Plural Azo Groups Attached Indirectly To Each Other By Nonionic Bonding Patents (Class 534/614)
  • Patent number: 7232895
    Abstract: The present invention relates to a disazo red reactive dyestuff containing quaternary ammonium group of the following formula (1): wherein R?, R?, m, n, Y1 and Y2 are defined the same as in the specification. The disazo red reactive dyestuff of the present invention has a good dye uptake while dyeing cellulose fibers, which satisfies the economical demand of high build up in the market.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: June 19, 2007
    Assignee: Everlight USA, Inc.
    Inventors: Wen-Jang Chen, Chien-Yu Chen, Chen-Lung Kao
  • Patent number: 7098319
    Abstract: The present invention provides disazo reactive dyestuffs containing the quaternary group compounds of the general formula (1) wherein R, (W)0˜3, (W?)0˜3, Y1 and Y2 are defined the same as the specification. The dyes of the invention are distinguished by high fixation and a very good build-up. They are distinguished also by high washing off and a low nylon stain, and they have fiber-reactive properties and are very highly suitable for dyeing and printing of materials containing either cellulose fibers, such as cotton, synthetic cotton, hemp, and synthetic hemp, or amide containing fibers such as wool and nylon.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: August 29, 2006
    Assignee: Everlight USA, Inc.
    Inventors: Wen-Jang Chen, Chien-Yu Chen, Hsiao-San Chen
  • Patent number: 7029503
    Abstract: The present invention provides a disazo compound which in a free acid form is represented by the formula (1) and which has high ability to dye cellulosic fibers and attains efficient dyeing with satisfactory reproducibility; and a method of dyeing cellulosic fibers with the compound. Also provided are: a reactive dye composition comprising a compound represented by the formula (1) and a specific red reactive dye and/or a specific blue reactive dye; and a method of dyeing cellulosic fibers with the composition. In the formula, R1 and R3 each represents hydrogen atom or methoxy group; R2 and R4 each represents hydrogen atom, methyl group, acetylamino group, ureido group, etc.; and m is 2 or 3.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: April 18, 2006
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Junji Odani, Eiichi Ogawa, Yasuo Shirasaki
  • Patent number: 6933371
    Abstract: 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: Grant
    Filed: September 13, 2001
    Date of Patent: August 23, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunter-Rudolf Schröder, Sophia Ebert, Karl-Heinz Etzbach, Rainer Tresch, Rüdiger Sens
  • Patent number: 6831163
    Abstract: Disclosed is a molecule containing a first chromophore that exhibits a first absorption maximum above 700 nm and a second chromophore that exhibits a second absorption maximum different from the first absorption maximum, wherein the absorption of the first and second chromophores are substantially independent of each other. The molecule exhibits improved stability.
    Type: Grant
    Filed: December 26, 2002
    Date of Patent: December 14, 2004
    Assignee: Eastman Kodak Company
    Inventors: Ruizheng Wang, Ann L. Carroll-Lee, Kevin W. Williams, Linda A. Kaszczuk, Charles H. Weidner
  • Patent number: 6743901
    Abstract: A process for preparing liquid formulations of dyes of the general formula I where the variables are as defined in the specification by diazotizing an amine of the formula II and then coupling the diazonium salt onto a compound of the formula III and also optionally adding solubilizing additives, which comprises effecting said diazotizing at a pH set to an acidic value using pure methanesulfonic acid or at least 20 mol % mixtures of methanesulfonic acid in monobasic acids.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: June 1, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Schmitt, Roland Merger, Rainer Tresch
  • Patent number: 6130319
    Abstract: A flocculating dye reduces bleed between two inks when they are applied side by side. A first ink comprises the flocculating dye which flocculates the dispersant-pigment of the second ink.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: October 10, 2000
    Assignee: Lexmark International, Inc.
