Thiazoles (including Hydrogenated) Patents (Class 8/691)
  • Patent number: 5342928
    Abstract: Azo dyes useful for dyeing or printing textile fibers or fabrics and containing novel aminobenzo heterocycles as diazo component have the formula ##STR1## where X is nitrogen or a radical of the formula CR.sup.6, where R.sup.6 is hydrogen, C.sub.1 -C.sub.4 -alkoxycarbonyl or C.sub.1 -C.sub.6 -alkanoyl,R.sup.1 and R.sup.2 are substituted or unsubstituted C.sub.1 -C.sub.10 -alkyl or substituted or unsubstituted C.sub.3 -C.sub.4 -alkenyl or additionally in the case of R.sup.1 hydrogen,R.sup.3 is hydrogen or C.sub.1 -C.sub.4 -alkoxy,R.sup.4 is C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -alkoxy, substituted or unsubstituted C.sub.1 -C.sub.8 -alkanoylamino, C.sub.1 -C.sub.4 -alkylsulfonylamino, C.sub.3 -C.sub.4 -alkenoylamino or substituted or unsubstituted C.sub.1 -C.sub.4 -alkoxycarbonylamino, andR.sup.5 is hydrogen, nitro, halogen, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio or cyano.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: August 30, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Roetsch, Helmut Hagen, Helmut Reichelt, Clemens Grund
  • Patent number: 5206375
    Abstract: The novel compound of the general formula I ##STR1## where X is fluorine, chlorine, bromine, SO.sub.2 Y or unsubstituted or substituted hydroxyl or mercapto, Y is alkyl, alkenyl, cycloalkyl, aralkyl, aryl, chlorine or unsubstituted or substituted hydroxyl or amino, R is hydrogen, C.sub.1 -C.sub.4 -alkyl or a radical which can be introduced by electrophilic substitution or a radial of the formula --CH.dbd.T, in which T is a radical of a methyleneactive compound or of an amine, and R.sup.1 is hydrogen, acyl or unsubstituted or substituted alkyl, cycloalkyl or alkenyl, and R.sup.2 is hydrogen or unsubstituted or substituted alkyl or alkenyl, or R.sup.1 and R.sup.2 together with the nitrogen form a saturated heterocyclic structure and R.sup.1 and R.sup.2 together form a radical of the formula ##STR2## are useful as diazo and/or coupling components or generally as dye intermediates, depending on their constitution.
    Type: Grant
    Filed: April 8, 1992
    Date of Patent: April 27, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Schefczik, Karl-Heinz Etzbach, Heinz Eilingsfeld
  • Patent number: 5175265
    Abstract: Benzisothiazole-azo dyes useful for dyeing synthetic fiber materials have the formula ##STR1## where X is hydrogen, chlorine, bromine, cyano or nitro and K is a radical of the formula ##STR2## where R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, substituted or unsubstituted phenyl, C.sub.3 -C.sub.5 -alkenyl or C.sub.5 -C.sub.7 -cycloalkyl,R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl,R.sup.3 is hydrogen or methyl andR.sup.4 is hydrogen, cyano, carbamoyl or C.sub.1 -C.sub.4 -alkoxycarbonyl.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: December 29, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Guenter Hansen, Helmut Hagen, Helmut Reichelt
  • Patent number: 5163972
    Abstract: Process to dye polyacrylonitrile in blue shades with cationic dye compounds: substituted benzothiazolium azo N-alkyl-N-hydroxyalkyl alkyl-aniline salts.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: November 17, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Wilfried Herter, Josef Koller
  • Patent number: 5143519
    Abstract: Concentrated dye solutions of dyes of the formula (1) shown in claim are described.The dye solutions are distinguished by a good storage stability and are suitable, in particular, for dyeing paper.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: September 1, 1992
    Assignee: Ciba-Geigy Corporation
    Inventor: Willy Stingelin
  • Patent number: 5112362
    Abstract: Dye mixtures useful for dyeing or printing synthetic fabrics contain at least one azo dye whose diazo component is 2-amino-3,5-dicyano-4-methylthiophene and whose coupling component comes from the 2-amino-4-thienylthiazole series and also at least one azo dye whose diazo component is 2-amino-3,5-dicyano-4-methylthiophene, 2-amino-3-alkoxycarbonyl-5-cyano-4-methylthiophene or 2-amino-5-alkoxycarbonyl-3-cyano-4-methylthiophene and whose coupling component comes from the 3-cyano-4-methyl-2,6-diaminopyridine series, and/or at least one azo dye whose diazo component is a 2,6-dicyano-4-alkylaniline and whose coupling component comes from the m-phenylenediamine series.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: May 12, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Erwin Hahn, Guenter Hansen, Gunther Lamm, Helmut Reichelt, Gerhard Wagenblast
  • Patent number: 4995885
    Abstract: Concentrated dye solutions of the formula (1) shown in claim 1 are described.The dye solutions are notable for a long shelf life and are suitable in particular for dyeing paper.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: February 26, 1991
    Assignee: Ciba-Geigy Corp.
