Patents Represented by Attorney Kevin T. Mansfields
  • 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
  • Patent number: 6719922
    Abstract: The present invention relates to a mixture of fluorescent whitening agents comprising 20 to 70% by weight of a compound of formula (1), 30 to 80% of a compound of formula (2) and 0.5 to 5% of a compound of formula (3), compositions containing the mixture and the use of the compositions for whitening synthetic fibers, in particular polyester.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: April 13, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dieter Reinehr, Hanspeter Sauter, Hans Kramer, Werner Schreiber
  • Patent number: 6719906
    Abstract: A process for the preparation of concentrated solutions or suspensions of anionic organic compounds is described, which process comprises a) acidifying an aqueous solution or dispersion of an anionic organic compound that comprises salts and/or impurities to a pH of 4.5 or less, if the pH is above that value, so that the anionic organic compound becomes insoluble in water and precipitates out in the form of the free acid, b) bringing the suspension obtained from the previous step to a salt content below 2% by weight, based on the total weight of retentate, by means of ultra-filtration with a ceramic membrane or an acid-resistant organic membrane having a pore size of from 1 to 20 nm, and c) optionally washing out of the salts with water at a pH of less than 4.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: April 13, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jacek Malisz, Adolf Käser, Rainer Kaufel, Holger Lautenbach, Elke Polley, Martina Hoffmann
  • Patent number: 6720454
    Abstract: The invention relates to a process for the cis-selective preparation of cyclic amines of the sertralin type by reductive alkylation of cyclic imines or their precursors and catalytic hydrogenation in the presence of copper-containing catalysts and in the presence of a protic solvent.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: April 13, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Heinz Steiner, Marc Thommen, Hans-Peter Jalett, Markus Benz
  • Patent number: 6710146
    Abstract: The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b1) at least one multifunctional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyl and a free radical initiator or b2) at least one multifunctional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyl-ether. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, the (co)polymers obtainable by this process and the use of multifunctional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyls in combination with a free radical initiator, or a multi-functional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyl-ethers for controlled polymerization. In a particularly preferred embodiment at least one additional heating step at a temperature from 140 to 280° C. is applied after polymerization is completed.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: March 23, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Wiebke Wunderlich, Rudolf Pfaendner, Raymond Seltzer, James Peter Galbo
  • Patent number: 6706930
    Abstract: There is described a process for the preparation of halogenated hydroxydiphenyl compounds of formula (1) by acylation of a halogenated benzene compound (first stage), etherification of the acylated compound with a halogenated phenol compound, which is not further substituted in the ortho-position (second stage), oxidation of the etherified compound (third stage) and hydrolysis of the oxidized compound in a fourth stage, wherein the reaction of the second stage is carried out in the presence of K2CO3 and any desired copper catalyst, where K2CO3 is used in a concentration of from 0.5 to 30 mol, based on the phenol compound employed of formula (6), according to the reaction scheme (I) in which R1 and R2 independently of one another are F, Cl or Br; R3 and R4 independently of one another are hydrogen; or C1-C4alkyl; m is 1 to 3; and n is 1 or 2. The compounds of formula (1) are used for protecting organic materials and articles from microorganisms.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: March 16, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Armando Di Teodoro, Werner Hölzl, Dieter Reinehr, Rudolf Zink
  • Patent number: 6706812
    Abstract: Polyorganosiloxane mixtures are obtainable by reacting linear polysiloxanes containing Si—H-bonds with linear dihydroxypolysiloxanes and amino-functional silanes. The reaction is carried out in such a way that the resultant product mixture still contains Si—H— bonds and leads to crosslinked structures. The polysiloxane mixtures obtained are useful for hydrophobicizing fiber materials, especially nonwovens.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: March 16, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Harald Chrobaczek, Ingo Görlitz, Erich Rössler, Mark Oelschläger