    Inventors: James F. Feeman, Jing X. Sun
  • Patent number: 6048968
    Abstract: Cationic azo dyes of the formula I ##STR1## where the variables are as defined in the specification, amines as their intermediates, processes for preparing them, their use for dyeing and printing natural or synthtic substrates, and their mixtures are described.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: April 11, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Etzbach, Torsten Freund, Rainer Tresch
  • Patent number: 6048969
    Abstract: Cationic sulfonic acid dyes of the formula I ##STR1## where the variables are as defined in the specification, are useful for the dyeing or printing of polymeric material.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: April 11, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunter-Rudolf Schroder, Udo Mayer, Rainer Tresch
  • Patent number: 5998590
    Abstract: A flocculating dye reduces bleed between two inks when they are applied side by side. A first ink comprises the flocculating dye which flocculates the dispersant-pigment of the second ink.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: December 7, 1999
    Assignee: Lexmark International, Inc.
    Inventors: James F. Feeman, Jing X. Sun
  • Patent number: 5932708
    Abstract: Fiber-reactive monoazo and disazo dyes, suitable for dyeing cellulose material, such as cotton, and also synthetic or natural polyamide material, such as wool, in high color depth and with good fastness properties, are described which contain a quaternary ammonium group, such as a trialkylammonium group, and contain, as a fiber-reactive group, a group of the vinyl-sulfone series, or a grouping containing a group of the vinyl-sulfone series, or a heterocyclic fiber-reactive group selected from a halogeno-substituted pyrimidine or triazine.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: August 3, 1999
    Assignee: Dystar, L.P.
    Inventors: Thomas S. Phillips, Ralph Svenningsen, Ronald P. Pedemonte
  • Patent number: 5750661
    Abstract: Dyes of the formula ##STR1## where the ring A may be benzofused and R.sup.1 -R.sup.6 have the meaning defined in the specification, with the proviso that at least one quaternizable or quaternary group is present in the molecule; use of said dyes for dyeing or printing polymeric material, and novel amides of J-acid.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: May 12, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrike Schloesser, Udo Mayer
  • Patent number: 5597387
    Abstract: The present invention relates to water-soluble polyazo dyestuffs of the general formula I ##STR1## wherein Y, Z, m and M.sup..sym.1 to M.sup..sym.4 are as defined in claim 1, processes for dyeing leather and paper with the polyazo dyestuffs, and recording liquids and inks containing the polyazo dyestuffs.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: January 28, 1997
    Assignee: Hoechst AG
    Inventors: Wolfgang Bauer, Dieter Baumgart, Walter Zoller
  • Patent number: 5571898
    Abstract: There are described dyes of the formula ##STR1## where the ring A may be benzofused, R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted phenyl, C.sub.1 -C.sub.8 -alkanoyl, substituted or unsubstituted benzoyl, substituted C.sub.2 -C.sub.4 -alkanoyl, or substituted diaminotriazinyl,R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl or R.sup.1 and R.sup.2 together with the nitrogen atom joining them together are a heterocyclic radical,R.sup.3 and R.sup.4 are each substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl or substituted or unsubstituted piperidinyl and R.sup.3 may also be hydrogen,R.sup.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.2 -C.sub.5 -alkanoylamino, halogen, nitro, cyano, substituted or unsubstituted phenylazo, C.sub.2 -C.sub.4 -alkanoylamino substituted by a quaternizable or quaternary group, or C.sub.2 -C.sub.4 -alkoxy, C.sub.2 -C.sub.4 -alkoxycarbonyl or C.sub.2 -C.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: November 5, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrike Schloesser, Udo Mayer
  • Patent number: 5175260
    Abstract: Disazo dyes suitable for preparing inks have the formula ##STR1## where m is 1 or 2,n is 0 or 1,Z.sup.1 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl,Z.sup.2 is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkanoyl, substituted or unsubstituted benzoyl, C.sub.1 -C.sub.4 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or a derivatized 1,3,5-triazinyl radical, andD is the radical of a diazo component of the class of the thiazole, thiophene, aminobenzoic acid or phenylenediamine compounds.
