Patents by Inventor Bernd Klingert

Bernd Klingert has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5880186
    Abstract: The invention relates to stabilized filled polyolefins comprising a filler and a macrocyclic compound which contains a radical of formula ##STR1## in the macrocyclic structure or in a side-group, said macrocyclic structure consisting of at least 8 atoms and wherein the substituents R are each independently of one another methyl, ethyl or propyl, or two substituents R at the same carbon atom are together also a pentamethylene radical, and a is 0, 1 or 2. The invention also relates to a method of stabilizing filled polyolefins and to the use of the macrocyclic compounds as stabilizers.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: March 9, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Roberto Todesco, Jean-Roch Pauquet, Bernd Klingert
  • Patent number: 5645973
    Abstract: A process is described for the preparation of photopolymerizable compositions, wherein the photopolymerizable compositions can be photopolymerized by the irradiation of emission lines of differing wavelength from a UV/VIS laser light source, and contain a photopolymerizable compound and at least two photoinitiators, by adjusting the sensitivity to radiation. The ratio between the concentrations of the individual photoinitiators is so adjusted that the composition has virtually the same optical density for the radiation of the different emission lines at which the photoinitiators are effective.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: July 8, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Manfred Hofmann, Bernd Klingert, Max Hunziker, Rolf Wiesendanger, Adrian Schulthess, Paul Bernhard
  • Patent number: 5573889
    Abstract: A process is described for the preparation of photopolymerizable compositions, wherein the photopolymerizable compositions can be photopolymerized by the irradiation of emission lines of differing wavelength from a UV/VIS laser light source, and contain a photopolymerizable compound and at least two photoinitiators, by adjusting the sensitivity to radiation. The ratio between the concentrations of the individual photoinitiators is so adjusted that the composition has virtually the same optical density for the radiation of the different emission lines at which the photoinitiators are effective.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: November 12, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Manfred Hofmann, Bernd Klingert, Max Hunziker, Rolf Wiesendanger, Adrian Schulthess, Paul Bernhard
  • Patent number: 5504217
    Abstract: Radical cation salts having the composition of formula I ##STR1## wherein x has a value from -0.1 to +0.2. These radical cation salts crystallize in needle form and are electric conductors. They can be incorporated in polymers to form conductive networks of crystal needles in a polymer matrix. The polymers can be used for making antistatically treated mouldings or electrodes.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: April 2, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Hilti, Ernst Minder, Carl W. Mayer, Bernd Klingert
  • Patent number: 5387627
    Abstract: Radical cation salts having the composition of formula I ##STR1## wherein x has a value from -0.1 to +0.2. These radical cation salts crystallize in needle form and are electric conductors. They can be incorporated in polymers to form conductive networks of crystal needles in a polymer matrix. The polymers can be used for making antistatically treated mouldings or electrodes.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: February 7, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Hilti, Ernst Minder, Carl W. Mayer, Bernd Klingert
  • Patent number: 5284600
    Abstract: Radical cation salts having the composition of formula I ##STR1## wherein x has a value from -0.1 to +0.2. These radical cation salts crystallize in needle form and are electric conductors. They can be incorporated in polymers to form conductive networks of crystal needles in a polymer matrix. The polymers can be used for making antistatically treated mouldings or electrodes.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: February 8, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Bruno Hilti, Ernst Minder, Carl W. Mayer, Bernd Klingert
  • Patent number: 5106722
    Abstract: Titanocenes containing two 5-membered cyclodienyl groups, for example cyclopentadienyl, and one or two 6-membered carbocyclic or 5- or 6-membered heterocyclic aromatic rings which are substituted by a fluorine atom in at least one of the two ortho-positions to the titanium-carbon bond and contain, as a further substituent, unsubstituted or substituted 1-pyrryl, are suitable as photoinitiators for radiation-induced polymerization of ethylenically unsaturated compounds.
    Type: Grant
    Filed: August 14, 1990
    Date of Patent: April 21, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Rinaldo Husler, Bernd Klingert, Manfred Rembold, Eginhard Steiner
  • Patent number: 5008302
    Abstract: Titanocenes containing two 5-membered cyclodienyl groups, for example cyclopentadienyl, and one or two 6-membered carbocyclic or 5- or 6-membered heterocyclic aromatic rings which are substituted by a fluorine atom in at least one of the two ortho-positions to the titanium-carbon bond and contain, as a further substituent, unsubstituted or substituted 1-pyrryl, are suitable as photoinitiators for radiation-induced polymerization of ethylenically unsaturated compounds.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: April 16, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Rinaldo Husler, Bernd Klingert, Manfred Rembold, Eginhard Steiner
  • Patent number: 4963470
    Abstract: Titanocenes with silylated .pi.-cyclopentadienyl ligands in which one or two carbo- or heterocyclic aromatic rings are bonded to the titanium, the aromatic rings being substituted by fluorine, --CF.sub.3, --C.sub.2 F.sub.5, --CF.sub.2 CL or --CF.sub.2 CH.sub.3 in at least one of the two ortho-positions relative to the metal-carbon bonds, are suitable as photoinitiators for the photopolymerization of ethylenically unsaturated substrates. They are distinguished by a high sensitivity, stability to air and the action of heat, and a high activity in the region of UV light to visible light. They are furthermore readily soluble in the photopolymerizable compositions.
    Type: Grant
    Filed: January 19, 1990
    Date of Patent: October 16, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Bernd Klingert, Franciszek Sitek, Manfred Rembold
  • Patent number: 4886879
    Abstract: Zinc compounds of formula IICF.sub.3 CCl.sub.2 ZnCl.cndot.yL (II)wherein y is 1 or 2 and L is a solvent ligand selected from the group of the N-disubstituted acid amides, N-substituted lactams and the organic sulfoxides, are suitable for reaction with CO.sub.2, COS or SO.sub.2 to give, after working up, the acids of formula ICF.sub.3 CCl.sub.2 --X (I)wherein X is --CO.sub.2 H, --CSOH or --SO.sub.2 H, in good yield.
    Type: Grant
    Filed: April 1, 1988
    Date of Patent: December 12, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert W. Lang, Bernd Klingert
  • Patent number: 4759881
    Abstract: Zinc compounds of formula IICF.sub.3 CCl.sub.2 ZnCl.yL (II)wherein y is 1 or 2 and L is a solvent ligand selected from the group of the N-disubstituted acid amides, N-substituted lactams and the organic sulfoxides, are suitable for reaction with CO.sub.2, COS or SO.sub.2 to give, after working up, the acids of formula ICF.sub.3 CCl.sub.2 --X (I)wherein X is --CO.sub.2 H, --CSOH or --SO.sub.2 H, in good yield.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: July 26, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert W. Lang, Bernd Klingert