Patents Represented by Attorney George R. Dohmann
  • Patent number: 5334727
    Abstract: Pyrazole derivatives of a variety of polycyclic pigments, particularly quinacridone pigments, corresponding to the general formula ##STR1## wherein Q is the primary pigment structure; and the use of such derivatives as additives to pigment systems to provide a broad range of performance benefits to the resulting pigment compositions.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: August 2, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Colin D. Campbell
  • Patent number: 5332717
    Abstract: The invention relates to compounds of formula ##STR1## wherein W, X, Y.sup.1, Y.sup.2, Z, R.sup.1, R.sup.2 and R.sup.14 are as defined in the description, and to the preparation thereof, to weed control compositions and plant-growth-regulating compositions comprising such compounds as active ingredients, and to the use of the active ingredients or compositions for controlling weeds and for regulating plant growth.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: July 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Christoph Luthy, Jean-Pierre Obrecht
  • Patent number: 5332814
    Abstract: Process for the preparation of racemic compounds of the formula I ##STR1## or enantiomers thereof, in which B is the radical of a nucleic base from the series comprising purine, a purine analogue or a pyridine analogue, and R is H or a protective group R.sub.1, by reactinga) a compound of the formula II or enantiomer thereof ##STR2## with a compound of the formulae X--CO--X, X--CS--X, X--SO--X, X--SO.sub.2 --X, R.sub.2 --NCO, R.sub.3 R.sub.4 N--C(O)--R.sub.5, X.sub.2 P--R.sub.6 or X.sub.2 P(O)--R.sub.6, in which X is a leaving group, R.sub.2 is, for example, C.sub.1 -C.sub.18 alkyl, R.sub.3 and R.sub.4 are, for example, H or C.sub.1 -C.sub.18 alkyl, R.sub.5 is, for example, H or C.sub.1 -C.sub.12 alkyl, and R.sub.6 is, for example, C.sub.1 -C.sub.12 alkyl or C.sub.1 -C.sub.12 alkoxy, to give a compound of the formula III or enantiomers thereof ##STR3## in which Y is the groups --C(O)--, --C(S)--, --SO--, --SO.sub.2 --, R.sub.2 NH--CH.dbd., R.sub.3 R.sub.4 N--CR.sub.5 .dbd., R.sub.6 P.dbd. and R.sub.6 (O)P.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: July 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Heinz Moser
  • Patent number: 5329006
    Abstract: Chromogenic lactam compounds of the formula ##STR1## in which the ring A is an aromatic or heteroaromatic radical which has 6 ring atoms and may contain a fused aromatic ring, it being possible for both the ring A and the fused ring to be substituted;the ring B is an unsubstituted or substituted benzene ring;Z is ##STR2## R is hydrogen; unsubstituted or substituted C.sub.1 -C.sub.12 alkyl, cycloalkyl having 5 to 10 carbon atoms; unsubstituted or substituted aryl or aralkyl; C.sub.1 -C.sub.12 acyl; N-(lower alkyl)carbamoyl; or N-arylcarbamoyl which is unsubstituted or substituted on the ring;Q is C.sub.1 -C.sub.12 alkylene, aryl-C.sub.1 -C.sub.4 alkylene, 1,2-cycloalkylene, 1,2- or 1,8-arylene or aralkylene; andX.sub.1 and X.sub.2, independently of one another, are each hydrogen; unsubstituted or substituted alkyl having a maximum of 12 carbon atoms; acyl having 1 to 8 carbon atoms; cycloalkyl having 5 to 10 carbon atoms; or unsubstituted or ring-substituted aralkyl or aryl; or (X.sub.1 and X.sub.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: July 12, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Baumann, Ian J. Fletcher
  • Patent number: 5326901
    Abstract: Novel 2-(2,2-difluorocyclopropyl)-acetic acid derivatives of formula I ##STR1## wherein A is oxygen or --NR.sub.1 --,B is C.sub.2 -C.sub.6 alkylene,D is oxygen, sulfur or --O--CH.sub.2 --,E is phenyl; phenyl substituted by from one to three substituents selected from the group halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 haloalkyl and C.sub.1 -C.sub.4 alkoxy; a five-membered aromatic heterocycle having from one to three hetero atoms selected from the group nitrogen, oxygen and sulfur, a five-membered aromatic heterocycle having from one to three hetero atoms selected from the group nitrogen, oxygen and sulfur that is substituted by one or two substituents selected from the group halogen, C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.3 -haloalkyl; a six-membered aromatic heterocycle having from one to three nitrogen atoms; or a six-membered aromatic heterocycle having from one to three nitrogen atoms that is substituted by one or two substituents selected from the group halogen, C.sub.1 -C.sub.4 alkyl and C.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: July 5, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Manfred Boger
  • Patent number: 5324463
    Abstract: An electrically conductive composition of (a) at least one oxidized polycationic polyheteroaromatic compound and (b) at least one polyanion of a film-forming thermoplastic polymer containing sulfated alcohol groups ##STR1## in repeating structural units in form of films or filaments is drawn at temperatures below the melt/decomposition temperature to increase electrical conductivity and to improve mechanical properties. The material may be used as electrodes, electrically conductive filaments or components for electromagnetic screening.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: June 28, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wernet, Jean Stoffer
