Bicyclo Carbocyclic Ring System Bonded Directly To The Azo Group Patents (Class 534/778)
  • Patent number: 8329880
    Abstract: The invention relates to a process for preparing naphthalen-2-yl-pyrazol-3-one intermediates, tautomers, and salts thereof, to novel intermediates, and to the use of the intermediates in the preparation of sigma receptor inhibitors.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: December 11, 2012
    Assignee: Laboratorios del Dr. Esteve, S.A.
    Inventors: Antoni Torrens Jover, Jordi Corbera Arjona, Maria Rosa Cuberes-Altisent
  • Patent number: 8293148
    Abstract: An azo pigment showing excellent coloring characteristics such as tinctorial strength and hue and excellent fastness such as light fastness, and a pigment dispersion containing the azo pigment are provided. An azo pigment represented by the following general formula (1) and a pigment dispersion containing the pigment: wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, or a sulfonyl group, R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R2 represents a substituent, A represents an aromatic 5- to 6-membered heterocyclic group, m represents an integer of from 0 to 5, and n represents an integer of from 1 to 4.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: October 23, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Nobuo Seto, Masahiro Higashi, Keiichi Tateishi
  • Publication number: 20110143270
    Abstract: An azo pigment and a pigment dispersion showing excellent coloring characteristics such as tinctorial strength and hue and excellent fastness such as light fastness are provided. An azo pigment represented by the following general formula (1), its tautomer, a salt or hydrate thereof: (wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, a sulfonyl group, R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R2 represents a substituent, A represents an aromatic 5- or 6-membered heterocyclic group, m represents an integer of from 0 to 5, n represents an integer of from 1 to 4 and, when n=2, the formula represents a dimer formed through R1, R2, A, or G and, when n=3, the formula represents a trimer formed through R1, R2, A, or G and, when n=4, the formula (1) represents a tetramer formed through R1, R2, A, or G.
    Type: Application
    Filed: July 17, 2009
    Publication date: June 16, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Nobuo Seto, Masahiro Higashi, Keiichi Tateishi, Hideki Takakuwa
  • Patent number: 7794509
    Abstract: Disclosed are tricationic dye compounds, useful for dyeing hair, wool, leather, silk, cellulose or polyamides. The dye compounds are of formula (1), where the groups are as defined in the specification and claims.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: September 14, 2010
    Assignee: Ciba Corporation
    Inventors: Christian Cremer, Olof Wallquist, Victor Paul Eliu, Kishor Ramachandra Nivalkar
  • Publication number: 20080241394
    Abstract: A compound of Formula (1) or a salt thereof: wherein: A is optionally substituted aryl or optionally substituted heterocyclyl; and R1 and R2 are independently H or a substituent. Also metal chelates, compositions, inks, printing processes, printed material and ink-jet cartridges.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Inventor: Gavin WRIGHT
  • Publication number: 20030186947
    Abstract: Compounds having Formula 4 wherein the symbols have the meaning defined in the specification are inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids.
    Type: Application
    Filed: February 11, 2003
    Publication date: October 2, 2003
    Inventors: Jayasree Vasudevan, Alan T. Johnson, Liming Wang, Roshantha A. Chandraratna
  • Patent number: 6399774
    Abstract: Compounds having Formula 1 wherein the symbols have the meaning defined in the specification are inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: June 4, 2002
    Assignee: Allergen Sales, Inc.
    Inventors: Jayasree Vasudevan, Alan T. Johnson, Dehua Huang, Roshantha A. Chandraratna
  • Patent number: 6387892
    Abstract: Novel compounds having the Formulas 1 through 8, wherein the symbols have the meaning defined in the specification, and certain previously known compounds have been discovered to act as inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids. The compound can also be used in co-treatment with retinoids.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: May 14, 2002
    Assignee: Allergan Sales, Inc.
    Inventors: Jayasree Vasudevan, Alan T. Johnson, Liming Wang, Dehua Huang, Roshantha A. Chandraratna
  • Patent number: 6359135
    Abstract: Compounds having Formula 1 wherein the symbols have the meaning defined in the specification are inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: March 19, 2002
    Assignee: Allergan Sales, Inc.