    Type: Grant
    Filed: August 8, 1991
    Date of Patent: December 29, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gunter-Rudolf Schroeder, Udo Mayer
  • Patent number: 5101020
    Abstract: Novel radio labeled dyes are provided for detecting proteins on gels.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: March 31, 1992
    Assignee: Linus Pauling Institute of Science and Medicine
    Inventor: James E. Fleming
  • Patent number: 5019165
    Abstract: A recording fluid for the ink jet process contains a water-miscible organic solvent and a dye of the formula ##STR1## where R.sup.1 and R.sup.2 are each independently of the other hydrogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy,A.sup..crclbar. is an anion andX is a bridge member of the formula ##STR2## where R.sup.3 is chlorine, hydroxy, C.sub.1 -C.sub.6 -alkoxy, amino, C.sub.1 -C.sub.4 -monoalkyl- or dialkyl-amino, anilino, N-(C.sub.1 -C.sub.4 -alkyl)anilino, pyrrolidino, piperidino, morpholino, piperazino or N-(C.sub.1 -C.sub.4 -alkyl)piperazino.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: May 28, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Bruder, Udo Mayer
  • Patent number: 4988805
    Abstract: The dyestuffs of the general formulae ##STR1## and salts thereof whereinX denotes hydrogen, alkoxy or NHR.sub.3,R denotes hydrogen, alkyl or alkoxy,R.sub.1 denotes alkyl,R.sub.2 and R.sub.3 denote hydrogen, alkyl, alkylcarbonyl, alkylsulphonyl, aryl, arylcar=bonyl, arylsulphonyl, aralkyl, aralkylcarbonyl or aminocarbonyl andm and n denote 1 or 2, andwherein the substituents mentioned can, in turn, be substituted by nonionic radicals or carboxylic or sulphonic acid groups customary in dyestuffs chemistry, are used for dyeing cellulose-containing materials and leather.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: January 29, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventor: Klaus Kunde
  • Patent number: 4940783
    Abstract: Disazo dyes which are suitable for dyeing and printing, especially of paper of all kinds. The dyes correspond to the formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each an alkyl radical,A is an alkylene radical,X and Y are nonionic substituents customarily in azo dyes andAn.sup..crclbar. is an anion.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: July 10, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Willy Stingelin
  • Patent number: 4921945
    Abstract: Disazo dyes which are useful for dyeing and printing, of the formula ##STR1## in which: D is the radical of a substituted or unsubstituted, homocyclic or heterocyclic diazo component, V.sup.1 and V.sup.2 independently of one another are hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, halogen or cyano, X is hydrogen, substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, halogen, cyano or a group of the formula --NH--CHO, --NH--CO--NH.sub.2, --NH--CO--NH--Q or --NH--CO--(0).sub.m --Q in which m is zero or 1 and Q is substituted or unsubstituted C.sub.1 -C.sub.4 alkyl or phenyl, Z is C.sub.1 -C.sub.4 alkyl--CO--, --CN, --COO--C.sub.1 -C.sub.4 alkyl, --CONH.sub.2 or --CO--C.sub.6 H.sub.5, R.sup.1, R.sup.2 and R.sup.3 independently of one another are in each case a substituted or unsubstituted alkyl radical or R.sup.1 and R.sup.2, together with the nitrogen atom linking them, or R.sup.1, R.sup.2 and R.sup.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: May 1, 1990
    Assignee: Ciba-Geigy Corporation
    Inventor: Willy Stingelin
  • Patent number: 4885360
    Abstract: Reactive dyes of the formula ##STR1## in which D is the radical of a dye of the monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide series, R.sub.1 and R.sub.2, independently of each other, are each hydrogen or the radical of an unsubstituted or substituted hydrocarbon, A is an unsubstituted or substituted aliphatic or aromatic bridge member, n is 0 or 1, Y is a --CH.dbd.CH.sub.2 or --CH.sub.2 CH.sub.2 --X radical, X is an inorganic or organic radical detachable under alkaline conditions, Z is a radical of the formula ##STR2## and Hal is chlorine or bromine, and if n is 1 Z must not be either of the two radicals mentioned at the end for Z, are suitable for dyeing or printing cellulose fibre materials and produce lightfast and wetfast dyeings or prints.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: December 5, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Scheibli
