Plural Triazine Rings Containing Patents (Class 544/193.2)
  • Patent number: 11505651
    Abstract: A novel polymer having high glass transition temperature and an excellent balance between heat resistance, high refractive index and mechanical properties, and a composition and molded article containing the polymer are provided. The polymer according to the invention has a first structural unit represented by at least one of formulae (1-1), (1-2) and (1-3) below and a second structural unit having either a secondary amino structure or a tertiary amino structure at two or more terminals.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 22, 2022
    Assignee: JSR Corporation
    Inventors: Ryouyuu Hifumi, Toshiaki Kadota, Nobuyuki Miyaki, Shintarou Fujitomi, Yasutaka Yoshida, Ryouji Tatara
  • Patent number: 11459258
    Abstract: The invention relates to the methods for sewage treatment contaminated by mechanical impurities, fats, proteins and other organic and inorganic compounds, and can be used for purification and water disinfection contaminated by heavy and radioactive metals, saturated or unsaturated fats, filtrate from landfills for solid household waste, disposals of meat processing plants, and water contaminated with oil and petroleum products. The method for treatment and disinfection of industrial wastewater includes flotation, electrocoagulation and filtration.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: October 4, 2022
    Assignee: Unique Equipment Solutions LLC
    Inventor: Oleksandr Yuriiovych Mykytiuk
  • Patent number: 10383960
    Abstract: Disclosed herein are isotopically labeled calcofluor derivatives and uses of such to detect fungi, such as filamentous fungi, including Aspergillus species, such as by positron emission tomography (PET) scanning.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 20, 2019
    Assignees: The United States of America, as Represented by the Secretary, Department of Health and Human Services, The Research Foundation of the State Univeristy of New York
    Inventors: Peter R. Williamson, Dale O. Kiesewetter, John Panepinto, Jin Qiu
  • Patent number: 9968693
    Abstract: Disclosed herein are isotopically labeled calcofluor derivatives and uses of such to detect fungi, such as filamentous fungi, including Aspergillus species, such as by positron emission tomography (PET) scanning.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 15, 2018
    Assignees: The United States of America, as represented by the Secretary, Department of Health and Human Services, The Research Foundation of the State University of New York
    Inventors: Peter R. Williamson, Dale O. Kiesewetter, John Panepinto, Jin Qiu
  • Patent number: 9109331
    Abstract: Fluorescent whitening agent 71 (FB #71) 4,4?-bis[4-anilino-6-morpholino-1,3,5-triazin-2-yl]amino-2,2?-stilbene disodium salt (CAS #16090-02-1) is used on the wet-end papermaking process and coating papermaking process to increase the brightness of paper.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: August 18, 2015
    Inventors: Meng Jun Li, Eric Ji Wei Li
  • Publication number: 20150037396
    Abstract: The present application discloses a targeting composition that actively targets chitin-like materials, such as those found in fungi, a drug delivery vehicle comprising a micelle that comprises the targeting composition and one or more anti-fungal drugs, and methods of using the drug delivery vehicle.
    Type: Application
    Filed: August 3, 2013
    Publication date: February 5, 2015
    Inventors: Thomas Meehan, Quyen Ong
  • Patent number: 8894815
    Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid and of organic acids which do not need extra solubilizing additives.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: November 25, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon, Martin Oberholzer
  • Publication number: 20140339462
    Abstract: The present invention discloses compounds of 4,4?-diaminostilbene-2,2?-disulphonic acid which are useful as optical brighteners to bleach fibres, cellulose and in particular paper and cardboard.
    Type: Application
    Filed: July 17, 2014
    Publication date: November 20, 2014
    Inventors: Ferruccio Berte', Patrick Alborghetti
  • Patent number: 8859679
    Abstract: The instant invention relates to storage stable aqueous solutions of stilbene optical brighteners with polyvinyl alcohols which can be directly used by the papermaker in that they may be diluted with water and/or be metered directly into a coating composition, to provide coated papers of a particularly high whiteness.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: October 14, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Andrew Clive Jackson, Alec Stewart Tindal, Mariela Gauto
  • Publication number: 20140203212
    Abstract: The present invention relates to a composition comprising a fluorescent whitening agent and a tertiary alkanolamine, a stable aqueous solution of such a composition and use of such composition for the bleaching of textile fibres or paper.