    Inventors: Jayasree Vasudevan, Alan T. Johnson, Dehua Huang, Roshantha A. Chandraratna
  • Patent number: 6252090
    Abstract: Compounds having Formula 1 wherein the symbols have the meaning defined in the specification are inhibitors of the cytochrome P450RAI (retinoic acid inducible) enzyme, and are used for treating diseases responsive to treatment by retinoids.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: June 26, 2001
    Assignee: Allergan Sales, Inc.
    Inventors: Jayasree Vasudevan, Alan T. Johnson, Dehua Huang, Roshantha A. Chandraratna
  • Patent number: 6187084
    Abstract: An ink comprising water, a water-dissipatable polymer and one or more dyes of Formula (1): wherein: R1 is H or a substituent; R2 and R3 are each independently optionally substituted alkyl, aryl or aralkyl, or R2 and R3 together with the carbon atom to which they are attached form an optionally substituted ring; R4 is H or optionally substituted alkyl, aryl or aralkyl; and D is an optionally substituted arylene group. Also claimed are the dyes of Formula (1), ink jet printing processes and cartridges containing the inks.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: February 13, 2001
    Assignee: Zeneca Ltd.
    Inventors: Roy Bradbury, Clive Moscrop, Barry Huston Meyrick, Mark Holbrook
  • Patent number: 5716754
    Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: February 10, 1998
    Assignee: Polaroid Corporation
    Inventors: Michael J. Arnost, Peter Viski, David P. Waller, David C. Whritenour
  • Patent number: 5612221
    Abstract: Avidin-binding azo reagents which alter the spectrophotometric properties of avidin and the use of such reagents in homogeneous assays are described.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: March 18, 1997
    Assignee: Dade Chemistry Systems Inc.
    Inventors: Donald M. Simons, Susan Y. Tseng, Patricia C. Weber
  • Patent number: 5536820
    Abstract: Avidin-binding azo reagents which alter the spectrophotometric properties of avidin and the use of such reagents in homogeneous assays are described.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: July 16, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donald M. Simons, Susan Y. Tseng, Patricia C. Weber
  • Patent number: 5326865
    Abstract: Arylazo and poly(arylazo) dyes having at least one core radical selected from naphthyl or anthracyl and having at least one 2,3-dihydro-1,3-dialkyl perimidine substituent, a guest-host composition comprising a liquid crystal host solvent and the arylazo or poly(arylazo) dichroic dye, and a liquid crystal display comprising the guest-host composition, are disclosed.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: July 5, 1994
    Assignee: Hercules Incorporated
    Inventors: Robert P. Grasso, Michael K. O'Brien, Paul J. Shannon
  • Patent number: 5283326
    Abstract: The compounds of the general formula ##STR1## where X is fluorine, chlorine, bromine, SO.sub.2 E or unsubstituted or substituted hydroxyl or mercapto, E is alkyl, alkenyl, cycloalkyl, aralkyl, aryl, chlorine or unsubstituted or substituted hydroxyl or amino, Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl, T is hydrogen, C.sub.1 -C.sub.4 -alkyl, a radical which can be introduced by electrophilic substitution or a radical of the formula --CH.dbd.B, in which B is a radical of a methylene-active compound or of an amine, and K is a radical of a coupling component, are very useful for dyeing synthetic fibers or plastics.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: February 1, 1994
    Assignee: Sandoz AG
    Inventors: Guenter Hansen, Ernst Schefczik, Karl-Heinz Etzbach, Helmut Reichelt, Hermann Loeffler
  • Patent number: 5183813
    Abstract: A pharmaceutical composition for treating cardiac arrhythmias or inhibiting ventricular tachycardias comprises an effective amount of a compound having the structural formula: ##STR1## or a pharmaceutically acceptable salt thereof; wherein at least one R.sup.1 is H and the other R.sup.1 is H, alkyl, halogen, alkoxy or alkylthio;R.sup.2 is alkyl containing at least 2 carbon atoms, benzyl or aryl;R.sup.3 is alkyl or aryl; andR.sup.a and R.sup.b taken together with the carbon and nitrogen atoms to which they are attached represent a heterocyclic group; together with a non-toxic pharmaceutically acceptable carrier. The compounds and compositions are useful in methods of treating cardiac arrhythmias and inhibiting ventricular tachycardias in mammalian subjects.In composition of matter aspect, this invention relates to certain novel 2-(2-iminoethylidene)benzimidazolines and neutral tautomers thereof.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: February 2, 1993
    Assignee: Sterling Winthrop Inc.
