Dye Concentrate Composition Wherein An Additional Amount Of A Constituent Of The Composition Must Be Added Before Use Patents (Class 8/527)
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Patent number: 4711642Abstract: Liquid water-containing concentrated reactive dye-stuff preparations of monofluorotriazinyl reactive dye-stuffs with a pH value of at least 8, preferably 8.5-10, are stable on storage and display no noticeable hydrolysis, even after prolonged storage.Type: GrantFiled: September 11, 1986Date of Patent: December 8, 1987Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf
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Patent number: 4708719Abstract: A disperse dye concentrate for use in non-aqueous solvent systems, employing a disperse dye, comprises 10-95% by weight of dry disperse dye, free of water-soluble dispersing agents, admixed with one or more of:(A) a cycloaliphatic diester of the formula ##STR1## wherein R is straight or branched chain alkyl of 4-20 carbon atoms, polyoxyalkylene of the formula HO(CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.2 --, HO(C.sub.3 H.sub.6 O).sub.n C.sub.3 H.sub.6 --, HO(CH.sub.2 CH.sub.2).sub.p (C.sub.3 H.sub.6 O).sub.q C.sub.3 H.sub.6 -- or HO(C.sub.3 H.sub.6 O).sub.p (CH.sub.2 CH.sub.2 O).sub.q CH.sub.2 CH.sub.2 -- or phosphated polyoxyalkylene, wherein n is 2-22 and the sum of p+q is n;(B) a high boiling aromatic ester of the formulaArCOOR.sub.2 IIor ArCOO--R.sub.1 --OOCAr IIIwherein R.sub.1 is alkylene of 2-8 carbon atoms or polyoxyalkylene of the formula --C.sub.r H.sub.2r (OC.sub.r H.sub.2r).sub.s --, in which r is 2 or 3 and s is 1 to 15; R.sub.Type: GrantFiled: November 8, 1984Date of Patent: November 24, 1987Assignee: Crucible Chemical CompanyInventors: Robert B. Wilson, William F. Pomeroy
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Patent number: 4705524Abstract: The invention relates to dye compositions for preparing level dyeings on carboxamide- or hydroxyl-containing fiber materials of comparatively good light fastness properties, which contain dioxazine dyes I (Ia and/or Ib) and II (one or more of IIa to IId) in a weight ratio of 90:10 to 10:90 ##STR1## where in each case independently of one another Z denotes vinyl or .beta.-sulfatoethyl,Z' denotes vinyl-SO.sub.2 or .beta.-sulfatoethyl-SO.sub.2 --,R denotes sulfo or --SO.sub.2 --NR.sup.8 R.sup.9, wherein R.sup.8 is H or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl and R.sup.9 is H, C.sub.1 -C.sub.4 -alkyl which can be substituted by sulfato, sulfo, carboxyl or phosphato, or is an arylated C.sub.1 -C.sub.4 -alkyl group which can be substituted in the aryl radical by sulfo or carboxyl,R.sup.1 denotes H or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,R.sup.2 denotes C.sub.1 -C.sub.Type: GrantFiled: November 25, 1986Date of Patent: November 10, 1987Assignee: Hoechst AktiengesellschaftInventors: Manfred Hahnke, Marcos Segal
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Patent number: 4702744Abstract: Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by replacing, with the aid of ion exchangers, the cations which cause sparing solubility.Type: GrantFiled: May 27, 1986Date of Patent: October 27, 1987Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Jochen Koll, Karlheinz Wolf, Reinhold M. Klipper, Peter M. Lange
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Patent number: 4702743Abstract: A liquid dye preparation comprising an aqueous solution containing at least 0.5% by weight of a water-soluble anionic dye and at least 0.1% by weight of a surfactant of the formula: ##STR1## wherein R represents a non-ionic substituent,m represents an integer from 0 to 3,X represents a divalent bridging atom or group,Y represents a C.sub.2-4 alkylene radical,n represents an integer of at least 2, andZ represents hydrogen, akyl, sulpho or phosphino.Type: GrantFiled: May 5, 1986Date of Patent: October 27, 1987Assignee: Imperial Chemical Industries PLCInventors: Patrick O'Callaghan, Henry R. Murton
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Patent number: 4693725Abstract: An aqueous liquid dye composition improved in storage stability, which comprises a bifunctional reactive dye of the following formula, ##STR1## wherein D is an organic dye residue having at least one sulfonic acid group, R.sub.1 and R.sub.2 are independently a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an substituted or substituted phenylene or naphthylene group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a splittable group by an alkali, in an amount of 5 to 50% by weight based on the weight of the liquid dye composition, the liquid dye composition having a pH value of from 3 to 7.Type: GrantFiled: February 20, 1986Date of Patent: September 15, 1987Assignee: Sumitomo Chemical Company, LimitedInventors: Noriaki Yamauchi, Shinnei Ikeou, Kunihiko Imada