    Type: Application
    Filed: July 27, 2012
    Publication date: July 24, 2014
    Applicant: 3V Sigma S.p.A
    Inventors: Ferruccio Berte', Paolo Alioli, Marco Brena
  • Patent number: 8784612
    Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid and of organic acids which do not need extra solubilizing additives.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: July 22, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon, Martin Oberholzer
  • Publication number: 20140162083
    Abstract: The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent compounds can be used in association with polymers, or can be incorporated into polymers, and the polymers used in a coating composition on the article surface. The compounds allow for visual or machine inspection of coating properties such as uniformity of coverage.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 12, 2014
    Applicant: SurModics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan, Nathan A. Lockwood, Bruce M. Jelle
  • Patent number: 8608907
    Abstract: A composition suitable for paper brightening, wherein the composition contains one or more specified fluorescent whitening agents with taurine groups. The composition is used for whitening paper, in particular at the wet-end, in the size press or by coating.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: December 17, 2013
    Assignee: Blankophor GmbH & Co. KG
    Inventors: Bernhard Hunke, Michael Kraemer, Andrei Tauber, Günter Klug
  • Publication number: 20120329699
    Abstract: Novel compounds based on diaminostilbene are provided. The compounds conform to the general structures The compounds are useful as optical brighteners. Compositions, such as laundry compositions, containing such compounds are also provided.
    Type: Application
    Filed: September 4, 2012
    Publication date: December 27, 2012
    Applicant: MILLIKEN & COMPANY
    Inventors: Robert L. Mahaffey, Eduardo Torres, Dominick J. Valenti, Patrick D. Moore, Leland G. Close, JR.
  • Publication number: 20120199302
    Abstract: The present invention relates to fluorescent whitening agent compositions containing at least two specific disulfo-type fluorescent whitening agents for optically whitening paper or board.
    Type: Application
    Filed: September 17, 2010
    Publication date: August 9, 2012
    Applicant: BLANKOPHOR GMBH & CO. KG
    Inventors: Bernhard Hunke, Andrei Tauber, Michael Kraemer, Guenter Klug
  • Patent number: 8221588
    Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid which do not need extra solubilising additives.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 17, 2012
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon
  • Publication number: 20120040881
    Abstract: The invention relates to new triazine derivatives, the use of new triazine derivatives as graying-inhibiting active substances, and washing agent compositions comprising the new triazine derivatives as graying-inhibiting active substances along with surfactant and other ingredients found in detergent compositions.
    Type: Application
    Filed: September 22, 2011
    Publication date: February 16, 2012
    Applicant: Henkel AG & KGaA
    Inventors: Thomas Eiting, Birgit Glüsen
  • Publication number: 20110287999
    Abstract: Novel compounds based on diaminostilbene are provided. The compounds conform to the general structures The compounds are useful as optical brighteners. Compositions, such as laundry compositions, containing such compounds are also provided.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Inventors: Robert L. Mahaffey, Eduardo Torres, Dominick J. Valenti, Patrick D. Moore, Leland G. Close, JR.
  • Patent number: 7812156
    Abstract: The instant invention relates to stilbene optical brightening agents which combine a high solubility in water while providing superior fluorescent whitening effects when applied to the surface of paper in either the size-press or in a pigmented coating composition and which show a reduced anionic charge. The instant optical brighteners may also be used for finishing of textiles.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 12, 2010
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Andrew Clive Jackson, Nicholas Philip Lock
  • Publication number: 20100159763
    Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid which do not need extra solubilising additives.
    Type: Application
    Filed: July 12, 2006
    Publication date: June 24, 2010
    Inventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon
  • Publication number: 20090293210
    Abstract: The present invention relates to the use of a combination of a free fluorescent whitening agent and cationic polymer as a brightening agent for a synthetic single or blended textile, especially polyester textile, and to a corresponding brightening agent as well as a laundering process for brightening a synthetic, single or blended textile, which is characterized by a) preparing a composition by contacting a free fluorescent whitening agent with a cationic polymer, and b) treating said synthetic, single or blended textile with the composition prepared in step a).