    Inventors: Kenneth C. Mattes, Bhaskar R. Venepalli
  • Patent number: 5132411
    Abstract: Compounds of the formula ##STR1## wherein R is halo,R.sub.1 is cyano; (C.sub.1-6 alkoxy)carbonyl; (C.sub.3-6 alkenyl)oxycarbonyl; C.sub.1-4 alkylsulfonyl; phenylsulfonyl; (C.sub.1-4 alkyl)carbonyl; benzoyl; carbamoyl; (C.sub.1-4 alkyl)carbamoyl; N,N-di-(C.sub.1-4 alkyl)carbamoyl; phenylcarbamoyl; benzyloxycarbonyl; or (C.sub.1-6 alkoxy)carbonyl, (C.sub.3-6 alkenyl)oxycarbonyl, C.sub.1-4 alkylsulfonyl, phenylsulfonyl or (C.sub.1-4 alkyl)carbamoyl substituted by one or two substituents independently selected from chloro, bromo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, hydroxy, cyano and acyl, andR.sub.2 is formyl, cyano, --CH.dbd.C(R.sub.4).sub.2 or --CH.dbd.N--OH,wherein (1) each R.sub.4 is independently cyano; (C.sub.1-6 alkoxy)carbonyl; (C.sub.3-6 alkenyl)oxycarbonyl; (C.sub.3-6 alkynyl)oxycarbonyl; or (C.sub.1-6 alkoxy)carbonyl, (C.sub.3-6 alkenyl)oxycarbonyl or (C.sub.3-6 alkynyl)oxycarbonyl substituted by one or two substituents independently selected from chloro, bromo, C.sub.1-4 alkyl, C.sub.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: July 21, 1992
    Assignee: Sandoz Ltd.
    Inventors: Robert Egli, Beat Henzi
  • Patent number: 5128457
    Abstract: Newly synthesized chromogenic thiol-indicating benzoisthiazolone derivatives having the structure: ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are as defined in the specification, are useful in the detection of thiols, particularly in an aqueous system. This process comprises contacting the aqueous system with a chromogenic thiol-indicating benzoisothiazolone derivative as described herein. Chromophoric changes due to thiol-mediated reduction of the benzothiazolone derivative then occur. Such changes can be in a solution or on an indicator surface in contact or having been in contact with the aqueous system. The chromophoric changes, due to a bathochromic shift in characteristics light absorption upon reduction of the benzoisothiazolone derivative, are proportional to the amount or rate of appearance of thiols in the aqueous system.
    Type: Grant
    Filed: December 5, 1991
    Date of Patent: July 7, 1992
    Assignee: Miles Inc.
