Paper Patents (Class 8/919)
-
Patent number: 12104052Abstract: The present invention relates to a consolidated nonwoven consolidated by treatment with an aqueous binder composition comprising: a polymer P, a polyvinyl alcohol, optional a starch compound S and optional at least one metal compound M selected from the group consisting of magnesium, calcium and zinc, in the form of an oxide, hydroxide, carbonate or bicarbonate, wherein the polymer P is obtainable by free radical aqueous emulsion polymerization of a monomer mixture of 75 to 99% by weight of one or more monomers a) selected from the group consisting of esters of acrylic and/or methacrylic acid with alkanols of 1 to 12 carbon atoms, aliphatic conjugated diene and aromatic vinyl compound 1 to 25% by weight of one or more monomers b) selected from the group consisting of N-methylolacrylamide, N-methylolmethacrylamide, glycidyl methacrylate and carboxylic acid-functional ethylenically unsaturated monomers ?0 to 15% by weight of one or more further ethylenically unsaturated monomer c) different from any of monType: GrantFiled: September 10, 2021Date of Patent: October 1, 2024Assignee: BASF SEInventors: Henrik Schmidt, Stefan Jesberger, Thorsten Habeck
-
Patent number: 11098451Abstract: Improved processes for liberating trichome fibers from non-seed portions of a trichome-bearing host plant are provided. The processes include one or more steps for disassociating trichome fibers that are already separated from leaves, stems, and still-attached fibers so that the separated trichome fibers can be collected and not lost through a waste stream.Type: GrantFiled: April 19, 2019Date of Patent: August 24, 2021Assignee: The Procter & Gamble CompanyInventors: Khosrow Parviz Mohammadi, Scott Christopher Kreider
-
Patent number: 9023118Abstract: The present invention relates to new azo dyes, a process for their preparation, and their use for dyeing or printing fibrous materials, to produce materials with brownish shades.Type: GrantFiled: November 29, 2011Date of Patent: May 5, 2015Assignee: Kemira OYJInventors: Helmut-Martin Meier, Christof Heide, Klaus-Günter Strumpf, Thomas Hübbe
-
Patent number: 9023116Abstract: As associative thickener obtainable by free radical polymerization, the preparation thereof and the use thereof in paper coating slips are described. The associative thickener is formed from (a) acid monomers selected from ethylenically unsaturated C3- to C8-carboxylic acids, (b) associative monomers of the general formula H2C?CR1—COO-(EO)n—(PO)m—R2, in which R1 is hydrogen or methyl, n is a number of at least two, m is a number from zero to 50, EO is an ethylene oxide group, PO is a propylene oxide group and R2 is a C8-C30-alkyl group or a C8-C30-alkaryl group, and (c) nonionic, copolymerizable monomers differing from a) and b), the reaction product having been reacted, after the polymerization, with initiators forming nonionic radicals.Type: GrantFiled: February 1, 2011Date of Patent: May 5, 2015Assignee: BASF SEInventors: Philipp Zacharias, Hermann Seyffer, Ilshat Gubaydullin, Harutyun Hanciogullari, Marc Bothe
-
Patent number: 8979947Abstract: The present invention relates to dyes of the formula (I) in which R1 to R10, D1 and D2 are defined as given in claim 1, a process for preparing them, and their use for dyeing and printing hydroxyl- and/or carboxamido-containing materials.Type: GrantFiled: November 24, 2011Date of Patent: March 17, 2015Assignee: DyStar Colours Distribution GmbHInventors: Roxana Barbieru, Vajiravelu Sivamurugan
-
Patent number: 8945239Abstract: The invention relates to novel inorganic brighteners, a process for their preparation and their use for brightening substrates. More specifically, the novel inorganic brighteners are phosphors characterized in that they have (i) an absorption maximum in the range of from 350 to 375 nm; (ii) a steep decrease of the absorption band near 400 nm; (iii) a quantum yield of the phosphorescence of at least 0.8; and (iv) a phosphorescence maximum in the range between 415 and 445 nm.Type: GrantFiled: April 10, 2007Date of Patent: February 3, 2015Assignee: Ciba Corp.Inventors: Christian Fabian, Bernhard Seider, Hans Reichert