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Patent number: 4689048Abstract: A process for the preparation of formulations of water-soluble organic dyes starting from an aqueous salt-containing suspension of the untreated dye and using membrane separation methods, which process comprises substantially freeing the aqueous suspension of the untreated dye from by-products and reducing the salt concentration by more than half in a first membrane separation treatment, then diluting the dye suspension in a further optional step and effecting deionization and concentration in a second membrane separation treatment and converting the concentrate so obtained into a liquid or solid commercial formulation. This multi-step membrane separation process, e.g. ultrafiltration combined with hyperfiltration, results in a high rate of permeation through the membrane and avoids operating problems caused by membrane clogging.Type: GrantFiled: March 28, 1986Date of Patent: August 25, 1987Assignee: Ciba-Geigy CorporationInventors: Bruno Fortsch, Alberto Rabassa, Beat Bruttel
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Patent number: 4685933Abstract: Concentrated aqueous solutions of dyestuffs having water-solubilizing groups which contain cyanamides of the formula ##STR1## wherein R.sub.1 =NHCN, NHCONH.sub.2 or NHCONHCH.sub.3 where n=0 andm=1 or n=1 and m=0,have a long shelf life, in particular also in the case of reactive dyestuffs.Type: GrantFiled: June 24, 1985Date of Patent: August 11, 1987Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf, Werner Marschner
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Patent number: 4673410Abstract: The present disclosure is concerned with enhancing the solubility of dispersed anionic dyes upon the dilution of their dispersions with room temperature water. Concentrated dispersions of such dyes with acceptable stability and low shear viscosities are disclosed which are more readily diluted to dissolve the dispersed dyestuff because they contain certain chelating agents are described. These agents have at least one free or appropriately neutralized acid group, with carboxylic acid groups being preferred. The appropriae cations include ammonium or lithium ions. The free acid groups are subsequently neutralized with these appropriae cations so that the final dispersions are preferably about neutral, i.e have pH values about 7. A further improvement to the dilutability by the addition of a surfactant, preferably a non-ionic surfactant, is also discssed.Type: GrantFiled: November 19, 1985Date of Patent: June 16, 1987Assignee: Mobay CorporationInventors: Charles W. Sandefur, Thomas J. Thomas
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Patent number: 4665107Abstract: A process for modifying colorants which comprise an active ingredient of solid primary particles in the submicron range by an encapsulation with polymer starting materials that are not substantially altered during the process. Writing fluids, textile colorants and cosmetic inks are disclosed wherein the intrinsic physical qualities of a solid active material are modified to create a stable aqueous dispersion with performance and rheology characteristic of the polymer, and not of the active ingredient.Type: GrantFiled: March 21, 1986Date of Patent: May 12, 1987Assignee: Koh-I-Noor Rapidograph, Inc.Inventor: Fortunato J. Micale
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Patent number: 4654045Abstract: The present invention is a process for the preparation of concentrated anionic red dye solutions which are storage stable. The process allows manufacture of a solution of a dye having the formula: ##STR1## wherein R.sub.1 is --SO.sub.2 N(CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3).sub.2, --SO.sub.2 N(C.sub.6 H.sub.5)(CH.sub.2 CH.sub.3), --SO.sub.2 N(CH.sub.3)(C.sub.6 H.sub.11), or --CF.sub.3 ;R.sub.2 is --H, --Cl or ##STR2## and R.sub.3 is lower alkyl M is ##STR3## wherein R.sub.4 and R.sub.5 are --H or --CH.sub.3 independently andm+n+q.ltoreq.9, but >0,by reacting a dye having the structure: ##STR4## wherein R.sub.1 is --SO.sub.2 N(CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.3).sub.2, --SO.sub.2 N(C.sub.6 H.sub.5)(CH.sub.2 CH.sub.3), --SO.sub.2 N(CH.sub.3)(C.sub.6 H.sub.11), or --CF.sub.3 ;R.sub.2 is --H, --Cl or ##STR5## wherein R.sub.3 is lower alkyl, andX is NH(R.sub.6).sub.3,wherein R.sub.Type: GrantFiled: January 30, 1986Date of Patent: March 31, 1987Assignee: Crompton & Knowles CorporationInventor: Jay E. Rowe
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Patent number: 4648883Abstract: The invention relates to a process for the preparation of a storage stable aqueous formulation of anionic dyes, which process comprises treating the aqueous dye solution and/or dispersion with a polymeric anion exchanger, simultaneously and/or subsequently subjecting the resin-bonded dye to a mechanical wet grinding, in the presence of a nonionic dispersant, and adding to the resultant aqueous dispersion the assistants customarily present in the liquid dye formulations.The process makes it possible to precipitate anionic dyes in virtually quantitative yield from aqueous solution and to prepare storage-stable dye dispersions.Type: GrantFiled: July 16, 1985Date of Patent: March 10, 1987Assignee: Ciba-Geigy CorporationInventor: Nitya G. Podder