    Inventor: Hans Morawietz
  • Patent number: 4968318
    Abstract: Mixtures of at least two different dyestuffs of the formulae ##STR1## in which the symbols have the meanings mentioned in the text represent a low-priced replacement for the known anthraquinone dyestuff Disperse Red 60.In the dyeing of mixed yarn, they are even superior with respect to sublimation fastness and cotton staining.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: November 6, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Wiegner, Wolf-Dieter Elsner
  • Patent number: 4931067
    Abstract: Method is set forth of dyeing a material comprising forming a solution having a basic salt of a water soluble dye of the formula: ##STR1## wherein n is 0 or 1;m is 0 or 1;m=1 when n=0;p=0 when m=1;p=1 when m=0;the subscripts 1 and 0 indicating, respectively, the presence and absence of the substituent subscripted;Y is CR.sub.2 COO, CR.sub.2 CR.sub.2 COO or CR.sub.2 CR.sub.2 CR.sub.2 COO;each R is independently hydrogen, methyl, ethyl, phenyl or phenyl substituted with methyl, ethyl, halo, cyano, ethynyl or nitro;G is CR, CR.sub.2 CR, CRCR.sub.2, CR.sub.2 CR.sub.2 CR, CR.sub.2 CRCR.sub.2 or CRCR.sub.2 CR.sub.2 ;E is OH, SH or NH.sub.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: June 5, 1990
    Assignee: SRI International
    Inventor: Ronald Swidler
  • Patent number: 4889535
    Abstract: Compounds of the formula ##STR1## and mixtures thereof, wherien p1 R.sub.1 is hydrogen, chloro or bromo, p1 R.sub.2 is hydrogen, chloro, bromo or nitro, p1 R.sub.3 is hydrogen, chloro, bromo, nitro or --SCN, p1 R.sub.4 is hydrogen, chloro or bromo, p1 R.sub.5 is hydrogen or C.sub.1-4 alkyl, and p1 R.sub.5 is C.sub.8-14 alkyl,with the provisos that (i) at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is other than hydrogen, (ii) when R.sub.3 is nitro or --SCN, R.sub.2 is other than nitro, and (iii) when two or more of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are halo, then R.sub.3 is one of those halos, are useful as disperse dyes for dyeing substrates such as synthetic and semi-synthetic, hydrophobic, high molecular weight organic materials.
    Type: Grant
    Filed: March 13, 1987
    Date of Patent: December 26, 1989
    Assignee: Sandoz Ltd.
    Inventor: Beat Henzi
  • Patent number: 4877412
    Abstract: Compounds of the formula ##STR1## in free acid or salt form and internal, external and acid addition salts thereof, whereinK is ##STR2## wherein R.sub.3 -R.sub.5, R.sub.20, R.sub.21 and X-Z are as defined in the specification,each of Q.sub.1 and Q.sub.2 is independently hydrogen or --SO.sub.3 M.sub.1,each R.sub.1 and R.sub.2 is independently hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or --COOM, andn is 0 or 1,wherein each M and M.sub.1 is independently hydrogen or a nonchromophoric cation, with the provisos that (i) the compound contains at least one --SO.sub.3 M or --SO.sub.3 M.sub.1 group, (ii) when K is a gruop of Formula (a), at least one of R.sub.4 and R.sub.5 is hydrogen, (iii) the total number of anionic groups equals or exceeds the total number of basic and cationic groups, (iv) the positive charge of each cationic group is balanced by the negative charge of an --SO.sub.3.sup..crclbar. or --COO.sup..crclbar.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: October 31, 1989
    Assignee: Sandoz Ltd.