  • Patent number: 5324791
    Abstract: The action of thermoplastic polymers to whose polymer backbone aliphatic or cycloaliphatic groups are bonded via a group --O--, --O--CO--, --CO--OR.sup.22 --OCO-- or --CO--O--, said aliphatic or cycloaliphatic groups being substituted by Cl, Br and/or iodine in the .alpha.-, .beta.-, .gamma.- or .omega.-position, on an unsubstituted or substituted tetrathio-, tetraseleno- or tetratelluronaphthalene or -tetracene contained in this polymer gives electrically conducting compositions by the formation of charge transfer complexes. These compositions are suitable for the production of antistatic or electrically conducting mouldings, sheets, filaments, fibres, coatings and composites.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: June 28, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Jurgen Finter, Bruno Hilti, Carl W. Mayer, Ernst Minder
  • Patent number: 5322525
    Abstract: A process is disclosed for treating polyamide fiber containing materials which process comprises applying a benzofuran-2-one compound to the material in order to enhance its moulding stability. In addition, compositions containing a fluorescent whitening agent and a benzofuran-2-one, and optionally one or more dyes, are disclosed.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: June 21, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Manfred Rembold, Claude Eckhardt, Peter Nesvadba
  • Patent number: 5322922
    Abstract: Mixtures of salts of organic carboxylic acids and organic compounds of non-salt character, dissolved in a C.sub.1 -C.sub.4 alkanol, can be concentrated or separated with a semipermeable membrane made from a copolyamide or copolyimide-amide which contains (a) a first aromatic diamine radical and (b) a second aromatic diamine radical which carries --SO.sub.3 M groups, where M is H.sup..sym., a monovalent to polyvalent metal cation or an ammonium cation. Provided the first diamine radical contains C.sub.1 -C.sub.4 alkyl groups in the o-positions to the amino groups, the copolymers are radiation-sensitive and can be used for producing protective layers or relief images, development being carried out in an aqueous alkaline medium.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: June 21, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Joseph Berger, Wolfgang Wernet
  • Patent number: 5322853
    Abstract: Novel benzotriazolesulfonic acid derivatives of formula ##STR1## wherein: R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy having at least two identical or different halogen atoms, CF.sub.3, nitro or the group N(R')R", wherein R' and R" are each independently of the other C.sub.1 -C.sub.4 alkyl;R.sub.2 is phenoxy or phenylthio each of which is unsubstituted or mono- to tri-substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy having at least two identical or different halogen atoms, cyano, nitro, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, phenyl, 2-phenylethynyl or by a further phenoxy radical that is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl and/or by C.sub.1 -C.sub.4 alkoxy; or R.sub.2 is the radical O--CH.sub.2 --O;R.sub.3 is alkyl, aryl or aralkyl having a maximum of 14 carbon atoms, these radicals can be substituted by halogen, C.sub.1 -C.sub.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: June 21, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Ackermann, Max Schellenbaum
  • Patent number: 5320648
    Abstract: The invention relates to a process for dyeing or printing hydroxyl group containing fibre materials, which comprises using at least one yellow or orange dyeing dye of formula ##STR1## wherein the substituents are as defined in claim 1, together with at least one blue dyeing dye and/or at least one red dyeing dye. Level dyeings and prints with good allround fastness properties are obtained by the process of the invention.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: June 14, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: David H. McMullan, Rudolf Schaulin, Urs Lauk
  • Patent number: 5319080
    Abstract: Compounds of the formula I in the form of the racemates or enantiomers thereof, ##STR1## in which R.sub.1 and R.sub.2 independently of one another are hydrogen or a protective group, and B is a purine or pyrimidine radical or an analogue thereof, can be used as antiviral active ingredients or for the preparation of biologically active oligonucleotides.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: June 7, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Christian Leumann
  • Patent number: 5316852
    Abstract: A coated material comprising a substrate which is coated with a layer of a pyrrolopyrrole of formula I ##STR1## wherein R.sub.1 and R.sub.2 may be 4-pyridyl and X.sub.1 and X.sub.2 are O, said compound of formula I being at least partially in the form of a salt of a strong acid, is suitable for use as an optical recording material and, owing to its electrical conductivity and photoconductivity, as antistatically treated material, as sensor, photoreceptor and solar battery.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: May 31, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Jin Mizuguchi, Gerald Giller, Alain C. Rochat
