Patents Represented by Attorney George R. Dohmann
  • Patent number: 5057562
    Abstract: A process is disclosed for the photochemical stabilization of undyed and dyed polypropylene fibre material with light stabilizers, which process comprises treating said material with an aqueous solution containing a light stabilizer from the class of the sterically hindered amines.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: October 15, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Gerhard Reinert
  • Patent number: 5057377
    Abstract: This invention relates to polymeric compositions derived by the polycondensation of heteroatom containing perfluoroalkyl terminated neopentyl glycols, and diamino, dihydroxy, or dimercapto-polysiloxanes and optionally other diols, dimercaptans or diamines with organic diisocyanates; and blends of polycondensation polymers with oxime-blocked organic polyisocyanates. These compositions and blends are useful as coatings on glass, wood, paper, leather and especially textiles.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: October 15, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Athanasios Karydas, Juliana Rodgers
  • Patent number: 5057572
    Abstract: The present invention describes aqueous, finely divided to optically clear, thermally and mechanically stable silicone emulsions, these emulsions containing, relative to the overall emulsions 3 to 25% by weight of a water-soluble emulsifier (a), 0.1 to 84% by weight of an aminoalkyl-substituted polysiloxane (b) (amine number 0.1), in which, if appropriate, is present, at least partially, in salt form, and up to 70% by weight of which may be replaced by other polysiloxanes (emulsifier:silicone ratio at least 1.2:10), up to 3% by weight of a low-molecular weight, weak acid (c) and at least 5% by weight of water, (d), the sum of a), b), c) and d) being 100% by weight.In addition, a process is also patented for the preparation and use of these emulsions.The silicone emulsions according to the invention are distinguished by excellent thermal stability.
    Type: Grant
    Filed: October 16, 1989
    Date of Patent: October 15, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Harald Chrobaczek, Gunther Tschida
  • Patent number: 5055567
    Abstract: The dyes according to the invention consist of a chromophore and a radical which, on heating, forms an isocyanate or isothiocyanate group. The latter reacts with a suitable group in the environment. Dyeings of excellent thermomigration fastness are obtained. The disclosed dyes are of the formulae ##STR1## where F is the radical of an azo, anthraquinone or tricyanovinyl dye which is free of water-solubilizing groups,B and B' are each independently of the other a direct bond or a bridge member, selected from the group consisting of a straight-chain or branched alkylene group having 2 to 8 C atoms or one of the following groups ##STR2## where R is hydrogen or C.sub.1 -C.sub.6 alkyl, n is an integer from 1 to 8 and m is an integer from 2 to 4,Z is O or S,V is a group which at a temperature between 180.degree. and 240.degree. C. is eliminated as a radical HV, andV' is a direct bond which is cleaved at a temperature between 180.degree. and 240.degree. C.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: October 8, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Liechti, Karl Emmenegger, Martin Trottmann
  • Patent number: 5055595
    Abstract: Etherified fluorescein compounds of the general formula ##STR1## in which X.sub.1 is alkyl having 4 to 12 carbon atoms or cycloalkyl and X.sub.2 is alkyl which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or cycloalkyl, the rings A and B, independently of one another, are unsubstituted or substituted by halogen, lower alkyl or lower alkoxy, and the ring D is unsubstituted or substituted by halogen, nitro, lower alkyl, lower alkoxy, lower alkylthio, lower alkoxycarbonyl, amino, mono-lower alkylamino or di-lower alkylamino, with the exception that X.sub.1 and X.sub.2 are not at the same time n-butyl.These novel lactone compounds are particularly suitable for use a color formers in pressure-sensitive or heat-sensitive recording materials and they produce intense yellow, orange or rose-pink colorations.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: October 8, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Bernhard Wietfeld