    Inventor: Reinhard Pedrazzi
  • Patent number: 4820809
    Abstract: Novel compounds of the general formula I ##STR1## where X is hydrogen, nitro or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aryl or hetaryl, Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl, R is unsubstituted or substituted alkyl or aryl, R.sup.1 is hydrogen or R.sup.2, and R.sup.2 is unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, are useful for dyeing textile fibers, in particular polyesters.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Erwin Hahn, Guenter Hansen
  • Patent number: 4774324
    Abstract: Compounds of the general formula I ##STR1## where X is unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, Y is chlorine, bromine, carbamyl or cyano, Z is hydrogen, carbamyl, cyano or acetyl, R is hydrogen or C.sub.1 -C.sub.3 -alkyl, R.sup.1 and R.sup.3 independently of one another are each hydrogen or unsubstituted or substituted alkyl, alkenyl, cycloalkyl, aralkyl or aryl, R.sup.2 is hydrogen or unsubstituted or substituted alkyl and R.sup.1 and R.sup.2, together with the nitrogen atom, form a saturated 5-membered or 6-membered ring, are particularly useful for dyeing textile fibers.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: September 27, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Loeffler, Ernst Schefczik
  • Patent number: 4773915
    Abstract: Azo dyestuffs of the formula ##STR1## wherein R.sub.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxyethoxy andX denotes acyl,are distinguished by good levelling properties and good allround fastness properties. They dye polyester fibres in a bright blue shade.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: September 27, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Winfried Kruckenberg, Klaus Leverenz, Hans-Gunter Otten
  • Patent number: 4764178
    Abstract: A thermal transfer printing sheet comprising a substrate having a coating comprising at least one azo dye of the formula:A--N.dbd.N--E Iwherein:A is the residue of a diazotizable heteroaromatic amine, A--NH.sub.2, in which A is selected from imidazolyl, pyrazolyl, thiazolyl, benzothiazolyl, isothiazolyl, benzoisothiazolyl, pyridoisothiazolyl and thienyl; andE is the residue of an aromatic coupling component, E--X wherein X is a group displaceable by a diazotized aromatic amine and E is optionally substituted aminophenyl, tetrahydroquinolinyl, julolidyl or aminoquinolinyl,and a process for the transfer of dye from the transfer sheet to a receiver sheet by the selective application of heat to the transfer sheet while it is contact with the receiver sheet.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: August 16, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Peter Gregory, Raymond L. White
  • Patent number: 4734101
    Abstract: A monoazo dye for polyester fiber represented by formula ##STR1## and having a crystal modification characterized by an X-ray diffraction spectrum (CuK.alpha.) showing a very strong peak at an angle of diffraction (2.theta.) of about 14.2.degree., a strong peak at about 24.5.degree., and four weak peaks at about 16.9.degree., 23.6.degree., 25.3.degree., and 26.8.degree.. The monoazo dye exhibits excellent dispersibility to effect level dyeing even under high temperature and severe conditions and provides a dyed material excellent in light fastness and rubbing fastness, as well as wet fastness after post-finish.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: March 29, 1988
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Kiyoshi Himeno, Junji Yoshihara, Masateru Ishida
  • Patent number: 4722737
    Abstract: The azo dyestuff of the formula ##STR1## having the interplanar spacings D/.ANG. 3.13, 3.36, 4.85, 9.26 and 13.94 for the five strongest lines having the relative intensity use 98, 89, 82, 100 and 87 is distinguished, compared to known modifications by an increased dye bath stability.
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: February 2, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Horst Brandt, Klaus Leverenz
  • 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: 4626257
    Abstract: A method for dyeing polyester fiber materials is disclosed, comprising conducting combination dyeing by a combination of disperse dyes each capable of making up for the color fading of other disperse dye produced upon exposure to sunlight, by the color change thereof in hue caused upon the exposure to sunlight under the same condition.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: December 2, 1986
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshikazu Matsuo, Toshio Nakamatsu, Toshikazu Moriwaki, Sadaharu Abeta, Kunihiko Imada
  • Patent number: 4529406
    Abstract: A monoazo compound of the formula, ##STR1## wherein X is hydrogen atom or lower alkyl group; Z is hydrogen atom, halogen atom, alkyl group, acylamino group, benzoylamino group or alkylsulfonylamino group; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently are hydrogen atom or alkyl group, provided that R.sub.1, R.sub.2, R.sub.3 and R.sub.4 cannot simultaneously be hydrogen atoms; and R.sub.5 is hydrogen atom, alkyl group, substituted alkyl group, alkenyl group, cycloalkyl group, aralkyl group or phenyl group.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: July 16, 1985
    Assignee: Research Association of Dyestuff Manufacturers
    Inventors: Kiyoyasu Hashimoto, Akira Murata, Kiyoteru Kojima, Toshio Nakamatzu, Akira Takeshita
  • 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: 4504273
    Abstract: The invention relates to reactive dyes of the formula ##STR1## wherein R.sub.1 is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 alkyl or phenyl, R.sub.2 is hydrogen or unsubstituted or substituted C.sub.1 -C.sub.4 alkyl, R.sub.3 is hydrogen, cyano, carbamoyl or sulfomethyl, R.sub.4 and R.sub.5 are each independently hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, carboxy or sulfo, X is fluorine, chlorine or bromine, and Z is an unsubstituted or substituted benzthiazolyl-(2)-phenyl radical, which are suitable for dyeing or printing cellulosic fibers and produce brilliant greenish yellow dyeings.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: March 12, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: Rainer Begrich, Jean-Francois Landre
  • Patent number: 4464181
    Abstract: Dye mixtures which comprise two or more dyes of the formula ##STR1## ps where X is hydrogen, methyl or chlorine, and R is a radical of the formula OR.sup.1, OCOCH.sub.3, OCOC.sub.2 H.sub.5, R.sup.1 being hydrogen or C.sub.1 -C.sub.4 -alkyl, are very useful for dyeing cellulose esters.