    Type: Application
    Filed: June 7, 2006
    Publication date: December 3, 2009
    Inventors: Robert Hochberg, Oliver Becherer, Bernard Schultz, Goetz Scheffler, René Schlatter
  • Publication number: 20090227712
    Abstract: The invention relates to compounds of formula (I) wherein R1, R2, R3 and R4 independently represent OR3 or NR6R7; R5, R6 and R7 independently represent hydrogen, substituted or unsubstituted alkyl, especially C1-C4 alkyl, or substituted or unsubstituted aryl, especially C6-C10 aryl; R6, R7 can also form an aliphatic or aromatic ring, together with the N atom to which they are bonded and optionally other heteroatoms; M represents hydrogen, an equivalent of a monovalent or bivalent metal ion, especially from the group of alkali metals or alkaline earth metals, or of an optionally organically substituted ammonium ion; and B1 represents a bivalent binding link.
    Type: Application
    Filed: June 15, 2005
    Publication date: September 10, 2009
    Inventors: Heinz Giesecke, Reiner Gottschalk, Bernhard Hunke, Dirk Pfuetzenreuter
  • Publication number: 20080202716
    Abstract: The present invention provides 4,4?-bis(triazinylamino)stilbene-2,2?-disulfonic acid derivatives of formula (1), compositions of amphoteric 4,4?-bis(triazinylamino)stilbene-2,2?-disulfonic acid derivatives, a process for their preparation, aqueous formulations thereof, their use as an optical brightener for paper and to paper treated with these derivatives.
    Type: Application
    Filed: October 10, 2005
    Publication date: August 28, 2008
    Inventors: Goetz Scheffler, Rene Schlatter
  • Patent number: 7270771
    Abstract: The present invention relates to a fluorescent whitening agent comprising a mixture of two symmetrically and one asymmetrically substituted triazinylaminostilbene disulphonic acids, novel asymmetrically substituted derivatives, a process for their preparations and use of the mixture for whitening synthetic or natural organic materials, especially paper and for the fluorescent whitening and improvement of sun protection factors of textile materials.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: September 18, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Fabienne Cuesta, Georges Metzger, Roland Naef, Peter Rohringer, Rainer Hans Traber
  • Patent number: 7198731
    Abstract: The present invention relates to the use of compounds of formula (I) wherein all substituents are as defined in the claims as optical brighteners as well as to new mixtures of optical brighteners.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 3, 2007
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Andrew Clive Jackson
  • Patent number: 7166564
    Abstract: The invention relates to novel bis(triazinylamino)stilbenes which are suitable as UV absorbers and fluorescent whiteners for textile materials and also bring about an increase in the treated textile material.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: January 23, 2007
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Goetz Scheffler, Hauke Rohwer, René Schlatter, Robert Hochberg
  • Patent number: 7019134
    Abstract: Water soluble, amphoteric optical brighteners (W) comprising at least one brightener-characteristic radical X which contain at least one anionic substituent and covalently linked over at least one tertiary amino group Z to at least one non-chromophoric, essentially aliphatic, polyquaternary ammonium-hydrocarbon radical Y containing more than one quaternary ammonium group and in which each hydrocarbon radical is optionally interrupted by and/or substituted with one or more further heteroatoms, have surprising brightening properties, especially in papermaking, and in the form of their aqueous solutions are of notable stability.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 28, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson
  • Patent number: 6929667
    Abstract: A method for the fluorescent whitening of cotton in a discontinuous process comprising contacting the cotton, I an aqueous bath having a pH value of 6 or less, with one or more compounds of the Formula (I) wherein R1 represents an —SO2R3, —SOR3, CO2M, —CO2R3, —CONR3R4, —CN or —NO2 substituent, R2 is —NH2, —NH(C1-C4alkyl), —N(C1-C4alkyl)2, —NH(C2-C4hydroxyalkyl), —N(C2-C4hydroxyalkyl)2, —NH(C1-C4alkoxy)(C1-C4alkyl), —N[(C1-C4alkoxy)(C1-C4alkyl)]2, NHC2—C4alkylsulphonic acid, morpholineo, piperidino pyrrolidino, an amino acid or amino acid amide residue from which a hydrogen atom on the amino group has been removed, —OC1-C4alkyl or —OC1-C4hydroxyalkyl, R3 and R4 each, independently, represent hydrogen, C1-C4alkyl, C2-C4hydroxyalkyl or C1-C4alkoxyC1-C4alkyl and M is H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubsituted by C1-C4alkyl, C2-C4hydroxyalkyl or a mixture thereof, some of which are new
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: August 16, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Fabienne Cuesta, Dieter Reinehr, Hans Kramer, Georges Metzger, Bernd Wockenfuss
  • Patent number: 6919452
    Abstract: The following 4,4?-bis(1,3,5-triazinylamino)stilbene-2,2?-disulfonic acid derivative is well soluble in water: in which each of R11 and R12 is hydrogen, or a specifically substituted or unsubstituted alkyl group; each of R21 and R22 is hydrogen, a specifically substituted or unsubstituted alkyl group, a specifically substituted or unsubstituted aryl group; M is hydrogen, alkali metal, alkaline earth metal, ammonium, or pyridinium.