    Inventors: James P. Albarella, David L. Garling, Robert P. Hatch
  • Patent number: 5116958
    Abstract: Disperse dyes, which produce dyeings of excellent thermomigration fastness, consisting of a chromophore and a lactam or oxime radical which detaches on heating to leave an isocyanate or isothiocyanate group, which reacts with a suitable group in the environment. The disclosed dyes are described by the formula ##STR1## where F is the radical of a dye which is free of water-solubilizing groups,B is a bridge member or a direct bond,Z is O or S andV is the radical of a group H--V, where H--V is an oxime of the formula ##STR2## or a lactam of the formula ##STR3## in which R.sup.1 and R.sup.2 are each independently of the other substituted or unsubstituted alkyl or aryl, orR.sup.1 and R.sup.2 together with the carbon atom linking them form a cycloaliphatic ring,R is hydrogen or alkyl andn is an integer from 4 to 11.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: May 26, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Liechti, Martin Trottmann
  • Patent number: 4962040
    Abstract: 2-Hydrazono-4,6-dinitrobenzthiazolones of the formula ##STR1## in which X.sub.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -hydroxyalkyl, C.sub.1 -C.sub.4 -sulphoalkyl or C.sub.1 -C.sub.4 -sulphatoalkyl, andX.sub.2 represents hydrogen or --SO.sub.2 X.sub.3, whereX.sub.3 may represent hydrogen, C.sub.1 -C.sub.8 -alkyl or optionally substituted aryl andX.sub.1 also represents a double bond between the cyclic nitrogen atom and the carbon atom 2 according to the formula II below: ##STR2## where X.sub.2 has the meaning specified under the above formula. These hydrazones may be employed in the preparation of azo dyestuffs and as color formers for detecting of biological substances, and in the determination of H.sub.2 O.sub.2.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: October 9, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Hugl, Aloysius Engel, Klaus Wehling
  • Patent number: 4960874
    Abstract: Compounds of the general formula I ##STR1## where R is alkyl or unsubstituted or substituted aryl and K is a radical of the formula ##STR2## B is C.sub.1 -C.sub.4 -alkyl or substituted amino, R.sup.1 is hydrogen, methyl, methoxy or ethoxy, R.sup.2 and R.sup.3 independently of one another are each unsubstituted or substituted alkyl, R.sup.3 may furthermore be hydrogen, R.sup.4 is a radical of the formula --A--OCO--Y--R, Z is hydrogen or methyl, X is hydrogen, methyl, methoxy, chlorine or acylamino, A is C.sub.2 - or C.sub.3 -alkylene and Y is --O-- or --NH--, are very useful for dyeing cellulose esters and synthetic polyesters.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: October 2, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Johannes D. Dix, Guenter Hansen, Ernst Schefczik, Guenther Seybold
  • Patent number: 4880431
    Abstract: A monoazo compound of the following formula, ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently hydrogen or alkyl, R.sub.4 is alkyl or carboxy, A is ##STR2## in which R.sub.5 is hydrogen, methyl, methoxy, ethoxy, sulfo or carboxy, X is hydrogen or sulfo, n is 0 or 1, and the asterisked linkage bonds to the azo group, B.sub.1 and B.sub.2 are independently phenylene or naphthylene, W is hydrogen, carbamoyl, sulfoalkyl, cyano, sulfo, chloro or bromo, and Y.sub.1 and Y.sub.2 are independently --CH.dbd.CH.sub.2, --CH.sub.2 CH.sub.2 OSO.sub.3 H or the like, which is useful for dyeing hydroxy group- or carbonamide group-containing materials in a deep yellow color excellent in various fastness properties such as light fastness, perspiration-light fastness and chlorine fastness.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 14, 1989
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kazufumi Yokogawa, Naoki Harada, Takashi Omura
  • Patent number: 4764600
    Abstract: An isothiazolylazo dye of the formula I ##STR1## wherein R is an alkyl group or unsubstituted aryl or substituted aryl group selected from the group consisting of ##STR2## and K is a radical of the formula ##STR3## where B is C.sub.1 -C.sub.4 alkyl or a substituted amino radical selected from the group consisting of ##STR4## R.sup.1 is hydrogen, methyl, methoxy or ethoxy, R.sup.2 and R.sup.3 independently of one another are each unsubstituted C.sub.1 -C.sub.4 alkyl or substituted alkyl groups selected from the group of C.sub.1 -C.sub.4 alkyls which are substituted by chlorine, bromine, cyano, hydroxyl, C.sub.1 -C.sub.4 -alkoxy, benzyloxy, phenoxy, phenyl, C.sub.1 -C.sub.4 -alkylcarbonyloxy which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkoxy, phenoxy or phenyl, phenycarbonyloxy which is unsubstituted or substituted by chlorine, bromine, methoxy, ethoxy, methyl or ethyl, oxycarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: January 25, 1983
    Date of Patent: August 16, 1988
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Johannes P. Dix, Guenter Hansen, Ernst Schefczik, Guenther Seybold
  • Patent number: 4734490
    Abstract: Novel monoazo compounds of the formula I ##STR1## and mixtures of these compounds with one another are described. The substituents X, R, R.sub.1, R.sub.2 and R.sub.3 are defined as follows: R is a phenyl or naphthyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is a cycloalkyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is a C.sub.1 -C.sub.8 -alkyl radical which is unsubstituted or substituted by cyano, halogen, phenyl or sulfophenyl, or is a propenyl radical which is unsubstituted or substituted by halogen, X is hydrogen or halogen, R.sub.1 is hydrogen or a C.sub.1 -C.sub.4 -alkyl radical, R.sub.2 is C.sub.1 -C.sub.8 -alkyl radical, a C.sub.1 -C.sub.4 -sulfatoalkyl radical, a C.sub.1 -C.sub.4 -sulfoalkyl radical or a cycloalkyl radical and R.sub.3 is a C.sub.1 -C.sub.4 -alkyl radical, or is a cycloalkyl radical which is unsubstituted or substituted by C.sub.1 -C.sub.