    Type: Grant
    Filed: January 11, 1983
    Date of Patent: August 7, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Helmut Degen, Johannes P. Dix, Norbert Grund, Guenter Hansen, Reinhold Krallmann
  • Patent number: 4451398
    Abstract: Dyes of the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl or C.sub.2 -C.sub.6 -alkenyl, R.sup.2 and R.sup.3 independently of one another are hydrogen, C.sub.1 -C.sub.5 -alkyl or C.sub.2 -C.sub.5 -alkenyl, R.sup.4 is C.sub.1 -C.sub.12 -alkyl or hydroxy-C.sub.2 -C.sub.4 -alkyl, X.sup..crclbar. is one equivalent of an anion, mis from 0 to 5 and n is from 0 to 5, with 1.ltoreq.(m+n).ltoreq.5, and F is an (m+n)-valent radical of a monoazo dye, a disazo dye, a polyazo dye, a quinophthalone, a bis-dioxazine, a compound of the 5,6-arylo-2-pyrone series, a naphtholactam dye, a triphenylmethane dye, a xanthene dye, a phthalocyanine, an indigoid, an anthraquinone dye containing one or more phenyl or naphthyl groups, a more highly fused carbonyl-containing dye, a quinacridone, a perylene-3,4,9,10-tetracarboxylic acid diimide, an anthrapyrimidine, a pyrazoloanthrone, a diaminonaphthoquinone, a naphthazarine or a naphthalene-1,4,5,8-tetracarboxylic acid diimide.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: May 29, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Manfred Patsch, Manfred Ruske
  • Patent number: 4440681
    Abstract: Water-insoluble azo dyestuffs, their manufacture and use, which have the formula ##STR1## wherein D is a substituted phenyl or heterocyclic moiety which are free from ionic substituents and R.sup.1 is methyl or ethyl.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: April 3, 1984
    Assignee: Cassella Aktiengesellschaft
    Inventors: Horst Tappe, Rudolf Lowenfeld, Uwe Kosubek, Maria Kallay
  • Patent number: 4425133
    Abstract: The dyes of the formula I indicated in patent claim 1 are suitable for dyeing furs and especially leather. They are preferably used as a mixture with a blue dye and a yellow dye for dyeing leather by the trichromatic process.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: January 10, 1984
    Assignee: Ciba-Geigy Corporation
    Inventor: Alois Puntener
  • Patent number: 4416665
    Abstract: Water-insoluble azo dyestuff of the formula ##STR1## its manufacture and its use as the dyestuff in the dyeing and printing of hydrophobic fiber materials.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: November 22, 1983
    Assignee: Cassella Aktiengesellschaft
    Inventors: Horst Tappe, Kurt Roth
  • Patent number: 4406661
    Abstract: Azo dyestuffs free from groups imparting solubility in water are used in the process for the production of white or variously colored designs on a colored substrate on textile materials containing hydrophobic, synthetic fibers by impregnating the materials with dye liquors containing dyeing auxiliaries and padding auxiliaries as well as dyestuffs which are dischargeable to white, drying or incipiently drying the impregnated materials, printing the materials with an alkaline discharge reserve paste which contains a discharging agent, and subsequently subjecting the materials to a heat treatment at temperatures from 100.degree. to 230.degree. C., wherein said discharging agent is a base which produces a pH value of at least 8 in a 5% strength aqueous solution and the dyestuffs which are dischargeable to white are of the formulaD--N.dbd.N--K--NHSO.sub.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: September 27, 1983
    Assignee: Cassella Aktiengesellschaft
    Inventors: Ulrich Buhler, Joachim Ribka, Horst Tappe, Kurt Roth
  • Patent number: 4389215
    Abstract: Anthraquinone-azomethine compounds of the formula ##STR1## or of the tautomeric formula ##STR2## or of the tautomeric formula ##STR3## in which A denotes an anthraquinone radical which is free from sulphonic acid groups and optionally further substituted and which preferably consists of at most 5 fused rings,R.sub.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, hydroxy-C.sub.1 -C.sub.4 -alkyl, optionally substituted phenyl, carboxyl, carboxylic acid, C.sub.1 -C.sub.4 -alkyl ester or hydroxyl,R.sub.2 denotes hydrogen, halogen, nitro, cyano, optionally substituted carbamoyl or optionally substituted sulphamoyl, sulphonic acid C.sub.1 -C.sub.4 -alkyl ester, sulphonic acid aryl ester, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, optionally substituted benzoyl, alkyl or optionally substituted phenyl sulphone, or a hetero-aromatic radical, for example a radical of the formula ##STR4## or of the formula ##STR5## or of the formula ##STR6## R.sub.