  • Patent number: 4839468
    Abstract: Triazine compounds which in their betaine form correspond to the formula ##STR1## wherein Y denotes hydrogen or the radical of an azo dye-stuff,R denotes hydrogen or alkyl,Ar denotes arylene,Z denotes halogen, hydroxyl, alkoxy, alkyl, aryl or an amino group which may be monosubstituted or disubstituted,m denotes 0 or 1 andX.sup.(+) denotes an ammonium groupamd whereimthe cyclic and acyclic radicals can carry further substituents,are used for dyeing/coloring natural and synthetic substrates and compositions, in particular paper.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 13, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Nickel, Peter Wild, Frank-Michael Stohr
  • Patent number: 4764175
    Abstract: Metal-free compounds of the formula, ##STR1## and 1:1 copper complexes of metallizable metal-free compounds of said formula and internal and external salts of metal-free compounds of said formula and of 1:1 copper complexes of metallizable metal-free compounds of said formula, whereineach Q is independently linear or branched C.sub.2-6 alkylene; linear or branched C.sub.2-6 alkylene interrupted by --O--, --S-- or --NR.sub.4 --; linear or branched C.sub.3-6 alkylene monosubstituted or disubstituted by hydroxy or --*NHCO--CH.sub.2 --, wherein the * denotes the atom attached to the --NR.sub.4 -- radical,each R.sub.1 is independently hydrogen, halo, nitro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, (C.sub.1-4 alkyl)carbonylamino, --SO.sub.2 NR.sub.3 R.sub.4, --CONR.sub.4 --C.sub.6 H.sub.5 or benzamido,R.sub.2 is hydrogen, hydroxy, halo, nitro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, (C.sub.1-4 alkyl)carbonylamino or --NHCONR.sub.3 R.sub.4,X is --NR.sub.5 R.sub.6 or --N.sup..sym. R.sub.7 R.sub.8 R.sub.9 An.sup..crclbar.
    Type: Grant
    Filed: August 15, 1986
    Date of Patent: August 16, 1988
    Assignee: Sandoz Ltd.
    Inventors: Jacky Dore, Reinhard Pedrazzi
  • Patent number: 4736021
    Abstract: There are described azo compounds of the formula ##STR1## wherein K is an optionally quaternized basic group,X is the radical COOR, in which R is an alkyl group or a substituted or unsubstituted phenyl group, or X is the radical CONHR', in which R' is an alkyl group or a substituted or unsubstituted phenyl group; and wherein the benzene rings B and/or D can be further substituted;and the use thereof as dyes for the dyeing of textile materials, and particularly for the dyeing of paper of all types, especially bleached, lignin-free, unsized paper.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: April 5, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Jean-Marie Adam, Pierre Galafassi
  • Patent number: 4694075
    Abstract: The compounds of the formula ##STR1## where Y is hydrogen, chlorine, bromine or nitro, Z is hydrogen, chlorine, bromine, a sulfonic ester group or unsubstituted or substituted sulfamyl, X is --O-- or ##STR2## R is alkylene which may or may not be interrupted by oxygen or ##STR3## m is 0 or 1, p is 1 or 2, R.sup.1 and R.sup.2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl, or aryl, or R.sup.1 and R.sup.2 together with the nitrogen form a heterocyclic structure, R.sup.3 is hydrogen or unsubstituted or substituted alkyl, R.sup.6 and R.sup.7 independently of one another are each hydrogen, unsubstituted or substituted alkyl, alkoxy or acylamino, K is a radical of a coupling component, A.crclbar. is an anion, R.sup.4 is unsubtituted or substituted alkyl and R.sup.5 is hydrogen or C.sub.1 -C.sub.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: September 15, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Colberg, Erwin Hahn
  • Patent number: 4675388
    Abstract: Polymers comprising two the more recurring units of formula ##STR1## wherein A.sub.1 is an aromatic bridging groupeach K.sub.1 is independently the radical of a coupling component,E is an aliphatic, aromatic or aromatic heterocyclic bridging radical,each R.sub.1 and R.sub.2 is independently C.sub.1-4 alkyl substituted C.sub.1-4 alkyl, C.sub.3-6 alkenyl or substituted C.sub.3-6 alkenyl orboth R.sub.1 's together with the nitrogen atom to which they are attached and/or both R.sub.2 3 s together with the nitrogen atom to which they are attached form a morpholinium, piperidinium or pyrrolidinium group, andeach A.sup..crclbar. is independently a non-chromophoric anion, are useful as dyes, particularly for dyeing paper and leather.
