: GrantFiled: September 22, 1998Date of Patent: October 16, 2001Assignee: Basf AktiengesellschaftInventors: Karl-Heinz Etzbach, Rüdiger Sens, Claudia Kräh, Frank Wüthner
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Publication number: 20010014733Abstract: Dye mixtures which comprise at least one 1:2 cobalt complex dye of the formazan compound of the formula 1Type: ApplicationFiled: February 22, 2001Publication date: August 16, 2001Inventors: Urs Lehmann, Marcel Frick
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Patent number: 6251174Abstract: A composition comprising: (i) a dye of Formula (1) or a salt thereof: wherein n is 0 or 1; and (ii) at least one dye selected from a dye of the Formula (2), (3), (4), (5), (6), (7) and salts thereof as defined in the description. Also claimed are the above compositions further comprising a water-soluble yellow dye and optionally a water-soluble cyan dye; inks containing the compositions; an ink jet printing process using the inks; and a substrate printed with the inks.Type: GrantFiled: December 23, 1999Date of Patent: June 26, 2001Assignee: Avecia LimitedInventors: Aidan Joseph Lavery, John Parker Meyers
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Patent number: 6159250Abstract: Doubled reactive dyes of the general formula I ##STR1## where Chr is a chromophore residue with or without further fiber-reactive groups and derived from a metallized or unmetallized mono- or disazo dye, from a triphendioxazine, from an anthraquinone, from a metallized formazan or from a metallized phthalocyanine,Z.sup.1, Z.sup.2 and Z.sup.3 are each independently of the others hydrogen or substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl,Hal is fluorine or chlorineL.sup.1 and L.sup.2 are each independently of the other C.sub.2 -C.sub.6 -alkylene with or without interruption by 1 or 2 unadjacent oxygen atoms, andA is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, substituted or unsubstituted phenyl, substituted or unsubstituted C.sub.2 -C.sub.3 -alkenyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxy, substituted or unsubstituted phenoxy or C.sub.1 -C.sub.6 -alkylamino,and their mixtures are prepared and useful for dyeing or printing hydroxyl-containing or nitrogenous substances.Type: GrantFiled: December 22, 1999Date of Patent: December 12, 2000Assignee: BASF AktiengesellschaftInventor: Manfred Patsch
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Patent number: 6159249Abstract: In the dyeing of hydrophobic fibers comprising new synthetic fibers, especially those called micronfine fibers, etc., it is difficult to obtain a dyed product having excellent fastness and it is further difficult to obtained a dyed product excellent also in color rendering. The present invention solved the problem as following:A specific dye composition containing a water-insoluble monoazo disperse dye represented by a specific structural formula is used to dye hydrophobic fibers, especially polyester fibers, comprising micronfine fibers, thereby giving a dyed products excellent in fastness balance and color rendering.Type: GrantFiled: April 22, 1999Date of Patent: December 12, 2000Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yasuo Murakami, Yoshiyuki Sato, Tsuyoshi Kikkawa
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Patent number: 6159251Abstract: The present invention provides a mixture of dyes which comprise one or more monoazo dyestuffs corresponding to the general formula (1) and one or more monoazo dyestuffs corresponding to the formula (2) ##STR1## wherein R1, R2, R3, R4, R5, R6, Y.sub.1, Y.sub.2 and M are defined as given in claim 1, methods for preparing said dye mixtures and methods for dyeing hydroxy and/or carboxamido-containing materials using said dye mixtures.Type: GrantFiled: October 5, 1999Date of Patent: December 12, 2000Assignee: Dystar Textilfarbon GmbH & Co. Deutschland KGInventors: Ron Pedemonte, Joachim Steckelberg, Christian Schumacher
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Patent number: 6132894Abstract: A compound of formula (I) or a mixture thereof ##STR1## The compounds are useful as solvent dyestuffs and exhibit high solubility in alcoholic solvents, e.g. ethanol.Type: GrantFiled: February 3, 1999Date of Patent: October 17, 2000Assignee: Clariant Finance (BVI) LimitedInventors: Bansi Lal Kaul, Dominique Pflieger