-
Patent number: 8921564Abstract: The invention relates to basic bisazo compounds according to formula (I) wherein all substituents are defined as in Claim 1, their production, their use as dyestuffs as well as material dyed with these dyestuffs.Type: GrantFiled: July 25, 2007Date of Patent: December 30, 2014Assignee: Clariant Finance (BVI) Ltd.Inventors: Ludwig Hasemann, Friedrich Lehr, Martin Oberholzer, Heidrun Schene
-
Mixtures of fibre-reactive dyes and their use in a method for di- or trichromatic dyeing or printing
Patent number: 8911509Abstract: Reactive dye mixtures comprising at least one red dyeing dye and at least one blue, yellow, orange or brown dyeing dye and their use in methods for the dichromatic or trichromatic dyeing or printing of cellulosic fiber materials are described. The reactive dye mixtures yield dyeings or prints having good reproducibility and good all-round fastness properties.Type: GrantFiled: January 13, 2011Date of Patent: December 16, 2014Assignee: Huntsman International LLCInventors: Athanassios Tzikas, Georg Roentgen, Marco Casartelli, Remo Codemo, Jean-Francois Landre -
Patent number: 8101731Abstract: 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: GrantFiled: March 29, 2010Date of Patent: January 24, 2012Inventors: Michael Lennartz, Adolf Käser, Sandra Weiss
-
Patent number: 8038737Abstract: A method of modulating a stability of a sulfonated dye, particularly its ozonefastness is provided. The method comprises providing a salt of the dye, wherein the salt comprises at least one organic cation selected from the group consisting of: a first organic cation having a positive charge delocalized between a nitrogen atom and at least one other heteroatom; a second organic cation having a positive charge delocalized between a nitrogen atom and at least two other atoms; and a third organic cation of formula (A): wherein: Rp, Rq and Rr are each independently selected from a C1-6 alkyl group; s is 0, 1, 2 or 3; and Ar is a C6-12 aryl group or C3-12 heteroaryl group.Type: GrantFiled: February 10, 2009Date of Patent: October 18, 2011Assignee: Silverbrook Research Pty LtdInventors: Sutharsiny Indusegaram, Graciel Gonzaga, Simone Charlotte Vonwiller, Scott Matthew Starling, Lachlan Everett Hall, Damon Donald Ridley, Kia Silverbrook
-
Patent number: 8034129Abstract: The invention relates to an aqueous dye solution comprising a) 5 to 30% by weight of an anionic or cationic direct dye, b) 0.01 to 5% by weight of the compound of formula (1), in which M represents hydrogen, an alkali metal or alkaline earth metal, ammonium or ammonium, that is mono-, di-, tri- or tetra-substituted by C1-C4alkyl or C2-C4hydroxyalkyl or mixtures thereof, c) 0 to 10% by weight of an inorganic or an organic acid, d) 0 to 20% by weight of further additives and e) water to complete to 100%, with the proviso that direct dyes of the formula (2) in which K is a residue of a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series and M is as defined above, are excluded, a process for their preparation and the use thereof for dyeing paper.Type: GrantFiled: May 8, 2006Date of Patent: October 11, 2011Assignee: BASF SEInventors: Holger Lautenbach, Adolf Käser
-
Patent number: 7909892Abstract: The present invention relates storage stable aqueous dye solutions comprising a) 5 to 30% by weight of a dye of the formula in which K is a residue of a coupling component of the acetoacetanilide, pyridone, pyrazolone or pyrimidine series and M is hydrogen, an alkali metal or alkaline earth metal, ammonium or alkyl ammonium, b) 0.05 to 5% by weight of one or more compounds of the formula or a residue of the formula in which A, X, Y, R, P and Q are defined herein, c) an organic or an inorganic base or mixtures thereof, d) if desired, further additives and e) water, a process for their preparation and the use thereof for the dyeing, in particular of paper.Type: GrantFiled: January 21, 2003Date of Patent: March 22, 2011Assignee: BASF SEInventors: Holger Lautenbach, Adolf Käser, Michael Heneghan