    Type: Grant
    Filed: October 3, 2000
    Date of Patent: July 19, 2005
    Assignee: Fuji Photo Film Co., LTD
    Inventors: Keizo Kimura, Yoshiharu Yabuki, Yasufumi Nakai
  • Patent number: 6890454
    Abstract: The invention relates to an optical brightener mixture (W) comprising optical brighteners (A) of formula (Ia), and (B) of formula (Ib) and optionally (C) of formula (Ic) as defined herein, their concentrated aqueous solutions (S), their production and their use.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: May 10, 2005
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson, Alec Stewart Tindal
  • Patent number: 6806366
    Abstract: The present invention provides a new process and intermediates for the production of antiviral compound 4′,4-bis-{4,6-bis-[3-(bis-carbamoyl-methyl-1-sulfamoyl)-phenylamino]-[1,3,5]triazin-2-ylamino}-biphenyl-2,2′-disulfonic acid and its pharmaceutically acceptable salts.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: October 19, 2004
    Assignee: Wyeth
    Inventors: Silvio Iera, Christopher A. Demerson, Jacqueline F. Lunetta, Maria Papamichelakis, Michael F. MacEwan, Wayne G. McMahon, John R. Potoski, Arthur G. Mohan
  • Patent number: 6723846
    Abstract: The present invention relates to compounds having formula (1): wherein each R1 represents, independently, a linear C1-C4-alkylene residue which is unsubstituted or substituted by hydroxy, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-hydroxy- or alkoxy-alkoxy, —OCOM, —OCOC1-C4-alkyl, or an amino acid residue from which a hydrogen atom on the amino group has been removed; each R2 represents, independently, a linear C1-C4-alkylene residue which is unsubstituted or substituted by hydroxy, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-hydroxy- or alkoxy-alkoxy, —OCOM, —OCOC1-C4-alkyl, —CO2M, CO2C1-C4-alkyl SO3M or phenoxy which is unsubstituted or substituted by halogen, C1-C4-alkyl or C1-C4-alkoxy, —CO2M or CO2C1-C4-alkyl, NH3 or mono- or disubstituted amino; or phenyl which is unsubstituted or substituted by 1 to 3 SO3M, SO2NHC1-C4-alkyl, —SO2NH2, —CO2M, —CO2M, —CO2C1-C4-alkyl, —CONH2, —CONHC1-C4-alkyl, —NHCOC1-C4-alkyl or mono- or disubstituted amino groups;
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: April 20, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Georges Metzger, Serge Hauger, Fabienne Cuesta, Christophe Bulliard, Peter Rohringer, Marc Roger Grienenberger
  • Publication number: 20040063706
    Abstract: A process for the preparation of a 4,4′-bistriazinylamino-stilbene-2,2′-disulphonic acid compound of formula (I) in which, independently, each R1 represents —NH2, —NH(C1-c10alkyl), —N(C1-C10alkyl)2, —NH(C2-C4hydroxyalkyl), —NH(C2-C4hydroxyalkyl)2, —N(C1-C10alkyl)(C2-C4hydroxyalalkyl), —NH(C1-C4alkoxy-C2-C4hydroxyalkyl), —N(C1-C4alkoxy-C2-C6hydroxyalkyl)2, —N(C1-C4alkoxy-C2-C4hydroxyalkyl)(C1-C10alkyl), —N(C1-C4alkoxy-C2C4hydroxyalkyl)(C2-C4hydroxyalkyl), —NH(C1-C4alkoxy-C1-C4alkoxy-C1-C4-alkyl), —N(C1-C4alkoxy-C1-C4alkoxy-C1-C4-alkyl)2, —N(C1-C4alkoxy-C1-C4alkoxy-C1-C4alkyl)(C1-C6alkyl), —N(C1-C6alkoxy-C1-C4alkoxy-C2-C4alkyl)(C2-C4hydroxyalkyl)-NH(C5-C7cycloalkyl), —N(C5-C7cycloalkyl)2, —NH(C6-C10aryl), NH(C7-C13aralkyl) or a morpholino, piperidino or pyrrolidino residue; M represents H, Na, Li, K, Ca, Mg, ammonium, or ammonium that is mono-, di-, tri- or tetrasubstituted by C1C4alkyl, C2-C4hydroxyalkyl
    Type: Application
    Filed: July 7, 2003
    Publication date: April 1, 2004
    Inventors: Georges Metzger, Dieter Reinehr, Hanspeter Sauter, Helena Dbaly
  • Patent number: 6596864
