Phenols Patents (Class 8/613)
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Patent number: 7976586Abstract: The invention relates to an aqueous dye solution comprising a) 5 to 30% by weight of an anionic or cationic direct dye, b) 0.1 to 10% by weight of 1-phenoxy-2-propanol, c) 0 to 20% 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%, a process for the preparation of the solution and the use thereof for dyeing paper.Type: GrantFiled: May 8, 2006Date of Patent: July 12, 2011Assignee: BASF SEInventors: Holger Lautenbach, Adolf Käser
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Patent number: 7799096Abstract: The invention relates to an agent for dying fibers comprising keratin, particularly human hair, the agent comprising at least one compound of the formula: together with at least one CH-acidic compound. The invention also relates to methods for shading oxidation dyed fibers, methods for freshening up fibers, methods for making an agent for dyeing fibers and to various compositions.Type: GrantFiled: November 20, 2007Date of Patent: September 21, 2010Assignee: Henkel AG & Co. KGaAInventors: Wibke Gross, Doris Oberkobusch, Ralph Nemitz
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Patent number: 7749284Abstract: Oxidative hair dye compositions containing at least one antioxidant botanical extract operable to inhibit the oxidative degradation of one or more oxidative dyes present in the oxidative dye composition, methods for coloring hair, and methods and products that enable multiple use oxidative dye containers.Type: GrantFiled: April 28, 2008Date of Patent: July 6, 2010Assignee: Aveda CorporationInventors: Jennifer Lockridge, Cindy L. Orr, Darcy Lyn Prater, Vilis Zaeska
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Publication number: 20080307588Abstract: The invention relates to an aqueous dye solution comprising a) 5 to 30% by weight of an anionic or cationic direct dye, b) 0.1 to 10% by weight of 1-phenoxy-2-propanol, c) 0 to 20% 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%, a process for the preparation of the solution and the use thereof for dyeing paper.Type: ApplicationFiled: May 8, 2006Publication date: December 18, 2008Inventors: Holger Lautenbach, Adolf Kaser
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Patent number: 7393367Abstract: An agent for dyeing keratin-containing fibers, especially human hair, is comprised of a cosmetic carrier, and (A) at least one compound of Formula I, wherein each of R1, R2 and R3 is independently a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a C2-C6 alkenyl group, a hydroxyl group, a C1-C6 alkoxy group, a C1-C6 hydroxyalkyl group, a C2-C6 polyhydroxyalkyl group, a hydroxy C1-C6 alkyloxy group, a sulfonyl group, a carboxyl group, a C1-C6 alkoxycarbonyl group, a hydroxy C2-C6 alkyloxycarbonyl group, a sulfonic acid group, a sulfonamido group, a sulfonamide group, a C2-C6 acyl group, a formyl group, a nitro group, a carbamoyl group —C(O)—NR4R5, or a —(CH2)nNR6R7 group wherein each of R4, R5, R6 and R7 is independently a hydrogen atom, a C1-C6 alkyl group or a C2-C6 hydroxyalkyl group; and n is number from 0 to 6, wherein R1 and R2 can form a 5- or 6-membered aromatic or heteroaromatic ring; and (B) at least one CH-acidic compound.Type: GrantFiled: November 8, 2007Date of Patent: July 1, 2008Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Wibke Gross, Horst Hoffkes, Doris Oberkobusch, Helmut Muller, Carsten Brake
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Patent number: 6669740Abstract: Dye preparations comprising, based in each case on the weight of the preparation, from 0.1 to 30% by weight of one or more dyes from the class of the mono- or polyazo dyes containing no acidic groups, from 0.1 to 20% by weight of a dispersant based on an arylsulfonic acid-formaldehyde condensate or from 0.1 to 20% by weight of a water-soluble dispersant based on alkoxylated phenols with or without water, and their use as inks in the inkjet process and for textile sublimation transfer printing.Type: GrantFiled: November 6, 2002Date of Patent: December 30, 2003Assignee: BASF AktiengesellschaftInventors: Karl Siemensmeyer, Bernd Siegel, Volker Bach, Manfred Herrmann, Günther König, Rüdiger Sens
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Patent number: 6607565Abstract: Dye preparations comprising, based on the weight of the preparation, from 0.1 to 30% by weight of one or more dyes selected from the class of the anthraquinones or quinophthalones which are free of ionic groups, from 0.1 to 20% by weight of a dispersant based on an arylsulfonic acid-formaldehyde condensation product, from 10 to 90% by weight of a mono- or polyhydric alcohol and optionally water, are useful as inks in the inkjet process and also for sublimation transfer printing.Type: GrantFiled: May 25, 2000Date of Patent: August 19, 2003Assignee: BASF AktiengesellschaftInventors: Manfred Herrmann, Bernd Siegel, Karl Siemensmeyer