    Type: Grant
    Filed: August 28, 1986
    Date of Patent: March 29, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Hansrudolf Schwander, Christian Zickendraht
  • Patent number: 4711954
    Abstract: Azo dyestuffs which contain at least one water-solubilizing group and have the formula ##STR1## wherein K stands for the radical of a coupling component,R.sub.1 stands for CN, COOX, CONXY or COZ,R.sub.2 stands for hydrogen, halogen, CN, alkyl or aryl,R.sub.3 stands for alkyl or aryl,X stands for H, alkyl, alkenyl, cycloalkyl, aryl or aralkyl andY stands for H or alkyl andZ stands for alkyl or aryl,are highly suitable for dyeing polyamide fibres. The resulting dyeings are distinguished by good all-round fastness properties.
    Type: Grant
    Filed: March 4, 1986
    Date of Patent: December 8, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Holger Heidenreich, Gerhard Wolfrum
  • Patent number: 4685934
    Abstract: Monoazo compounds of formula ##STR1## wherein R.sub.1 is a coupling component radical,R.sub.1 is C.sub.1-6 alkyl; C.sub.1-6 alkyl substituted by 1 or 2 substituents selected from chloro, cyano, hydroxy, C.sub.1-4 alkoxy, phenyl and phenyl substituted by 1 or 2 substituents selected from chloro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, carboxy, sulfo, sulfamoyl and acetamido; C.sub.5-7 cycloalkyl; C.sub.5-7 cycloalkyl substituted by 1 to 3 C.sub.1-4 alkyl groups; phenyl; phenyl substituted by 1 to 3 substituents selected from chloro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, acetamido (maximum of 1), carboxy (maximum of 1), sulfo (maximum of 1) and --SO.sub.2 NR.sub.7 R.sub.8 (maximum of 1); 1- or 2-naphthyl or 1- or 2-naphthyl substituted by sulfo,whereineach of R.sub.7 and R.sub.8 is independently hydrogen; C.sub.1-4 alkyl; C.sub.1-4 alkyl monosubstituted by hydroxy or phenyl; cyclohexyl; phenyl or phenyl monosubstituted by chloro, methyl or methoxy, or--NR.sub.7 R.sub.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: August 11, 1987
    Assignee: Sandoz Ltd.
    Inventors: Francois Benguerel, Roland Mislin
  • Patent number: 4668775
    Abstract: A compound of the formula: ##STR1## wherein K is a radical of a coupling component, R is a radical of a methylene-active compound, X is hydrogen or unsubstituted or substituted alkyl, aryl, or hetaryl and Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl. The present compound is useful for the dyeing of polyesters, nylons, cellulose esters and blends of polyesters and cellulose fibers.