    Abstract: This invention relates to compounds of the formula (I) where Z is SO3M, COOR1, CONR1, SO2NHR1, NHCOR1, COR2, or CN, where R1 is M or C1-C3-alkyl and R2 is C1-C3-alkyl or phenyl, X is O or NR3, where R3 is hydrogen or C1-C4-alkyl, Y is hydrogen or C1-C4-alkyl, M is hydrogen, an alkali metal cation, or an optionally substituted ammonium ion, n is from 4 to 35, and m is 0, 1 or 2.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: July 22, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Uwe Vogt, Rolf Brockmann, Thomas Roick, Karl-Rudolf Gassen, Ulrich Feldhues
  • Patent number: 6482241
    Abstract: The present invention provides, as a first aspect, an asymmetric compound having the formula: in which M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; Xa and Xb are the same or different and each is NH2; NH(C1-C4alkyl); NH(C2-C4alkoxyalkyl); N(C1-C4alkyl)2; N(CH2CH2OH)2; a group NH—Z—NR1R2 in which Z is C2-C14alkylene or optionally substituted arylene, and R1 and R2 are the same or different and each is C1-C12alkyl or R1 and R2, together with the nitrogen atom to which they are each attached, form a morpholino, piperidino or piperazino ring; an aminoacid residue; C1-C4alkoxy; hydroxy-substituted-C2-C4alkoxy; and Ya and Yb are the same or different and each is a substituted amino group having both UVA and UVB-absorbing properties having the formula: in which R3 is CN; SO2R5 in which R5 is, C1-C12alkyl, C1-C12alkoxy, NH2, NH(C1-C4alkyl), N(C1-C4alkyl)2, N(CH2CH2OH)2, C1-C4alkoxy or hydroxy-substituted-C2-C4alkoxy;
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: November 19, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Georges Metzger, Dieter Reinehr, Claude Eckhardt, Fabienne Cuesta
  • Patent number: 6469006
    Abstract: This invention provides compounds having drug and bio-affecting properties, their pharmaceutical compositions and method of use. In particular, the invention is concerned with indoleoxoacetyl piperazine derivatives. These compounds possess unique antiviral activity, whether used alone or in combination with other antivirals, antiinfectives, immunomodulators or HIV entry inhibitors. More particularly, the present invention relates to the treatment of HIV and AIDS.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: October 22, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Wade S. Blair, Milind Deshpande, Haiquan Fang, Pin-Fang Lin, Timothy P. Spicer, Owen B. Wallace, Hui Wang, Tao Wang, Zhongxing Zhang, Kap-Sun Yeung
  • Patent number: 6464735
    Abstract: The present invention provides new compounds having the formula: in which X is O or, preferably, NH; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; n is 1 or 2; and each R2, independently, is hydrogen, C1-C3alkyl, halogen, cyano, COOR in which R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, SO3M in which M has its previous significance or, when n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl; provided that those compounds are excluded in which a) X is NH, n is 1 and R2 is SO3M in which M has its previous significance; or b) X is NH, n is 2 and one R2 is SO3M in which M has its previous significance, and the other R2 is hydrogen, methyl or halogen; or c) X is NH, n is 1, R1 is gl
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 15, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Rohringer, Georges Metzger, Dieter Reinehr
  • Patent number: 6458169
    Abstract: The present invention provides new compounds having the formula: in which X is O or, preferably, NH; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; n is 1 or 2; and each R2, independently, is hydrogen, C1-C3alkyl, halogen, cyano, COOR in which R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, SO3M in which M has its previous significance or, when n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl; provided that those compounds are excluded in which a) X is NH, n is 1 and R2 is SO3M in which M has its previous significance; or b) X is NH, n is 2 and one R2 is SO3M in which M has its previous significance, and the other R2 is hydrogen, methyl or halogen; or c) X is NH, n is 1, R1 is gl