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Patent number: 6537331Abstract: Dye preparations comprising, based in each case on the weight of the preparation, from 0.1 to 30% by weight of one or more dyes from the class of the mono- or polyazo dyes containing no acidic groups, from 0.1 to 20% by weight of a dispersant based on an arylsulfonic acid-formaldehyde condensate or from 0.1 to 20% by weight of a water-soluble dispersant based on alkoxylated phenols with or without water, and their use as inks in the inkjet process and for textile sublimation transfer printing.Type: GrantFiled: June 5, 2000Date of Patent: March 25, 2003Assignee: BASF AktiengesellschaftInventors: Karl Siemensmeyer, Bernd Siegel, Volker Bach, Manfred Herrmann, Günther König, Rüdiger Sens
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Patent number: 6436153Abstract: The invention relates to a direct dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing and which is free of oxidases or oxidoreductases, at least one cationic direct dye of given formula and at least one specific polyol and/or polyol ether. Subjects of the invention are also the dyeing processes and devices/kits using the said composition.Type: GrantFiled: May 28, 1999Date of Patent: August 20, 2002Assignee: L'Oréal S.A.Inventor: Christine Rondeau
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Patent number: 6371994Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least glycerol and/or one specific polyol and/or polyol ether. The invention also relates to the dyeing processes and devices using this composition.Type: GrantFiled: May 28, 1999Date of Patent: April 16, 2002Assignee: L'Oreal S.A.Inventors: Gérard Lang, Jean Cotteret
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Patent number: 6368361Abstract: Tea polyphenol obtained by the extraction from tea has an antibacterial effect. In methods for producing an antibacterial fiber by fixing the tea polyphenol to fiber, the object of the present invention is to provide a process for manufacturing an antibacterial fiber capable of exerting an excellent antibacterial performance without the use of metal chelates potentially causing metal allergy and environmental problems. In order to achieve the above object, the present invention manufactures an antibacterial fiber by a process comprising the steps of contacting fiber with or immersing fiber in an aqueous solution in which a cationic surfactant with a quaternary ammonium salt group, a water-soluble protein, and an alkaline compound are dissolved; and separating said fiber from the aqueous solution, to immerse the fiber in another aqueous solution containing tea polyphenol.Type: GrantFiled: March 22, 2000Date of Patent: April 9, 2002Assignee: Ito En, Ltd.Inventors: Fumihisa Yayabe, Yasuhiko Ikegawa, Shuichi Takahashi, Yukiko Nonaka, Saburo Sugimoto, Kazuhiko Hayashi, Yuji Higashibata
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Patent number: 6248314Abstract: The invention relates to a hair dye composition comprising (A) an acid dye and (B) an alkylene carbonate having 3-5 carbon atoms in total, said composition exhibiting a pH of 2-6, and having a buffer capacity of 0.007-0.5 gram equivalent/L, and to a method of dyeing hair using the hair dye composition. The hair dye composition is excellent in hair-dyeing ability without coloring the scalp and skin and has good fastness to shampoo and the like.Type: GrantFiled: July 2, 1999Date of Patent: June 19, 2001Assignee: Kao CorporationInventors: Atsushi Nakashimada, Nozomi Nagashima, Masahiko Sakai, Hajime Miyabe, Yutaka Shibata
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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
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Patent number: 6099591Abstract: A hair coloring composition, and a method for using the composition in which a natural plant-derived chemical of the formula ##STR1## is employed as a coupler-modifier in a composition containing a primary intermediate and a customary coupler. The novel coupler-modifiers produce a composition which is more physiologically suitable for use in hair colorings than the prior art compositions and allows for the preparation of compositions which produce highly stable colorings over a broad range shades and tones.Type: GrantFiled: January 29, 1998Date of Patent: August 8, 2000Assignee: Aveda CorporationInventors: Peter Matravers, Ulrich Milius, Tracy L. Cornuelle