  • Patent number: 5053055
    Abstract: There are disclosed aqueous dispersions comprising water-insoluble or sparingly soluble fluorescent whitening agents, dispersants, further optional assistants and a copolymer of 2-vinylpyrrolidone and 3-vinylpropionic acid, their preparation and the use thereof for whitening textile fibre materials. These novel dispersions are storage-stable.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: October 1, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Werner Fringeli, Martin Jollenbeck
  • Patent number: 5051436
    Abstract: Novel N-acyl- and N-sulfonylbenzo-1,2,3-thiadiazole-7-carboxylic acid amides of formula ##STR1## in which X.sub.1 and X.sub.2 independently of one another are each hydrogen or together 1 to 3 halogen atoms; A is sulfonyl or carbonyl; Y is phenyl or phenyl substituted by C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, halogen, C.sub.1 -C.sub.2 haloalkyl, C.sub.1 -C.sub.2 alkoxycarbonyl, C.sub.1 -C.sub.3 alkanoyloxymethyl, cyano and/or by nitro; R is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.3 -C.sub.5 alkenyl or C.sub.3 -C.sub.5 alkynyl; and in which, furthermore, the group ##STR2## wherein A.sub.1 is methylene, carbonyl or sulfonyl; X.sub.3 is hydrogen, methyl or halogen; m is 2, 3 or 4; and n is zero, 1 or 2.The novel active ingredients have plant-protecting properties and are suitable especially for the preventive protection of plants against attack by phytopathogenic microorganisms such as fungi, bacteria and viruses.
    Type: Grant
    Filed: February 16, 1990
    Date of Patent: September 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Walter Kunz, Rolf Schurter
  • Patent number: 5051111
    Abstract: There are disclosed aqueous dispersions comprising water-insoluble or sparingly soluble fluorescent whitening agents, water-soluble fluorescent whitening agents, dispersants, optional solubilizers, further optional assistants and a copolymer of 2-vinylpyrrolidone and 3-vinylpropionic acid, their preparation and the use thereof for whitening polyester/cellulose fiber material. These novel dispersions are storage-stable and temperature-stable.
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: September 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Italo Anceschi, Werner Fringeli, Martin Jollenbeck, Georges Mahler, Willy Schurings
  • Patent number: 5048458
    Abstract: There is disclosd a novel method which, based on the brief application of electrostatic fields, induces to lasting useful and desirable properties in fish, which properties cannot otherwise be induced at all or can only be induced by dint of substantial additional investment in time and material resources. The simplicity of the measures proposed in this invention and the significant results obtained will revolutionize the breeding of fish, especially edible fish, but also ornamental fish.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: September 17, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Guido Ebner, Heinz Schurch
  • Patent number: 5049238
    Abstract: A method of dyeing paper utilizing dyes suitable for dyeing paper in blue shades having the formula ##STR1## wherein R is hydrogen, --OH, --OR.sup.1 , --NH.sub.2, NHR.sup.1, --NHCOR.sup.1, --NHSO.sub.2 R.sup.1, --NHCONH.sub.2 or --NHCONHR.sup.1, in which R.sup.1 is unsubstituted alkyl or alkyl substituted by C.sub.1 -C.sub.4 -alkoxy, hydroxy-substituted C.sub.1 -C.sub.4 -alkoxy, phenyl, phenoxy or phenylcarbamoyl, in each instance the phenyl moiety being unsubstituted or substituted by C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkoxy or phenoxy, R.sup.1 is also unsubstituted phenyl or naphthyl or phenyl or naphthyl which is substituted by sulfo, carboxy, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, C.sub.1 -C.sub.4 -alkylcarbonylamino or C.sub.1 -C.sub.4 -alkoxycarbonylamino;X, each independently of the other, is hydrogen, unsubstituted alkyl or alkoxy or alkyl or alkoxy which is substituted by C.sub.1 -C.sub.4 -alkoxy, hydroxy-substituted C.sub.1 -C.sub.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: September 17, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Adolf Kaser
  • Patent number: 5049569