-
Patent number: 7789917Abstract: A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4?-diamino-2,2?-stilbene disulfonic acid, biarylsulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, biaryldisulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.Type: GrantFiled: August 5, 2008Date of Patent: September 7, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kai Kong Iu, Gary Larson, Hai Q Tran, William A Houle
-
Patent number: 7723494Abstract: 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: GrantFiled: January 4, 2008Date of Patent: May 25, 2010Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Lennartz, Adolf Käser, Sandra Weiss
-
Patent number: 7686851Abstract: 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: GrantFiled: March 4, 2005Date of Patent: March 30, 2010Assignee: Clariant Finance (BVI) LimitedInventor: Heidrun Schene
-
Patent number: 7531009Abstract: The present invention provides 6-azo-5,5?-dihydroxy-7,7?-disulfo-2,2?-dinaphthylamine derivatives, their use as dyes, dyed paper and formulations comprising them.Type: GrantFiled: January 11, 2006Date of Patent: May 12, 2009Assignee: Ciba Specialty Chemicals CorporationInventor: Holger Lautenbach
-
Patent number: 7527657Abstract: A liquid preparation of a paper dye comprising a) 15 to 50% by weight of the dye of the formula CuPc[SO2NH(CH2)3N(CH3)2]2 to 3[SO3H]1 to 2 (1), in which CuPc represents copper phthalocyanine, or the alkali metal salt of (1), b) 5 to 15% by weight of ?-caprolactam, c) 1 to 8% by weight of formic acid, d) 1 to 7% by weight of benzyl alcohol, e) 0 to 3% by weight of a lower aliphatic organic acid, f) 0 to 5% by weight of an inorganic salt and g) water, to complete to 100% by weight, a process for the production of said preparation and the use thereof for dyeing, in particular dyeing of paper.Type: GrantFiled: January 20, 2004Date of Patent: May 5, 2009Assignee: Ciba Specialty Chemicals Corp.Inventors: Adolf Käser, Charles Hunger
-
Patent number: 7351808Abstract: 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: GrantFiled: July 17, 2003Date of Patent: April 1, 2008Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Lennartz, Sandra Weiss
-
Patent number: 7166710Abstract: The present invention relates to novel cationic dye of formula (1) and (1a) wherein A is an organic radical of formula (2) or (3) wherein R1 and R2 are each independently of the other unsubstituted or substituted C1–C14alkyl or an aryl radical, R3 is hydrogen, unsubstituted or substituted C1–C14alkyl, unsubstituted or substituted C1–C14alkoxy, cyan or halogenid, R4 is hydrogen, unsubstituted or substituted C1–C14alkyl or an aryl radical, and X? is an anion. Further, the present invention relates to compositions thereof, especially comprising other dyes, to processes for the preparation thereof and to the use thereof in the dyeing of organic material, such as keratin, wool, leather, silk, paper, cellulose or polyamides, and preferably human hair.Type: GrantFiled: March 16, 2004Date of Patent: January 23, 2007Assignee: Ciba Specialty Chemicals CorporationInventors: Victor Paul Eliu, Beate Fröhling
-
Patent number: 7078497Abstract: 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: GrantFiled: December 19, 2001Date of Patent: July 18, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Adolf Käser, Holger Lautenbach
-
Patent number: 7066969Abstract: The present invention relates to novel compounds of the formulae A, D1, D2, R1 and n are as defined in the description the compounds being in an internal or external salt form, or mixtures of compounds (1) and (2), a process for their preparation and preparations containing them used for dyeing paper.Type: GrantFiled: July 11, 2002Date of Patent: June 27, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Lennartz, Dölf Käser, Sandra Weiss
-