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Patent number: 6096099Abstract: Disclosed herein is a hair dye composition comprising (A) benzyloxyethanol and/or benzyl alcohol, (B) propylene carbonate and (C) an acid dye and having a pH of 2.0 to 6.0. The composition has excellent hair-dyeing ability and good fastness to shampoo.Type: GrantFiled: May 21, 1999Date of Patent: August 1, 2000Assignee: Kao CorporationInventors: Naohiro Kariya, Atsushi Nakashimada, Nozomi Hagashima, Yutaka Shibata, Masahiko Sakai, Hajime Miyabe
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Patent number: 6083285Abstract: A stabilized, concentrated solution of a diazo dye is prepared by coupling diazotized aniline or substituted aniline with a dialkylaniline in the presence of an aromatic solvent. After removal of the aqueous phase, the solution is stabilized by the addition of a branched chain, primary or secondary, C.sub.3 -C.sub.6 alkyl phenol.Type: GrantFiled: September 24, 1998Date of Patent: July 4, 2000Assignee: Morton International, Inc.Inventors: Mike Friswell, Justin Frederico, Haresh Doshi
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Patent number: 5948122Abstract: The present invention relates to methods for dyeing a material, comprising (a) treating the material with a dyeing system which comprises one or more reduced vat dyes and/or one or more reduced sulfur dyes; and (b) oxidizing the one or more reduced vat dyes or one or more reduced sulfur dyes adsorbed onto the treated material with an oxidation system comprising (i) an oxygen source and one or more enzymes exhibiting oxidase activity or (ii) a hydrogen peroxide source and one or more enzymes exhibiting peroxidase activity, to convert the one or more reduced dyes to their original oxidized insoluble colored forms; wherein the material is a fabric, yarn, fiber, garment or film made of cotton, diacetate, flax, fur, hide, leather, linen, lyocel, polyacrylic, polyamide, polyester, ramie, rayon, silk, tencel, triacetate, viscose or wool.Type: GrantFiled: November 24, 1998Date of Patent: September 7, 1999Assignees: Novo Nordisk Biotech, Inc., Novo Nordisk BioChem North America Inc., Novo Nordisk A/SInventors: Feng Xu, Sonja Irene Salmon
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Patent number: 5944856Abstract: 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.degree. 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: August 31, 1999Assignee: Clariant Finanace (BVI) LimitedInventor: Jurgen Geiwiz
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Patent number: 5876466Abstract: Suede-like artificial leather is described that is treated with at least one dye selected from the group consisting of sulfur dyes, vat dyes and sulfur vat dyes, and 2,2',4,4'-tetrahydroxy benzophenone. The suede-like artificial leather has excellent color resistance to light and color fastness to both washing and dry-cleaning.Type: GrantFiled: September 29, 1997Date of Patent: March 2, 1999Assignee: Kuraray Co., Ltd.Inventors: Hitoshi Nakashima, Hisao Yoneda
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Patent number: 5803931Abstract: An aqueous dye composition containing a solvent-free dye carrier selected from the group consisting of mono-styrenated phenols, di-styrenated phenols, tri-styrenated phenols, para-cumenyl phenols, and mixtures thereof.Type: GrantFiled: October 1, 1997Date of Patent: September 8, 1998Assignee: Henkel CorporationInventors: Susan C. Glenn, Howard Cole, Brian C. Francois
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Patent number: 5634949Abstract: Cellulosic textiles are printed or dyed with multiple hook reactive dyes without fabric hand harshening on using a reactive dye preparation containing 0.5 to 10% by weight of a surfactant and 0 to 10% by weight of an antifoaming agent.Type: GrantFiled: June 5, 1995Date of Patent: June 3, 1997Assignee: Hoechst AGInventors: Kurt Hohmann, Peter Mischke, Gerd Pelster, Horst-Roland Mach
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Patent number: 5540739Abstract: A process for dyeing textile materials of naturally occurring and synthetic polyamide fibres, in which dyeing is carried out at the boiling point of the dyebath during a short dyeing time which is therefore gentle on the fibres, and level dyeings having good fastness properties are obtained (high temperature rapid dyeing process).The dyeing process is carried out with dyebaths with comprise specific surfactants. A high degree of exhaustion of the dye liquors is achieved, and dyeing from static baths is thus rendered possible.Type: GrantFiled: July 13, 1994Date of Patent: July 30, 1996Assignee: Ciba-Geigy CorporationInventors: Klaus Hannemann, Franz Gruner, Martin Jollenbeck, Jorg Binz