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: June 23, 1987
    Assignee: Sandoz Ltd.
    Inventors: Manfred Greve, Emil J. Moriconi, Helmut Moser
  • Patent number: 4670546
    Abstract: Compounds of the formula ##STR1## in metal-free, 1:1 or 1:2 metal complex form, or in acid addition salt form, where the symbols are defined in the specification, useful as dyes for, for example, regenerated cellulose, cotton, synthetic polyamides and polyesters modified to contain acid groups and polymers and copolymers of acrylonitrile and 1,1-dicyanoethylene.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: June 2, 1987
    Assignee: Sandoz Ltd.
    Inventors: Jacky Dore, Reinhard Pedrazzi
  • Patent number: 4656256
    Abstract: Compounds of the formula ##STR1## where Y is chlorine or bromine, Z is hydrogen, chlorine, bromine, a sulfonic ester group, nitro or unsubstituted or substituted sulfamyl, X is --O-- or ##STR2## R is alkylene which may or may not be interrupted by oxygen, ##STR3## m is 1 or 2, n is 0 or 1, p is 0, 1 or 2, q is 1 or 2, R.sup.1 and R.sup.2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, or R.sup.1 and R.sup.2, together with the nitrogen atom, form a heterocyclic structure, R.sup.3 is hydrogen or unsubstituted or substituted alkyl, B is hydrogen or C.sub.1 -C.sub.4 -alkyl, B.sup.1 is hydrogen, hydroxyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkyl, A.sup.- is an anion, R.sup.4 is unsubstituted or substituted alkyl, R.sub.5 is hydrogen or C.sub.1 -C.sub.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: April 7, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Colberg, Hans-Juergen Degen, Johannes P. Dix
  • Patent number: 4594410
    Abstract: Azo dyes of the formula ##STR1## and external salts thereof, wherein F is the residue of a monoazo or disazo compound in 1:1 metal complex form or of a trisazo, disazoazoxy or tetrakisazo compound in metal-free or 1:1 metal complex form,each X is independently --NR.sub.2 --Q--NR.sub.3 R.sub.4 or --NR.sub.2 --Q--N.sup..sym. R.sub.5 R.sub.6 R.sub.7,whereinQ is linear or branched C.sub.2-6 alkylene or --NH--CO--CH.sub.2 --,R.sub.2 is hydrogen or C.sub.1-4 alkyl,each of R.sub.3 and R.sub.4 is independently hydrogen; C.sub.1-6 alkyl; C.sub.2-6 alkyl monosubstituted by cyano or hydroxy in the 2-, 3-, 4-, 5- or 6-position; phenyl(C.sub.1-3 alkyl); phenyl(C.sub.1-3 alkyl) having, on the phenyl ring, 1, 2 or 3 substituents selected from chloro, C.sub.1-4 alkyl and C.sub.1-4 alkoxy; C.sub.5-6 cycloalkyl or C.sub.5-6 cycloalkyl substituted by 1, 2 or 3 C.sub.1-4 alkyl groups or --NR.sub.3 R.sub.
