Patents by Inventor Bernhard Rieger

Bernhard Rieger 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).

  • Foam material comprising linear, isotactic polymers
    Patent number: 6759445
    Abstract: The present invention relates to form materials comprising polymeric material wherein the structure of the polymeric material contains elastic amorphous areas of nano-scale-size reinforced with self arranged crystalline domains of nano-crystals.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: July 6, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Valery Alexandrovich Dyatlov, Bernhard Hanke, Bernhard Rieger, Judith Preuschen
  • Bodies of polymeric material comprising linear, isotactic polymers
    Patent number: 6746780
    Abstract: The present invention relates to articles comprising bodies of polymeric material. Specifically, the present invention relates to bodies of elastic polymeric material.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: June 8, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Bernhard Rieger, Mike Orroth, Gian De Belder
  • Phenylcyclohexanes and a liquid-crystalline medium
    Publication number: 20040089845
    Abstract: Novel phenylcyclohexanes of the formula I 1
    Type: Application
    Filed: October 30, 2003
    Publication date: May 13, 2004
    Inventors: Andreas Wachtler, Reinhard Hittich, Eike Poetsch, Herbert Plach, David Coates, Bernhard Rieger, Joachim Krause
  • Synthetic material comprising a network polymer
    Publication number: 20040092677
    Abstract: The present invention relates to synthetic material comprising a network polymer. The material has a set of less than 0.1% after having been stretched to 300% of its original length for 10 minutes.
    Type: Application
    Filed: November 4, 2003
    Publication date: May 13, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Bernhard Hanke, Bernhard Rieger, Tim Bast
  • Coating material comprising linear isotactic polymers
    Patent number: 6727003
    Abstract: The present invention relates to articles comprising elements at least partially coated with polymeric material wherein the structure of the polymeric material contains elastic amorphous areas of nano-scale-size reinforced with self arranged crystalline domains of nano-crystals. An article, comprising an element and a polymeric coating material covering at least portion of the surface of said element characterized in that said coating material comprises a polyolefinic homopolymer having an isotacticity of less than 60% of mmmm pentad concentration, is claimed.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: April 27, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Valery Alexandrovich Dyatlov, Bernhard Hanke, Bernhard Rieger, Mike Orroth
  • Compatbilizer and modifier for polymeric compositions comprising polyolefins
    Publication number: 20040019139
    Abstract: The present invention relates to polymeric compositions comprising at least one polyolefin and a compatibilizer and/or a modifier. The polymeric composition comprises a first component and a second component, the first component being a first polymeric material comprising C2 to C20 linear or branched stereoregular polyolefins. The second component is a polyolefinic homopolymer having an isotacticity within the range of 25% to 60% of [mmmm] pentad concentration.
    Type: Application
    Filed: November 26, 2002
    Publication date: January 29, 2004
    Inventors: Bernhard Hanke, Bernhard Rieger, Valeri Alexandrovich Dyatlov, Mike Orroth, Gian De Belder
  • Phenylcyclohexanes and a liquid-crystalline medium
    Patent number: 6677002
    Abstract: Novel phenylcyclohexanes of the formula I: in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1═Q2═H and simultaneously X═CN, Y and/or Z are F.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: January 13, 2004
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Andreas Wächtler, Reinhard Hittich, Eike Poetsch, Herbert Plach, David Coates, Bernhard Rieger, Joachim Krause
  • Liquid-crystalline medium
    Patent number: 6673268
    Abstract: A MIM-liquid crystal display comprising a MIM diode array, a pair of parallel substrates and a nematic liquid crystalline medium disposed between the pair of substrates, characterized in that the nematic liquid crystalline medium is based on a) a component A comprising one or more compounds of the formula I b) a component B comprising one or more compounds of the formula II in which R1, R2, R3, Z1, Z2, Z3, Z4, Q, X, L1, L2, m and n have the meaning given herein.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: January 6, 2004
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Bernhard Rieger, Atsushi Sawada, Hideo Ichinose, Herbert Plach
  • Method for the production of olefin/carbon monoxide copolymers
    Patent number: 6670443
    Abstract: A process for preparing linear, alternating carbon monoxide copolymers, in which at least one olefinically unsaturated compound having from two to twenty carbon atoms (component K1) and carbon monoxide are copolymerized in the presence of a) metal complexes, b) if desired, a protonic or Lewis acid, and c) if desired, a hydroxyl compound, comprises metering into the copolymerization, as it proceeds, at least one olefinically unsaturated compound having from two to twenty carbon atoms (component K2≠component K1) in the form of pulses, i.e. as a regular or irregular sequence of feed, for which the term pulse is used, and non-feed. Carbon monoxide copolymers obtainable from said process are used for producing fibers, films or moldings, and the fibers, films and moldings produced from these polymers are described.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: December 30, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Queisser, Michael Geprägs, Bernhard Rieger, Wolfgang Huhn
  • Liquid-crystal medium, and electro-optical liquid-crystal display
    Patent number: 6649228
    Abstract: The present invention relates to liquid-crystalline media which comprise at least one compound of the formula I and at least one compound of the formula II in which the parameters are as defined herein, to the use of these liquid-crystal media in electro-optical displays, and to these displays, in particular STN-LCDs.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: November 18, 2003
    Assignee: Merck Patent Gesellschaft mit Beschraenkter Haftung
    Inventors: Juliane Suermann, Bernhard Rieger
  • Nematic liquid crystal mixtures and a matrix liquid crystal display
    Patent number: 6649088
    Abstract: A nematic liquid crystal mixture having a positive dielectric anisotropy &Dgr;∈ of at least +4 and a birefringence &Dgr;n of at least 0.12, characterized in that the mixtures comprises one or more components having the core structure wherein L1, L2, Y and Z are each independently of one another H or F, one of Q1 and Q2 is 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene and the other residue Q1 or Q2 is —CH2CH2—, —CH2CH2CH2CH2— or—if at least one of L1, L2, Y and Z denotes F—also a single bond, whereby this core structure can be optionally further fluorinated in the benzene rings.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: November 18, 2003
    Assignee: Merck Patent GmbH
    Inventors: Bernhard Rieger, Volker Reiffenrath, Reinhard Hittich
  • Matrix liquid crystal display
    Publication number: 20030207046
    Abstract: The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.