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Patent number: 5199954Abstract: An easily employed, effective and predictable hair dye composition is obtained by combining aryl amines with aryl aldehydes along with an inorganic metal salt having a valence between +1 and +3. By employing this formulation, a permanent, long-lasting, non-fading hair coloring is achieved. In the preferred embodiment, the inorganic metal salt is selected from the group consisting of aluminum chloride, ferric chloride, lithium bromide, manganese chloride, copper chloride, and manganese nitrate. In carrying out the teaching of the present invention, the aryl amine and aryl aldehyde may be applied to the hair separately or in combination, along with the inorganic metal salt. In addition, this inorganic metal salt can be applied after the application and removal of the aryl amine and aryl aldehyde.Type: GrantFiled: February 25, 1992Date of Patent: April 6, 1993Assignee: Shiseido Co., Ltd.Inventors: Thomas M. Schultz, Catherine Grillo, Sanae Kubo
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Patent number: 5190710Abstract: Excellent color stabilization as well as integrity is obtained in thin film and fibers exposed to bright sunlight at relatively high temperature, in polyolefin (PO) articles pigmented with blue and green phthalocyanine, and red azo and disazo pigments. The pigment is combined with two `large molecule` primary stabilizers, the first a piperidyl-based (PDYL) hindered amine light stabilizer (HALS), and the second, a 3,5-disubstituted-tert-butyl-4-hydroxybenzoate (3,5-DHBZ). The first contains at least two polysubstituted piperidyl rings in its molecule; the second is a hindered phenol with an ester group in the para- position. Stabilization of the PO's color is obtained for as long as the PO articles themselves are stabilized by the combination of primary stabilizers, typically, their useful life. With the combination, the pigmented articles are not only thermooxidatively and light-stabilized, but there is exceptionally low color fade.Type: GrantFiled: February 22, 1991Date of Patent: March 2, 1993Assignee: The B. F. Goodrich CompanyInventor: George Kletecka
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Patent number: 5181935Abstract: Processes for improving the thermal and/or photochemical stability of undyed and dyed polyamide fibers by treatment with an agent from an aqueous bath containing (A) a compound of the formula (I) defined in claim 1 and (B) a UV absorber.Type: GrantFiled: May 24, 1991Date of Patent: January 26, 1993Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Francesco Fuso
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Patent number: 4886549Abstract: Specific vatting accelerators according to claims 1 and 2 are described. These can be added to a vat dye or sulfur dye composition, or to a dye bath or printing paste containing a vat dye or sulfue dye, by virtue of which an improvement of dye yield, particularly on cellulose materials, is obtained.Type: GrantFiled: March 8, 1988Date of Patent: December 12, 1989Assignee: Ciba-Geiegy CorporationInventor: Zdenek Koci
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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: 4661117Abstract: A waterless dip dye composition for non-textile and general-utility articles comprises an aromatic ester of the formula ArCOOR.sub.2, ArCOO--R.sub.1 --OOCAr or (ArCOO).sub.z --R.sub.3, wherein 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.2 is substituted or unsubstituted alkyl or alkenyl of 8-30 carbon atoms; R.sub.3 is the residue of a polyhydric alcohol having z hydroxyl groups; Ar is substituted or unsubstituted mono- or bicyclic aryl of up to 15 carbon atoms and z is 3-6, admixed with at least 0.5% by weight of a dyeing assistant agent and an organic colorant.A process for coloring non-textile and general-utility articles, fabricated from polyester, polyamide, polyurethane, acrylic, halogenated polyolefin or epoxy plastic, comprises exposing an article to the foregoing compositions, maintained at a temperature from about 100.degree. C.Type: GrantFiled: November 8, 1984Date of Patent: April 28, 1987Assignee: Crucible Chemical CompanyInventors: Robert B. Wilson, William F. Pomeroy, Louis T. Sovey, Jr.