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Patent number: 6121352Abstract: 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: GrantFiled: March 18, 1999Date of Patent: September 19, 2000Assignee: Dystar Textifarben GmbH & Co.Inventors: Manfred Hoppe, Kiyoshi Himeno, Ryouichi Sekioka
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Patent number: 6048968Abstract: Cationic azo dyes of the formula I ##STR1## where the variables are as defined in the specification, amines as their intermediates, processes for preparing them, their use for dyeing and printing natural or synthtic substrates, and their mixtures are described.Type: GrantFiled: May 5, 1999Date of Patent: April 11, 2000Assignee: BASF AktiengesellschaftInventors: Karl-Heinz Etzbach, Torsten Freund, Rainer Tresch
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Patent number: 6045593Abstract: The invention is a composition of matter useful as an acid yellow dye having formula (I) ##STR1## wherein: X is hydrogen or SO.sub.3.sup.- M.sup.+ ; M.sup.+ Na.sup.+, Li.sup.+, K.sup.+, NH.sub.4.sup.+, or hydroxyalkylammonium of the formula [H--(OCH.sub.2 CH.sub.2).sub.n ].sub.p NH.sub.m, where n is 1 to 5, p is 1 to 3, and p+m is 4; R.sub.1 is hydrogen, a metal ion, an alkyl or C.sub.1-4, of hydroxyalkyl of C.sub.1-4, and combinations thereof; and R.sub.2 is an unsubstituted aromatic ring or a substituted aromatic ring having at least one substituent, provided that when one of the substituents is SO.sub.3.sup.- M.sup.+, X is hydrogen; and combinations thereof. The invention also includes a process for dyeing a material with this compound and the material so dyed.Type: GrantFiled: April 27, 1999Date of Patent: April 4, 2000Inventor: Howard L. Smith
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Patent number: 6028180Abstract: An ink comprising water, a water-dissipatable polymer and one or more dyes having a benzene ring carrying a hydroxy group at each of the 1-, 3- and 5-positions and an azo group at each of the 2-, 4- and 6-positions or a tautomer thereof.Also claimed are certain dyes, compositions printer cartridges and ink jet printers.Type: GrantFiled: March 18, 1999Date of Patent: February 22, 2000Assignee: Zeneca LimitedInventors: Andrew Paul Shawcross, Gavin Wright, Barry Huston Meyrick, Mark Holbrook
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Patent number: 6024771Abstract: Mixtures of 2:1 Aluminium complexes of the type (Ic) are useful as solvent dyes.Type: GrantFiled: November 13, 1998Date of Patent: February 15, 2000Assignee: Clariant Finance (BVI) LimitedInventors: Dominique Pflieger, Bansi Lal Kaul
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Patent number: 6022957Abstract: 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: GrantFiled: April 17, 1998Date of Patent: February 8, 2000Assignee: BASF AktiengesellschaftInventor: Alan T. Leaver
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Patent number: 6008331Abstract: A compound of the formula (1) ##STR1## or a salt thereof wherein J is a group of the formula (1a) ##STR2## and A, Y, T, T.sup.1, R, R.sup.1, R.sup.4, R.sup.5 and R.sup.6 are as defined in the specification are useful as black colorants for ink jet printing inks.Type: GrantFiled: April 21, 1999Date of Patent: December 28, 1999Assignee: Zeneca LimitedInventors: Peter Gregory, Ronald Wynford Kenyon, Paul Wight
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Patent number: 5964899Abstract: Azo dyes containing sulphur dye entities as a constitutional component are dyes of valuable properties, in particular for the dyeing of leather.Type: GrantFiled: October 8, 1997Date of Patent: October 12, 1999Assignee: Clariant Finance (BVI) LimitedInventors: Jordi Berenguer, Manuel Jose Domingo, Jose Rocas