  • Patent number: 5314120
    Abstract: In a device for applying plant-protecting compositions and the like, having a tank for carrier fluid, for example water, and a feed pump that pumps carrier fluid from this tank through a pipe to which spray nozzles are connected, and having a metering pump that is connected by a connecting pipe to a preparation container and is driven by the carrier fluid supplied by the feed pump, in order to avoid a complicated apparatus for controlling the concentration of the preparation in the carrier fluid and to achieve reliable and accurate metering, the metering pump (5) is connected in series with the feed pump (2) so that the whole of the carrier fluid flowing through the pipe (3) passes through the metering pump (5), wherein the carrier fluid drives a drive element (12) in the metering pump (5), which in turn drives a metering mechanism (13, 14) which is connected to the connecting pipe (10) leading to the preparation container (11) and is provided with a setting sleeve (15) for the concentration of the preparatio
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: May 24, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Karl L. Nau, Hans Raffel, Heinrich David
  • Patent number: 5312917
    Abstract: Water-soluble triazine derivatives of formula (1) are disclosed. The novel compounds are representatives of sterically hindered amines (HALS stabilisers) and are suitable for enhancing the thermal and photochemical stability of undyed and dyed polyamide fibre materials.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: May 17, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Francesco Fuso, Gerhard Reinert
  • Patent number: 5310909
    Abstract: Compounds of the formula I ##STR1## in which X is O, S, SO, SO.sub.2 or NR.sub.13, R.sub.13 is, for example, methyl, and R.sub.1 to R.sub.12, independently of one another, are, for example, H, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 Alkoxy, halogen or --CN. The compounds are photosensitive and photochromic and are suitable as photosensitizers and simultaneously as color indicators, and as photoswitchable color filters.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: May 10, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Evelyn Fischer, Walter Fischer, Jurgen Finter, Kurt Meier, Martin Roth
  • Patent number: 5306342
    Abstract: Process for the production of a flocculation-resistant pigment, comprising after-treating an arylamide pigment which has been subjected to a dyestuff treatment, the after-treatment comprising a further treatment of the dyestuff-treated arylamide pigment with an arylamide yellow dyestuff, under alkaline conditions at elevated temperature.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: April 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: John A. Stirling
  • Patent number: 5306693
    Abstract: N-phenylsulfonyl-N'-pyrimidinyl- and -triazinyl-ureas of formula I ##STR1## wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, C.sub.1 -C.sub.4 haloalkyl, COO--R.sub.2 or A--R.sub.3 ;R.sub.2 is C.sub.1 -C.sub.5 alkyl;R.sub.3 is C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.4 alkoxyalkyl or C.sub.1 -C.sub.5 haloalkyl;X is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkyl mono- to tri-substituted by halogen; C.sub.1 -C.sub.3 alkoxy or C.sub.1 -C.sub.3 alkoxy mono- to tri-substituted by halogen;A is oxygen, sulfur, SO or SO.sub.2 ;Y is halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkyl mono- to tri-substituted by halogen; C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.
    Type: Grant
    Filed: August 18, 1992
    Date of Patent: April 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Willy Meyer
  • Patent number: 5300663
    Abstract: Compounds of formula V, ##STR1## wherein R is unsubstituted C.sub.6 -C.sub.14 aryl or C.sub.6 -C.sub.14 aryl which is substituted by C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.12 alkoxy, C.sub.1 -C.sub.12 alkylthiol, phenyl, benzyl, --CN, --CF.sub.3, halogen or --COOR.sub.5, and R.sub.5 is H, C.sub.1 -C.sub.18 alkyl, cyclohexyl, cyclopentyl, phenyl, C.sub.1 -C.sub.12 alkylphenyl, benzyl or C.sub.1 -C.sub.12 alkylbenzyl, and at least one of the substituents R.sub.1 to R.sub.4 is an organic thiol, sulfoxyl or sulfonyl group, and the other members R.sub.1 to R.sub.4 are H, F, Cl or Br, are reversible photochromic systems which can be used for contrast formation or light absorption.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: April 5, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Walter Fischer, Evelyn Fischer, Ernst Minder, Manfred Hofmann, Jurgen Finter, Heinz Spahni
  • Patent number: 5298032
    Abstract: Cellulosic textile materials can be dyed with disperse dyes from supercritical CO.sub.2 by treating the textile materials with an auxiliary that promotes dye uptake, typically polyethylene glycol.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: March 29, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Schlenker, Peter Liechti, Dieter Werthemann, Angelo D. Casa