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: October 1, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Rohringer, Georges Metzger, Dieter Reinehr
  • Patent number: 6365737
    Abstract: A process for the preparation of a 4,4′-bis-(triazinylamino)-stilbene-2,2′-disulphonic acid compound of formula (1) is disclosed, characterized in that (a) in a first reaction step cyanurchloride is reacted with the disodium salt of 4,4′-diaminostilbene-2,2′-disulfonic acid to give the intermediate of formula (2); (b) in a second reaction step the compound of formula (2) is reacted with a compound of formula R1—H and/or R2—H to give the compound of formula (3); (c) in a third step the compound of formula (3) is reacted with the compound of the formula R3H, and reaction step (a) and/or (c) are carried out in a medium consisting of a mixture of water and a polyglycol to give the compound of formula (1), wherein R1, R2 and R3, independently, are phenylamino; phenylamino substitued by C1-C3alkyl, halogen, cyano, COOR or COR; CONH—R; SO2NH—R; NH—COR; mono- or disulphonated phenylamino; morpholino; piperidino; pyrrolidino; —NH2; —NH
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: April 2, 2002
    Assignee: Ciba Specialty Chemical Corporation
    Inventors: Georges Metzger, Fabienne Cuesta, Peter Rohringer, Dieter Reinehr, René Schlatter
  • Patent number: 6331626
    Abstract: The present invention provides a hydrate of the 4,4′-di-triazinylamino-2,2′-di-sulfostilbene compound having the formula: in which M and M1 independently represent hydrogen, an alkaline-, an alkaline earth metal or ammonium, x is a number within the range of from 1 to 30, and the crystal form of the hydrate (I) being characterised by an X-ray diffraction pattern which is essentially as set out in the accompanying FIGS. 1 to 11; or a mixture containing one or more of the hydrates of the 4,4′-di-triazinylamino-2,2′-di-sulfostilbene compound having the formula (I); processes for the preparation of the new hydrates; and the use of the new hydrates for the preparation of concentrated aqueous formulations of fluorescent whitening agents.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: December 18, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Rohringer, André Geoffroy, Andreas Burkhard, Erwin Marti, Werner Schreiber, Josef Zelger
  • Patent number: 6248887
    Abstract: Process for the preparation of stilbene-disulphonic acids containing bis-alkoxy-triazinyl-amino, or derivatives thereof, characterized in that stilbene-disulphonic acids containing bis-chlorotriazinyl-amino, or derivatives thereof, are reacted with at least 10 molar equivalents, based on the stilbene-disulphonic acid compound, of a C1-C4-monoalkanol.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: June 19, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Feldhues, Uwe Vogt, Udo Eckstein, Rolf Brockmann, Dietmar Fiedel
  • Patent number: 6210449
    Abstract: The present invention provides new compounds having formula (1), in which X is 0 or, preferably, NH; M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; n is 1 or 2; and each R2, independently, is hydrogen, C1-C3alkyl, halogen, cyano, COOR in which R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, SO3M in which M has its previous significance or, when n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl; provided that those compounds are excluded in which a) X is NH, n is 1 and R2 is SO3M in which M has its previous significance; or b) X is NH, n is 2 and one R2 is SO3M in which M has its previous significance, and the other R2 is hydrogen, methyl or halogen; or c) X is NH, n is 1, R1 is glycine and R2 is H or C
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: April 3, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Rohringer, Georges Metzger, Dieter Reinehr