Patent number: 6994734Abstract: An aqueous liquid composition characterized by containing an alkali salt, an alkali metal salt, an alkali earth metal salt or an ammonium salt of a compound represented by the following formula (1). in the form of free acid in an amount of 10–40 mass % and inorganic salt in an amount of 1.1–10 mass % can easily be produced without a desalting process or the like which has been included in a conventional process and it has an excellent storage stability and excellent fluorescent brightening effect.Type: GrantFiled: March 20, 2002Date of Patent: February 7, 2006Assignee: Nippon Kayaku Kabushiki KaishaInventors: Toru Yamaguchi, Nobutaka Yamamoto
-
Patent number: 6984723Abstract: 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: GrantFiled: December 19, 2001Date of Patent: January 10, 2006Assignee: Ciba Specialty Chemicals CorporationInventor: Adolf Käser
-
Patent number: 6933371Abstract: Disclosed are bisazo compounds of the formula Ia or Ib where R1 is hydrogen or methyl, the X groups are independently —CH2CH2— or —CH2CH2CH2—, R2, R3, and R4 are independently hydrogen or methyl, A is an anion and n corresponds to the valency of A. Also disclosed are the use of the bisazo compounds for dyeing, especially paper, and colorants containing said bisazo compounds.Type: GrantFiled: September 13, 2001Date of Patent: August 23, 2005Assignee: BASF AktiengesellschaftInventors: Gunter-Rudolf Schröder, Sophia Ebert, Karl-Heinz Etzbach, Rainer Tresch, Rüdiger Sens
-
Patent number: 6893473Abstract: Whitened fluff pulp and methods for making whitened fluff pulp. The whitened pulp is a fluff pulp that has been treated with one or more of a white pigment, a colorant, or a fluorescent whitening agent.Type: GrantFiled: May 7, 2002Date of Patent: May 17, 2005Assignee: Weyerhaeuser.CompanyInventors: Amar N. Neogi, Hugh West, David L. Lee
-
Patent number: 6860906Abstract: 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: GrantFiled: May 21, 2001Date of Patent: March 1, 2005Assignee: Ciba Specialty Chemicals CorporationInventors: Jacek Malisz, Adolf Käser, Rainer Kaufel, Holger Lautenbach, Elke Polley, Martina Hoffmann
-
Patent number: 6858255Abstract: The present invention is a thickened dye composition and method of applying same to a paper web that produces colored or patterned paper having good bleed resistance. The dye composition of the invention includes a binder; a dye; a thickener selected from the group consising of polyvinylpyrrlidone homopolymers, polyvinylpyrrolidone copolymers, and mixtures thereof; and water. The present invention also includes colored or patterned papers prepared using this conposition.Type: GrantFiled: December 15, 2003Date of Patent: February 22, 2005Assignee: BASF CorporationInventors: James A. Deckers, Stephen S. Jose, Michael T. Jennings
-
Patent number: 6846956Abstract: Described is a triarylmethane dye of the formula I where R1 and R2 are independently methyl, ethyl or hydroxyethyl, Q is substituted or unsubstituited phenyl or naphthyl and A? is the equivalent of an anion. It does not detach carcinogenic Michler's ketone.Type: GrantFiled: August 14, 2001Date of Patent: January 25, 2005Assignee: BASF AktiengesellschaftInventors: Hellmut Kast, Thomas Gessner, Rainer Tresch
-
Patent number: 6723846Abstract: The present invention relates to compounds having formula (1): wherein each R1 represents, independently, a linear C1-C4-alkylene residue which is unsubstituted or substituted by hydroxy, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-hydroxy- or alkoxy-alkoxy, —OCOM, —OCOC1-C4-alkyl, or an amino acid residue from which a hydrogen atom on the amino group has been removed; each R2 represents, independently, a linear C1-C4-alkylene residue which is unsubstituted or substituted by hydroxy, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-hydroxy- or alkoxy-alkoxy, —OCOM, —OCOC1-C4-alkyl, —CO2M, CO2C1-C4-alkyl SO3M or phenoxy which is unsubstituted or substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, —CO2M or CO2C1-C4-alkyl, NH3 or mono- or disubstituted amino; or phenyl which is unsubstituted or substituted by 1 to 3 SO3M, SO2NHC1-C4-alkyl, —SO2NH2, —CO2M, —CO2M, —CO2C1-C4-alkyl, —CONH2, —CONHC1-C4-alkyl, —NHCOC1-C4-alkyl or mono- or disubstituted amino groups;Type: GrantFiled: March 6, 2002Date of Patent: April 20, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Georges Metzger, Serge Hauger, Fabienne Cuesta, Christophe Bulliard, Peter Rohringer, Marc Roger Grienenberger