    Type: Grant
    Filed: August 18, 1982
    Date of Patent: June 10, 1986
    Assignee: Sandoz Ltd.
    Inventor: Reinhard Pedrazzi
  • Patent number: 4562247
    Abstract: There are described azo compounds of the formula ##STR1## wherein D.sub.1 and D.sub.2 are each the radical of a diazo component, R is C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 alkyl substituted by C.sub.1 -C.sub.4 -alkoxy or halogen or is phenyl or phenyl substituted by C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 alkoxy, and Y is a basic or cationic group. These azo compounds can be used as dyes for dyeing and printing natural and synthetic, cationically dyeing substrates, particularly textile materials and paper.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: December 31, 1985
    Assignee: Ciba Geigy Corporation
    Inventor: Visvanathan Ramanathan
  • Patent number: 4517357
    Abstract: Dyestuffs of the formula ##STR1## wherein U and W independently of each other are radicals of the formulae ##STR2## A is a bifunctional aromatic radical which is free of anionic groups, Q is a direct bond or a bridge member,X is a radical of the formula --COCH.sub.3, --CN, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --CONH.sub.2, --COC.sub.6 H.sub.5 or --CON(R.sub.3)--Y--N(R.sub.5 R.sub.6 R.sub.7) .sup.(+) An .sup.(-),Y is a divalent bridge member or a direct bond,R.sub.1 and R.sub.2 independently of each other are hydrogen or a nonionic substituent,R.sub.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl or .beta.- or .gamma.-C.sub.2 -C.sub.4 -hydroxyalkyl,R.sub.5 -R.sub.7 independently of one another are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkyl which is substituted by hydroxyl, amino, C.sub.1 -C.sub.4 -alkylamino, di-C.sub.1 -C.sub.4 -alkylamino or tri-C.sub.1 -C.sub.4 -alkylammonium, phenyl or benzyl orR.sub.5 and R.sub.
    Type: Grant
    Filed: August 30, 1982
    Date of Patent: May 14, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Kunde, Frank-Michael Stohr
  • Patent number: 4509948
    Abstract: Cationic dyestuffs of the general formula ##STR1## wherein D is the radical of a diazo component free of anionic groups,X is a radical of the formula COCH.sub.3, CN, COOCH.sub.3, COOC.sub.2 H.sub.5, CONH.sub.2 or COC.sub.6 H.sub.5,R.sub.1 and R.sub.2 independently of each other are hydrogen or a nonionic substituent andR.sub.3, R.sub.4 and R.sub.5 independently of one another are alkyl, alkenyl or aralkyl, orR.sub.3 and R.sub.4, together with the nitrogen to which they are bonded, form a 5- or 6-membered heterocyclic ring,n is 1 or 2 andAn.sup.(-) is an anion, andwherein the cyclic and acyclic radicals can in turn be substituted, are used for dyeing synthetic and natural cationically dyeable materials, such as cotton, paper, leather, polyacrylnitrile or acid-modified polyester or polyamide fibres.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: April 9, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter Wild, Frank-Michael Stohr
  • Patent number: 4497735
    Abstract: Azopigments resulting from coupling a diazoaryl compound with an acetoacetic acid derivative having a quaternary ammonium group linked to the terminal methyl group show increased color strength and improved stability on storing as compared with the corresponding azopigments not having the said quaternary ammonium group in the molecule. For example, 2-nitro-4-chloro phenyldiazonium chloride or dichlorobenzidinetertrazonium chloride is coupled with an omega-ammoniumacetic acid derivative. The arylide azopigments of the present invention can be used in printing inks.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: February 5, 1985
    Assignee: Kemisk Vaerk Koge A/S
    Inventors: Steffen C. Olsen, Arne Vinther