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Patent number: 4648884Abstract: The invention relates to aqueous/organic or purely organic solutions of anionic dyes, the principal feature of which solutions is that they contain the dye or dyes, dissolved in a C.sub.1 -C.sub.4 monoalkyl ether of propylene glycol, or of butylene glycol, or in a C.sub.1 -C.sub.4 carboxylic acid ester thereof, or in a mixture of these solvents. Such dyestuff solutions are storage stable and are especially suitable for spray dyeing leather.Type: GrantFiled: July 17, 1985Date of Patent: March 10, 1987Assignee: Ciba-Geigy CorporationInventor: Zdenek Koci
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Patent number: 4612015Abstract: Novel liquid dye formulations which contain organic carbonates in addition to conventional components are very useful for dyeing organic substrates.Type: GrantFiled: July 8, 1985Date of Patent: September 16, 1986Assignee: BASF AktiengesellschaftInventor: Rainer Dyllick-Brenzinger
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Patent number: 4602915Abstract: A new storage-stable solution of the reactive dyestuff of the formula ##STR1## wherein CuPc=the radical of a Cu phthalocyanine dyestuff,m=1, 2 or 3,n=1, 2 or 3,m+n=3 to 4 andM.sup..sym. =H.sup..sym., an alkali metal cation or an ammonium ion,is provided.The storage-stable solution according to the invention is characterized in that it contains 10-35% by weight of reactive dyestuff (1), 10-30% by weight of solubilizing agent, 0-10% by weight of anionic dispersing agent, 0-7% by weight of inorganic salts, such as Na.sub.2 SO.sub.4, Li.sub.2 SO.sub.4 and the like, and 0.1-3% by weight of buffer (pH 4-7), the remainder to make up to 100% by weight being water.Type: GrantFiled: January 17, 1985Date of Patent: July 29, 1986Assignee: Bayer AktiengesellschaftInventors: Joachim Wolff, Karlheinz Wolf
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Patent number: 4592756Abstract: A dye solution composition containing a black dye obtained by the action of at least one acid or its salt:HO(CH.sub.2).sub.n SO.sub.3 H, Cl(CH.sub.2).sub.n COOH, Br(CH.sub.2).sub.n COOH (n=1 or 2)on one or a mixture of dyes of the formula (I): ##STR1## wherein R is phenylene or naphthylene residue; X and X' are each H, sulfonic acid group or sulfonate group; Y and Y' are each H or alkali metal; R' is one of amino group-containing radicals: ##STR2## (the carboxyl group may be carboxylate group and the sulfonic acid group may be sulfonate group), except that when R' has not sulfonic acid group, X and X' are not the same and when R' has sulfonic acid group, X and X' are H. This is highly stable, preservative and water soluble, and is useful as ink composition for ball-point pen and ink jet recording.Type: GrantFiled: February 6, 1985Date of Patent: June 3, 1986Assignee: Taoka Chemical Company, LimitedInventors: Sinjiro Kawasaki, Hideo Kitagawa, Yutaka Nishii
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Patent number: 4589885Abstract: Liquid, water-containing dyeing formulation of a reactive dyestuff, which contains 10-50% by weight of C.I. Reactive Blue 19, 5-50% by weight of one or more anionic dispersants from the group of the ligninsulfonates or from the group of condensation products of formaldehyde with naphthalenesulfonic acid or with a naphthalenesulfonic acid which is substituted by 1-3 lower alkyl groups, 1-30% by weight of the sodium salt of anthraquinone-2-sulfonic acid, 1-6% by weight of one or more buffer substances which are incapable of any reaction with the reactive dyestuff which diminishes the dyeing strength, and 38-83% by weight of water.Type: GrantFiled: November 21, 1984Date of Patent: May 20, 1986Assignee: Hoechst AktiengesellschaftInventor: Konrad Opitz
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Patent number: 4588411Abstract: The invention relates to long-shelflife print pastes containing at least one water-soluble reactive dye of the formulaD--(X).sub.m (1)in which D is the radical of an organic dye of the monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, nitroaryl, dioxazine, phenazine or stilbene series, X is a fibre-reactive radical of the aliphatic, aromatic or heterocyclic series which is bonded to the radical D either directly or via a bridge member, and m is 1, 2, 3, 4, 5 or 6, and, per fibre-reactive radical X, at least twice the stoichiometric amount of an alkali metal acetate, and to their use for printing cellulosic fibres.Type: GrantFiled: December 6, 1984Date of Patent: May 13, 1986Assignee: Ciba-Geigy CorporationInventors: Peter Scheibli, Alex Kanzig, Andres Schaub
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Patent number: 4585459Abstract: A process is described for separating sodium sulfate from aqueous solutions, containing less than 2% by weight of chloride, of certain fiber-reactive copper-formazan dyestuffs wherein this dyestuff solution is cooled down to a temperature between +5.degree. C. and -15.degree. C. In the course of the cooling the sodium sulfate precipitates in the form of the decahydrate and can be separated off in conventional manner, for example by filtration. The products obtained in this way are liquid low-salt aqueous copper-formazan dyestuff preparations which contain less than 4% by weight of sodium sulfate.Type: GrantFiled: April 4, 1985Date of Patent: April 29, 1986Assignee: Hoechst AktiengesellschaftInventors: Konrad Opitz, Gunther Schwaiger