-
Patent number: 6660048Abstract: The aqueous dye solutions of the composition shown in claim 1 are distinguished by a good storage stability and are suitable for dyeing paper in red color shades.Type: GrantFiled: April 17, 2001Date of Patent: December 9, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Alfred Höhener, Roland Frick, Adolf Kaeser
-
Publication number: 20030208859Abstract: Whitened fluff pulp and methods for making whitened fluff pulp. The whitened pulp is a fluff pulp that has been treated with one or more of a white pigment, a colorant, or a fluorescent whitening agent.Type: ApplicationFiled: May 7, 2002Publication date: November 13, 2003Inventors: Amar N. Neogi, Hugh West, David L. Lee
-
Patent number: 6635092Abstract: Disclosed are dye mixtures for shading white paper which may contain fluorescent brightener. The dye mixtures comprise a violet dye according to the formula (1) or (2) indicated in claim 1 and sufficient of a red, blue or further violet anionic azo dye that this dye mixture is capable of producing in the Cielab color co-ordinates system a relative hue angle of 270 to 295° when the dyeing contains 0.00005 to 0.005% by weight of dye, based on the weight of the paper, with the proviso that the value 0.005% is excluded.Type: GrantFiled: July 11, 2001Date of Patent: October 21, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: Adolf Käser, Wolfgang Schlenker
-
Patent number: 6630056Abstract: An intensely colored transparent and/or translucent paper has chroma c and brightness L, as measured by a Hunterlab instrument, which measures the Cartesian coordinates a, b, L of a point P of color and its polar coordinates H and c. The paper is such that the ratio of c to L is higher than 30%, preferably higher than 50%. The paper contains a colorant in the stock, preferably 5 to 10% by weight of liquid coloring agent in relation to the weight of the finished paper. The colorant is a coloring agent which fixes directly in the cellulose. The paper is suitable for printing and/or writing.Type: GrantFiled: December 13, 1999Date of Patent: October 7, 2003Assignees: Thibierge & Comar, Arjo Wigging Fine Papers LimitedInventors: Emeric Thibierge, Jean-Francois Loeillot, James Christopher Body, Robert Graham Bracewell
-
Patent number: 6569212Abstract: Phthalocyanine compounds of Formula (1) have utility as colorants in inks for ink-jet printing, where Formula (1) represents: and all IJP-effective forms of such compounds; and in which M represents a metal or H; Pc represents a phthalocyanine nucleus of Formula (2) x+y+z represents an average from 3 to 4; and z may be zero. A represents C1-4-alkylene; R1, R3 each independently represent H or C1-4-alkyl; R4 represents H; or C1-4-alkyl optionally substituted with hydroxy; R5 represents a carboxylic acid substituted aryl group; and R2 represents H, C1-4-alkyl or a group of formula BD where: B represents C1-4-alkylene; and D represents NR6R7;or SC1-4alkyleneSO3H; where: R6 represents H; or C1-4alkyl, optionally subsititued by hydroxy; R7 represents H; C1-4alkyl, optionally subsititued by hydroxy or morphlino; or R6 and R7 together with the N atom to which they are attached form a morpholino or piperazino ring.Type: GrantFiled: February 27, 2001Date of Patent: May 27, 2003Assignee: Avecia LimitedInventor: Kathryn Carr
-
Patent number: 6562115Abstract: Monoazo dyes of formulas (III) wherein R1, R2, R3, D1 and M 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: GrantFiled: May 29, 2001Date of Patent: May 13, 2003Assignee: Ilford Imaging Switzerland GmbHInventors: Kurt Baettig, Gérald Jan
-
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
-