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Patent number: 5951717Abstract: A dyeing process comprises continuous dyeing of cellulosic circular knit, which comprises impregnating a rope of said circular knit with an aqueous liquor comprising one or more dissolved and/or dispersed dyes, any necessary fixing alkali and optionally further assistants at a temperature between 20 and 95.degree. C., squeezing off said impregnated rope and subsequently feeding said squeezed-off rope without intermediary drying into an apparatus in which said rope is opened out into a crease-free state and said dye is fixed in an unsaturated steam/air mixture which is at 100 to 160.degree. C. at an autogenous wet temperature of the moist rope of between 50 and 95.degree. C. and a fixing time of at least 20 seconds.Type: GrantFiled: March 10, 1998Date of Patent: September 14, 1999Assignee: DyStar Textilfarben GmbH & Co.Inventors: Uwe Mrotzeck, Andreas Schrell, Thomas Nauroschat, Erol Ozcan, Alfred Tressel
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Patent number: 5942603Abstract: This invention related to a novel .beta.-crystal of the compound represented by the following formula (1), ##STR1## which is useful as a dyestuff. The .beta.-crystal of this invention is characterized by being stable in high temperature and having sharp peaks in the powder X-ray diffractometory.This invention is related to a process for producing a said .beta.-crystal, said process comprising heating a known thermally unstable .alpha.-crystal at a temperature higher than 15.degree. C., preferably higher than 40.degree. C. in water, a water-soluble organic solvent, or a solvent comprising water containing an anionic or nonionic surface active agent.Furthermore, this invention is related to a dyestuff composition containing of the said .beta.-crystal, and a process for dyeing comprising employing the said .beta.-crystal.Type: GrantFiled: December 11, 1997Date of Patent: August 24, 1999Assignee: Nippon Kayaku Co., Ltd.Inventors: Yasuo Murakami, Yoshiki Akatani
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Patent number: 5942604Abstract: A dye mixture, which comprises as component (A) a dye of formula as component (B) a dye of formula ##STR1## and/or as component (C) a dye of formula ##STR2## wherein D, X and Y are as defined in the specification. These dyes are particularly suitable for dyeing polyester fiber textile material.Type: GrantFiled: February 20, 1998Date of Patent: August 24, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Paul Herzig, Antoine Clement, Romeo Dreier, Alfons Arquint
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Patent number: 5935274Abstract: Dye mixtures comprising:A) a dye of the formula ##STR1## in which R.sub.1 is C.sub.1 -C.sub.4 alkyl,R.sub.2 is the radical (CH.sub.2).sub.n O--R.sub.5,R.sub.5, independently of R.sub.1, is C.sub.1 -C.sub.4 alkyl andn is the number 1, 2 or 3 andB) a dye of the formula ##STR2## in which R.sub.3 and R.sub.4 independently of one another are C.sub.1 -C.sub.4 alkyl, which are suitable for dyeing or printing textile fiber materials and give dyeings with good allround properties, are described.Type: GrantFiled: March 18, 1998Date of Patent: August 10, 1999Assignee: Ciba Specialty Chemicals CorporationInventor: Jurgen Schaetzer
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Patent number: 5931975Abstract: Dyes of the formula ##STR1## in which A.sub.1 and A.sub.2 independently of one another are the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide dye,R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl,Y.sub.1 and Y.sub.2 independently of one another are halogen, carboxypyridinium, substituted or unsubstituted amino or a heterocyclic radical bonded via a nitrogen atom andn is a number from 1 to 7,are particularly suitable for dyeing or printing fiber materials containing hydroxyl groups or nitrogen. Dyeings with good fastness properties are obtained with a high dyeing yield.Type: GrantFiled: October 16, 1997Date of Patent: August 3, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Bernhard Muller, Patric Nowack
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Patent number: 5925150Abstract: A black colorant composition useful for coloring polyurethanes is provided having a red benzothiazole azo colorant which, when combined with a complementary blue and yellow colorant, exhibits low flairing.Type: GrantFiled: August 20, 1997Date of Patent: July 20, 1999Assignee: Milliken & CompanyInventors: Mark Edward Ragsdale, David Jesse Moody, Eric B. Stephens