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Patent number: 4581036Abstract: A process is described for separating sodium sulfate from aqueous solutions of certain fiber-reactive dyestuffs, which contain less than 2% by weight of chloride, by cooling down said solution to a temperature between +5.degree. C. and -15.degree. C. In the course of the cooling, the sodium sulfate precipitates in the form of the decahydrate and can be separated off in conventional manner, for example by filtration. The results obtained in this way are aqueous liquid low-salt preparations of these dyestuffs which contain less than 4% by weight of sodium sulfate.Type: GrantFiled: April 4, 1985Date of Patent: April 8, 1986Assignee: Hoechst AktiengesellschaftInventors: Konrad Opitz, Heinrich Pohlmann, Manfred Sittig, Christian Fabel, Siegfried Wilhelm, Franz Mitter
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Patent number: 4560387Abstract: The invention relates to novel aqueous formulations for dyeing and printing polyester/cellulose blends. In addition to containing at least one water-insoluble or sparingly water-soluble dye and at least one fibre-reactive dye, these formulations contain a non-ionic water-soluble cellulose ether, preferably hydroxyethyl cellulose. The formulations have a very good shelf life, do not recrystallize and do not form tacky deposits.Type: GrantFiled: February 7, 1985Date of Patent: December 24, 1985Assignee: Ciba-Geigy CorporationInventors: Raymond Defago, Sabahattin Guz
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Patent number: 4548612Abstract: A reactive dye composition comprising (1) a dye having the formula, ##STR1## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an unsubstituted or substituted phenylene or naphthylene group, X is a halogen atom, and Y is a group, --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.2 Z, in which Z is a group capable of being split by the action of an alkali, and (2) a buffer, the amount of the buffer being from 3 through 80% by weight based on the weight of the dye, and the pH value of an aqueous solution prepared from the dye composition and water of 20 times as much as the weight of the dye composition being from 3.5 through 7.5, which is superior in storage stability, and useful for dyeing or printing fiber materials to give dyed or printed products having superior fastness with high reproducibility.Type: GrantFiled: May 18, 1984Date of Patent: October 22, 1985Assignee: Sumitomo Chemical Company, LimitedInventors: Yutaka Kayane, Naoki Harada
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Patent number: 4540418Abstract: A reactive dye composition comprising at least one alkylnaphthalenesulfonic acid/formaldehyde condensate and a compound represented by the following formula, ##STR1## wherein D is an organic dye residue having at least one sulfo group, R.sub.1 and R.sub.2 are independently a hydrogen atom or a C.sub.1 to C.sub.4 alkyl group unsubstituted or substituted with a halogen atom or a hydroxy, cyano, alkoxy, carboxy, carbamoyl, alkoxycarbonyl, alkylcarbonyloxy, sulfo or sulfamoyl group, A is a phenylene group unsubstituted or substituted with one or two substituents selected from chlorine and bromine atoms and methyl, ethyl, methoxy, ethoxy and sulfo groups, or a naphthylene group unsubstituted or substituted with one sulfo group, X is a halogen atom, and Y is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub.2 CH.sub.Type: GrantFiled: April 16, 1984Date of Patent: September 10, 1985Assignee: Sumitomo Chemical Company, LimitedInventors: Katsumasa Otake, Takashi Omura, Yutaka Kayane, Kunihiko Imada
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Patent number: 4540595Abstract: An ink that fluoresces in the near infrared is used to mark documents such as bank checks for automatic identification. Markings with this ink are reliably detectable, even in the presence of other markings commonly found on such documents. The preferred fluorescent material of our invention is a phenoxazine dye 3,7-BIS(diethylamino) phenoxazonium nitrate.Type: GrantFiled: October 7, 1982Date of Patent: September 10, 1985Assignee: International Business Machines CorporationInventors: Mario A. Acitelli, Richard F. Tynan, Alan R. Wayson
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Patent number: 4536185Abstract: A novel liquid preparation containing a mixture of dyes according to claim 1, an aliphatic carboxylic acid, and optionally water and organic solvents. This novel preparation is storage-stable and temperature-stable and can be used in particular for dyeing polyacrylonitrile materials in black shades, the dyeings obtained having a neutral shade, negligible change of shade in artificial light and very good fastness to light.Type: GrantFiled: December 23, 1983Date of Patent: August 20, 1985Assignee: Ciba-Geigy CorporationInventors: Arnulf R. Lapple, Alex Nicopoulos