Patent number: 6464735Abstract: The present invention provides new compounds having the formula: in which X is O or, preferably, NH; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; n is 1 or 2; and each R2, independently, is hydrogen, C1-C3alkyl, halogen, cyano, COOR in which R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, SO3M in which M has its previous significance or, when n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl; provided that those compounds are excluded in which a) X is NH, n is 1 and R2 is SO3M in which M has its previous significance; or b) X is NH, n is 2 and one R2 is SO3M in which M has its previous significance, and the other R2 is hydrogen, methyl or halogen; or c) X is NH, n is 1, R1 is glType: GrantFiled: January 22, 2001Date of Patent: October 15, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Rohringer, Georges Metzger, Dieter Reinehr
-
Patent number: 6458169Abstract: The present invention provides new compounds having the formula: in which X is O or, preferably, NH; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; n is 1 or 2; and each R2, independently, is hydrogen, C1-C3alkyl, halogen, cyano, COOR in which R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, SO3M in which M has its previous significance or, when n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl; provided that those compounds are excluded in which a) X is NH, n is 1 and R2 is SO3M in which M has its previous significance; or b) X is NH, n is 2 and one R2 is SO3M in which M has its previous significance, and the other R2 is hydrogen, methyl or halogen; or c) X is NH, n is 1, R1 is glType: GrantFiled: January 22, 2001Date of Patent: October 1, 2002Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Rohringer, Georges Metzger, Dieter Reinehr
-
Publication number: 20020083532Abstract: Anionic coloring agents comprising at least one spacer arm bounded to their chemical structure. These anionic coloring agents have the following general formula: CA-BE, wherein, CA is an anionic coloring agent comprising at least a cromophore group; and BE is the spacer arm, which has the following chemical structure: —(X—R—Z)r, wherein X is a direct link or a group having the formula —S(O)s, wherein s is 0, 1 or 2; or —NR1—, wherein, R1 is hydrogen or a C1-C10 alkyl group; R is a C1-C10 straight or branched alkylene group: Z is a polar group; and r is an integer equal or higher than 1.Type: ApplicationFiled: December 18, 2001Publication date: July 4, 2002Inventor: Jorge Mazza
-
Patent number: 6365719Abstract: Compounds of formula (I) with the meanings of D, R1, R2, X and Y as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks.Type: GrantFiled: March 27, 2000Date of Patent: April 2, 2002Assignee: Clariant Finance (BVI) LimitedInventor: Friedrich Lehr
-
Patent number: 6350862Abstract: Reactive Dye compound having formula (I) wherein: D is a chromophore group; L is a linking moiety; Q is a quaternized nitrogen derivative; X and Y are independently selected from chlorine, bromine, fluorine or hydrogen; A is selected from halogen, preferably chlorine or fluorine; provided that at least one of X and Y is fluorine; A is selected from halogen, preferably chlorine or fluorine; and salts and esters thereof.Type: GrantFiled: October 2, 2000Date of Patent: February 26, 2002Assignee: The Procter & Gamble CompanyInventors: Earl David Brock, David Malcolm Lewis, Taher Iqbal Yousaf
-
Publication number: 20020017218Abstract: 1Type: ApplicationFiled: May 29, 2001Publication date: February 14, 2002Applicant: ILFORD IMAGING SWITZERLAND GmbHInventors: Kurt Baettig, Gerald Jan
-
Patent number: 6331626Abstract: The present invention provides a hydrate of the 4,4′-di-triazinylamino-2,2′-di-sulfostilbene compound having the formula: in which M and M1 independently represent hydrogen, an alkaline-, an alkaline earth metal or ammonium, x is a number within the range of from 1 to 30, and the crystal form of the hydrate (I) being characterised by an X-ray diffraction pattern which is essentially as set out in the accompanying FIGS. 1 to 11; or a mixture containing one or more of the hydrates of the 4,4′-di-triazinylamino-2,2′-di-sulfostilbene compound having the formula (I); processes for the preparation of the new hydrates; and the use of the new hydrates for the preparation of concentrated aqueous formulations of fluorescent whitening agents.Type: GrantFiled: September 21, 2000Date of Patent: December 18, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Rohringer, André Geoffroy, Andreas Burkhard, Erwin Marti, Werner Schreiber, Josef Zelger