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Patent number: 4661116Abstract: Textile fabrics formed at least partially of cationic dyeable polyester fibers are dyed in a continuous process with an aqueous dyebath comprising(a) 0 to 5 g/l of thickener;(b) cationic dyestuffs in an amount sufficient to dye the cationic dyeable polyester fibers to the desired depth of color;(c) 2 to 100 g/l of a partially sulfated adduct of ethylene oxide with an alkyl phenol or C.sub.8 to C.sub.16 fatty alcohols;(d) 2 to 60 g/l of nonionic or anionic surfactants; and(e) 5 to 50 g/l of at least one organic compound selected from the group consisting of aromatic nitrile ethers and ethoxylated chlorophenols.The fabrics are continuously dyed by padding, immersing, spraying or otherwise applying the dyestuffs, steaming the fabrics in their wet condition, and subsequently washing and drying.Type: GrantFiled: January 31, 1985Date of Patent: April 28, 1987Assignee: Collins & Aikman CorporationInventors: Frederick E. Barwick, III, Kyle R. Pearce
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Patent number: 4657558Abstract: Textile fabrics formed at least partially of polyester fibers are dyed with an aqueous dyebath comprising(a) 0 to 5 g/l of thickener;(b) disperse dyestuffs in an amount sufficient to dye the fibers to the desired depth of color;(c) 2 to 100 g/l of a partially sulfated adduct of ethylene oxide with an alkyl phenyl or C.sub.8 to C.sub.16 fatty alcohols;(d) 0 to 60 g/l of nonionic or anionic surfactants; and(e) 5 to 50 g/l of at least one organic compound selected from the group consisting of aromatic nitrile ethers and ethoxylated chlorophenols.The fabrics may be continuously dyed by padding, immersing, spraying or otherwise applying the dyestuffs, steaming the fabrics in their wet condition, and subsequently washing and drying.Type: GrantFiled: September 20, 1984Date of Patent: April 14, 1987Assignee: Collins & Aikman CorporationInventor: Dieter Huxoll
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Patent number: 4595582Abstract: The invention relates to a new dyestuff composition for histological examinations, which comprises(1) a product formed by the interaction of one molar proportion of one or more thionine dyestuffsselected from thionine (Colour Index 52,000), toluidine blue (Colour Index 52,040) and dimethyl thionine (Azur A) with at least 0.2 molar proportion of resorcine at elevated temperature,(2) 0.5 to 2 moles of a dyestuff "A", calculated for one mole of the thionine dyestuff interacted with resorcine, and(3) 0.5 to 2 moles of a dyestuff "B", calculated for one mole of the thionine dyestuff interacted with resorcine, whereindyestuff "A" and dyestuff "B" are alkaline dyestuffs different in colour and pH, and both dyestuff "A" and dyestuff "B" can be mixtures of alkaline dyestuffs similar in colour and pH.Type: GrantFiled: July 20, 1983Date of Patent: June 17, 1986Assignee: Reanal FinomvegyszergyarInventors: Gyorgy Balogh, Gyorgy Csaba
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Patent number: 4519805Abstract: Specific vatting accelerators according to claims 1 and 2 are described. These can be added to a vat dye or sulfur dye composition, or to a dye bath or printing paste containing a vat dye or sulfur dye, by virtue of which an improvement of dye yield, particularly on cellulose materials, is obtained.Type: GrantFiled: December 29, 1981Date of Patent: May 28, 1985Assignee: Ciba Geigy CorporationInventor: Zdenek Koci
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Patent number: 4492586Abstract: Dispersants, especially well suited for use with insoluble dyes, are produced by reacting hydroxyl benzyl alcohol compounds with sulfonated lignin derivatives. The dispersants have high levels of heat stability, coupled with desirable dye reduction, staining, foaming, milling and viscosity-reducing properties. Dyestuffs, dye pastes and dye baths, as well as methods utilizing them, are provided.Type: GrantFiled: June 25, 1981Date of Patent: January 8, 1985Assignee: Reed Lignin, Inc.Inventor: Stephen Y. Lin
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Patent number: 4490150Abstract: A process for shifting the equilibrium of disperse dyestuffs between an aqueous liquor and a textile substrate comprising adding to the aqueous liquor a compound of formula I ##STR1## wherein R.sub.1 and R.sub.2, independently, are hydrogen or C.sub.4-12 -alkyl, provided that R.sub.1 and R.sub.2 are not both hydrogen;R is a mixed chain containing from 7 to 31 ethyleneoxy and 3 to 27 propyleneoxy units,with the proviso that R contains at most a total of 34 units.Type: GrantFiled: February 3, 1983Date of Patent: December 25, 1984Assignee: Sandoz Ltd.Inventor: Juerg Heller