    Type: Grant
    Filed: July 24, 1985
    Date of Patent: May 26, 1987
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Erwin Hahn, Guenter Hansen
  • Patent number: 4619992
    Abstract: A compound of the formula: ##STR1## where R is hydrogen, C.sub.1 -C.sub.4 -alkyl, phenyl, chlorophenyl, methylphenyl, methoxyphenyl or nitrophenyl; R.sup.1 is allyl, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkyl substituted by C.sub.1 -C.sub.8 -alkoxy, phenoxy, phenyl or C.sub.1 -C.sub.8 -alkanoyloxy, cyclopentyl, cyclohexyl, methylcyclohexyl, norbornyl, phenyl or phenyl substituted by chlorine, methyl or alkoxy; R.sup.2 is C.sub.1 -C.sub.10 -alkanoyl, C.sub.1 -C.sub.10 -alkanoyl substituted by alkoxy or phenoxy, cyclohexanoyl, benzoyl, benzoyl substituted by chlorine, methyl or methoxy, C.sub.1 -C.sub.8 -alkoxycarbonyl, aminocarbonyl, phenylaminocarbonyl, CH.sub.3 NHCO, C.sub.2 H.sub.5 NHCO, C.sub.3 H.sub.7 NHCO, C.sub.4 H.sub.9 NHCO, (CH.sub.3).sub.2 NCO, CH.sub.3 SO.sub.2, C.sub.6 H.sub.5 SO.sub.2 or p--CH.sub.3 --C.sub.6 H.sub.4 --SO.sub.2 ; or R.sup.1 and R.sup.2, together with the nitrogen atom, form a ring system, and K is a radical of a coupling component.
    Type: Grant
    Filed: March 12, 1985
    Date of Patent: October 28, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Johannes P. Dix, Guenter Hansen, Ernst Schefczik
  • Patent number: 4582898
    Abstract: Aniline derivatives of the formula ##STR1## wherein X=alkyl,Z=H or alkyl, andY=S-alkyl, SO.sub.2 -alkyl, CO.sub.2 -R (R=alkyl, cycloalkyl, or H) or--if Z=H--Br,are diazo components for preparing valuable azo dyestuffs and starting materials for preparing compounds of the formula ##STR2## and new azo dyestuffs derived therefrom and which--in their nonionic form--are highly suitable for dyeing polyester fibres in blue shades having high tinctorial strength and high fastness levels.
    Type: Grant
    Filed: October 12, 1984
    Date of Patent: April 15, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventor: Rainer Hamprecht
  • Patent number: 4565424
    Abstract: A dichroic dyestuff having the formulaQ--A--Zwherein:A is a poly(arylazo) linking group wherein the aryl comprises 6 to 10 carbon atoms and has 4,4'-azo linkages;Q is a bis-substituted aryl thiazyl substituent wherein the aryl comprises 6 to 10 carbon atoms;andZ is selected from the group consisting of naphthalene having an alkyl substituted amino in the 4 position, 2,3-dihydro-2,2'-substituted-perimidine and julolidine groups;forms guest-host combinations with nematic liquid crystals. These dichroic dyes have absorption maxima at wavelengths greater than 600 nanometers and transmit less than 50% of incident light having wavelengths between 600 and 700 nanometers. Thus these dyes, when combined with dichroic dyes which have absorption maxima between 400 and 600 nanometers, and nematic liquid crystals, are useful to provide electro-optical displays which change from clear to a neutral black color or vice versa when an electric field is applied to the electro-optical display.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: January 21, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: William A. Huffman, James C. Novack
  • Patent number: 4505857
    Abstract: Compounds of the formula ##STR1## in which K is the radical of a coupling component of the aniline, .alpha.-naphthylamine, pyrazolone, aminopyrazole, indole, tetrahydroquinoline, thiazole, phenol, naphthol, pyridine or pyridone series.R is --CHO, --CH.dbd.C(CN)--R.sub.1, --CH.dbd.CH--R.sub.2, --CH.dbd.C(NO.sub.2)--R.sub.3, --CH.dbd.NOH or --CN,wherein R.sub.1 is (C.sub.1-10 alkoxycarbonyl; (C.sub.1-10 alkoxy)carbonyl monosubstituted by chloro, bromo, cyano, hydroxy, C.sub.1-2 alkoxy, (C.sub.1-2 alkyl)carbonyloxy or (C.sub.1-2 alkoxy)carbonyl; (C.sub.1-10 alkoxy)carbonyl disubstituted by hydroxy and by chloro or bromo; (C.sub.3-8 alkenyl)oxycarbonyl; (C.sub.3-8 chloroalkenyl)oxycarbonyl; (C.sub.3-8 bromoalkenyl)oxycarbonyl; propynyloxycarbonyl; benzyloxycarbonyl; chlorobenzyloxycarbonyl; nitrobenzyloxycarbonyl; C.sub.1-4 alkylsulfonyl; phenylsulfonyl; tolylsulfonyl; carbamoyl; (C.sub.1-2 alkyl)carbamoyl; di(C.sub.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: March 19, 1985
    Assignee: Sandoz Ltd.