-
Patent number: 6320031Abstract: 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: GrantFiled: February 23, 2000Date of Patent: November 20, 2001Assignee: Ilford Imaging Switzerland GmbHInventors: Kurt Baettig, Gérald Jan
-
Patent number: 6302923Abstract: Compounds of formula (I) with the meanings of R1, R1′, R2, R2′, X, X′, Y, Y′, m and n as given in claim 1 can be used as paper dyes or direct dyes or for the preparation of ink-jet inks.Type: GrantFiled: May 19, 2000Date of Patent: October 16, 2001Assignee: Clariant Finance (BVI) LimitedInventor: Ludwig Hasemann
-
Patent number: 6281338Abstract: Mono- or dipotassium salts of azo compounds conforming to the formula (I) or one of its tautomeric structures where R and R′ are independently OH, NH2, NH—CN, acylamino or arylamino and R1 and R1′are independently —OH or —NH2, and also their hydrates.Type: GrantFiled: September 19, 2000Date of Patent: August 28, 2001Assignee: Bayer AktiengesellschaftInventors: Richard Sommer, Frank Linke, Udo Herrmann
-
Patent number: 6241789Abstract: Process for dyeing or printing paper, films of plastic or fibre material containing hydroxyl groups or containing nitrogen with reactive dyes, which comprises using at least one reactive dye of the formula (1) from the following group a) and at least one reactive dye from the following groups b), c) and d): a) green- or blue-dyeing reactive dyes of the formula (1) b) blue-dyeing reactive dyes of the formula (2) or (3) c) red-dyeing reactive dyes of the formula (4) d) yellow- or orange-dyeing reactive dyes of the formula (5)Type: GrantFiled: April 3, 2000Date of Patent: June 5, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Scheibli, Peter Aeschilmann, Urs Lehmann, Marcel Frick
-
Patent number: 6221114Abstract: Dye salts which are free from fiber-reactive radicals and have the formula where Chr is an (m+n)-valent radical of a chromophore from the series of the metal-free or metal-containing phthalocyanines, of the quinacridones, of the mono-, dis- or polyazo dyes, of the anthraquinones or copper formazans, Ar is phenyl or naphthyl each of which is unsubstituted or substituted, x⊕ is a metal cation or ammonium ion, y⊕ is a proton, metal cation or ammonium ion, m is 1 to 6 and n is 1 to 6, the sum of m and n being not more than 7, are used in methods of dyeing or printing polymeric material and in dye preparations.Type: GrantFiled: September 17, 1999Date of Patent: April 24, 2001Assignee: BASF AktiengesellschaftInventors: Frank Würthner, Rüdiger Sens, Günther Seybold, Karl-Heinz Etzbach
-
Patent number: 6221113Abstract: 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: GrantFiled: January 13, 1998Date of Patent: April 24, 2001Assignee: Clariant Finance (BVI) LimitedInventor: Jürgen Geiwiz
-
Patent number: 6210449Abstract: The present invention provides new compounds having formula (1), in which X is 0 or, preferably, NH; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; n is 1 or 2; and each R2, independently, is hydrogen, C1-C3alkyl, halogen, cyano, COOR in which R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, SO3M in which M has its previous significance or, when n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl; provided that those compounds are excluded in which a) X is NH, n is 1 and R2 is SO3M in which M has its previous significance; or b) X is NH, n is 2 and one R2 is SO3M in which M has its previous significance, and the other R2 is hydrogen, methyl or halogen; or c) X is NH, n is 1, R1 is glycine and R2 is H or CType: GrantFiled: September 20, 1999Date of Patent: April 3, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Rohringer, Georges Metzger, Dieter Reinehr