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Patent number: 4420310Abstract: Watersoluble oxalkylated novolaks of the formula ##STR1## wherein R.sup.1 is alkyl of 1 to 18 carbon atoms, R.sup.2 is hydrogen or R.sup.1, X is ethylene or propylene, m is 6 to 100 and n is 1 to 12, are preparation agents for disperse dyestuffs. Disperse dystuff preparations containing these compounds have a stable and uniform distribution of the dyestuff particles, even with high dyestuff concentrations, and show good dyeing properties, low or no foam in dyebaths and useful viscosities in printing pastes.Type: GrantFiled: January 14, 1980Date of Patent: December 13, 1983Assignee: Hoechst AktiengesellschaftInventors: Konrad Opitz, Max Grossmann, Hurbert Kruse, Manfred Schneider, Heinz Uhrig
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Patent number: 4373930Abstract: An aqueous dispersion of a solid, especially a disperse dyestuff or a pigment, containing, as dispersing agent, a water-soluble, non-ionic polycyclic aromatic compound having a poly(lower alkylene-oxy)chain containing from 5 to 30 lower alkylene-oxy groups. Preferred dispersing agents contain about 10 ethylene-oxy groups in the chain. The dispersions of disperse dyestuffs are especially suitable for use in aqueous print pastes based on synthetic thickening agents and the pigment dispersions are suitable for use in emulsion paints.Type: GrantFiled: September 15, 1981Date of Patent: February 15, 1983Assignee: Imperial Chemical Industries LimitedInventor: Geoffrey R. Rothwell
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Patent number: 4370144Abstract: A process of dyeing textile fibres in which the fibre is contacted with a two-phase suspension comprising an active solvent containing dissolved dye and the necessary amount of a bulking inert substantially immiscible solvent, the active solvent under the conditions of dyeing being liquid, is a solvent for the dye, is insoluble or only slightly soluble in the inert solvent, and in which the fixation affinity of the fibre for the dye is greater than that of the active solvent for the dye at the temperature required for the fixation, wherein the dye used is in the form of an aqueous, stable, highly concentrated, finely dispersed, flowable preparation insoluble to difficultly soluble in water containing at least 25% of finely dispersed dyestuff, at most 10% of an anion-active dispersing agent, at most 5% of a non-ionic dispersing agent and from 0 to 35% of a hydrotropic agent.Type: GrantFiled: February 4, 1980Date of Patent: January 25, 1983Assignee: Ciba-Geigy CorporationInventors: James K. Skelly, David G. Evans, Carl Becker
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Patent number: 4359321Abstract: Dispersants, especially well suited for use with insoluble dyes, are produced by reacting hydroxyl benzyl alcohol compounds with sulfonated lignin derivatives. The dispersants have high levels of heat stability, coupled with desirable dye reduction, staining, foaming, milling and viscosity-reducing properties. Dyestuffs, dye pastes and dye baths, as well as methods utilizing them, are provided.Type: GrantFiled: September 3, 1981Date of Patent: November 16, 1982Assignee: American Can CompanyInventor: Stephen Y. Lin
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Patent number: 4321053Abstract: A process for preparing a composition, a composition and a process for oxidative dyeing of hair are disclosed. The composition comprises at least one n,5-dihydroxy-1,2,3,4-tetrahydro-naphthalene having the general formula ##STR1## wherein n represents a number from 1,2,3, or 4, and which n,5-dihydroxy-1,2,3,4-tetrahydronaphthalene can be present as such or as a salt of an organic or inorganic base and which n,5-dihydroxy-1,2,3,4-tetrahydro-naphthalene serves as a coupling compound; and at least one developer employed in hair dyeing. Intense and red tinge free blue colorations can be obtained.Type: GrantFiled: January 25, 1980Date of Patent: March 23, 1982Assignee: Wella AktiengesellschaftInventors: Eugen Konrad, Herbert Mager
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Patent number: 4311480Abstract: A liquid composition suitable for the domestic dyeing of polyester fabrics which comprises a liquid disperse dye, a diffusion accelerant, an anionic or non-ionic emulsifying agent and a compatible textile lubricant.Type: GrantFiled: May 2, 1980Date of Patent: January 19, 1982Assignee: Ciba-Geigy CorporationInventors: Ian M. Price, James K. Skelly
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Patent number: 4270917Abstract: Aqueous dispersions of dyestuffs which are susceptible to crystal growth of the dyestuff particles in the dispersion, stabilized against such crystal growth by addition to the dispersion of a phosphated alkylphenol ethoxylate.Type: GrantFiled: October 2, 1979Date of Patent: June 2, 1981Assignee: Imperial Chemical Industries LimitedInventors: Terence E. Heald, Roy Porter