    Inventor: Robert Egli
  • Patent number: 4505856
    Abstract: Azo dyestuff 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 material wherein the dyestuff is dischargeable to white and is of the formulaD--N.dbd.N--K--NHSO.sub.2 Rwhereinwherein D is 6-nitrobenzthiazol-2-yl, 5-nitrobenzisothiazol-3-yl, a substituted phenyl, a substituted thiazole or a substituted thiophene moiety;K is a 1,4-phenylene, 1,4-naphthylene, 2,5-thiazolylene or 2,5-thienylene; andR is alkyl, substituted alkyl, alkenyl, substituted alkenyl, phenyl or substituted phenyl.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: March 19, 1985
    Assignee: Cassella Aktiengesellschaft
    Inventors: Ulrich Buhler, Joachim Ribka, Horst Tappe, Kurt Roth
  • Patent number: 4500715
    Abstract: 1,3,4-Thiazole derivatives of the formula ##STR1## wherein R.sub.26 ' denotes a C.sub.1 -C.sub.8 -alkyl radical which is optionally substituted by hydroxyl, halogen, cyano, C.sub.1 -C.sub.4 -alkoxy, carboxyl, aminocarbonyl or C.sub.1 -C.sub.4 -alkoxycarbonyl, a C.sub.2 -C.sub.4 -alkenyl radical, a cyclohexyl radical which is optionally substituted by C.sub.1 -C.sub.4 -alkyl, a phenyl, benzyl or phenylethyl radical which is optionally substituted by halogen, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, a C.sub.1 -C.sub.2 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, mono- or di-C.sub.1 -C.sub.4 -alkylaminocarbonyl, aminocarbonyl, mono- or di-C.sub.1 -C.sub.4 -alkylaminosulphonyl, 2-thienyl, 2-furyl, 2-tetrahydrofuryl, amino, C.sub.1 -C.sub.4 -alkylamino or di-(C.sub.1 -C.sub.4 -alkyl)-amino radical or a phenylamino or benzylamino radical which is optionally substituted by C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy and R.sub.27 ' denotes a C.sub.1 -C.sub.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: February 19, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventor: Hauke Furstenwerth
  • Patent number: 4497734
    Abstract: Asymmetrical 1:2 chromium complex dyestuffs which, in the form of the free acid, correspond to the formula ##STR1## wherein X represents CO or a direct bond andm represents 0 or 1 andthe rings a, b and c and, if present, fused-on benzene rings can carry further substituents customary in the chemistry of metal complex dyestuffs,are used for dyeing materials containing amide groups, in particular leather, and produce dyeings having a green hue and good general fastness properties.
    Type: Grant
    Filed: August 3, 1982
    Date of Patent: February 5, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventor: Winfried Mennicke
  • Patent number: 4496480
    Abstract: Compounds of the general formula I ##STR1## where R is substituted alkyl and K is the radical of a coupling component free from unsaturated aliphatic radicals, are very useful for dyeing cellulose esters and synthetic polyesters.
    Type: Grant
    Filed: February 1, 1983
    Date of Patent: January 29, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Udo Bergmann, Johannes P. Dix, Guenter Hansen, Ernst Schefczik
  • Patent number: 4491481
    Abstract: A pigment composition comprising(a) an organic pigment and(b) from 0.5% to 20% by weight, based on the weight of organic pigment, of a pigment derivative having the formula:A--[N.dbd.N--B].sub.nwherein n is 1 or 2, A is an aryl or heterocyclic residue, B is an aryl or heterocyclic residue and wherein A and/or B contains a residue having the formula: ##STR1## wherein Z is a group of atoms necessary to complete a benzimidazole, pyridine, benzodiazepine, quinoline, isoquinoline or naphthimidazole residue, gives printing inks and especially paint media having improved tinctorial strength, gloss and especially improved rheological properties.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: January 1, 1985
    Assignee: Ciba-Geigy Corporation
    Inventors: George H. Robertson, David Price, Raymond N. Birrell