  • Patent number: 6706923
    Abstract: Perfluoroalkyl-substituted amines, acids, amino acids and thioether acid compounds containing a perfluoroalkyl-iodoalkyl or perfluoroalkyl-alkene group as well as derivatives thereof, are described. They are useful as surfactants in a variety of applications where low surface tensions are required, including coating formulations for glass, wood, metal, cement, paper, textiles, as foam control agents in polyurethane foams and especially in aqueous fire-fighting formulations.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: March 16, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Marlon Haniff, Ted Deisenroth, John Jennings, Karl Friedrich Mueller
  • Patent number: 6706330
    Abstract: The invention relates to a process for coating a surface through graft polymerization, characterized in that before graft polymerization, the surface is modified, in the presence of an amine of formula: wherein R1 is hydrogen or a group R4, R2 and R3 are each independently a group R4, and R4 is [-1,2-C2-C3alkylen-T-]n-H wherein T is O or NH and n is a number from 1 to 3, by a compound having a functional group: wherein R5 to R7 are each C1-C4alkyl. The amount of amine is preferably from 5 to 500 g/m2 of surface of the substrate particle. The amount of the trialkoxysilane compound is preferably from 0.1 to 2 g/m2 of surface of the substrate particle. The process for coating a surface is particularly useful for effect pigments.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: March 16, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Ryuichi Takahashi, Adrian Schulthess, Kimiya Takeshita, Fritz Herren, Patrice Bujard
  • Patent number: 6696479
    Abstract: Novel crystalline forms of Fluvastatin sodium hydrates were found, referred to hereinafter as polymorphic Forms C, D, E and F. Furthermore, the present invention is directed to processes for the preparation of these crystalline forms, a process for the preparation of highly crystalline Fluvastatin sodium Form A, and pharmaceutical compositions comprising the crystalline forms.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: February 24, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Paul Adriaan Van Der Schaaf, Claudia Marcolli, Martin Szelagiewicz, Andreas Burkhard, Heinz Wolleb, Annemarie Wolleb
  • Patent number: 6696406
    Abstract: A liquid fluorescent whitening agent formulation comprising: a) a compound of formula (1), in which R1 represents hydrogen, 1-5 C-alkyl, 1-5 C-alkoxy or halogen, M represents hydrogen, an alkaline- or alkaline earth-metal, or ammonium; b) a polyhydroxy compound; c) 5 to 95% water, whereby the ratio of the compound of Formula (1) to the polyhydroxy compound is between 10:90 and 90:10 parts by weight and the total weight of these compounds in the formulation is between 5 and 95% and, optionally, auxiliary stabilizing agents and the use thereof for the manufacture of detergents with improved shade consistency.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: February 24, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Gerhard Merkle, Jürgen Kaschig, Josef Zelger, Serge Schroeder
  • Patent number: 6693218
    Abstract: Described is a process for the preparation of compounds of formula (1a) which comprises reacting an isomeric mixture consisting of from 75 to 95% of compound of formula (2a) and from 5 to 25% of a compound of formula (2b) with methylamine, in a suitable solvent, to form a sertraline-imine isomeric mixture consisting of from 75 to 95% of formula (1a) and from 5 to 25% of formula (1b)(A1), or reacting an isomeric mixture consisting of from 75 to 95% of a compound of formula (2a) and from 5 to 25% of a compound of formula (2b) with methylamine, in a suitable solvent, using suitable methods of isolation to form an enriched sertraline-imine isomeric mixture, consisting of >99% of a compound of formula (1a) and <1% of a compound of formula (1b)(A2); and then subjecting the sertraline-imine isomeric mixture obtained according to reaction route (A1) or (A2), in a suitable solvent, to recrystallisation (B), in accordance with scheme (I) wherein in formula (1a), R1, R2 and R3 are each independently of the others
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: February 17, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Marc Thommen, Andreas Hafner, Roman Kolly, Hans-Jörg Kirner, Frédéric Brunner
  • Patent number: 6689372