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Patent number: 4523924Abstract: The invention describes a process for the preparation of stable aqueous solutions of water-soluble reactive dyes, starting from an aqueous solution or suspension of the crude reactive dye which is concentrated and at least partially desalted by a membrane separation process. The process of the invention comprises continuously replacing part of the water which is drawn off from the dyestuff solution or suspension during the membrane separation process with demineralized water, whereby the concentration of calcium and magnesium ions in the dyestuff solution does not exceed 0.01% by weight. The concentrated and desalted dyestuff solution is stabilized by addition of a polyphosphate or dihydrogen phosphate/polyphosphate buffer, and a component which improves the water-solubility of the dye is optionally added.The formulations so obtained are readily storable for several months in the temperature range from -10.degree. to +40.degree. C.Type: GrantFiled: December 12, 1983Date of Patent: June 18, 1985Assignee: Ciba-Geigy CorporationInventor: Roger Lacroix
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Patent number: 4515599Abstract: A process for dyeing paper which comprises the use of dyes of the formula ##STR1## wherein R is hydrogen, hydroxyl or amino, X is the azoxy or azo group, and n is 1 or 2, and the bonds of the complexing oxygen atom in the .alpha.-position and of the azo group in the .beta.-position at the naphthalene nuclei are mutually interchangeable. Dyeings of good wetfastness and lightfastness are obtained.Type: GrantFiled: September 9, 1983Date of Patent: May 7, 1985Assignee: Ciba Geigy CorporationInventor: Adolf Kaser
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Patent number: 4514186Abstract: The invention relates to aqueous dyestuff formulations which contain at least one telomer of the formula I ##STR1## or a salt thereof, in addition to at least one anionic dispersant and optionally further ingredients. In formula I the symbols have the following meanings: X is hydrogen or ##STR2## Y is hydrogen, --SO.sub.4 H or ##STR3## each of R.sub.1 and R.sub.2 independently of the other is hydrogen, C.sub.1 -C.sub.4 alkyl which is unsubstituted or substituted by a carboxyl group or is carboxyl; and the sum of n+m is an integer from 2 to 350. These compositions have good storage stability and redispersibility and are particularly suitable for use in the continuous dyeing process.Type: GrantFiled: October 25, 1983Date of Patent: April 30, 1985Assignee: Ciba Geigy CorporationInventors: Alain Lauton, Zdenek Koci
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Patent number: 4502864Abstract: Liquid concentrate of Direct Yellow 11 based on the crown ether complexes of tetrasodium direct yellow 11, are described as well as these novel soluble chelates of insoluble tetrasodium complexes of Direct Yellow 11.Type: GrantFiled: April 25, 1984Date of Patent: March 5, 1985Assignee: Ciba-Geigy CorporationInventor: Jo Ann Cleverdon
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Patent number: 4500321Abstract: A process for the preparation of storage-stable concentrated fluid dye compositions of water-soluble dyes, wherein an aqueous solution or suspension of at least one anionic crude dye is passed over a semi-permeable membrane containing ionic groups and having a pore diameter of 1 to 500 .ANG., to remove salts and synthesis by-products of molecular weights less than 500 and to partially remove water, optionally dried, and mixed with a water-miscible organic solvent and, if desired, further additives, before and/or after passage over the semi-permeable membrane. The fluid dye compositions obtained are particularly suitable for use in spray solutions for dyeing leather, as well as for the dying and printing of textile materials, in particular cellulosic fibres.Type: GrantFiled: February 22, 1983Date of Patent: February 19, 1985Assignee: Ciba-Geigy CorporationInventors: Paul Hugelshofer, Beat Bruttel, Heinz Pfenninger, Roger Lacroix
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Patent number: 4482350Abstract: A reactive dye composition which comprises a combination of 20 to 99% by weight of a dye represented by a free acid of the formula, ##STR1## and 1 to 80% by weight of an alkylnaphthalenesulfonic acid/formaldehyde condensate having a sulfonation degree of 50 to 150% and an average condensation degree of 1.1 to 3.0, which is very readily soluble in water and aqueous alkali liquors, resistant to coagulation when prepared into a color paste for printing, and useful for dyeing or printing cellulose fiber materials yellow with a high color yield, particularly by a one-bath pad dyeing method or printing method.Type: GrantFiled: February 14, 1983Date of Patent: November 13, 1984Assignee: Sumitomo Chemical Company, LimitedInventors: Takemi Tokieda, Sadaharu Abeta