    Type: Application
    Filed: March 10, 2003
    Publication date: November 6, 2003
    Applicant: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Georg Weber, Ludwig Pohl, Reinhard Hittich, Herbert Plach, Bernhard Scheuble, Takamasa Oyama, Bernhard Rieger, Hans Adolf Kurmeier, Ekkehard Bartmann
  • High molecular weight polyolefin and catalyst and process for polymerising said polyolefin
    Publication number: 20030187158
    Abstract: The present invention relates to polyolefins and in particular to polyolefins comprising a C3-C20 monomer and having a molecular weight of at least 700 kg/mol preferably 1000 kg/mol. The present invention further relates to a hafnium based metallocene catalyst and a process for making such polyolefins.
    Type: Application
    Filed: April 8, 2003
    Publication date: October 2, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Judith Preuschen, Bernhard Rieger, Carsten Troll
  • Linear, isotactic polymers, process for preparing same, and use thereof
    Publication number: 20030176612
    Abstract: The invention refers to a linear, isotactic polymer which has a structure of one or several C2 to C20 olefins, of which the isotacticity, due to a statistic distribution of stereoscopic errors in the polymer chain, is within the range of from 25 to 60 % of [mmmm] pentad concentration with the proviso that an arbitrary or rather regular sequence of isotactic and atactic blocks is excluded, the polymer having a mean molecular weight Mw within the range of from 100,000 to 800.000 gms/mol and a TG of from −50 to +30.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 18, 2003
    Inventor: Bernhard Rieger
  • Catalyst combination and a process for preparing linear, isotactic polymers
    Publication number: 20030166803
    Abstract: The invention concerns a catalyst combination for preparing linear isotactic polymers, wherein said catalyst combination contains a metal complex and an activator and a process for preparing linear, isotactic polymers which have a structure of which the tacticity varies within the range of between 25 and 60% of [mmmm] pentad concentration, an arbitrary or rather regular sequence of isotactic and atactic blocks being excluded, in which process a C2 to C20 olefin are reacted with the catalyst combination.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 4, 2003
    Inventor: Bernhard Rieger
  • Catalyst combination and a process for preparing linear, isotatic polymers
    Patent number: 6576726
    Abstract: The invention concerns a metallocene catalyst composition for preparing linear isotactic polymers, wherein said catalyst composition contains a metal complex and an activator. The invention also concerns a process for preparing linear, isotactic polymers which have a structure of which the tacticity varies within the range of between 25 and 60% of [mmmm] pentad concentration, in which process a C2 to C20 olefin is polymerized in the presence of catalyst composition.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: June 10, 2003
    Inventor: Bernhard Rieger
  • Matrix liquid crystal display
    Patent number: 6562419
    Abstract: The invention relates to a matrix liquid crystal display containing integrated non-linear elements and a liquid crystal mixture which has a particularly high resistivity.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 13, 2003
    Assignee: MERCK Patent Gesellschaft mit beschrankter Haftung
    Inventors: Georg Weber, Ludwig Pohl, Reinhard Hittich, Herbert Plach, Bernhard Scheuble, Takamasa Oyama, Bernhard Rieger, Hans Adolf Kurmeier, Ekkehard Bartmann
  • Linear, isotactic polymers, process for preparing same, and use thereof
    Patent number: 6555643
    Abstract: The invention refers to a linear, isotactic polymer which has a structure of one or several C2 to C20 olefins, of which the isotacticity due to a statistic distribution of stereoscopic errors in the polymer chain, is within the range of from 25 to 60% of [mmmm] pentad concentration, the polymer having a mean molecular weight Mw within the range of from 100,000 to 800,000 g/mol and a Tg of from −50 to 30° C.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: April 29, 2003
    Inventor: Bernhard Rieger
  • Liquid-crystal medium, and electro-optical liquid-crystal display
    Publication number: 20020104983
    Abstract: The present invention relates to liquid-crystalline media which comprise at least one compound of the formula I and at least one compound of the formula II 1
    Type: Application
    Filed: October 29, 2001
    Publication date: August 8, 2002
    Applicant: MERCK PATENTGESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Juliane Suermann, Bernhard Rieger
  • Liquid-crystal composition, methods of adjusting the resistance, and substituted phenols
    Publication number: 20020084444
    Abstract: The present invention relates to liquid-crystal mixtures having specific resistance values, comprising acidic compounds. The present invention furthermore relates to liquid-crystal displays containing these liquid-crystal mixtures.
    Type: Application
    Filed: July 19, 2001
    Publication date: July 4, 2002
    Applicant: Merck Patent Gesellschaft Mit
    Inventors: Michael Darius, Volker Reiffenrath, Kazuaki Tarumi, Bernhard Rieger, Michael Heckmeier, Marcus Reuter, Peer Kirsch