    Abstract: The use of oxathiazolones of formula is described R1 is phenyl unsubstituted or substituted by one or more C1-C5 alkyl, hydroxyl, halogen substituents or by a 1,3,4-oxathiazol-2-one radical. in the antimicrobial treatment of surfaces. The compounds exhibit a pronounced action against pathogenic gram-positive and gram-negative bacteria, and also against yeasts and moulds.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: February 10, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Werner Hölzl, Marcel Schnyder
  • Patent number: 6689733
    Abstract: The present invention relates to novel manganese complexes of salen ligands and the use thereof as catalysts that enhance the action of peroxy compounds in washing, cleaning, and disinfecting processes.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: February 10, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Frank Bachmann, Rachel Allemann, Josef Dannacher, Marie-Josée Dubs, Cornelia Makowka, Grit Richter, Gunther Schlingloff, Peter Weingartner, Menno Hazenkamp
  • Patent number: 6670457
    Abstract: Compounds of the formula in which the variables are as defined in the claims, which are suitable as fiber-reactive dyes for dyeing widely varying fiber materials, are described.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: December 30, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rolf Deitz, Bernhard Müller, Athanassios Tzikas
  • Patent number: 6660048
    Abstract: The aqueous dye solutions of the composition shown in claim 1 are distinguished by a good storage stability and are suitable for dyeing paper in red color shades.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: December 9, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Alfred Höhener, Roland Frick, Adolf Kaeser
  • Patent number: 6653484
    Abstract: Triazine, benzotriazole and benzophenone derivatives which are substituted or bridged with polyoxyalkylene groups, according to claim 1, and their use as UV absorbers, especially in photographic materials, in inks, including inkjet inks and printing inks, in transfer prints, in paints and varnishes, organic polymeric materials, plastics, rubber, glass, packaging materials, in sunscreens of cosmetic preparations and in skin protection compositions.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: November 25, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Vien Van Toan, Andreas Valet, Pascal Hayoz
  • Patent number: 6645257
    Abstract: A process for pigmenting wood, which comprises treating wood in succession: a) with a solution comprising from 0.01 to 80% by weight, based on the solution, of a compound of the formula A(B)x  (I), in which x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series which is attached to x groups B via one or more heteroatoms, these heteroatoms being selected from the group consisting of N, O and S and forming part of the radical A, B is hydrogen or a group of the formula  at least one group B not being hydrogen and, if x is a number from 2 to 8, the groups B being identical or different, and L is any desired group suitable for solubilization; and from 0.05 to 5% by weight, based on the solution, of a salt of the formula Kat+.An−  (II), Kat+.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: November 11, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hans-Thomas Schacht, Gilbert Moegle, Reiner Jahn, Christiane Griessen, Peter Scheibli
  • Patent number: 6635602
    Abstract: A process for the manufacture of mixtures of fluoran compounds by the reaction of keto acids of formula (II) with a compound of formula (III) in the presence of a dehydrating condensation agent, wherein R1 and R2 independently represent hydrogen; an alkyl of 1-18 carbon, a secondary alkyl with respect to the carbon atom bonded to the nitrogen atom of 3-13 carbon atoms, a cycloalkyl of 4-8 carbon atoms or a phenyl, both of which may be substituted by at least one substituted selected from the group consisting of halogen atoms and alkyls having 1-4 carbon atoms, an aralkyl of 7-10 carbon atoms; or R1 and R2, together with the adjacent nitrogen atom from a heterocyclic ring; R3 is hydrogen, an alkyl of 1-4 carbon atoms, an alkoxy of 1-4 carbon atoms, a phenyl; a substituted phenyl or a halogen; R4 is an alkyl group of 1-18 carbon atoms, a carboxyalkyl of 1-18 carbon atoms, a carboxycycloalkyl of 4-8 carbon atoms, an alkylamino of 1-18 carbon atoms, a cycloalkylamino of 4-8 carbon atoms, a dialkylamino or dicyclo
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: October 21, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James Philip Taylor, Michael Heneghan
  • Patent number: RE38469
    Abstract: A process for the manufacture of a pigment concentrate which comprises dispersing dry organic pigment granules in an organic vehicle.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: March 23, 2004
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James McGeachie McCrae, Eric William Gilmour, Jean-Luc Schwitguebel