    Abstract: Novel acylated urea derivatives of the general formula ##STR1## in which: X is hydrogen or halogen; Y is halogen; R.sub.1, R.sub.2 independently of one another are hydrogen, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkyl which is substituted by halogen, cyano, C.sub.1 -C.sub.4 alkoxy or COO-C.sub.1 -C.sub.3 alkyl, or is C.sub.3 -C.sub.5 alkenyl or C.sub.3 -C.sub.5 alkenyl which is substituted by halogen, or is C.sub.3 -C.sub.5 alkynyl or C.sub.3 -C.sub.5 alkynyl which is substituted by halogen, or is C.sub.3 -C.sub.7 cycloalkyl or C.sub.3 -C.sub.7 cycloalkyl which is substituted by C.sub.1 -C.sub.2 alkyl, halogen, cyano or COO-C.sub.1 -C.sub.3 alkyl, or is phenyl, benzyl or phenyl or benzyl which are substituted by C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy or halogen; and R.sub.1 can furthermore also be the radical Q or Q which is substituted by C.sub.1 -C.sub.3 alkyl, C.sub.3 -C.sub.7 cycloalkyl, C.sub.1 -C.sub.3 alkoxy or halogen, where Q can be bonded to the N atom via a C.sub.1 -C.sub.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: September 17, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Walter Kunz
  • Patent number: 5045084
    Abstract: A process for the trichromatic dyeing or printing of natural and synthetic polyamide fibre materials, which comprises using at least one red dye of the formula ##STR1## in which D,R.sub.1,R.sub.2,R.sub.3,R.sub.4 and n are as defined in claim 1, together with at least one yellow or orange dye of the formula ##STR2## in which B.sub.1,B.sub.2,E.sub.1 and X are as defined in claim 1, or ##STR3## in which Z.sub.1,Z.sub.2 and Z.sub.3 are as defined in claim 1, or mixtures of dyes of the formulae (2) and (3), or a yellow dye of the formula ##STR4## in which W.sub.1,W.sub.2,W.sub.3 and W.sub.4 are as defined in claim 1, or mixtures of dyes of the formulae (2),(3) and (4) and at least one blue dye of the formula ##STR5## in which one Y and Z.sub.4 are as defined in claim 1 are used. The process according to the invention is suitable for dying natural or synthetic polyamide materials from aqueous liquor or for printing with printing pastes; and in particular for dyeing from short liquors.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: September 3, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Harald Walter
  • Patent number: 5041290
    Abstract: Useful plants can be protected against soil-borne and seed-borne diseases by coating the seeds of said plants with fungus spores, in particular ascospores of Chaetomium globosum, mycelium, bacteria or culture extracts thereof. The protection is in some cases superior to that afforded by sugar beet and cotton seeds which are coated with commercially available fungicides.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: August 20, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Daniel Gindrat, Daniel Walther
  • Patent number: 5041539
    Abstract: The invention relates to a process for the preparation of concentrated storage-stable aqueous solutions of yellow azo- and azoxystilbene dyes which are obtained by self-condensation of 4-nitrotoluene-2-sulfonic acid in the presence of an alkali metal hydroxide, by converting the sparingly soluble alkali metal salt of the dye into a water-soluble ammonium salt by double cation exchange via a lipophilic ammonium salt, which process comprises carrying out the double ion exchange in a two-phase system of nitrobenzene/water and using, for the first ion exchange a di- or trialkylamine containing a total of 12 to 40 carbon atoms and, for the second ion exchange, a mono-, di- or trialkanolamine containing 2 to 4 carbon atoms in each alkyl moiety.The concentrated storage-stable dye solutions so obtained are particularly suitable for dyeing paper.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: August 20, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Athanassios Tzikas, Paul Herzig, Jurgen Markert
  • Patent number: 5039642
    Abstract: The present patent application relates to stable, finely-dispersed, aqueous single-component silicone catalysts which have been obtained by combining a silicone dispersion which is free to essentially free of lower monohydric alcohols and has been prepared in a conventional manner in the presence of long-chain liquid alcohols having 6 to 18 carbon atoms and with the use of known epoxyamine prepolymers as emulsifiers with a separately prepared, conventional nonionic or cationic dispersion of organometallic compounds.In addition, a process for the preparation of this emulsion and the use thereof are described.The catalysts according to the invention are distinguished by not having a flashpoint or having a flashpoint above 65.degree. C. and nevertheless having excellent stability, in particular mechanical stability.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: August 13, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Harald Chrobaczek, Josef Lechlmair