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Patent number: 5922089Abstract: A process for dyeing a polyester or polyester-containing textile material at pH 8 to pH 11, which is characterized by applying one or more monoazo dyes of the formula I ##STR1## in which X is (C.sub.1 -C.sub.3)-alkyl,R is (C.sub.1 -C.sub.6)-alkyl andR.sup.1 and R.sup.2, independently of one another, are linear (C.sub.2 -C.sub.4) -alkyl, R.sup.1 and R.sup.2, independently of one another, being (C.sub.3 -C.sub.4)-alkyl if R is methyl.Type: GrantFiled: December 18, 1997Date of Patent: July 13, 1999Assignee: Dystar Japan Ltd.Inventor: Ulrich Buhler
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Patent number: 5910624Abstract: Disperse Dyestuff Mixtures comprising C.I. Disperse Red 82 of the formula (I) ##STR1## and one or more dyestuffs which differ therefrom, of the formula (II) ##STR2## wherein D denotes the radical of a diazo component of the formula ##STR3## or D denotes the radical of a diazo component from the group consisting of 5,6-dichlorobenzothiazol-2-yl, 6,7-dichlorobenzothiazol-2-yl, 6-nitro-benzothiazol-2-yl or 5-nitrothiazol-2-yl, and the other substituents have the meaning given in the description,are stable to spray-drying and have outstanding use properties, in particular in the dyeing of hydrophobic fiber materials.Type: GrantFiled: August 27, 1997Date of Patent: June 8, 1999Assignee: DyStar Textilfarben GmbH & Co. Deutschland KGInventors: Klaus-Wilfried Wanken, Karl-Ulrich Buhler
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Patent number: 5869625Abstract: The present invention relates to colorant blends comprising (a) an azo component, which is a salt of a salt-forming azo pigment of the formulaA--N.dbd.N--B,wherein A is the residue of a diazo component and B is the residue of a coupling component; and (b) a second component, which is an opaque 1,4-diketo-3,6-diaryl-pyrrolo?3,4-c!pyrrole pigment. The colorant blends are especially useful in coating compositions, such as paints.Type: GrantFiled: April 23, 1997Date of Patent: February 9, 1999Assignee: Ciba Specialty Chemical CorporationInventors: Edward Ephraim Jaffe, James Martin Delaney
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Patent number: 5868802Abstract: Disclosed is a disperse dye composition comprising dyes of Formulae (I) and (II). ##STR1## Z.sub.1 is a halogen atom; R.sub.1 is a C.sub.1-4 alkyl group or a hydrogen atom; X.sub.1 and Y.sub.1 each are independently a chlorine atom or a bromine atom; R.sub.2 is a C.sub.1-4 alkyl group or a phenyl group. Using the composition, composite hydrophobic fiber materials can be dyed evenly, and the dyed materials have excellent color fastness.Type: GrantFiled: April 17, 1997Date of Patent: February 9, 1999Assignee: Nippon Kayaku Co., Ltd.Inventors: Yoshiki Akatani, Yasuo Shirasaki, Yasuo Murakami
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Patent number: 5865855Abstract: The new bis-pyrazole aza compounds have the formula (I): ##STR1## wherein R.sub.1, R.sub.1 ', R.sub.2, R.sub.2 ', R.sub.3 and R.sub.3 ' are the same or different, and are each, independently of each other, H, a straight, branched or cyclic alkyl group having 1 to 6 carbon atoms, a straight chain or branched monohydroxyalkyl group or polyhydroxyalkyl group with 1 to 6 carbon atoms, a straight or branched alkoxyalkyl group with 2 to 6 carbon atoms, a straight or branched monoaminoalkyl group or polyaminoalkyl group with 2 to 6 carbon atoms, or an unsubstituted aromatic or heteroaromatic ring, or a substituted aromatic or heteroaromatic ring having one or more halogen, a C.sub.1 - to C.sub.4 -alkyl group, a nitro group, a sulfonic acid group, a carboxylic acid group or a C.sub.1 - to C.sub.4 -alkoxy substituent, or an unsubstituted benzyl group, or a benzyl group substituted with one or more halogen atom, a hydroxy group, a C.sub.1 - to C.sub.4 - alkyl group, a nitro group or a C.sub.1 - to C.sub.Type: GrantFiled: June 24, 1998Date of Patent: February 2, 1999Assignee: Wella AktiengesellschaftInventors: Annelie Doehling, Wolfram Geibel, Otto Goettel