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Patent number: 4480002Abstract: Dyestuff-containing microscopic capsule suspension for record materials, containing in microscopic capsules a lactone family dyestuff represented by the general formula (I): ##STR1## wherein a, b, c and d are each a carbon atom or either one or two atoms of said a, b, c and d are nitrogen atoms and the remaining atoms are carbon atoms, said a, b, c and d may have one or two substituent groups, adjacent a-b, b-c or c-d bond may form another ring, X and Y represent individually a benzene, naphthalene or aromatic heterocyclic ring which may include one or more substituent groups, and X and Y may be the same or different and may be coupled together to form a ring; and a metal ion sequestering agent in the capsules or a liquid medium in which the capsules are suspended.Type: GrantFiled: November 30, 1981Date of Patent: October 30, 1984Assignee: Mitsui Toatsu Chemicals, IncorporatedInventors: Makoto Asano, Kiyoharu Hasegawa, Hiroyuki Akahori, Michihiro Tsujimoto
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Patent number: 4472168Abstract: Lithium salts of fiber reactive dyestuffs are stabilized in aqueous solution with N,N dialkylamine benzene sulfonic acid salt/acid buffers.Type: GrantFiled: July 5, 1983Date of Patent: September 18, 1984Assignee: ICI Americas Inc.Inventor: Donald R. Gauthier
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Patent number: 4468230Abstract: The present disclosure is concerned with aqueous dispersions of anionic acid dyes, especially the monosulphonated level dyeing acid dyes, which have low room temperature, low shear viscosities and good storage stability. This low viscosity enables them to be readily poured, pumped and otherwise handled. These dispersions comprise dyestuff solids with a controlled particle size distribution having a median value between about 1 and 10 microns; an anionic dispersant; and an electrolyte. In a preferred embodiment the pH is adjusted to give an optimum viscosity value. Another preferred feature is the adjustment of the rheology with a thickening agent such as xanthan gum. These dispersions find particular utility in the continuous dyeing of carpet, especially in Kuesters or foam dyeing equipment.Type: GrantFiled: March 25, 1983Date of Patent: August 28, 1984Assignee: Mobay Chemical CorporationInventors: Thomas J. Thomas, Robert G. Hoguet, Charles W. Sandefur, Dietmar Kalz
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Patent number: 4465492Abstract: In a process for the preparation of concentrated aqueous formulations of synthetic anionic dispersants, dilute reaction solutions of said dispersants are subjected to reverse osmosis using membranes which contain ionic groups and have a pore diameter of 1 to 500 .ANG.. The dispersant formulations have a high concentration of active ingredient. They are suitable for the preparation of pigment and dye compositions and impart excellent stability to them, e.g. at elevated temperature and against mechanical influences.Type: GrantFiled: August 17, 1982Date of Patent: August 14, 1984Assignee: Ciba-Geigy CorporationInventor: Roland Putzar
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Patent number: 4452608Abstract: The invention describes a process for the preparation of formulations of metal complex dyes by means of a membrane separation process, which process comprises adding an anionic surfactant to the hot synthesis solution of over 50.degree. C. of the metal complex dye before, during or after the final step of the synthesis, and cooling the solution to a temperature not lower than 20.degree. C. before the membrane separation process.The formulations so obtained are suitable for the preparation of dyebaths, padding liquors or printing pastes which may be used in particular for dyeing and printing textile material made of natural and synthetic polyamide.Type: GrantFiled: February 24, 1983Date of Patent: June 5, 1984Assignee: Ciba-Geigy CorporationInventor: Paul Erzinger
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Patent number: 4449985Abstract: Disclosed are compositions for use in preparing thickened thermosol dyeing baths or printing paste wherein natural or synthetic thickeners are employed, comprising an aqueous system of one or more substantially water insoluble dyes and from about 2 to about 12%, preferably from about 3 to about 10%, and most preferably 4 to about 8% by weight of polyvinyl alcohol (PVA). In general, the dyes useful in the present composition are disperse dyes as defined in the Color Index, 3rd Edition, as azo, anthraquinone, methine, nitroarylamine, and quinoline. Particularly useful are such dyes, for example, comprised of couplers selected from aniline, tetrahydroquinoline, benzomorpholine, and their known derivatives, and diazo components selected from phenyl, thiazolyl, isothiazole, thiadiazolyl, thienyl, benzothiazolyl, and benzisothiazolyl and their known derivatives.Type: GrantFiled: June 28, 1982Date of Patent: May 22, 1984Assignee: Eastman Kodak CompanyInventor: Joseph R. Ditzer, Jr.