  • Patent number: 5039822
    Abstract: Chromogenic phthalides of formula ##STR1## wherein X, R.sub.1 and R.sub.2 are each independently of the other C.sub.3 -C.sub.6 alkyl,Y.sub.1 is hydrogen, alkyl of not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxyl, cyano or lower alkoxy, or is acyl or 1 of 12 carbon atoms, benzyl or benzyl which is substituted by halogen, cyano, lower alkyl or lower alkoxy,Y.sub.2 is hydrogen, lower alkyl or phenyl, andthe benzene rings A and B are each independently of the other unsubstituted or substituted by halogen, nitro, lower alkyl, lower alkoxy, lower alkylthio, lower alkoxycarbonyl, amino, mono-lower alkylamino, di-lower alkylamino or lower alkanoylamino.These phthalides are particularly suitable for use as color formers in pressure-sensitive or heat-sensitive recording materials and give intense blue or violet blue colored images.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: August 13, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Rudolf Zink
  • Patent number: 5037967
    Abstract: Disperse dyes containing a monoazo coupling component of the formula ##STR1## in which X is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, acylamino, halogen or a group of the formula --NH--CO--NHQ in which Q is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl,Y is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkoxy,R is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl or phenyl, or Y and R, together with the nitrogen atom and the two C atoms linking them, form a 5-membered or 6-membered ring,B is a linear or branched C.sub.2 -C.sub.6 alkylene radical,W is halogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy,Z is halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or nitro andm and n are each 0, 1, 2 or 3.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: August 6, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Angelo D. Casa, Peter Liechti, Max Dempfle
  • Patent number: 5037449
    Abstract: Reactive dyes of the formula ##STR1## in which Fa is the radical of an organic dye of the monoazo or polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylene-tetracarbimide series, X.sub.1 and X.sub.2, independently of one another, are each halogen, R.sub.1 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.4 alkyl, R.sub.2 is substituted or unsubstituted C.sub.1 -C.sub.4 alkyl and r is the number 1 or 2, produce on hydroxyl- or nitrogen-containing textile materials dyeings which have good fastness properties.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: August 6, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Karl Hoegerle, Urs Lehmann
  • Patent number: 5037979
    Abstract: Novel cationic compounds of formula ##STR1## wherein R.sub.1 and B are as defined in claim 1, are used for photochemically stabilizing basic dyeable polyamide, polyacrylonitrile and polyester fibre materials. The preparation of the novel compounds and of the novel starting materials is also described.
    Type: Grant
    Filed: July 18, 1989
    Date of Patent: August 6, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Alfred Hohener, Kurt Burdeska, Gerhard Reinert
  • Patent number: 5037847
    Abstract: Novel 3-aryl-4-cyanopyrrole derivatives of the general formula ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other unsubstituted or halogen-substituted alkyl, halogen, nitro or hydrogen, or R.sub.1 and R.sub.2, when taken together, are --OCF.sub.2 O,R.sub.3 is alkyl, cycloalkyl or benzyl, andR.sub.4 is hydrogen or an alkali metal or alkaline earth metal.The novel compounds are used for controlling harmful microorganisms, in particular phytopathogenic fungi. They can be used together with suitable formulation assistants as compositions, and are also suitable for preventing infestation of cultivated plants by harmful microorganisms.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: August 6, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Marius Sutter