    Type: Grant
    Filed: September 24, 1981
    Date of Patent: June 21, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rutger Neeff, Meinhard Rolf, Walter Muller
  • Patent number: 4349348
    Abstract: Improved textile materials are produced having white or variously colored designs on a colored substrate on textile materials containing hydrophobic, synthetic fibers by impregnating the materials with dye liquors containing dyeing and padding auxiliaries as well as dyestuffs dischargeable to white, drying or incipiently drying the impregnated materials and then printing a desired pattern onto the materials with a discharge reserve paste containing a discharging agent, and subsequently subjecting the materials to a heat treatment at temperatures from 100.degree. to 230.degree. C., the improvement comprises the dyestuffs dischargeable to white being dyestuffs of the formula ##STR1## wherein n is a number from 1 to 9; and said discharging agent being a base which produces a pH value of at least 8 in a 5% strength aqueous solution.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: September 14, 1982
    Assignee: Cassella Aktiengesellschaft
    Inventors: Horst Tappe, Horst Kindler, Kurt Roth, Hans-Jurgen Weyer
  • Patent number: 4314817
    Abstract: Compounds of the formula ##STR1## in which R is --CH.sub.3, --C.sub.2 H.sub.5, --CH.sub.2 CH.sub.2 OH, --CH.sub.2 CH(OH)CH.sub.3 or --CH.sub.2 CH.dbd.CH.sub.2 ;R.sub.1 is --H or --CH.sub.3 ;R.sub.2 is --H or --CH.sub.3 ;R.sub.3 is --OCH.sub.3 or --OC.sub.2 H.sub.5 ;R.sub.4 is --H, --CH.sub.3, --C.sub.2 H.sub.5, n- or i- C.sub.3 H.sub.7, --CH.sub.2 CH.sub.2 OH or --CH.sub.2 CH.dbd.CH.sub.2 ;R.sub.5 is --H, --CH.sub.3, --C.sub.2 H.sub.5, n- or i- C.sub.3 H.sub.7 or R.sub.3 and R.sub.5 together with the N-atom to which R.sub.5 is attached and ring B form the group ##STR2## wherein R.sub.2 and R.sub.4 are as defined above, andR.sub.6 is --H or CH.sub.3 ; andA.sup..crclbar. is an anion,which are suitable for use as dyes, particularly for dyeing textile substrates comprising or consisting of homopolymers and copolymers of acrylomotrile or asymmetric dicyanoethylene, polyamides modified to contain acid groups and polyesters modified to contain acid groups and for leather, paper and plastics.
    Type: Grant
    Filed: August 11, 1980
    Date of Patent: February 9, 1982
    Assignee: Sandoz Ltd.
    Inventor: Berthold Gertisser
  • Patent number: 4300901
    Abstract: A liquid dyestuff composition, especially suitable for dyeing paper, comprises:(a) 5-40% by weight of a dyestuff having the formula: ##STR1## wherein X is hydrogen or an alkali metal cation, n represents an integer from 1 to 2, Q and Q.sub.1 together form a fused benzene or naphthalene residue, and Y is a residue having the formula ##STR2## whereby ring A, the fused residue formed by Q and Q.sub.1, or the residue Y can each be further substituted by one or more alkyl, alkoxy, hydroxy, carboxy or dehydrothio-p-toluidine groups or halogen atoms;(b) 1-10% by weight of an alkali metal hydroxide;(c) 45-75% by weight of a polyhydric alcohol or a water-soluble ether thereof; and(d) 0-40% by weight of water.
    Type: Grant
    Filed: May 27, 1980
    Date of Patent: November 17, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Brian L. Yates, Malcolm C. Clark