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Patent number: 4448583Abstract: An aqueous, liquid fiber-reactive dye composition which is stable to decomposition is disclosed. The composition consists essentially of 5 to 45% by weight of a water-soluble, fiber-reactive dyestuff having from 1 to 3 .beta.-sulfatoethylsulfonyl (--SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H) groups, or a mixture of such dyestuffs; 0 to 10% by weight of water-soluble inert inorganic salt; and 45 to 95% by weight of water. Said liquid dye composition must have a pH of about 2.5 to about 4.5 and must be substantially free of buffer substances. The liquid dye composition may be stored for long periods of time at 0.degree. to 50.degree. C. with substantially reduced decomposition to the vinylsulfonyl dye form.Type: GrantFiled: February 22, 1983Date of Patent: May 15, 1984Assignee: American Hoechst CorporationInventor: Anthony J. Corso
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Patent number: 4443224Abstract: The invention relates to liquid reactive dyestuff preparations containing one or several dyestuffs, the chromophore of which has of from 1 to 8 SO.sub.3 H groups and of from 1 to 3 fiber-reactive groups, a solubilizer, an anionic dispersing agent and buffer substances and having a pH of from 3 to 7. These preparations are particularly stable to storage and are suitable for dyeing and printing natural and synthetic fiber material.Type: GrantFiled: June 30, 1982Date of Patent: April 17, 1984Assignee: Hoechst AktiengesellschaftInventor: Konrad Opitz
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Patent number: 4439205Abstract: An aqueous liquid dye composition containing 5 to 35% by weight of a reactive dye, 0.05 to 30% by weight of a reduction inhibitor and water. This composition is stable to storage for a long period of time or storage at relatively high temperatures.Type: GrantFiled: November 20, 1981Date of Patent: March 27, 1984Assignee: Sumitomo Chemical Company, LimitedInventors: Naoki Harada, Sadaharu Abeta
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Patent number: 4436523Abstract: The invention relates to a process for the preparation of storage stable compositions of sparingly soluble or water-insoluble colorants, which process comprises mixing an aqueous suspension of at least one sparingly soluble or water-insoluble colorant with at least one surface-active substance, subjecting the mixture to ultrafiltration through an asymmetrical membrane which contains ionic groups and has a pore diameter of 1 to 500 .ANG. and a cut-off level in the molecular weight range from 300 to 500, subsequently subjecting the resultant concentrate to wet grinding and, if desired, drying, in particular spray drying the dispersion so obtained. The colorant compositions are particularly suitable for preparing padding liquors, dyebaths and printing pastes for coloring and printing textile materials, especially those made from cellulose and synthetic polyester.Type: GrantFiled: September 20, 1982Date of Patent: March 13, 1984Assignee: Ciba-Geigy CorporationInventors: Paul Hugelshofer, Peter Zbinden, Zdenek Koci
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Patent number: 4436522Abstract: A disperse dye composition containing:20 to 50% by weight of a water-insoluble or sparingly soluble dye; and1 to 5% by weight of a water-soluble surface active agent represented by the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.2 is a hydrogen atom or an .alpha.-methylbenzyl group, R.sup.3 is a hydrogen atom or a methyl group, R.sup.4 is a hydrogen atom, a methyl group or an .alpha.-methylbenzyl group, any one of l and n is 0 and the other is an integer of 7 to 20, and m is an integer of 0 to 5.Type: GrantFiled: December 31, 1981Date of Patent: March 13, 1984Assignee: Mitsubishi Chemical Industries LimitedInventors: Toshio Niwa, Susumu Nagashima
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Patent number: 4435181Abstract: The present disclosure is concerned with storage stable concentrated fluid aqueous dispersions of water soluble cold dyeing fiber reactive dyes. These dispersions contain anionic or polyvinyl dispersants to provide resistance against settling or agglomeration and water soluble electrolytes to provide resistance against hydrolysis of the fiber reactive groups. The dispersions have an average particle size of less than 100 microns and in a preferred embodiment sufficient buffering agent to stabilize the pH at between about 5 and 8.Type: GrantFiled: April 21, 1982Date of Patent: March 6, 1984Assignees: Mobay Chemical Corporation, Bayer AktiengesellschaftInventors: Robert G. Hoguet, Dietmar Kalz, Thomas J. Thomas, Henry T. Whetsell, Joachim Wolff, Konrad Nonn, Karl-Heinz Wolf
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Patent number: 4411668Abstract: The invention relates to dyestuff preparations comprising water, a water-insoluble or sparingly water-soluble dye, a dispersant, a humectant, and optionally further additives, wherein said humectant is a compound of the formula I ##STR1## wherein R is a C.sub.1 -C.sub.16 alkyl group which is unsubstituted or substituted by OH, CN, halogen or --N(C.sub.1 -C.sub.4 alkyl).sub.2, and R' is hydrogen or the --CH.sub.2 --CHOH--CH.sub.2 OH group.These preparations are suitable for use in aqueous or aqueous-organic dye liquors or printing inks or also for obtaining printing pastes. After partial or complete dehydration they are also very readily redispersible.Type: GrantFiled: January 20, 1982Date of Patent: October 25, 1983Assignee: Ciba-Geigy CorporationInventors: Suresh C. Agarwal, Horst Jager, Nitya G. Podder, Hans Mollet
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Patent number: 4405329Abstract: Concentrated fluid formulations of textile dyes, leather dyes or paper dyes, comprising(1) metal-free dyes,(2) non-ionic compounds having a hydrotropic action, at least one of components (3) or (4), component(3) being a reaction product of a fatty acid having 8 to 22 carbon atoms and 1 to 2 mols of diethanolamine, and component(4) being a compound of the formula ##STR1## in which R is an aliphatic hydrocarbon radical having 8 to 22 carbon atoms or a cycloaliphatic, aromatic or aliphatic-aromatic hydrocarbon radical having 10 to 22 carbon atoms, R.sub.1 is hydrogen or methyl, A is --O-- or ##STR2## X is the acid radical of an inorganic, oxygen-containing acid, the acid radical of a polybasic carboxylic acid or a carboxyalkyl radical and m is a number from 1 to 50,(5) water, a water-soluble organic solvent having a boiling point of at least 80.degree. C.Type: GrantFiled: June 1, 1981Date of Patent: September 20, 1983Assignee: Ciba-Geigy CorporationInventors: Heinz Abel, Paul Hugelshofer
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Patent number: 4394130Abstract: Dyes of the formulaCuPc--CH.sub.2 --N.sup..sym. (CH.sub.3).sub.3 Cl.sup..crclbar.).sub.n,whereinCuPc is copper phthalocyanine, andn is 2 or 3,and mixtures thereof, are useful as paper dyes. The dyes may be added to paper stock prior to sheet formation or applied to paper in sheet form to produce turquoise colored paper. The dyed or printed paper is bleachable but has good fastness to light, wet treatments, alcohol and soap. The dyes are very soluble in water and exhaust well on, i.e., exhibit good substantivity to, paper.Type: GrantFiled: January 8, 1976Date of Patent: July 19, 1983Assignee: Sandoz Ltd.Inventor: Helmut Moser
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Patent number: 4390342Abstract: A process for producing solid dye compositions, which process comprises passing an aqueous solution or suspension of at least one water-soluble crude dye, to effect separation of synthesis by-products having a molecular weight of below 500 and partial separation of water, through a semipermeable membrane, subsequently drying the resulting aqueous preparation which has become more highly concentrated, and optionally adding further additives before and/or after passage of the aqueous solution or suspension through the semipermeable membrane, these additives being added beforehand only when they do not become separated by the membrane.There are obtained by this process low-dust to dust-free compositions which are distinguished by high mechanical strength, high bulk density, free-flowing characteristics and good dissolving behavior. Employing these compositions it is possible to prepare low-foam to foam-free aqueous dye liquors having very good solution stability, even in the presence of electrolytes.Type: GrantFiled: March 26, 1981Date of Patent: June 28, 1983Assignee: Ciba-Geigy CorporationInventors: Beat Bruttel, Heinz Pfenninger
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Patent number: 4389214Abstract: Propylene oxide reaction products, and the salts or quaternization products thereof are provided which are obtained from(a) an at least trihydric aliphatic alcohol of 3 to 10 carbon atoms,(b) 1,2-propylene oxide,(c) an aliphatic dicarboxylic acid of 2 to 10 carbon atoms, an aromatic dicarboxylic acid of 8 to 12 carbon atoms or the anhydrides thereof,and at least one of the following components:(d) an aliphatic diol with a molecular weight of at most 2000,(e) a fatty alcohol containing 12 to 22 carbon atoms,(f) a fatty acid containing 12 to 22 carbon atoms, and(g) an aliphatic monoamine or diamine containing 2 to 12 carbon atoms,of which component (g) is used only at the conclusion and only if component (c) is ethylenically unsaturated.The inventive products are suitable for widely varying uses in textile finishing.Type: GrantFiled: December 22, 1980Date of Patent: June 21, 1983Assignee: Ciba-Geigy CorporationInventors: Paul Schafer, Heinz Abel, Fritz Mayer
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Patent number: 4389213Abstract: The invention relates to the use of water-soluble compounds obtained by esterifying alkylene oxide adducts on alcohols having 10 to 24 C atoms with carboxylic acids having up to 22 C atoms and carrying 1 to 6 carboxyl groups as preparation agents for dyestuffs which are insoluble to sparingly soluble in water and preparations which contain a dyestuff having a particle size of less than about 5 .mu.m and one of the preparation agents mentioned.Type: GrantFiled: April 23, 1982Date of Patent: June 21, 1983Assignee: Hoechst AktiengesellschaftInventors: Manfred Schneider, Hubert Kruse, Konrad Opitz
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Patent number: 4385901Abstract: The readily dispersible dye preparations contain water, one or more dyes insoluble or difficultly soluble in water, a nonionic dispersing agent and optionally further additives, and as anionic dispersing agent:(a) a dialkylsulfosuccinate, the alkyl groups of which each contain 3-7 carbon atoms, or(b) a sulfated or sulfonated fatty acid or fatty acid ester of a fatty acid having in each case 10 to 22 carbon atoms, or(c) a fatty amine-oxalkylation product of the formula ##STR1## wherein Q is an aliphatic hydrocarbon radical having 12-22 carbon atoms,M is hydrogen, an alkali metal cation, ammonium cation or amine salt cation, andm and n are integers, the sum of m+n being at least 2 and at most 50.These preparations are suitable for use in aqueous and also organic printing inks.There are also described aqueous printing pastes which contain lignosulfonate, in addition to the anionic dispersing agents listed under (a), (b) and (c).Type: GrantFiled: June 9, 1981Date of Patent: May 31, 1983Assignee: Ciba-Geigy CorporationInventor: Nitya G. Podder